PDB Short entry for 7RSA
HEADER    HYDROLASE (PHOSPHORIC DIESTER)          10-JUN-88   7RSA              
TITLE     STRUCTURE OF PHOSPHATE-FREE RIBONUCLEASE A REFINED AT 1.26 ANGSTROMS  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RIBONUCLEASE A;                                            
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.1.27.5                                                         
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: BOS TAURUS;                                     
SOURCE   3 ORGANISM_COMMON: CATTLE;                                             
SOURCE   4 ORGANISM_TAXID: 9913;                                                
SOURCE   5 CELL_LINE: S2;                                                       
SOURCE   6 ORGAN: PANCREAS                                                      
KEYWDS    HYDROLASE (PHOSPHORIC DIESTER)                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.WLODAWER,G.L.GILLILAND                                              
REVDAT   6   13-JUL-11 7RSA    1       VERSN                                    
REVDAT   5   24-FEB-09 7RSA    1       VERSN                                    
REVDAT   4   01-APR-03 7RSA    1       JRNL                                     
REVDAT   3   15-JAN-93 7RSA    2       CONECT                                   
REVDAT   2   15-OCT-89 7RSA    1       COMPND                                   
REVDAT   1   09-OCT-88 7RSA    0                                                
JRNL        AUTH   A.WLODAWER,L.A.SVENSSON,L.SJOLIN,G.L.GILLILAND               
JRNL        TITL   STRUCTURE OF PHOSPHATE-FREE RIBONUCLEASE A REFINED AT 1.26   
JRNL        TITL 2 A.                                                           
JRNL        REF    BIOCHEMISTRY                  V.  27  2705 1988              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   3401445                                                      
JRNL        DOI    10.1021/BI00408A010                                          
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   L.A.SVENSSON,L.SJOLIN,G.L.GILLILAND,B.C.FINZEL,A.WLODAWER    
REMARK   1  TITL   MULTIPLE CONFORMATIONS OF AMINO ACID RESIDUES IN             
REMARK   1  TITL 2 RIBONUCLEASE A                                               
REMARK   1  REF    PROTEINS                      V.   1   370 1986              
REMARK   1  REFN                   ISSN 0887-3585                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   A.WLODAWER,N.BORKAKOTI,D.S.MOSS,B.HOWLIN                     
REMARK   1  TITL   COMPARISON OF TWO INDEPENDENTLY REFINED MODELS OF            
REMARK   1  TITL 2 RIBONUCLEASE A                                               
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.B      V.  42   379 1986              
REMARK   1  REFN                   ISSN 0108-7681                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   A.WLODAWER,R.BOTT,L.SJOLIN                                   
REMARK   1  TITL   THE REFINED CRYSTAL STRUCTURE OF RIBONUCLEASE A AT 2.0       
REMARK   1  TITL 2 ANGSTROMS RESOLUTION                                         
REMARK   1  REF    J.BIOL.CHEM.                  V..257  1325 1982              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.26 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PROLSQ                                               
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.26                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : NULL                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : NULL                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.150                           
REMARK   3   R VALUE            (WORKING SET) : NULL                            
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                               
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 951                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 5                                       
REMARK   3   SOLVENT ATOMS            : 188                                     
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  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.024 ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; 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  OTHER REFINEMENT REMARKS:                                           
REMARK   3  SOME WATER MOLECULES ARE CLOSER THAN 2.8 ANGSTROMS FROM             
REMARK   3  OTHER WATER MOLECULES.  THEY MAY REPRESENT ALTERNATELY              
REMARK   3  OCCUPIED SITES OR SEPARATE NETWORKS.  SEE THE PAPER CITED           
REMARK   3  ON THE *JRNL* RECORDS ABOVE FOR MORE DETAILS.                       
