PDB Short entry for 2I91
HEADER    RNA BINDING PROTEIN/RNA                 04-SEP-06   2I91              
TITLE     60KDA RO AUTOANTIGEN IN COMPLEX WITH A FRAGMENT OF                    
TITLE    2 MISFOLDED RNA                                                        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 5'-R(*GP*CP*CP*UP*AP*CP*CP*C)-3';                          
COMPND   3 CHAIN: C, E;                                                         
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: 5'-                                                        
COMPND   7 R(*C*GP*GP*UP*AP*GP*GP*CP*UP*UP*UP*UP*CP*AP*A)-3';                   
COMPND   8 CHAIN: D, F;                                                         
COMPND   9 ENGINEERED: YES;                                                     
COMPND  10 MOL_ID: 3;                                                           
COMPND  11 MOLECULE: 60 KDA SS-A/RO RIBONUCLEOPROTEIN;                          
COMPND  12 CHAIN: A, B;                                                         
COMPND  13 SYNONYM: 60 KDA RO PROTEIN, 60 KDA RIBONUCLEOPROTEIN RO,             
COMPND  14 RORNP, TROVE DOMAIN FAMILY MEMBER 2;                                 
COMPND  15 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 MOL_ID: 2;                                                           
SOURCE   4 SYNTHETIC: YES;                                                      
SOURCE   5 MOL_ID: 3;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: XENOPUS LAEVIS;                                 
SOURCE   7 ORGANISM_COMMON: AFRICAN CLAWED FROG;                                
SOURCE   8 ORGANISM_TAXID: 8355;                                                
SOURCE   9 GENE: TROVE2;                                                        
SOURCE  10 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  11 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    VON WILLEBRAND FACTOR A, ROSSMANN-FOLD, HEAT REPEAT, MIDAS            
KEYWDS   2 MOTIF, RNA BINDING PROTEIN/RNA COMPLEX                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.M.REINISCH,A.J.STEIN                                                
REVDAT   3   24-FEB-09 2I91    1       VERSN                                    
REVDAT   2   21-NOV-06 2I91    1       JRNL                                     
REVDAT   1   17-OCT-06 2I91    0                                                
JRNL        AUTH   G.FUCHS,A.J.STEIN,C.FU,K.M.REINISCH,S.L.WOLIN                
JRNL        TITL   STRUCTURAL AND BIOCHEMICAL BASIS FOR MISFOLDED RNA           
JRNL        TITL 2 RECOGNITION BY THE RO AUTOANTIGEN.                           
JRNL        REF    NAT.STRUCT.MOL.BIOL.          V.  13  1002 2006              
JRNL        REFN                   ISSN 1545-9993                               
JRNL        PMID   17041599                                                     
JRNL        DOI    10.1038/NSMB1156                                             
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.65 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES, PANNU,             
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.65                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 96.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 34410                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.241                           
REMARK   3   FREE R VALUE                     : 0.285                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 3467                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.65                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.67                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3750                       
REMARK   3   BIN FREE R VALUE                    : 0.4740                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 58                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 8269                                    
REMARK   3   NUCLEIC ACID ATOMS       : 934                                     
REMARK   3   HETEROGEN ATOMS          : 10                                      
REMARK   3   SOLVENT ATOMS            : 561                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.009                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.63                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.30                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.85                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2I91 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-SEP-06.                  
REMARK 100 THE RCSB ID CODE IS RCSB039289.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 25-APR-05                          
REMARK 200  TEMPERATURE           (KELVIN) : 120                                
REMARK 200  PH                             : 4.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 2                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X25                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : PT-COATED TOROIDAL SI MIRROR       
REMARK 200                                   FOR HORIZONTAL AND VERTICAL        
REMARK 200                                   FOCUSSING FOLLOWED BY DOUBLE       
REMARK 200                                   FLAT SI CRYSTAL MONOCHROMATOR      
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 34410                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.650                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.5                               
REMARK 200  DATA REDUNDANCY                : 3.300                              
REMARK 200  R MERGE                    (I) : 0.13000                            
REMARK 200  R SYM                      (I) : 0.13000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.0000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.65                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.74                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.8                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.40                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.39800                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.900                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: PDB ENTRY 1YVP                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 47.17                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.33                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 18-20% PEG 6000, 250 MM MAGNESIUM        
REMARK 280  ACETATE, 100 MM SODIUM ACETATE PROTEIN WAS MIXED WITH RNA           
REMARK 280  APPROXIMATELY 1:1., PH 4.6, VAPOR DIFFUSION, HANGING DROP,          
REMARK 280  TEMPERATURE 298K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y+1/2,-Z                                             
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000       59.99000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TRIMERIC                          
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D, A                               
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TRIMERIC                          
REMARK 350 APPLY THE FOLLOWING TO CHAINS: E, F, B                               
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465       C D     1                                                      
