HEADER    TRANSFERASE/INHIBITOR                   14-DEC-20   7L1A              
TITLE     HUMAN METHIONINE ADENOSYLTRANSFERASE 2A BOUND TO METHYLTHIOADENOSINE  
TITLE    2 AND INHIBITOR, DI-IMIDO TRIPHOSPHATE (PNPNP)                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: S-ADENOSYLMETHIONINE SYNTHASE ISOFORM TYPE-2;              
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: ADOMET SYNTHASE 2,METHIONINE ADENOSYLTRANSFERASE 2,MAT 2,   
COMPND   5 METHIONINE ADENOSYLTRANSFERASE II,MAT-II;                            
COMPND   6 EC: 2.5.1.6;                                                         
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: MAT2A, AMS2, MATA2;                                            
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 469008                                      
KEYWDS    S-ADENOSYLMETHIONINE, SAM SYNTHETASE, ENZYME MECHANISM, INHIBITOR,    
KEYWDS   2 TRANSFERASE-INHIBITOR COMPLEX                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.N.NILAND,E.FEDOROV,V.L.SCHRAMM,A.GHOSH                              
REVDAT   3   18-OCT-23 7L1A    1       SHEET                                    
REVDAT   2   31-MAR-21 7L1A    1       JRNL                                     
REVDAT   1   17-MAR-21 7L1A    0                                                
JRNL        AUTH   C.N.NILAND,A.GHOSH,S.M.CAHILL,V.L.SCHRAMM                    
JRNL        TITL   MECHANISM AND INHIBITION OF HUMAN METHIONINE                 
JRNL        TITL 2 ADENOSYLTRANSFERASE 2A.                                      
JRNL        REF    BIOCHEMISTRY                  V.  60   791 2021              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   33656855                                                     
JRNL        DOI    10.1021/ACS.BIOCHEM.0C00998                                  
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.25 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.19RC5_4047                                  
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.25                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 18.92                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.340                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 103795                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.124                           
REMARK   3   R VALUE            (WORKING SET) : 0.123                           
REMARK   3   FREE R VALUE                     : 0.141                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.030                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 5223                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 18.9200 -  3.8700    1.00     3483   196  0.1369 0.1587        
REMARK   3     2  3.8700 -  3.0800    1.00     3366   185  0.1311 0.1447        
REMARK   3     3  3.0800 -  2.6900    1.00     3344   174  0.1299 0.1464        
REMARK   3     4  2.6900 -  2.4500    1.00     3315   168  0.1276 0.1267        
REMARK   3     5  2.4500 -  2.2700    1.00     3313   173  0.1170 0.1351        
REMARK   3     6  2.2700 -  2.1400    1.00     3328   175  0.1141 0.1235        
REMARK   3     7  2.1400 -  2.0300    1.00     3309   173  0.1123 0.1316        
REMARK   3     8  2.0300 -  1.9400    1.00     3306   165  0.1112 0.1282        
REMARK   3     9  1.9400 -  1.8700    1.00     3247   203  0.1228 0.1403        
REMARK   3    10  1.8700 -  1.8000    1.00     3269   175  0.1118 0.1343        
REMARK   3    11  1.8000 -  1.7500    1.00     3280   181  0.1158 0.1429        
REMARK   3    12  1.7500 -  1.7000    1.00     3284   189  0.1117 0.1335        
REMARK   3    13  1.7000 -  1.6500    1.00     3259   174  0.1124 0.1515        
REMARK   3    14  1.6500 -  1.6100    1.00     3276   185  0.1078 0.1231        
REMARK   3    15  1.6100 -  1.5700    1.00     3299   161  0.1052 0.1068        
REMARK   3    16  1.5700 -  1.5400    1.00     3269   170  0.1034 0.1287        
REMARK   3    17  1.5400 -  1.5100    1.00     3256   160  0.1080 0.1221        
REMARK   3    18  1.5100 -  1.4800    1.00     3284   162  0.1076 0.1419        
REMARK   3    19  1.4800 -  1.4600    1.00     3272   169  0.1086 0.1183        
REMARK   3    20  1.4600 -  1.4300    1.00     3284   167  0.1072 0.1291        
REMARK   3    21  1.4300 -  1.4100    1.00     3249   180  0.1106 0.1353        
REMARK   3    22  1.4100 -  1.3900    1.00     3268   171  0.1127 0.1340        
REMARK   3    23  1.3900 -  1.3700    1.00     3267   161  0.1117 0.1375        
REMARK   3    24  1.3700 -  1.3500    1.00     3267   158  0.1324 0.1379        
REMARK   3    25  1.3500 -  1.3300    1.00     3238   192  0.1400 0.1577        
REMARK   3    26  1.3300 -  1.3100    1.00     3242   159  0.1485 0.1926        
REMARK   3    27  1.3100 -  1.2900    1.00     3261   180  0.1618 0.1901        
REMARK   3    28  1.2900 -  1.2800    1.00     3273   187  0.1580 0.1761        
REMARK   3    29  1.2800 -  1.2600    1.00     3208   170  0.1543 0.1817        
REMARK   3    30  1.2600 -  1.2500    1.00     3256   160  0.1583 0.1792        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.080            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 12.000           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 7.55                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 11.76                          
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :   NULL           NULL                                  
REMARK   3   ANGLE     :   NULL           NULL                                  
REMARK   3   CHIRALITY :   NULL           NULL                                  
REMARK   3   PLANARITY :   NULL           NULL                                  
REMARK   3   DIHEDRAL  :   NULL           NULL                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 7L1A COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-DEC-20.                  
