HEADER    TRANSFERASE                             30-APR-15   5A1G              
TITLE     THE STRUCTURE OF HUMAN MAT2A IN COMPLEX WITH S-ADENOSYLETHIONINE AND  
TITLE    2 PPNP.                                                                
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, METHIONINE                
COMPND   6 ADENOSYLTRANSFERASE 2A;                                              
COMPND   7 EC: 2.5.1.6;                                                         
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 511693;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21;                                      
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PNIC28-BSA4                               
KEYWDS    TRANSFERASE, METHIONINE ADENOSYLTRANSFERASE, CELL GROWTH, LIVER       
KEYWDS   2 CANCER, METHYLATION                                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    B.MURRAY,S.V.ANTONYUK,A.MARINA,S.C.LU,J.M.MATO,S.S.HASNAIN,A.L.ROJAS  
REVDAT   3   10-JAN-24 5A1G    1       COMPND REMARK HETNAM LINK                
REVDAT   2   09-MAR-16 5A1G    1       JRNL                                     
REVDAT   1   17-FEB-16 5A1G    0                                                
JRNL        AUTH   B.MURRAY,S.V.ANTONYUK,A.MARINA,S.C.LU,J.M.MATO,S.S.HASNAIN,  
JRNL        AUTH 2 A.L.ROJAS                                                    
JRNL        TITL   CRYSTALLOGRAPHY CAPTURES CATALYTIC STEPS IN HUMAN METHIONINE 
JRNL        TITL 2 ADENOSYLTRANSFERASE ENZYMES.                                 
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 113  2104 2016              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   26858410                                                     
JRNL        DOI    10.1073/PNAS.1510959113                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.83 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.8.0135                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.83                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 58.69                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 32055                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.122                           
REMARK   3   R VALUE            (WORKING SET) : 0.120                           
REMARK   3   FREE R VALUE                     : 0.175                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1633                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.83                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.88                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 2356                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.72                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1770                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 133                          
REMARK   3   BIN FREE R VALUE                    : 0.2640                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2954                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 65                                      
REMARK   3   SOLVENT ATOMS            : 278                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 20.78                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 3.06000                                              
REMARK   3    B22 (A**2) : -0.38000                                             
REMARK   3    B33 (A**2) : -2.68000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.297         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.105         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.070         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.260         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.979                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.946                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3134 ; 0.008 ; 0.019       
REMARK   3   BOND LENGTHS OTHERS               (A):  3033 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  4254 ; 1.376 ; 1.984       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  6975 ; 0.913 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   391 ; 6.268 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   139 ;36.702 ;23.453       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   540 ;12.279 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    25 ;20.264 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   471 ; 0.081 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3524 ; 0.004 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):   710 ; 0.002 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  1540 ; 1.592 ; 1.847       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  1539 ; 1.591 ; 1.846       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1930 ; 1.966 ; 2.772       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  1931 ; 1.966 ; 2.774       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1594 ; 2.178 ; 2.139       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  1595 ; 2.178 ; 2.140       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  2322 ; 2.664 ; 3.111       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  3571 ; 3.773 ;15.829       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  3572 ; 3.772 ;15.831       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  6164 ; 1.150 ; 3.000       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):    88 ;35.870 ; 5.000       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  6296 ; 9.726 ; 5.000       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS. U VALUES REFINED INDIVIDUALLY                            
REMARK   4                                                                      
REMARK   4 5A1G COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 30-APR-15.                  