REMARK 465     MET A     1                                                      
REMARK 465     GLU A     2                                                      
REMARK 465     ALA A     3                                                      
REMARK 465     THR A     4                                                      
REMARK 465     LYS A   136                                                      
REMARK 465     GLU A   137                                                      
REMARK 465     GLY A   138                                                      
REMARK 465     MET A   139                                                      
REMARK 465     LYS A   140                                                      
REMARK 465     CYS A   141                                                      
REMARK 465     GLY A   142                                                      
REMARK 465     MET A   143                                                      
REMARK 465     LYS A   214                                                      
REMARK 465     GLU A   215                                                      
REMARK 465     LYS A   216                                                      
REMARK 465     GLU A   217                                                      
REMARK 465     LEU A   218                                                      
REMARK 465     ILE A   538                                                      
REMARK 465     MET B     1                                                      
REMARK 465     GLU B     2                                                      
REMARK 465     ALA B     3                                                      
REMARK 465     THR B     4                                                      
REMARK 465     GLU B   137                                                      
REMARK 465     GLY B   138                                                      
REMARK 465     MET B   139                                                      
REMARK 465     LYS B   140                                                      
REMARK 465     CYS B   141                                                      
REMARK 465     GLY B   142                                                      
REMARK 465     MET B   143                                                      
REMARK 465     ILE B   538                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS(M=MODEL NUMBER;            
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470       G D   2    P    OP1  OP2                                       
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O2'  U   D    10     OP2  U   D    11              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLU A  42   CD    GLU A  42   OE1    -0.146                       
REMARK 500    GLU A  42   CD    GLU A  42   OE2    -0.107                       
REMARK 500    GLU B  42   CD    GLU B  42   OE1    -0.151                       
REMARK 500    GLU B  42   CD    GLU B  42   OE2    -0.104                       
REMARK 500    GLU B 208   CG    GLU B 208   CD     -0.098                       
REMARK 500    GLU B 208   CD    GLU B 208   OE1    -0.074                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500      U D  11   N1  -  C1' -  C2' ANGL. DEV. =  11.6 DEGREES          
REMARK 500      U F  10   N1  -  C1' -  C2' ANGL. DEV. =   8.2 DEGREES          
REMARK 500      U F  11   N1  -  C1' -  C2' ANGL. DEV. =   8.9 DEGREES          
REMARK 500    ARG A  34   CG  -  CD  -  NE  ANGL. DEV. = -15.4 DEGREES          
REMARK 500    ARG A  34   CD  -  NE  -  CZ  ANGL. DEV. =  13.1 DEGREES          
REMARK 500    ARG A  34   NE  -  CZ  -  NH1 ANGL. DEV. =   6.9 DEGREES          
REMARK 500    ARG A  34   NE  -  CZ  -  NH2 ANGL. DEV. =  -8.2 DEGREES          
REMARK 500    GLU A  42   OE1 -  CD  -  OE2 ANGL. DEV. = -19.3 DEGREES          
REMARK 500    GLU A  42   CG  -  CD  -  OE2 ANGL. DEV. =  13.0 DEGREES          
REMARK 500    ARG A  63   CD  -  NE  -  CZ  ANGL. DEV. =   8.5 DEGREES          
REMARK 500    ARG A  63   NE  -  CZ  -  NH1 ANGL. DEV. =  -6.3 DEGREES          
REMARK 500    ARG A  63   NE  -  CZ  -  NH2 ANGL. DEV. =   6.1 DEGREES          
REMARK 500    ARG A  85   CD  -  NE  -  CZ  ANGL. DEV. =   9.0 DEGREES          
REMARK 500    ARG A  85   NE  -  CZ  -  NH1 ANGL. DEV. =  -6.5 DEGREES          
REMARK 500    ARG A  85   NE  -  CZ  -  NH2 ANGL. DEV. =   6.9 DEGREES          
REMARK 500    ARG A 113   CD  -  NE  -  CZ  ANGL. DEV. =   8.8 DEGREES          
REMARK 500    ARG A 113   NE  -  CZ  -  NH1 ANGL. DEV. =  -6.3 DEGREES          
REMARK 500    ARG A 113   NE  -  CZ  -  NH2 ANGL. DEV. =   5.7 DEGREES          
REMARK 500    ARG A 146   CD  -  NE  -  CZ  ANGL. DEV. =  12.7 DEGREES          
REMARK 500    ARG A 146   NE  -  CZ  -  NH1 ANGL. DEV. =  10.3 DEGREES          
REMARK 500    ARG A 146   NE  -  CZ  -  NH2 ANGL. DEV. =  -9.2 DEGREES          
REMARK 500    ARG A 149   NE  -  CZ  -  NH1 ANGL. DEV. =  -5.6 DEGREES          
REMARK 500    ARG A 149   NE  -  CZ  -  NH2 ANGL. DEV. =   4.9 DEGREES          
REMARK 500    ARG A 174   CD  -  NE  -  CZ  ANGL. DEV. =  10.7 DEGREES          
REMARK 500    ARG A 174   NE  -  CZ  -  NH1 ANGL. DEV. =   7.3 DEGREES          
REMARK 500    ARG A 174   NE  -  CZ  -  NH2 ANGL. DEV. =  -8.0 DEGREES          
REMARK 500    ARG A 252   NE  -  CZ  -  NH1 ANGL. DEV. =   7.0 DEGREES          
REMARK 500    ARG A 252   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.7 DEGREES          
REMARK 500    GLU A 300   CA  -  CB  -  CG  ANGL. DEV. =  13.8 DEGREES          
REMARK 500    ARG A 318   CD  -  NE  -  CZ  ANGL. DEV. =  11.6 DEGREES          
REMARK 500    ARG A 318   NE  -  CZ  -  NH1 ANGL. DEV. =   6.6 DEGREES          
REMARK 500    ARG A 318   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.3 DEGREES          
REMARK 500    ARG A 338   CD  -  NE  -  CZ  ANGL. DEV. =   8.5 DEGREES          
REMARK 500    ARG A 338   NE  -  CZ  -  NH1 ANGL. DEV. =   6.5 DEGREES          
REMARK 500    ARG A 338   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.3 DEGREES          
REMARK 500    ARG A 342   CD  -  NE  -  CZ  ANGL. DEV. =  10.4 DEGREES          
REMARK 500    ARG A 342   NE  -  CZ  -  NH1 ANGL. DEV. =   6.8 DEGREES          
REMARK 500    ARG A 342   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.8 DEGREES          
REMARK 500    ARG A 384   CD  -  NE  -  CZ  ANGL. DEV. =   9.8 DEGREES          
REMARK 500    ARG A 384   NE  -  CZ  -  NH1 ANGL. DEV. =  -7.1 DEGREES          
REMARK 500    ARG A 384   NE  -  CZ  -  NH2 ANGL. DEV. =   7.0 DEGREES          
REMARK 500    ARG A 487   CD  -  NE  -  CZ  ANGL. DEV. =   9.4 DEGREES          
REMARK 500    ARG A 487   NE  -  CZ  -  NH1 ANGL. DEV. =   5.9 DEGREES          
REMARK 500    ARG A 487   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.7 DEGREES          
REMARK 500    ASN B  18   CB  -  CA  -  C   ANGL. DEV. = -12.5 DEGREES          
REMARK 500    ARG B  34   CD  -  NE  -  CZ  ANGL. DEV. =  11.7 DEGREES          
REMARK 500    ARG B  34   NE  -  CZ  -  NH1 ANGL. DEV. =  -7.4 DEGREES          
REMARK 500    ARG B  34   NE  -  CZ  -  NH2 ANGL. DEV. =   7.4 DEGREES          
REMARK 500    GLU B  42   OE1 -  CD  -  OE2 ANGL. DEV. = -19.4 DEGREES          
REMARK 500    GLU B  42   CG  -  CD  -  OE2 ANGL. DEV. =  13.0 DEGREES          
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS      89 ANGLE DEVIATIONS.                             
