PDB Short entry for 1DDS
HEADER    OXIDO-REDUCTASE                         29-JUN-95   1DDS              
TITLE     MOLECULE: DIHYDROFOLATE REDUCTASE (E.C.1.5.1.3) COMPLEXED             
TITLE    2 WITH METHOTREXATE                                                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DIHYDROFOLATE REDUCTASE;                                   
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 EC: 1.5.1.3;                                                         
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 EXPRESSION_SYSTEM_STRAIN: B                                          
KEYWDS    OXIDO-REDUCTASE                                                       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    H.P.YENNAWAR,G.K.FARBER                                               
REVDAT   2   24-FEB-09 1DDS    1       VERSN                                    
REVDAT   1   15-OCT-95 1DDS    0                                                
JRNL        AUTH   J.DUNBAR,H.P.YENNAWAR,S.BANERJEE,J.LUO,G.K.FARBER            
JRNL        TITL   THE EFFECT OF DENATURANTS ON PROTEIN STRUCTURE.              
JRNL        REF    PROTEIN SCI.                  V.   6  1727 1997              
JRNL        REFN                   ISSN 0961-8368                               
JRNL        PMID   9260285                                                      
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.1                                           
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 51.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 10604                          
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 SET) : 0.177                           
REMARK   3   FREE R VALUE                     : 0.200                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
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) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
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            : 2503                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 69                                      
REMARK   3   SOLVENT ATOMS            : 121                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 13.04                          
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) : 0.013                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.92                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
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  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 1DDS 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        : 01-DEC-93                          
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.54                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : DIFFRACTOMETER                     
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU AFC-6R                      
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : TEXSAN                             
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 22503                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY                : 1.000                              
REMARK 200  R MERGE                    (I) : 0.07200                            
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: X-PLOR 3.1                                            
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 52.10                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.57                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61                             
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+5/6                                            
REMARK 290       6555   X-Y,X,Z+1/6                                             
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 -0.500021 -0.865988  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866063 -0.499979  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       24.62867            
REMARK 290   SMTRY1   3 -0.499979  0.865988  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866063 -0.500021  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       49.25733            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       36.94300            
REMARK 290   SMTRY1   5  0.500021  0.865988  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866063  0.499979  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       61.57167            
REMARK 290   SMTRY1   6  0.499979 -0.865988  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866063  0.500021  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       12.31433            
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: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 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     PRO A  66    CB   CG   CD                                        