REMARK 100 THE DEPOSITION ID IS D_1000253540.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 06-NOV-20                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.3                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 31-ID                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.98                               
REMARK 200  MONOCHROMATOR                  : SI(111)                            
REMARK 200  OPTICS                         : KB MIRRORS                         
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS PILATUS 6M                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : AIMLESS 0.7.4                      
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 103846                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.250                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 18.920                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 12.30                              
REMARK 200  R MERGE                    (I) : 0.17100                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.25                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.27                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 12.10                              
REMARK 200  R MERGE FOR SHELL          (I) : 0.58400                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER 2.8.3                                          
REMARK 200 STARTING MODEL: PDB ENTRY 5A1I                                       
REMARK 200                                                                      
REMARK 200 REMARK: PLATES                                                       
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 39.43                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.03                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M LITHIUM CITRATE, 15% PEG3350, PH   
REMARK 280  8.3, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 292K                
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X,Y,-Z                                                 
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   X+1/2,-Y+1/2,-Z+1/2                                     
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        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
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        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       34.05650            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       47.07400            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       58.61850            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       34.05650            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       47.07400            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       58.61850            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       34.05650            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       47.07400            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       58.61850            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       34.05650            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       47.07400            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       58.61850            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 10100 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 24400 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -170.0 KCAL/MOL                       
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 350   BIOMT1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 594  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 749  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 769  LIES ON A SPECIAL POSITION.                          
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A   -21                                                      
REMARK 465     HIS A   -20                                                      
REMARK 465     HIS A   -19                                                      
REMARK 465     HIS A   -18                                                      
REMARK 465     HIS A   -17                                                      
REMARK 465     HIS A   -16                                                      
REMARK 465     HIS A   -15                                                      
REMARK 465     SER A   -14                                                      
REMARK 465     SER A   -13                                                      
REMARK 465     GLY A   -12                                                      
REMARK 465     VAL A   -11                                                      
REMARK 465     ASP A   -10                                                      
REMARK 465     LEU A    -9                                                      
REMARK 465     GLY A    -8                                                      
REMARK 465     THR A    -7                                                      