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ASN A  18     -154.82    -76.91                                   
REMARK 500    SER A  41       16.51   -140.38                                   
REMARK 500    LYS A  69        9.25    -62.13                                   
REMARK 500    SER A 100        2.57    -66.58                                   
REMARK 500    CYS A 102      162.02    -38.21                                   
REMARK 500    ARG A 146      -72.88    -41.59                                   
REMARK 500    ASN A 175       19.87     49.15                                   
REMARK 500    GLN A 274      -62.73    -26.08                                   
REMARK 500    LEU A 294       58.56   -116.47                                   
REMARK 500    ALA A 297      -20.72     79.19                                   
REMARK 500    LYS A 340       31.94   -147.08                                   
REMARK 500    MET A 381        8.15    -65.04                                   
REMARK 500    SER A 388     -166.92   -101.23                                   
REMARK 500    SER A 416     -101.04   -132.04                                   
REMARK 500    MET A 442      174.66    167.36                                   
REMARK 500    CYS A 447        9.64    -68.00                                   
REMARK 500    ASN A 473       16.58   -152.06                                   
REMARK 500    PRO A 493       26.98    -77.22                                   
REMARK 500    ALA A 494      128.58    -27.19                                   
REMARK 500    ASN B  18     -157.48    -73.93                                   
REMARK 500    SER B  41       15.70   -140.01                                   
REMARK 500    LYS B  69        9.60    -62.82                                   
REMARK 500    SER B 100        2.86    -66.48                                   
REMARK 500    CYS B 102      162.43    -37.99                                   
REMARK 500    ARG B 146      -72.91    -40.76                                   
REMARK 500    ASN B 175       19.97     50.02                                   
REMARK 500    GLU B 215       32.54   -143.61                                   
REMARK 500    GLU B 217      107.93    -51.56                                   
REMARK 500    LEU B 263       21.07    -75.05                                   
REMARK 500    GLN B 274      -63.04    -25.41                                   
REMARK 500    LEU B 294       58.90   -115.97                                   
REMARK 500    ALA B 297      -22.27     79.47                                   
REMARK 500    SER B 298      159.59    -49.01                                   
REMARK 500    LYS B 340       31.98   -146.79                                   
REMARK 500    MET B 381        7.11    -66.14                                   
REMARK 500    SER B 388     -168.28   -101.50                                   
REMARK 500    SER B 416     -101.25   -132.41                                   
REMARK 500    MET B 442      175.32    167.58                                   
REMARK 500    CYS B 447       10.26    -68.44                                   
REMARK 500    ASN B 473       16.09   -152.48                                   
REMARK 500    PRO B 493       27.78    -77.01                                   
REMARK 500    ALA B 494      127.24    -28.48                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH F 391        DISTANCE = 10.60 ANGSTROMS                       
REMARK 525    HOH D  26        DISTANCE = 10.42 ANGSTROMS                       
REMARK 525    HOH E 534        DISTANCE =  5.75 ANGSTROMS                       
REMARK 525    HOH F 484        DISTANCE =  6.26 ANGSTROMS                       
REMARK 525    HOH D  29        DISTANCE =  5.16 ANGSTROMS                       
REMARK 525    HOH B 749        DISTANCE =  7.15 ANGSTROMS                       
REMARK 525    HOH A 756        DISTANCE =  8.77 ANGSTROMS                       
REMARK 525    HOH A 757        DISTANCE = 11.37 ANGSTROMS                       
REMARK 525    HOH B 759        DISTANCE =  6.23 ANGSTROMS                       
REMARK 525    HOH A 762        DISTANCE =  5.92 ANGSTROMS                       
REMARK 525    HOH B 763        DISTANCE =  6.87 ANGSTROMS                       
REMARK 525    HOH A 763        DISTANCE =  6.49 ANGSTROMS                       
REMARK 525    HOH A 764        DISTANCE =  8.28 ANGSTROMS                       
REMARK 525    HOH A 767        DISTANCE =  6.22 ANGSTROMS                       
REMARK 525    HOH A 768        DISTANCE =  6.66 ANGSTROMS                       
REMARK 525    HOH A 769        DISTANCE =  5.33 ANGSTROMS                       
REMARK 525    HOH B 771        DISTANCE =  8.86 ANGSTROMS                       
