HEADER    ENDOCYTOSIS/EXOCYTOSIS                  06-MAR-00   1EK0              
TITLE     GPPNHP-BOUND YPT51 AT 1.48 A RESOLUTION                               
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEIN (GTP-BINDING PROTEIN YPT51);                       
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: GTPASE DOMAIN;                                             
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SACCHAROMYCES CEREVISIAE;                       
SOURCE   3 ORGANISM_COMMON: BAKER'S YEAST;                                      
SOURCE   4 ORGANISM_TAXID: 4932;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21/DE3;                                  
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET19                                     
KEYWDS    G PROTEIN, VESICULAR TRAFFIC, GTP HYDROLYSIS, YPT/RAB PROTEIN,        
KEYWDS   2 ENDOCYTOSIS, HYDROLASE, ENDOCYTOSIS-EXOCYTOSIS COMPLEX               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    H.ESTERS,A.J.SCHEIDIG                                                 
REVDAT   6   09-OCT-24 1EK0    1       REMARK                                   
REVDAT   5   09-AUG-23 1EK0    1       REMARK SEQADV LINK                       
REVDAT   4   04-OCT-17 1EK0    1       REMARK                                   
REVDAT   3   24-FEB-09 1EK0    1       VERSN                                    
REVDAT   2   01-APR-03 1EK0    1       JRNL                                     
REVDAT   1   17-APR-00 1EK0    0                                                
JRNL        AUTH   H.ESTERS,K.ALEXANDROV,A.T.CONSTANTINESCU,R.S.GOODY,          
JRNL        AUTH 2 A.J.SCHEIDIG                                                 
JRNL        TITL   HIGH-RESOLUTION CRYSTAL STRUCTURE OF S. CEREVISIAE           
JRNL        TITL 2 YPT51(DELTAC15)-GPPNHP, A SMALL GTP-BINDING PROTEIN INVOLVED 
JRNL        TITL 3 IN REGULATION OF ENDOCYTOSIS.                                
JRNL        REF    J.MOL.BIOL.                   V. 298   111 2000              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   10756108                                                     
JRNL        DOI    10.1006/JMBI.2000.3645                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.48 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : SHELXL-97                                            
REMARK   3   AUTHORS     : G.M.SHELDRICK                                        
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.48                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 31.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 94.2                           
REMARK   3   CROSS-VALIDATION METHOD           : FREE R                         
REMARK   3   FREE R VALUE TEST SET SELECTION   : RANDOM                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (NO CUTOFF).                         
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : 0.179                  
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : 0.178                  
REMARK   3   FREE R VALUE                  (NO CUTOFF) : 0.228                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.000                  
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : 166                    
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : 33452                  
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F).                     
REMARK   3   R VALUE   (WORKING + TEST SET, F>4SIG(F)) : 0.172                  
REMARK   3   R VALUE          (WORKING SET, F>4SIG(F)) : 0.171                  
REMARK   3   FREE R VALUE                  (F>4SIG(F)) : 0.221                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.000                  
REMARK   3   FREE R VALUE TEST SET COUNT   (F>4SIG(F)) : 152                    
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (F>4SIG(F)) : 2865                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS      : 1336                                          
REMARK   3   NUCLEIC ACID ATOMS : 0                                             
REMARK   3   HETEROGEN ATOMS    : 62                                            
REMARK   3   SOLVENT ATOMS      : 209                                           
REMARK   3                                                                      
REMARK   3  MODEL REFINEMENT.                                                   
REMARK   3   OCCUPANCY SUM OF NON-HYDROGEN ATOMS      : 1609.0                  
REMARK   3   OCCUPANCY SUM OF HYDROGEN ATOMS          : 0.00                    
REMARK   3   NUMBER OF DISCRETELY DISORDERED RESIDUES : 1                       
REMARK   3   NUMBER OF LEAST-SQUARES PARAMETERS       : 660                     
REMARK   3   NUMBER OF RESTRAINTS                     : 610                     
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM RESTRAINT TARGET VALUES.                        