REMARK 100 THE DEPOSITION ID IS D_1290063718.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 11-AUG-14                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : DIAMOND                            
REMARK 200  BEAMLINE                       : I04-1                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.92                               
REMARK 200  MONOCHROMATOR                  : SI111                              
REMARK 200  OPTICS                         : 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          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 32401                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.830                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 29.340                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.3                               
REMARK 200  DATA REDUNDANCY                : 13.30                              
REMARK 200  R MERGE                    (I) : 0.10000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 21.5000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.83                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.90                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 97.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 12.50                              
REMARK 200  R MERGE FOR SHELL          (I) : 0.81000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.400                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: PDB ENTRY 2P02                                       
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 39.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.00                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M IMIDAZOLE PH 7.0, 50 % MPD         
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       34.19500            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       47.19500            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       58.69500            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       34.19500            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       47.19500            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       58.69500            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       34.19500            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       47.19500            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       58.69500            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       34.19500            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       47.19500            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       58.69500            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 23850 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 45230 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -230.1 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      117.39000            
REMARK 350   BIOMT1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   3  0.000000  0.000000 -1.000000      117.39000            
REMARK 350   BIOMT1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   4  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 A2207  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     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: 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    THR A  62      115.19    -38.70                                   
REMARK 500    VAL A 226      -68.15   -107.33                                   
REMARK 500    PHE A 250       61.03   -157.60                                   
REMARK 500    THR A 270     -100.45   -119.15                                   
REMARK 500    ARG A 292      -64.47    -90.01                                   
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 406  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  31   OD2                                                    
REMARK 620 2 PPK A 402   O2A  83.5                                              
REMARK 620 3 PPK A 402   O1B 173.3  89.8                                        
REMARK 620 4 PPK A 402   O2G  92.2  90.7  88.2                                  
REMARK 620 5 HOH A2014   O    92.7 167.5  93.7 101.4                            
REMARK 620 6 HOH A2015   O    88.5  86.3  90.7 176.8  81.7                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K A 405   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A  57   OE2                                                    
REMARK 620 2 ASP A 258   OD1 157.8                                              
REMARK 620 3 ALA A 259   O   104.5  85.5                                        
REMARK 620 4 PPK A 402   O1B  95.6  97.2 117.6                                  
REMARK 620 5 HOH A2014   O    66.5 135.7  71.2  64.4                            
REMARK 620 6 HOH A2015   O   120.5  81.6  57.5  61.3  54.1                      
REMARK 620 7 HOH A2035   O    81.3  77.5  98.8 142.8 141.6 149.7                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 407  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 PPK A 402   O4A                                                    
REMARK 620 2 PPK A 402   O1G  88.5                                              
REMARK 620 3 HOH A2006   O    84.3 155.0                                        
REMARK 620 4 HOH A2008   O    82.0  78.0  77.3                                  
REMARK 620 5 HOH A2273   O    90.7 119.9  84.1 160.6                            
REMARK 620 6 HOH A2276   O   160.6  96.7  83.2  80.8 102.7                      
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 MPD A 400                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PPK A 402                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IMD A 403                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE S7M A 404                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 405                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 406                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 407                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 5A19   RELATED DB: PDB                                   