REMARK 525    HOH B 772        DISTANCE =  7.89 ANGSTROMS                       
REMARK 525    HOH B 773        DISTANCE =  6.96 ANGSTROMS                       
REMARK 525    HOH B 774        DISTANCE =  5.32 ANGSTROMS                       
REMARK 525    HOH A 777        DISTANCE =  6.09 ANGSTROMS                       
REMARK 525    HOH B 778        DISTANCE =  5.75 ANGSTROMS                       
REMARK 525    HOH A 778        DISTANCE = 11.21 ANGSTROMS                       
REMARK 525    HOH A 779        DISTANCE = 10.10 ANGSTROMS                       
REMARK 525    HOH B 782        DISTANCE =  8.35 ANGSTROMS                       
REMARK 525    HOH A 782        DISTANCE =  6.92 ANGSTROMS                       
REMARK 525    HOH B 783        DISTANCE =  7.08 ANGSTROMS                       
REMARK 525    HOH B 786        DISTANCE =  8.40 ANGSTROMS                       
REMARK 525    HOH A 788        DISTANCE =  6.73 ANGSTROMS                       
REMARK 525    HOH A 790        DISTANCE = 11.16 ANGSTROMS                       
REMARK 525    HOH A 791        DISTANCE =  7.31 ANGSTROMS                       
REMARK 525    HOH B 792        DISTANCE =  7.93 ANGSTROMS                       
REMARK 525    HOH A 806        DISTANCE =  8.63 ANGSTROMS                       
REMARK 525    HOH A 807        DISTANCE =  8.88 ANGSTROMS                       
REMARK 525    HOH A 808        DISTANCE =  6.56 ANGSTROMS                       
REMARK 525    HOH B 814        DISTANCE =  9.56 ANGSTROMS                       
REMARK 525    HOH B 817        DISTANCE =  6.24 ANGSTROMS                       
REMARK 525    HOH A 822        DISTANCE =  8.04 ANGSTROMS                       
REMARK 525    HOH A 837        DISTANCE =  5.29 ANGSTROMS                       
REMARK 525    HOH A 842        DISTANCE = 12.20 ANGSTROMS                       
REMARK 525    HOH A 847        DISTANCE =  6.61 ANGSTROMS                       
REMARK 525    HOH B 850        DISTANCE =  7.00 ANGSTROMS                       
REMARK 525    HOH A 850        DISTANCE = 10.42 ANGSTROMS                       
REMARK 525    HOH A 851        DISTANCE =  6.32 ANGSTROMS                       
REMARK 525    HOH A 855        DISTANCE =  8.55 ANGSTROMS                       
REMARK 525    HOH A 858        DISTANCE =  5.11 ANGSTROMS                       
REMARK 525    HOH A 861        DISTANCE =  7.28 ANGSTROMS                       
REMARK 525    HOH A 864        DISTANCE =  5.71 ANGSTROMS                       
REMARK 525    HOH A 865        DISTANCE =  7.51 ANGSTROMS                       
REMARK 525    HOH A 866        DISTANCE =  7.20 ANGSTROMS                       
REMARK 525    HOH B 867        DISTANCE = 11.24 ANGSTROMS                       
REMARK 525    HOH A 867        DISTANCE =  7.90 ANGSTROMS                       
REMARK 525    HOH A 868        DISTANCE =  8.65 ANGSTROMS                       
REMARK 525    HOH B 877        DISTANCE =  6.86 ANGSTROMS                       
REMARK 525    HOH B 878        DISTANCE =  8.08 ANGSTROMS                       
REMARK 525    HOH A 879        DISTANCE =  6.01 ANGSTROMS                       
REMARK 525    HOH A 880        DISTANCE =  8.35 ANGSTROMS                       
REMARK 525    HOH B 881        DISTANCE =  6.06 ANGSTROMS                       
REMARK 525    HOH B 894        DISTANCE =  6.54 ANGSTROMS                       
REMARK 525    HOH A 900        DISTANCE =  6.04 ANGSTROMS                       
REMARK 525    HOH A 903        DISTANCE =  5.49 ANGSTROMS                       
REMARK 525    HOH B 905        DISTANCE =  7.55 ANGSTROMS                       
REMARK 525    HOH A 905        DISTANCE =  5.13 ANGSTROMS                       
REMARK 525    HOH B 906        DISTANCE =  6.69 ANGSTROMS                       
REMARK 525    HOH B 907        DISTANCE =  9.50 ANGSTROMS                       
REMARK 525    HOH A 907        DISTANCE =  8.47 ANGSTROMS                       
REMARK 525    HOH A 908        DISTANCE =  7.46 ANGSTROMS                       
REMARK 525    HOH A 910        DISTANCE =  7.32 ANGSTROMS                       
REMARK 525    HOH A 911        DISTANCE =  7.54 ANGSTROMS                       
REMARK 525    HOH A 916        DISTANCE =  6.42 ANGSTROMS                       
REMARK 525    HOH A 917        DISTANCE =  8.93 ANGSTROMS                       
REMARK 525    HOH A 925        DISTANCE =  8.12 ANGSTROMS                       
REMARK 525    HOH A 932        DISTANCE =  5.07 ANGSTROMS                       
REMARK 525    HOH A 938        DISTANCE =  9.23 ANGSTROMS                       
REMARK 525    HOH A 942        DISTANCE =  5.32 ANGSTROMS                       
REMARK 525    HOH A 944        DISTANCE =  9.53 ANGSTROMS                       