REMARK   3   BOND LENGTHS                         (A) : 0.010                   
REMARK   3   ANGLE DISTANCES                      (A) : 0.040                   
REMARK   3   SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000                   
REMARK   3   DISTANCES FROM RESTRAINT PLANES      (A) : 0.027                   
REMARK   3   ZERO CHIRAL VOLUMES               (A**3) : 0.040                   
REMARK   3   NON-ZERO CHIRAL VOLUMES           (A**3) : 0.060                   
REMARK   3   ANTI-BUMPING DISTANCE RESTRAINTS     (A) : 0.010                   
REMARK   3   RIGID-BOND ADP COMPONENTS         (A**2) : 0.000                   
REMARK   3   SIMILAR ADP COMPONENTS            (A**2) : 0.060                   
REMARK   3   APPROXIMATELY ISOTROPIC ADPS      (A**2) : 0.000                   
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED: NULL                                                  
REMARK   3                                                                      
REMARK   3  STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER                      
REMARK   3   SPECIAL CASE: NULL                                                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1EK0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-MAR-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000010658.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-JUN-99                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : EMBL/DESY, HAMBURG                 
REMARK 200  BEAMLINE                       : X11                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.903                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : MIRROR                             
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MAR                                
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 33345                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.480                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 93.9                               
REMARK 200  DATA REDUNDANCY                : 4.400                              
REMARK 200  R MERGE                    (I) : 0.02600                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 27.5500                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.47                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.55                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 90.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.21400                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 5.220                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: 5P21                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 54.38                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.00                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 10% PEG-3350, 100 MM HEPES, PH 7.5, 20   
REMARK 280  MM NICL2 , VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K          
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       30.40700            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       60.81400            
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       45.61050            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       76.01750            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       15.20350            
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: 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    TYR A  77   CA  -  CB  -  CG  ANGL. DEV. =  12.8 DEGREES          
REMARK 500    ARG A  78   NE  -  CZ  -  NH1 ANGL. DEV. =   3.9 DEGREES          
REMARK 500    ARG A  99   NE  -  CZ  -  NH2 ANGL. DEV. =   4.0 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    ASN A  52     -117.36     55.51                                   
REMARK 500    GLU A 127     -130.65   -132.13                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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 601  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 SER A  21   OG                                                     
REMARK 620 2 THR A  39   OG1  83.6                                              
REMARK 620 3 GNP A 501   O2B  92.4 175.1                                        
REMARK 620 4 GNP A 501   O1G 171.8  88.2  95.9                                  
REMARK 620 5 HOH A1001   O    89.3  87.8  89.3  90.5                            
REMARK 620 6 HOH A1002   O    87.9  91.7  91.0  92.1 177.3                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NI A 602  NI                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  54   NE2                                                    
REMARK 620 2 GDP A 502   N7   91.1                                              
REMARK 620 3 HOH A1016   O    87.5  93.8                                        
REMARK 620 4 HOH A1154   O    94.6  89.6 175.9                                  
REMARK 620 5 HOH A1155   O    89.1 171.5  94.7  81.9                            
REMARK 620 6 HOH A1156   O   178.2  89.4  94.2  83.7  90.2                      
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 MG A 601                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI A 602                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GNP A 501                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GDP A 502                 
DBREF  1EK0 A    5   174  UNP    P36017   YPT51_YEAST      5    174             
SEQADV 1EK0 MHO A   75  UNP  P36017    MET    75 MODIFIED RESIDUE               
SEQADV 1EK0 MHO A  124  UNP  P36017    MET   124 MODIFIED RESIDUE               
SEQRES   1 A  170  VAL THR SER ILE LYS LEU VAL LEU LEU GLY GLU ALA ALA          
SEQRES   2 A  170  VAL GLY LYS SER SER ILE VAL LEU ARG PHE VAL SER ASN          
SEQRES   3 A  170  ASP PHE ALA GLU ASN LYS GLU PRO THR ILE GLY ALA ALA          
SEQRES   4 A  170  PHE LEU THR GLN ARG VAL THR ILE ASN GLU HIS THR VAL          
SEQRES   5 A  170  LYS PHE GLU ILE TRP ASP THR ALA GLY GLN GLU ARG PHE          