REMARK 470     THR A  68    OG1  CG2                                            
REMARK 470     LYS A  76    CG   CD   CE   NZ                                   
REMARK 470     LYS A 106    CG   CD   CE   NZ                                   
REMARK 470     GLU A 129    CG   CD   OE1  OE2                                  
REMARK 470     ASP A 131    CG   OD1  OD2                                       
REMARK 470     ARG A 159    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLU B 129    CG   CD   OE1  OE2                                  
REMARK 470     ASP B 131    CG   OD1  OD2                                       
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    MET A  16      -65.58   -105.94                                   
REMARK 500    GLU A  17      -55.37   -129.99                                   
REMARK 500    THR A  68      -81.64    -68.47                                   
REMARK 500    ASP A 131       36.22    -83.16                                   
REMARK 500    ASP A 132       -6.99   -147.60                                   
REMARK 500    SER B  63      140.18   -174.32                                   
REMARK 500    SER B  64       26.94    -76.76                                   
REMARK 500    ASP B  87       72.93   -101.27                                   
REMARK 500    PRO B 130        3.29    -59.73                                   
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 A 713        DISTANCE =  7.83 ANGSTROMS                       
REMARK 525    HOH B 749        DISTANCE =  5.33 ANGSTROMS                       
REMARK 525    HOH B 758        DISTANCE =  5.48 ANGSTROMS                       
REMARK 525    HOH B 789        DISTANCE =  6.61 ANGSTROMS                       
REMARK 525    HOH A 773        DISTANCE =  5.79 ANGSTROMS                       
REMARK 525    HOH A 775        DISTANCE =  6.10 ANGSTROMS                       
REMARK 525    HOH A 783        DISTANCE =  6.71 ANGSTROMS                       
REMARK 525    HOH B 802        DISTANCE =  7.79 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                              CA B 204  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A  18   OD1                                                    
REMARK 620 2 ASN A  18   ND2  42.7                                              
REMARK 620 3 ALA B 143   O    91.4  84.8                                        
REMARK 620 N                    1     2                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 202                  
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 203                  
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 204                  
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MTX A 201                 
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MTX B 201                 
DBREF  1DDS A    1   159  UNP    P0ABQ4   DYR_ECOLI        1    159             
DBREF  1DDS B    1   159  UNP    P0ABQ4   DYR_ECOLI        1    159             
SEQRES   1 A  159  MET ILE SER LEU ILE ALA ALA LEU ALA VAL ASP ARG VAL          
SEQRES   2 A  159  ILE GLY MET GLU ASN ALA MET PRO TRP ASN LEU PRO ALA          
SEQRES   3 A  159  ASP LEU ALA TRP PHE LYS ARG ASN THR LEU ASN LYS PRO          
SEQRES   4 A  159  VAL ILE MET GLY ARG HIS THR TRP GLU SER ILE GLY ARG          
SEQRES   5 A  159  PRO LEU PRO GLY ARG LYS ASN ILE ILE LEU SER SER GLN          
SEQRES   6 A  159  PRO GLY THR ASP ASP ARG VAL THR TRP VAL LYS SER VAL          
SEQRES   7 A  159  ASP GLU ALA ILE ALA ALA CYS GLY ASP VAL PRO GLU ILE          
SEQRES   8 A  159  MET VAL ILE GLY GLY GLY ARG VAL TYR GLU GLN PHE LEU          
SEQRES   9 A  159  PRO LYS ALA GLN LYS LEU TYR LEU THR HIS ILE ASP ALA          
SEQRES  10 A  159  GLU VAL GLU GLY ASP THR HIS PHE PRO ASP TYR GLU PRO          
SEQRES  11 A  159  ASP ASP TRP GLU SER VAL PHE SER GLU PHE HIS ASP ALA          
SEQRES  12 A  159  ASP ALA GLN ASN SER HIS SER TYR CYS PHE GLU ILE LEU          
SEQRES  13 A  159  GLU ARG ARG                                                  
SEQRES   1 B  159  MET ILE SER LEU ILE ALA ALA LEU ALA VAL ASP ARG VAL          
SEQRES   2 B  159  ILE GLY MET GLU ASN ALA MET PRO TRP ASN LEU PRO ALA          
SEQRES   3 B  159  ASP LEU ALA TRP PHE LYS ARG ASN THR LEU ASN LYS PRO          
SEQRES   4 B  159  VAL ILE MET GLY ARG HIS THR TRP GLU SER ILE GLY ARG          
SEQRES   5 B  159  PRO LEU PRO GLY ARG LYS ASN ILE ILE LEU SER SER GLN          
SEQRES   6 B  159  PRO GLY THR ASP ASP ARG VAL THR TRP VAL LYS SER VAL          
SEQRES   7 B  159  ASP GLU ALA ILE ALA ALA CYS GLY ASP VAL PRO GLU ILE          
SEQRES   8 B  159  MET VAL ILE GLY GLY GLY ARG VAL TYR GLU GLN PHE LEU          
SEQRES   9 B  159  PRO LYS ALA GLN LYS LEU TYR LEU THR HIS ILE ASP ALA          