REMARK 525    HOH A 948        DISTANCE =  8.25 ANGSTROMS                       
REMARK 525    HOH A 956        DISTANCE =  8.42 ANGSTROMS                       
REMARK 525    HOH A 957        DISTANCE =  7.23 ANGSTROMS                       
REMARK 525    HOH A 958        DISTANCE = 10.69 ANGSTROMS                       
REMARK 525    HOH A 959        DISTANCE = 10.12 ANGSTROMS                       
REMARK 525    HOH A 964        DISTANCE =  9.77 ANGSTROMS                       
REMARK 525    HOH A 967        DISTANCE =  7.10 ANGSTROMS                       
REMARK 525    HOH A 972        DISTANCE =  5.49 ANGSTROMS                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620  (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;              
REMARK 620  SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                            
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 701  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ACT A 601   OXT                                                    
REMARK 620 2 SER A 380   OG   87.3                                              
REMARK 620 3 ACT A 601   O    47.7 115.6                                        
REMARK 620 4 HOH A 915   O   106.8  81.7  74.0                                  
REMARK 620 5 SER A 378   OG  103.0 107.0 123.9 149.3                            
REMARK 620 6 THR A 445   OG1 115.2 148.7  72.5  71.5  89.4                      
REMARK 620 7 HOH A 702   O   156.6  69.5 140.2  67.6  87.5  85.3                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 702  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ACT B 602   OXT                                                    
REMARK 620 2 HOH B 806   O    81.8                                              
REMARK 620 3 SER B 380   OG   87.2  92.2                                        
REMARK 620 4 SER B 378   OG   82.4 149.1 113.3                                  
REMARK 620 5 THR B 445   OG1  79.8  67.7 157.3  83.5                            
REMARK 620 6 HOH B 703   O   167.8  87.6  99.4 104.0  90.6                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 601                 
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT B 602                 
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 701                  
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 702                  
DBREF  2I91 A    1   538  UNP    P42700   RO60_XENLA       1    538             
DBREF  2I91 B    1   538  UNP    P42700   RO60_XENLA       1    538             
DBREF  2I91 C    1     8  PDB    2I91     2I91             1      8             
DBREF  2I91 D    1    15  PDB    2I91     2I91             1     15             
DBREF  2I91 E    1     8  PDB    2I91     2I91             1      8             
DBREF  2I91 F    1    15  PDB    2I91     2I91             1     15             
SEQRES   1 C    8    G   C   C   U   A   C   C   C                              
SEQRES   1 D   15    C   G   G   U   A   G   G   C   U   U   U   U   C          
SEQRES   2 D   15    A   A                                                      
SEQRES   1 E    8    G   C   C   U   A   C   C   C                              
SEQRES   1 F   15    C   G   G   U   A   G   G   C   U   U   U   U   C          
SEQRES   2 F   15    A   A                                                      
SEQRES   1 A  538  MET GLU ALA THR MET ASP GLN THR GLN PRO LEU ASN GLU          
SEQRES   2 A  538  LYS GLN VAL PRO ASN SER GLU GLY CYS TYR VAL TRP GLN          
SEQRES   3 A  538  VAL SER ASP MET ASN ARG LEU ARG ARG PHE LEU CYS PHE          
SEQRES   4 A  538  GLY SER GLU GLY GLY THR TYR TYR ILE GLU GLU LYS LYS          
SEQRES   5 A  538  LEU GLY GLN GLU ASN ALA GLU ALA LEU LEU ARG LEU ILE          
SEQRES   6 A  538  GLU ASP GLY LYS GLY CYS GLU VAL VAL GLN GLU ILE LYS          
SEQRES   7 A  538  THR PHE SER GLN GLU GLY ARG ALA ALA LYS GLN GLU PRO          
SEQRES   8 A  538  THR LEU PHE ALA LEU ALA VAL CYS SER GLN CYS SER ASP          
SEQRES   9 A  538  ILE LYS THR LYS GLN ALA ALA PHE ARG ALA VAL PRO GLU          
SEQRES  10 A  538  VAL CYS ARG ILE PRO THR HIS LEU PHE THR PHE ILE GLN          
SEQRES  11 A  538  PHE LYS LYS ASP LEU LYS GLU GLY MET LYS CYS GLY MET          
SEQRES  12 A  538  TRP GLY ARG ALA LEU ARG LYS ALA VAL SER ASP TRP TYR          
SEQRES  13 A  538  ASN THR LYS ASP ALA LEU ASN LEU ALA MET ALA VAL THR          
SEQRES  14 A  538  LYS TYR LYS GLN ARG ASN GLY TRP SER HIS LYS ASP LEU          
SEQRES  15 A  538  LEU ARG LEU SER HIS ILE LYS PRO ALA ASN GLU GLY LEU          
SEQRES  16 A  538  THR MET VAL ALA LYS TYR VAL SER LYS GLY TRP LYS GLU          
SEQRES  17 A  538  VAL GLN GLU ALA TYR LYS GLU LYS GLU LEU SER PRO GLU          
SEQRES  18 A  538  THR GLU LYS VAL LEU LYS TYR LEU GLU ALA THR GLU ARG          