REMARK 465     GLU A    -6                                                      
REMARK 465     ASN A    -5                                                      
REMARK 465     LEU A    -4                                                      
REMARK 465     TYR A    -3                                                      
REMARK 465     PHE A    -2                                                      
REMARK 465     GLN A    -1                                                      
REMARK 465     SER A     0                                                      
REMARK 465     MET A     1                                                      
REMARK 465     ASN A     2                                                      
REMARK 465     GLY A     3                                                      
REMARK 465     GLN A     4                                                      
REMARK 465     LEU A     5                                                      
REMARK 465     ASN A     6                                                      
REMARK 465     GLY A     7                                                      
REMARK 465     PHE A     8                                                      
REMARK 465     HIS A     9                                                      
REMARK 465     GLU A    10                                                      
REMARK 465     ALA A    11                                                      
REMARK 465     PHE A    12                                                      
REMARK 465     ILE A    13                                                      
REMARK 465     GLU A    14                                                      
REMARK 465     GLU A    15                                                      
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    CYS A 104   CB  -  CA  -  C   ANGL. DEV. =  10.5 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    CYS A 149       31.21     71.65                                   
REMARK 500    VAL A 226      -68.61   -109.20                                   
REMARK 500    THR A 270     -103.04   -121.54                                   
REMARK 500    ASP A 383       15.46     59.18                                   
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 850        DISTANCE =  5.98 ANGSTROMS                       
REMARK 525    HOH A 851        DISTANCE =  6.59 ANGSTROMS                       
REMARK 525    HOH A 852        DISTANCE =  6.71 ANGSTROMS                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 401  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  31   OD2                                                    
REMARK 620 2 XE1 A 404   O1A  85.9                                              
REMARK 620 3 XE1 A 404   O1B 172.6  94.3                                        
REMARK 620 4 XE1 A 404   O2G  95.0  91.7  92.4                                  
REMARK 620 5 HOH A 527   O    89.2 172.2  89.8  94.8                            
REMARK 620 6 HOH A 528   O    87.9  88.9  84.7 177.1  84.8                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 403   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A  57   OE2                                                    
REMARK 620 2 ASP A 258   OD1  42.4                                              
REMARK 620 3 ALA A 259   O    38.4   6.1                                        
REMARK 620 4 XE1 A 404   O1B  43.8   9.7  14.8                                  
REMARK 620 5 HOH A 503   O    50.9  10.4  16.4   8.3                            
REMARK 620 6 HOH A 521   O    51.0   9.5  12.6  16.1  10.7                      
REMARK 620 7 HOH A 527   O    40.5   7.8  11.9   3.7  10.7  16.0                
REMARK 620 8 HOH A 528   O    35.2   8.5   9.3   9.6  15.7  18.1   5.8          
REMARK 620 N                    1     2     3     4     5     6     7           
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NA A 411  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 THR A 270   OG1                                                    
REMARK 620 2 HOH A 589   O    57.9                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NA A 411  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 TRP A 274   O                                                      
REMARK 620 2 HOH A 589   O    96.8                                              
REMARK 620 3 HOH A 742   O    83.5 103.6                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 402  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 XE1 A 404   O1G                                                    
REMARK 620 2 XE1 A 404   O2A  90.2                                              
REMARK 620 3 HOH A 531   O    84.3  97.7                                        
REMARK 620 4 HOH A 588   O   171.2  88.7  87.3                                  
REMARK 620 5 HOH A 656   O   108.1  89.2 165.9  80.6                            
REMARK 620 6 HOH A 755   O    96.0 172.2  87.6  85.8  84.5                      
REMARK 620 N                    1     2     3     4     5                       