REMARK   3  SOME ATOMS IN RESIDUES 7 AND 31 HAVE AN OCCUPANCY LESS THAN         
REMARK   3  1.0.  THESE ATOMS WERE POORLY DEFINED IN THE ELECTRON               
REMARK   3  DENSITY AND THEIR OCCUPANCY WAS LOWERED.                            
REMARK   4                                                                      
REMARK   4 7RSA COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.25                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.17                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
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       19.20000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
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: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 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   HZ1  LYS A    98     HG1  THR A   100              1.28            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   HA   LYS A     1     HH   TYR A    92     2655     1.56            
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    SER A  23   CB    SER A  23   OG     -0.079                       
REMARK 500    GLU A  86   CD    GLU A  86   OE1    -0.094                       
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    LYS A   1   CA  -  CB  -  CG  ANGL. DEV. =  17.0 DEGREES          
REMARK 500    GLU A   9   OE1 -  CD  -  OE2 ANGL. DEV. =  10.2 DEGREES          
REMARK 500    ASP A  14   CB  -  CG  -  OD2 ANGL. DEV. =  -6.7 DEGREES          
REMARK 500    ARG A  39   NE  -  CZ  -  NH1 ANGL. DEV. =   3.9 DEGREES          
REMARK 500    ASP A  83   CB  -  CG  -  OD1 ANGL. DEV. =   8.3 DEGREES          
REMARK 500    ASP A  83   CB  -  CG  -  OD2 ANGL. DEV. =  -8.3 DEGREES          
REMARK 500    ARG A  85   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500    GLU A  86   OE1 -  CD  -  OE2 ANGL. DEV. =   8.8 DEGREES          
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    GLN A  60     -140.83   -105.38                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 700                                                                      
REMARK 700 SHEET                                                                
REMARK 700 THIS STRUCTURE CONTAINS TWO SHEETS.  SHEET S1 COMPRISES              
REMARK 700 THREE STRANDS.  IN THE SECOND STRAND OF SHEET S1, RESIDUES           
REMARK 700 88 AND 89 *BULGE OUT*.  IN ORDER TO REPRESENT THIS BREAK             
REMARK 700 IN STRAND 2, TWO SHEETS (S1A AND S1B) ARE DEFINED BELOW.             
REMARK 700 STRANDS 1 AND 3 OF *SHEETS* S1A AND S1B ARE, THEREFORE,              
REMARK 700 IDENTICAL AND STRAND 2 DIFFERS.  SHEET S2 COMPRISES FOUR             
REMARK 700 STRANDS.  RESIDUE 120 DOES NOT PROPERLY BELONG IN STRAND             
REMARK 700 4 OF SHEET S2.  IN ORDER TO REPRESENT THIS BREAK IN STRAND           
REMARK 700 4, TWO SHEETS (S2A AND S2B) ARE DEFINED BELOW.  STRANDS              
REMARK 700 1,2,3 OF *SHEETS* S2A AND S2B ARE, THEREFORE, IDENTICAL              
REMARK 700 AND STRAND 4 DIFFERS.                                                
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: ACT                                                 
REMARK 800 EVIDENCE_CODE: AUTHOR                                                
REMARK 800 SITE_DESCRIPTION: ACTIVE SITE OF THE ENZYME                          
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TBU A 125                 
DBREF  7RSA A    1   124  UNP    P00656   RNP_BOVIN       27    150             
SEQRES   1 A  124  LYS GLU THR ALA ALA ALA LYS PHE GLU ARG GLN HIS MET          
SEQRES   2 A  124  ASP SER SER THR SER ALA ALA SER SER SER ASN TYR CYS          