SEQRES  19 A  538  VAL LYS ARG THR LYS ASP GLU LEU GLU ILE ILE HIS LEU          
SEQRES  20 A  538  ILE ASP GLU TYR ARG LEU VAL ARG GLU HIS LEU LEU THR          
SEQRES  21 A  538  ILE HIS LEU LYS SER LYS GLU ILE TRP LYS SER LEU LEU          
SEQRES  22 A  538  GLN ASP MET PRO LEU THR ALA LEU LEU ARG ASN LEU GLY          
SEQRES  23 A  538  LYS MET THR ALA ASP SER VAL LEU ALA PRO ALA SER SER          
SEQRES  24 A  538  GLU VAL SER SER VAL CYS GLU ARG LEU THR ASN GLU LYS          
SEQRES  25 A  538  LEU LEU LYS LYS ALA ARG ILE HIS PRO PHE HIS ILE LEU          
SEQRES  26 A  538  VAL ALA LEU GLU THR TYR LYS LYS GLY HIS GLY ASN ARG          
SEQRES  27 A  538  GLY LYS LEU ARG TRP ILE PRO ASP THR SER ILE VAL GLU          
SEQRES  28 A  538  ALA LEU ASP ASN ALA PHE TYR LYS SER PHE LYS LEU VAL          
SEQRES  29 A  538  GLU PRO THR GLY LYS ARG PHE LEU LEU ALA ILE ASP VAL          
SEQRES  30 A  538  SER ALA SER MET ASN GLN ARG VAL LEU GLY SER ILE LEU          
SEQRES  31 A  538  ASN ALA SER VAL VAL ALA ALA ALA MET CYS MET LEU VAL          
SEQRES  32 A  538  ALA ARG THR GLU LYS ASP SER HIS MET VAL ALA PHE SER          
SEQRES  33 A  538  ASP GLU MET LEU PRO CYS PRO ILE THR VAL ASN MET LEU          
SEQRES  34 A  538  LEU HIS GLU VAL VAL GLU LYS MET SER ASP ILE THR MET          
SEQRES  35 A  538  GLY SER THR ASP CYS ALA LEU PRO MET LEU TRP ALA GLN          
SEQRES  36 A  538  LYS THR ASN THR ALA ALA ASP ILE PHE ILE VAL PHE THR          
SEQRES  37 A  538  ASP CYS GLU THR ASN VAL GLU ASP VAL HIS PRO ALA THR          
SEQRES  38 A  538  ALA LEU LYS GLN TYR ARG GLU LYS MET GLY ILE PRO ALA          
SEQRES  39 A  538  LYS LEU ILE VAL CYS ALA MET THR SER ASN GLY PHE SER          
SEQRES  40 A  538  ILE ALA ASP PRO ASP ASP ARG GLY MET LEU ASP ILE CYS          
SEQRES  41 A  538  GLY PHE ASP SER GLY ALA LEU ASP VAL ILE ARG ASN PHE          
SEQRES  42 A  538  THR LEU ASP LEU ILE                                          
SEQRES   1 B  538  MET GLU ALA THR MET ASP GLN THR GLN PRO LEU ASN GLU          
SEQRES   2 B  538  LYS GLN VAL PRO ASN SER GLU GLY CYS TYR VAL TRP GLN          
SEQRES   3 B  538  VAL SER ASP MET ASN ARG LEU ARG ARG PHE LEU CYS PHE          
SEQRES   4 B  538  GLY SER GLU GLY GLY THR TYR TYR ILE GLU GLU LYS LYS          
SEQRES   5 B  538  LEU GLY GLN GLU ASN ALA GLU ALA LEU LEU ARG LEU ILE          
SEQRES   6 B  538  GLU ASP GLY LYS GLY CYS GLU VAL VAL GLN GLU ILE LYS          
SEQRES   7 B  538  THR PHE SER GLN GLU GLY ARG ALA ALA LYS GLN GLU PRO          
SEQRES   8 B  538  THR LEU PHE ALA LEU ALA VAL CYS SER GLN CYS SER ASP          
SEQRES   9 B  538  ILE LYS THR LYS GLN ALA ALA PHE ARG ALA VAL PRO GLU          
SEQRES  10 B  538  VAL CYS ARG ILE PRO THR HIS LEU PHE THR PHE ILE GLN          
SEQRES  11 B  538  PHE LYS LYS ASP LEU LYS GLU GLY MET LYS CYS GLY MET          
SEQRES  12 B  538  TRP GLY ARG ALA LEU ARG LYS ALA VAL SER ASP TRP TYR          
SEQRES  13 B  538  ASN THR LYS ASP ALA LEU ASN LEU ALA MET ALA VAL THR          
SEQRES  14 B  538  LYS TYR LYS GLN ARG ASN GLY TRP SER HIS LYS ASP LEU          
SEQRES  15 B  538  LEU ARG LEU SER HIS ILE LYS PRO ALA ASN GLU GLY LEU          
SEQRES  16 B  538  THR MET VAL ALA LYS TYR VAL SER LYS GLY TRP LYS GLU          
SEQRES  17 B  538  VAL GLN GLU ALA TYR LYS GLU LYS GLU LEU SER PRO GLU          
SEQRES  18 B  538  THR GLU LYS VAL LEU LYS TYR LEU GLU ALA THR GLU ARG          
SEQRES  19 B  538  VAL LYS ARG THR LYS ASP GLU LEU GLU ILE ILE HIS LEU          
SEQRES  20 B  538  ILE ASP GLU TYR ARG LEU VAL ARG GLU HIS LEU LEU THR          
SEQRES  21 B  538  ILE HIS LEU LYS SER LYS GLU ILE TRP LYS SER LEU LEU          
SEQRES  22 B  538  GLN ASP MET PRO LEU THR ALA LEU LEU ARG ASN LEU GLY          
SEQRES  23 B  538  LYS MET THR ALA ASP SER VAL LEU ALA PRO ALA SER SER          
SEQRES  24 B  538  GLU VAL SER SER VAL CYS GLU ARG LEU THR ASN GLU LYS          
SEQRES  25 B  538  LEU LEU LYS LYS ALA ARG ILE HIS PRO PHE HIS ILE LEU          
SEQRES  26 B  538  VAL ALA LEU GLU THR TYR LYS LYS GLY HIS GLY ASN ARG          
SEQRES  27 B  538  GLY LYS LEU ARG TRP ILE PRO ASP THR SER ILE VAL GLU          
SEQRES  28 B  538  ALA LEU ASP ASN ALA PHE TYR LYS SER PHE LYS LEU VAL          
SEQRES  29 B  538  GLU PRO THR GLY LYS ARG PHE LEU LEU ALA ILE ASP VAL          
SEQRES  30 B  538  SER ALA SER MET ASN GLN ARG VAL LEU GLY SER ILE LEU          
SEQRES  31 B  538  ASN ALA SER VAL VAL ALA ALA ALA MET CYS MET LEU VAL          
SEQRES  32 B  538  ALA ARG THR GLU LYS ASP SER HIS MET VAL ALA PHE SER          
SEQRES  33 B  538  ASP GLU MET LEU PRO CYS PRO ILE THR VAL ASN MET LEU          
SEQRES  34 B  538  LEU HIS GLU VAL VAL GLU LYS MET SER ASP ILE THR MET          
SEQRES  35 B  538  GLY SER THR ASP CYS ALA LEU PRO MET LEU TRP ALA GLN          
SEQRES  36 B  538  LYS THR ASN THR ALA ALA ASP ILE PHE ILE VAL PHE THR          