DBREF  7L1A A    1   395  UNP    P31153   METK2_HUMAN      1    395             
SEQADV 7L1A MET A  -21  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A HIS A  -20  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A HIS A  -19  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A HIS A  -18  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A HIS A  -17  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A HIS A  -16  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A HIS A  -15  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A SER A  -14  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A SER A  -13  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A GLY A  -12  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A VAL A  -11  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A ASP A  -10  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A LEU A   -9  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A GLY A   -8  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A THR A   -7  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A GLU A   -6  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A ASN A   -5  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A LEU A   -4  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A TYR A   -3  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A PHE A   -2  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A GLN A   -1  UNP  P31153              EXPRESSION TAG                 
SEQADV 7L1A SER A    0  UNP  P31153              EXPRESSION TAG                 
SEQRES   1 A  417  MET HIS HIS HIS HIS HIS HIS SER SER GLY VAL ASP LEU          
SEQRES   2 A  417  GLY THR GLU ASN LEU TYR PHE GLN SER MET ASN GLY GLN          
SEQRES   3 A  417  LEU ASN GLY PHE HIS GLU ALA PHE ILE GLU GLU GLY THR          
SEQRES   4 A  417  PHE LEU PHE THR SER GLU SER VAL GLY GLU GLY HIS PRO          
SEQRES   5 A  417  ASP LYS ILE CYS ASP GLN ILE SER ASP ALA VAL LEU ASP          
SEQRES   6 A  417  ALA HIS LEU GLN GLN ASP PRO ASP ALA LYS VAL ALA CYS          
SEQRES   7 A  417  GLU THR VAL ALA LYS THR GLY MET ILE LEU LEU ALA GLY          
SEQRES   8 A  417  GLU ILE THR SER ARG ALA ALA VAL ASP TYR GLN LYS VAL          
SEQRES   9 A  417  VAL ARG GLU ALA VAL LYS HIS ILE GLY TYR ASP ASP SER          
SEQRES  10 A  417  SER LYS GLY PHE ASP TYR LYS THR CYS ASN VAL LEU VAL          
SEQRES  11 A  417  ALA LEU GLU GLN GLN SER PRO ASP ILE ALA GLN GLY VAL          
SEQRES  12 A  417  HIS LEU ASP ARG ASN GLU GLU ASP ILE GLY ALA GLY ASP          
SEQRES  13 A  417  GLN GLY LEU MET PHE GLY TYR ALA THR ASP GLU THR GLU          
SEQRES  14 A  417  GLU CYS MET PRO LEU THR ILE VAL LEU ALA HIS LYS LEU          
SEQRES  15 A  417  ASN ALA LYS LEU ALA GLU LEU ARG ARG ASN GLY THR LEU          
SEQRES  16 A  417  PRO TRP LEU ARG PRO ASP SER LYS THR GLN VAL THR VAL          
SEQRES  17 A  417  GLN TYR MET GLN ASP ARG GLY ALA VAL LEU PRO ILE ARG          
SEQRES  18 A  417  VAL HIS THR ILE VAL ILE SER VAL GLN HIS ASP GLU GLU          
SEQRES  19 A  417  VAL CYS LEU ASP GLU MET ARG ASP ALA LEU LYS GLU LYS          
SEQRES  20 A  417  VAL ILE LYS ALA VAL VAL PRO ALA LYS TYR LEU ASP GLU          
SEQRES  21 A  417  ASP THR ILE TYR HIS LEU GLN PRO SER GLY ARG PHE VAL          
SEQRES  22 A  417  ILE GLY GLY PRO GLN GLY ASP ALA GLY LEU THR GLY ARG          
SEQRES  23 A  417  LYS ILE ILE VAL ASP THR TYR GLY GLY TRP GLY ALA HIS          
SEQRES  24 A  417  GLY GLY GLY ALA PHE SER GLY LYS ASP TYR THR LYS VAL          
SEQRES  25 A  417  ASP ARG SER ALA ALA TYR ALA ALA ARG TRP VAL ALA LYS          
SEQRES  26 A  417  SER LEU VAL LYS GLY GLY LEU CYS ARG ARG VAL LEU VAL          
SEQRES  27 A  417  GLN VAL SER TYR ALA ILE GLY VAL SER HIS PRO LEU SER          
SEQRES  28 A  417  ILE SER ILE PHE HIS TYR GLY THR SER GLN LYS SER GLU          
SEQRES  29 A  417  ARG GLU LEU LEU GLU ILE VAL LYS LYS ASN PHE ASP LEU          
SEQRES  30 A  417  ARG PRO GLY VAL ILE VAL ARG ASP LEU ASP LEU LYS LYS          
SEQRES  31 A  417  PRO ILE TYR GLN ARG THR ALA ALA TYR GLY HIS PHE GLY          
SEQRES  32 A  417  ARG ASP SER PHE PRO TRP GLU VAL PRO LYS LYS LEU LYS          
SEQRES  33 A  417  TYR                                                          
HET     MG  A 401       1                                                       
HET     MG  A 402       1                                                       
HET      K  A 403       1                                                       
HET    XE1  A 404      18                                                       
HET    MTA  A 405      35                                                       
HET    ALA  A 406       9                                                       
HET     NA  A 407       1                                                       
HET     NA  A 408       1                                                       
HET     NA  A 409       1                                                       
HET     NA  A 410       1                                                       
HET     NA  A 411       2                                                       