SEQRES  10 B  159  GLU VAL GLU GLY ASP THR HIS PHE PRO ASP TYR GLU PRO          
SEQRES  11 B  159  ASP ASP TRP GLU SER VAL PHE SER GLU PHE HIS ASP ALA          
SEQRES  12 B  159  ASP ALA GLN ASN SER HIS SER TYR CYS PHE GLU ILE LEU          
SEQRES  13 B  159  GLU ARG ARG                                                  
HET     CL  A 202       1                                                       
HET     CL  B 203       1                                                       
HET     CA  B 204       1                                                       
HET    MTX  A 201      33                                                       
HET    MTX  B 201      33                                                       
HETNAM      CL CHLORIDE ION                                                     
HETNAM      CA CALCIUM ION                                                      
HETNAM     MTX METHOTREXATE                                                     
FORMUL   3   CL    2(CL 1-)                                                     
FORMUL   5   CA    CA 2+                                                        
FORMUL   6  MTX    2(C20 H22 N8 O5)                                             
FORMUL   8  HOH   *121(H2 O)                                                    
HELIX    1   1 VAL A   10  ARG A   12  5                                   3    
HELIX    2   2 PRO A   25  THR A   35  1                                  11    
HELIX    3   3 ARG A   44  ILE A   50  1                                   7    
HELIX    4   4 VAL A   78  CYS A   85  1                                   8    
HELIX    5   5 GLY A   97  LYS A  106  1                                  10    
HELIX    6   6 PRO A  130  ASP A  132  5                                   3    
HELIX    7   7 VAL B   10  ARG B   12  5                                   3    
HELIX    8   8 PRO B   25  THR B   35  1                                  11    
HELIX    9   9 ARG B   44  ILE B   50  1                                   7    
HELIX   10  10 VAL B   78  CYS B   85  1                                   8    
HELIX   11  11 GLY B   97  LYS B  106  1                                  10    
SHEET    1   A 8 TRP A 133  HIS A 141  0                                        
SHEET    2   A 8 TYR A 151  ARG A 158 -1  N  GLU A 157   O  GLU A 134           
SHEET    3   A 8 LYS A 109  ILE A 115 -1  N  HIS A 114   O  CYS A 152           
SHEET    4   A 8 ILE A   2  LEU A   8  1  N  LEU A   4   O  LYS A 109           
SHEET    5   A 8 ILE A  91  GLY A  95  1  N  ILE A  91   O  SER A   3           
SHEET    6   A 8 PRO A  39  MET A  42  1  N  PRO A  39   O  MET A  92           
SHEET    7   A 8 LYS A  58  LEU A  62  1  N  LYS A  58   O  VAL A  40           
SHEET    8   A 8 THR A  73  VAL A  75  1  N  THR A  73   O  ILE A  61           
SHEET    1   B 8 TRP B 133  HIS B 141  0                                        
SHEET    2   B 8 TYR B 151  ARG B 158 -1  N  GLU B 157   O  GLU B 134           
SHEET    3   B 8 LYS B 109  ILE B 115 -1  N  HIS B 114   O  CYS B 152           
SHEET    4   B 8 ILE B   2  LEU B   8  1  N  LEU B   4   O  LYS B 109           
SHEET    5   B 8 ILE B  91  GLY B  95  1  N  ILE B  91   O  SER B   3           
SHEET    6   B 8 PRO B  39  GLY B  43  1  N  ILE B  41   O  MET B  92           
SHEET    7   B 8 LYS B  58  LEU B  62  1  N  LYS B  58   O  VAL B  40           
SHEET    8   B 8 THR B  73  VAL B  75  1  N  THR B  73   O  ILE B  61           
LINK        CA    CA B 204                 OD1 ASN A  18     1555   2665  2.32  
LINK        CA    CA B 204                 ND2 ASN A  18     1555   2665  3.30  
LINK        CA    CA B 204                 O   ALA B 143     1555   2665  2.35  
CISPEP   1 GLY A   95    GLY A   96          0        -0.43                     
CISPEP   2 GLY B   95    GLY B   96          0         1.14                     
SITE     1 AC1  3 GLY A  43  ARG A  44  HIS A  45                               
SITE     1 AC2  4 GLY B  43  ARG B  44  HIS B  45  THR B  46                    
SITE     1 AC3  3 ASN A  18  ALA B 143  ASP B 144                               
SITE     1 AC4 12 ILE A   5  ALA A   6  ASP A  27  LEU A  28                    
SITE     2 AC4 12 PHE A  31  LYS A  32  ILE A  50  ARG A  52                    
SITE     3 AC4 12 ARG A  57  ILE A  94  TYR A 100  THR A 113                    
SITE     1 AC5 12 ILE B   5  ALA B   6  ALA B   7  ASP B  27                    
SITE     2 AC5 12 LEU B  28  PHE B  31  ILE B  50  ARG B  52                    
SITE     3 AC5 12 ARG B  57  ILE B  94  TYR B 100  THR B 113                    
CRYST1   93.181   93.185   73.886  90.00  90.00 120.00 P 61         12          
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      0.010732  0.006196  0.000000        0.00000                         
SCALE2      0.000000  0.012391  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013534        0.00000