SEQRES  37 B  538  ASP CYS GLU THR ASN VAL GLU ASP VAL HIS PRO ALA THR          
SEQRES  38 B  538  ALA LEU LYS GLN TYR ARG GLU LYS MET GLY ILE PRO ALA          
SEQRES  39 B  538  LYS LEU ILE VAL CYS ALA MET THR SER ASN GLY PHE SER          
SEQRES  40 B  538  ILE ALA ASP PRO ASP ASP ARG GLY MET LEU ASP ILE CYS          
SEQRES  41 B  538  GLY PHE ASP SER GLY ALA LEU ASP VAL ILE ARG ASN PHE          
SEQRES  42 B  538  THR LEU ASP LEU ILE                                          
HET    ACT  A 601       4                                                       
HET    ACT  B 602       4                                                       
HET     MG  A 701       1                                                       
HET     MG  B 702       1                                                       
HETNAM     ACT ACETATE ION                                                      
HETNAM      MG MAGNESIUM ION                                                    
FORMUL   7  ACT    2(C2 H3 O2 1-)                                               
FORMUL   9   MG    2(MG 2+)                                                     
FORMUL  11  HOH   *561(H2 O)                                                    
HELIX    1   1 SER A   28  GLY A   40  1                                  13    
HELIX    2   2 GLU A   49  ASP A   67  1                                  19    
HELIX    3   3 LYS A   69  GLU A   83  1                                  15    
HELIX    4   4 GLN A   89  SER A  100  1                                  12    
HELIX    5   5 ASP A  104  CYS A  119  1                                  16    
HELIX    6   6 ILE A  121  LEU A  135  1                                  15    
HELIX    7   7 GLY A  145  THR A  158  1                                  14    
HELIX    8   8 ASP A  160  TYR A  171  1                                  12    
HELIX    9   9 HIS A  179  SER A  186  1                                   8    
HELIX   10  10 ASN A  192  LYS A  204  1                                  13    
HELIX   11  11 GLY A  205  TYR A  213  1                                   9    
HELIX   12  12 SER A  219  VAL A  235  1                                  17    
HELIX   13  13 ASP A  240  ARG A  252  1                                  13    
HELIX   14  14 VAL A  254  LEU A  258  5                                   5    
HELIX   15  15 ILE A  261  LYS A  264  5                                   4    
HELIX   16  16 SER A  265  GLN A  274  1                                  10    
HELIX   17  17 PRO A  277  ASN A  284  1                                   8    
HELIX   18  18 ASN A  284  ASP A  291  1                                   8    
HELIX   19  19 SER A  298  THR A  309  1                                  12    
HELIX   20  20 ASN A  310  ALA A  317  1                                   8    
HELIX   21  21 HIS A  320  LYS A  333  1                                  14    
HELIX   22  22 ASP A  346  SER A  360  1                                  15    
HELIX   23  23 SER A  378  GLN A  383  5                                   6    
HELIX   24  24 ASN A  391  GLU A  407  1                                  17    
HELIX   25  25 LEU A  429  THR A  441  1                                  13    
HELIX   26  26 ALA A  448  THR A  457  1                                  10    
HELIX   27  27 HIS A  478  GLY A  491  1                                  14    
HELIX   28  28 GLY A  525  LEU A  535  1                                  11    
HELIX   29  29 SER B   28  GLY B   40  1                                  13    
HELIX   30  30 GLU B   49  ASP B   67  1                                  19    
HELIX   31  31 LYS B   69  GLU B   83  1                                  15    
HELIX   32  32 GLN B   89  SER B  100  1                                  12    
HELIX   33  33 ASP B  104  CYS B  119  1                                  16    
HELIX   34  34 ILE B  121  LYS B  136  1                                  16    
HELIX   35  35 GLY B  145  THR B  158  1                                  14    
HELIX   36  36 ASP B  160  TYR B  171  1                                  12    
HELIX   37  37 HIS B  179  SER B  186  1                                   8    
HELIX   38  38 ASN B  192  LYS B  204  1                                  13    
HELIX   39  39 GLY B  205  TYR B  213  1                                   9    
HELIX   40  40 SER B  219  VAL B  235  1                                  17    
HELIX   41  41 ASP B  240  ARG B  252  1                                  13    
HELIX   42  42 VAL B  254  LEU B  258  5                                   5    
HELIX   43  43 SER B  265  GLN B  274  1                                  10    
HELIX   44  44 PRO B  277  ASN B  284  1                                   8    