HET     NA  A 412       1                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM       K POTASSIUM ION                                                    
HETNAM     XE1 N,N'-(DIHYDROXY-LAMBDA~5~-PHOSPHANEDIYL)                         
HETNAM   2 XE1  BIS(PHOSPHORAMIDIC ACID)                                        
HETNAM     MTA 5'-DEOXY-5'-METHYLTHIOADENOSINE                                  
HETNAM     ALA ALANINE                                                          
HETNAM      NA SODIUM ION                                                       
FORMUL   2   MG    2(MG 2+)                                                     
FORMUL   4    K    K 1+                                                         
FORMUL   5  XE1    H9 N2 O8 P3                                                  
FORMUL   6  MTA    C11 H15 N5 O3 S                                              
FORMUL   7  ALA    C3 H7 N O2                                                   
FORMUL   8   NA    6(NA 1+)                                                     
FORMUL  14  HOH   *352(H2 O)                                                    
HELIX    1 AA1 HIS A   29  ASP A   49  1                                  21    
HELIX    2 AA2 ASP A   78  GLY A   91  1                                  14    
HELIX    3 AA4 ASP A  116  VAL A  121  1                                   6    
HELIX    4 AA5 ASN A  126  ILE A  130  5                                   5    
HELIX    5 AA6 VAL A  155  ASN A  170  1                                  16    
HELIX    6 AA9 PRO A  232  LEU A  236  5                                   5    
HELIX    7 AB1 ILE A  266  ASP A  269  5                                   4    
HELIX    8 AB2 LYS A  289  GLY A  308  1                                  20    
HELIX    9 AB3 SER A  341  PHE A  353  1                                  13    
HELIX   10 AB4 PRO A  357  LEU A  364  1                                   8    
HELIX   11 AB5 ILE A  370  ALA A  375  5                                   6    
SHEET    1 AA1 4 THR A  17  VAL A  25  0                                        
SHEET    2 AA1 4 LEU A 176  ASP A 191 -1  O  TYR A 188   N  PHE A  18           
SHEET    3 AA1 4 ALA A 194  HIS A 209 -1  O  ILE A 198   N  GLN A 187           
SHEET    4 AA1 4 ILE A 241  LEU A 244  1  O  HIS A 243   N  ILE A 203           
SHEET    1 AA2 3 ASN A 105  GLU A 111  0                                        
SHEET    2 AA2 3 MET A  64  THR A  72  1  N  LEU A  67   O  ALA A 109           
SHEET    3 AA2 3 LYS A  53  LYS A  61 -1  N  GLU A  57   O  ALA A  68           
SHEET    1 AA4 3 GLY A 136  THR A 143  0                                        
SHEET    2 AA4 3 ARG A 313  TYR A 320 -1  O  VAL A 316   N  GLY A 140           
SHEET    3 AA4 3 SER A 329  PHE A 333 -1  O  PHE A 333   N  LEU A 315           
LINK         OD2 ASP A  31                MG  A MG A 401     1555   1555  2.08  
LINK         OE2 GLU A  57                 K  A  K A 403     1555   2555  2.80  
LINK         OD1 ASP A 258                 K  A  K A 403     1555   1555  2.68  
LINK         O   ALA A 259                 K  A  K A 403     1555   1555  2.83  
LINK         OG1 THR A 270                NA  B NA A 411     1555   1555  3.16  
LINK         O   TRP A 274                NA  A NA A 411     1555   1555  2.72  
LINK         OG  SER A 384                NA    NA A 412     1555   1555  2.83  
LINK        MG  A MG A 401                 O1A XE1 A 404     1555   1555  2.04  
LINK        MG  A MG A 401                 O1B XE1 A 404     1555   1555  2.20  
LINK        MG  A MG A 401                 O2G XE1 A 404     1555   1555  2.09  
LINK        MG  A MG A 401                 O   HOH A 527     1555   1555  2.12  
LINK        MG  A MG A 401                 O   HOH A 528     1555   1555  2.16  
LINK        MG  A MG A 402                 O1G XE1 A 404     1555   1555  2.11  
LINK        MG  A MG A 402                 O2A XE1 A 404     1555   1555  1.96  
LINK        MG  A MG A 402                 O   HOH A 531     1555   1555  2.07  
LINK        MG  A MG A 402                 O   HOH A 588     1555   1555  2.34  
LINK        MG  A MG A 402                 O   HOH A 656     1555   1555  2.09  
LINK        MG  A MG A 402                 O   HOH A 755     1555   1555  2.11  
LINK         K  A  K A 403                 O1B XE1 A 404     1555   1555  2.50  
LINK         K  A  K A 403                 O   HOH A 503     1555   1555  3.16  
LINK         K  A  K A 403                 O   HOH A 521     1555   2555  2.92  
LINK         K  A  K A 403                 O   HOH A 527     1555   1555  3.20  
LINK         K  A  K A 403                 O   HOH A 528     1555   1555  3.14  
LINK        NA  A NA A 411                 O   HOH A 589     1555   1555  2.72  
LINK        NA  B NA A 411                 O   HOH A 589     1555   1555  2.27  
LINK        NA  A NA A 411                 O   HOH A 742     1555   2555  2.98  
CRYST1   68.113   94.148  117.237  90.00  90.00  90.00 I 2 2 2       8          
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      0.014681  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010622  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008530        0.00000