SEQRES   3 A  124  ASN GLN MET MET LYS SER ARG ASN LEU THR LYS ASP ARG          
SEQRES   4 A  124  CYS LYS PRO VAL ASN THR PHE VAL HIS GLU SER LEU ALA          
SEQRES   5 A  124  ASP VAL GLN ALA VAL CYS SER GLN LYS ASN VAL ALA CYS          
SEQRES   6 A  124  LYS ASN GLY GLN THR ASN CYS TYR GLN SER TYR SER THR          
SEQRES   7 A  124  MET SER ILE THR ASP CYS ARG GLU THR GLY SER SER LYS          
SEQRES   8 A  124  TYR PRO ASN CYS ALA TYR LYS THR THR GLN ALA ASN LYS          
SEQRES   9 A  124  HIS ILE ILE VAL ALA CYS GLU GLY ASN PRO TYR VAL PRO          
SEQRES  10 A  124  VAL HIS PHE ASP ALA SER VAL                                  
HET    TBU  A 125      15                                                       
HETNAM     TBU TERTIARY-BUTYL ALCOHOL                                           
HETSYN     TBU 2-METHYL-2-PROPANOL                                              
FORMUL   2  TBU    C4 H10 O                                                     
FORMUL   3  DOD   *188(D2 O)                                                    
HELIX    1  H1 THR A    3  MET A   13  1                                  11    
HELIX    2  H2 ASN A   24  ASN A   34  1RESIDUE 34 IN 3/10 CONFIG         11    
HELIX    3  H3 SER A   50  GLN A   60  1RESIDUES 56-60 IN 3/10 CONFIG     11    
SHEET    1 S1A 3 LYS A  41  HIS A  48  0                                        
SHEET    2 S1A 3 MET A  79  THR A  87 -1  N  GLU A  86   O  PRO A  42           
SHEET    3 S1A 3 ASN A  94  LYS A 104 -1  O  LYS A 104   N  MET A  79           
SHEET    1 S1B 3 LYS A  41  HIS A  48  0                                        
SHEET    2 S1B 3 SER A  90  LYS A  91 -1                                        
SHEET    3 S1B 3 ASN A  94  LYS A 104 -1  O  ASN A  94   N  LYS A  91           
SHEET    1 S2A 4 LYS A  61  ALA A  64  0                                        
SHEET    2 S2A 4 ASN A  71  SER A  75 -1  O  CYS A  72   N  VAL A  63           
SHEET    3 S2A 4 HIS A 105  ASN A 113 -1  O  VAL A 108   N  TYR A  73           
SHEET    4 S2A 4 PRO A 114  HIS A 119 -1  O  VAL A 116   N  GLU A 111           
SHEET    1 S2B 4 LYS A  61  ALA A  64  0                                        
SHEET    2 S2B 4 ASN A  71  SER A  75 -1  O  CYS A  72   N  VAL A  63           
SHEET    3 S2B 4 HIS A 105  ASN A 113 -1  O  VAL A 108   N  TYR A  73           
SHEET    4 S2B 4 ASP A 121  VAL A 124 -1  N  VAL A 124   O  HIS A 105           
SSBOND   1 CYS A   26    CYS A   84                          1555   1555  2.00  
SSBOND   2 CYS A   40    CYS A   95                          1555   1555  2.01  
SSBOND   3 CYS A   58    CYS A  110                          1555   1555  1.98  
SSBOND   4 CYS A   65    CYS A   72                          1555   1555  1.97  
CISPEP   1 TYR A   92    PRO A   93          0         3.13                     
CISPEP   2 ASN A  113    PRO A  114          0         0.70                     
SITE     1 ACT  9 HIS A  12  LYS A  41  VAL A  43  ASN A  44                    
SITE     2 ACT  9 THR A  45  HIS A 119  PHE A 120  ASP A 121                    
SITE     3 ACT  9 SER A 123                                                     
SITE     1 AC1  3 SER A  22  GLN A 101  DOD A 336                               
CRYST1   30.180   38.400   53.320  90.00 105.85  90.00 P 1 21 1      2          
ORIGX1      1.000000  0.000000  0.283914        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.039523        0.00000                         
SCALE1      0.033135  0.000000  0.009407        0.00000                         
SCALE2      0.000000  0.026042  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.019496        0.00000