HELIX   45  45 ASN B  284  ASP B  291  1                                   8    
HELIX   46  46 SER B  298  THR B  309  1                                  12    
HELIX   47  47 ASN B  310  ALA B  317  1                                   8    
HELIX   48  48 HIS B  320  LYS B  333  1                                  14    
HELIX   49  49 ASP B  346  SER B  360  1                                  15    
HELIX   50  50 SER B  378  GLN B  383  5                                   6    
HELIX   51  51 ASN B  391  GLU B  407  1                                  17    
HELIX   52  52 LEU B  429  THR B  441  1                                  13    
HELIX   53  53 ALA B  448  THR B  457  1                                  10    
HELIX   54  54 HIS B  478  GLY B  491  1                                  14    
HELIX   55  55 GLY B  525  LEU B  535  1                                  11    
SHEET    1   A 3 VAL A  16  PRO A  17  0                                        
SHEET    2   A 3 TYR A  23  GLN A  26 -1  O  VAL A  24   N  VAL A  16           
SHEET    3   A 3 PHE A 506  SER A 507 -1  O  SER A 507   N  TRP A  25           
SHEET    1   B 2 GLN A 173  ARG A 174  0                                        
SHEET    2   B 2 TRP A 177  SER A 178 -1  O  TRP A 177   N  ARG A 174           
SHEET    1   C 6 MET A 419  LEU A 420  0                                        
SHEET    2   C 6 SER A 410  PHE A 415 -1  N  ALA A 414   O  LEU A 420           
SHEET    3   C 6 PHE A 371  ASP A 376  1  N  ILE A 375   O  VAL A 413           
SHEET    4   C 6 ILE A 463  THR A 468  1  O  ILE A 465   N  ALA A 374           
SHEET    5   C 6 LYS A 495  ALA A 500  1  O  ILE A 497   N  PHE A 464           
SHEET    6   C 6 MET A 516  CYS A 520  1  O  LEU A 517   N  LEU A 496           
SHEET    1   D 3 VAL B  16  PRO B  17  0                                        
SHEET    2   D 3 TYR B  23  GLN B  26 -1  O  VAL B  24   N  VAL B  16           
SHEET    3   D 3 PHE B 506  SER B 507 -1  O  SER B 507   N  TRP B  25           
SHEET    1   E 2 GLN B 173  ARG B 174  0                                        
SHEET    2   E 2 TRP B 177  SER B 178 -1  O  TRP B 177   N  ARG B 174           
SHEET    1   F 6 MET B 419  LEU B 420  0                                        
SHEET    2   F 6 SER B 410  PHE B 415 -1  N  ALA B 414   O  LEU B 420           
SHEET    3   F 6 PHE B 371  ASP B 376  1  N  ILE B 375   O  VAL B 413           
SHEET    4   F 6 ILE B 463  THR B 468  1  O  ILE B 465   N  ALA B 374           
SHEET    5   F 6 LYS B 495  ALA B 500  1  O  ILE B 497   N  PHE B 464           
SHEET    6   F 6 MET B 516  CYS B 520  1  O  LEU B 517   N  LEU B 496           
LINK         OXT ACT A 601                MG    MG A 701     1555   1555  1.92  
LINK        MG    MG A 701                 OG  SER A 380     1555   1555  2.13  
LINK        MG    MG A 701                 O   ACT A 601     1555   1555  3.11  
LINK        MG    MG A 701                 O   HOH A 915     1555   1555  2.33  
LINK        MG    MG A 701                 OG  SER A 378     1555   1555  1.97  
LINK        MG    MG A 701                 OG1 THR A 445     1555   1555  1.97  
LINK        MG    MG A 701                 O   HOH A 702     1555   1555  2.01  
LINK         OXT ACT B 602                MG    MG B 702     1555   1555  1.99  
LINK        MG    MG B 702                 O   HOH B 806     1555   1555  2.05  
LINK        MG    MG B 702                 OG  SER B 380     1555   1555  1.93  
LINK        MG    MG B 702                 OG  SER B 378     1555   1555  2.07  
LINK        MG    MG B 702                 OG1 THR B 445     1555   1555  2.12  
LINK        MG    MG B 702                 O   HOH B 703     1555   1555  1.87  
SITE     1 AC1  9 TYR A  47  SER A 378  ALA A 379  SER A 380                    
SITE     2 AC1  9 GLY A 443  SER A 444  THR A 445  ASN A 473                    
SITE     3 AC1  9  MG A 701                                                     
SITE     1 AC2 10 TYR B  47  SER B 378  ALA B 379  SER B 380                    
SITE     2 AC2 10 GLY B 443  SER B 444  THR B 445  ASN B 473                    
SITE     3 AC2 10  MG B 702  HOH B 806                                          
SITE     1 AC3  6 SER A 378  SER A 380  THR A 445  ACT A 601                    
SITE     2 AC3  6 HOH A 702  HOH A 915                                          
SITE     1 AC4  6 SER B 378  SER B 380  THR B 445  ACT B 602                    
SITE     2 AC4  6 HOH B 703  HOH B 806                                          
CRYST1   72.680  119.980   73.540  90.00  98.91  90.00 P 1 21 1      4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.013759  0.000000  0.002157        0.00000                         
SCALE2      0.000000  0.008335  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013764        0.00000