SEQRES   6 A  170  ALA SER LEU ALA PRO MHO TYR TYR ARG ASN ALA GLN ALA          
SEQRES   7 A  170  ALA LEU VAL VAL TYR ASP VAL THR LYS PRO GLN SER PHE          
SEQRES   8 A  170  ILE LYS ALA ARG HIS TRP VAL LYS GLU LEU HIS GLU GLN          
SEQRES   9 A  170  ALA SER LYS ASP ILE ILE ILE ALA LEU VAL GLY ASN LYS          
SEQRES  10 A  170  ILE ASP MHO LEU GLN GLU GLY GLY GLU ARG LYS VAL ALA          
SEQRES  11 A  170  ARG GLU GLU GLY GLU LYS LEU ALA GLU GLU LYS GLY LEU          
SEQRES  12 A  170  LEU PHE PHE GLU THR SER ALA LYS THR GLY GLU ASN VAL          
SEQRES  13 A  170  ASN ASP VAL PHE LEU GLY ILE GLY GLU LYS ILE PRO LEU          
SEQRES  14 A  170  LYS                                                          
MODRES 1EK0 MHO A   75  MET  S-OXYMETHIONINE                                    
MODRES 1EK0 MHO A  124  MET  S-OXYMETHIONINE                                    
HET    MHO  A  75      14                                                       
HET    MHO  A 124      14                                                       
HET     MG  A 601       1                                                       
HET     NI  A 602       1                                                       
HET    GNP  A 501      32                                                       
HET    GDP  A 502      28                                                       
HETNAM     MHO S-OXYMETHIONINE                                                  
HETNAM      MG MAGNESIUM ION                                                    
HETNAM      NI NICKEL (II) ION                                                  
HETNAM     GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER                      
HETNAM     GDP GUANOSINE-5'-DIPHOSPHATE                                         
FORMUL   1  MHO    2(C5 H11 N O3 S)                                             
FORMUL   2   MG    MG 2+                                                        
FORMUL   3   NI    NI 2+                                                        
FORMUL   4  GNP    C10 H17 N6 O13 P3                                            
FORMUL   5  GDP    C10 H15 N5 O11 P2                                            
FORMUL   6  HOH   *209(H2 O)                                                    
HELIX    1   1 GLY A   19  ASN A   30  1                                  12    
HELIX    2   2 GLN A   66  ALA A   73  5                                   8    
HELIX    3   3 LYS A   91  ALA A  109  1                                  19    
HELIX    4   4 ALA A  134  GLY A  146  1                                  13    
HELIX    5   5 ASN A  159  GLU A  169  1                                  11    
SHEET    1   A 6 ALA A  42  ILE A  51  0                                        
SHEET    2   A 6 HIS A  54  THR A  63 -1  N  HIS A  54   O  ILE A  51           
SHEET    3   A 6 THR A   6  LEU A  13  1  O  THR A   6   N  LYS A  57           
SHEET    4   A 6 ALA A  82  ASP A  88  1  O  ALA A  82   N  VAL A  11           
SHEET    5   A 6 ILE A 114  ASN A 120  1  O  ILE A 114   N  ALA A  83           
SHEET    6   A 6 LEU A 148  GLU A 151  1  O  LEU A 148   N  LEU A 117           
LINK         C   PRO A  74                 N   MHO A  75     1555   1555  1.33  
LINK         C   MHO A  75                 N   TYR A  76     1555   1555  1.33  
LINK         C   ASP A 123                 N   MHO A 124     1555   1555  1.34  
LINK         C   MHO A 124                 N   LEU A 125     1555   1555  1.32  
LINK         OG  SER A  21                MG    MG A 601     1555   1555  2.06  
LINK         OG1 THR A  39                MG    MG A 601     1555   1555  2.22  
LINK         NE2 HIS A  54                NI    NI A 602     1555   1555  2.06  
LINK         O2B GNP A 501                MG    MG A 601     1555   1555  2.02  
LINK         O1G GNP A 501                MG    MG A 601     1555   1555  2.05  
LINK         N7  GDP A 502                NI    NI A 602     1555   1555  2.03  
LINK        MG    MG A 601                 O   HOH A1001     1555   1555  2.16  
LINK        MG    MG A 601                 O   HOH A1002     1555   1555  2.06  
LINK        NI    NI A 602                 O   HOH A1016     1555   1555  2.06  
LINK        NI    NI A 602                 O   HOH A1154     1555   1555  2.14  
LINK        NI    NI A 602                 O   HOH A1155     1555   1555  2.14  
LINK        NI    NI A 602                 O   HOH A1156     1555   1555  2.13  
SITE     1 AC1  5 SER A  21  THR A  39  GNP A 501  HOH A1001                    
SITE     2 AC1  5 HOH A1002                                                     
SITE     1 AC2  6 HIS A  54  GDP A 502  HOH A1016  HOH A1154                    
SITE     2 AC2  6 HOH A1155  HOH A1156                                          
SITE     1 AC3 29 ALA A  16  ALA A  17  VAL A  18  GLY A  19                    
SITE     2 AC3 29 LYS A  20  SER A  21  SER A  22  PHE A  32                    
SITE     3 AC3 29 ALA A  33  GLU A  34  PRO A  38  THR A  39                    
SITE     4 AC3 29 GLY A  65  ASN A 120  LYS A 121  ASP A 123                    
SITE     5 AC3 29 MHO A 124  SER A 153  ALA A 154  LYS A 155                    
SITE     6 AC3 29  MG A 601  HOH A1001  HOH A1002  HOH A1019                    
SITE     7 AC3 29 HOH A1044  HOH A1070  HOH A1091  HOH A1096                    
SITE     8 AC3 29 HOH A1112                                                     
SITE     1 AC4 22 PHE A  44  THR A  46  ARG A  48  ASN A  52                    
SITE     2 AC4 22 HIS A  54  LYS A  57  GLU A 130  ARG A 131                    
SITE     3 AC4 22 LYS A 132  GLU A 169  LEU A 173   NI A 602                    
SITE     4 AC4 22 HOH A1003  HOH A1013  HOH A1016  HOH A1023                    
SITE     5 AC4 22 HOH A1032  HOH A1039  HOH A1108  HOH A1140                    
SITE     6 AC4 22 HOH A1154  HOH A1156                                          
CRYST1   62.326   62.326   91.221  90.00  90.00 120.00 P 61          6          
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      0.016045  0.009263  0.000000        0.00000                         
SCALE2      0.000000  0.018527  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.010962        0.00000