REMARK 900 THE STRUCTURE OF MAT2A IN COMPLEX WITH PPNP.                         
REMARK 900 RELATED ID: 5A1I   RELATED DB: PDB                                   
REMARK 900 THE STRUCTURE OF HUMAB MAT2A IN COMPLEX WITH SAME, ADENOSINE,        
REMARK 900 METHIONINE AND PPNP.                                                 
DBREF  5A1G A    1   395  UNP    P31153   METK2_HUMAN      1    395             
SEQRES   1 A  395  MET ASN GLY GLN LEU ASN GLY PHE HIS GLU ALA PHE ILE          
SEQRES   2 A  395  GLU GLU GLY THR PHE LEU PHE THR SER GLU SER VAL GLY          
SEQRES   3 A  395  GLU GLY HIS PRO ASP LYS ILE CYS ASP GLN ILE SER ASP          
SEQRES   4 A  395  ALA VAL LEU ASP ALA HIS LEU GLN GLN ASP PRO ASP ALA          
SEQRES   5 A  395  LYS VAL ALA CYS GLU THR VAL ALA LYS THR GLY MET ILE          
SEQRES   6 A  395  LEU LEU ALA GLY GLU ILE THR SER ARG ALA ALA VAL ASP          
SEQRES   7 A  395  TYR GLN LYS VAL VAL ARG GLU ALA VAL LYS HIS ILE GLY          
SEQRES   8 A  395  TYR ASP ASP SER SER LYS GLY PHE ASP TYR LYS THR CYS          
SEQRES   9 A  395  ASN VAL LEU VAL ALA LEU GLU GLN GLN SER PRO ASP ILE          
SEQRES  10 A  395  ALA GLN GLY VAL HIS LEU ASP ARG ASN GLU GLU ASP ILE          
SEQRES  11 A  395  GLY ALA GLY ASP GLN GLY LEU MET PHE GLY TYR ALA THR          
SEQRES  12 A  395  ASP GLU THR GLU GLU CYS MET PRO LEU THR ILE VAL LEU          
SEQRES  13 A  395  ALA HIS LYS LEU ASN ALA LYS LEU ALA GLU LEU ARG ARG          
SEQRES  14 A  395  ASN GLY THR LEU PRO TRP LEU ARG PRO ASP SER LYS THR          
SEQRES  15 A  395  GLN VAL THR VAL GLN TYR MET GLN ASP ARG GLY ALA VAL          
SEQRES  16 A  395  LEU PRO ILE ARG VAL HIS THR ILE VAL ILE SER VAL GLN          
SEQRES  17 A  395  HIS ASP GLU GLU VAL CYS LEU ASP GLU MET ARG ASP ALA          
SEQRES  18 A  395  LEU LYS GLU LYS VAL ILE LYS ALA VAL VAL PRO ALA LYS          
SEQRES  19 A  395  TYR LEU ASP GLU ASP THR ILE TYR HIS LEU GLN PRO SER          
SEQRES  20 A  395  GLY ARG PHE VAL ILE GLY GLY PRO GLN GLY ASP ALA GLY          
SEQRES  21 A  395  LEU THR GLY ARG LYS ILE ILE VAL ASP THR TYR GLY GLY          
SEQRES  22 A  395  TRP GLY ALA HIS GLY GLY GLY ALA PHE SER GLY LYS ASP          
SEQRES  23 A  395  TYR THR LYS VAL ASP ARG SER ALA ALA TYR ALA ALA ARG          
SEQRES  24 A  395  TRP VAL ALA LYS SER LEU VAL LYS GLY GLY LEU CYS ARG          
SEQRES  25 A  395  ARG VAL LEU VAL GLN VAL SER TYR ALA ILE GLY VAL SER          
SEQRES  26 A  395  HIS PRO LEU SER ILE SER ILE PHE HIS TYR GLY THR SER          
SEQRES  27 A  395  GLN LYS SER GLU ARG GLU LEU LEU GLU ILE VAL LYS LYS          
SEQRES  28 A  395  ASN PHE ASP LEU ARG PRO GLY VAL ILE VAL ARG ASP LEU          
SEQRES  29 A  395  ASP LEU LYS LYS PRO ILE TYR GLN ARG THR ALA ALA TYR          
SEQRES  30 A  395  GLY HIS PHE GLY ARG ASP SER PHE PRO TRP GLU VAL PRO          
SEQRES  31 A  395  LYS LYS LEU LYS TYR                                          
HET    MPD  A 400       8                                                       
HET    MPD  A 401       8                                                       
HET    PPK  A 402      13                                                       
HET    IMD  A 403       5                                                       
HET    S7M  A 404      28                                                       
HET      K  A 405       1                                                       
HET     MG  A 406       1                                                       
HET     MG  A 407       1                                                       
HETNAM     MPD (4S)-2-METHYL-2,4-PENTANEDIOL                                    
HETNAM     PPK (DIPHOSPHONO)AMINOPHOSPHONIC ACID                                
HETNAM     IMD IMIDAZOLE                                                        
HETNAM     S7M [(3S)-3-AMINO-3-CARBOXYPROPYL]{[(2S,3S,4R,5R)-5-(6-              
HETNAM   2 S7M  AMINO-9H-PURIN-9-YL)-3,4-DIHYDROXYTETRAHYDROFURAN-2-            
HETNAM   3 S7M  YL]METHYL}ETHYLS ULFONIUM                                       
HETNAM       K POTASSIUM ION                                                    
HETNAM      MG MAGNESIUM ION                                                    
HETSYN     S7M S-ADENOSYL ETHIONINE                                             
FORMUL   2  MPD    2(C6 H14 O2)                                                 
FORMUL   4  PPK    H6 N O9 P3                                                   
FORMUL   5  IMD    C3 H5 N2 1+                                                  
FORMUL   6  S7M    C16 H25 N6 O5 S 1+                                           
FORMUL   7    K    K 1+                                                         
FORMUL   8   MG    2(MG 2+)                                                     
FORMUL  10  HOH   *278(H2 O)                                                    
HELIX    1   1 HIS A   29  ASP A   49  1                                  21    
HELIX    2   2 ASP A   78  GLY A   91  1                                  14    
HELIX    3   3 SER A   95  GLY A   98  5                                   4    
HELIX    4   4 SER A  114  HIS A  122  1                                   9    
HELIX    5   5 ASN A  126  ILE A  130  5                                   5    
HELIX    6   6 PRO A  151  ASN A  170  1                                  20    
HELIX    7   7 CYS A  214  LYS A  225  1                                  12    
HELIX    8   8 VAL A  226  VAL A  231  1                                   6    
HELIX    9   9 PRO A  232  LEU A  236  5                                   5    
HELIX   10  10 GLY A  253  GLY A  257  5                                   5    
HELIX   11  11 LYS A  289  GLY A  308  1                                  20    
HELIX   12  12 SER A  341  PHE A  353  1                                  13    
HELIX   13  13 ARG A  356  LEU A  364  1                                   9    
HELIX   14  14 TYR A  371  ALA A  375  5                                   5    
HELIX   15  15 PHE A  385  VAL A  389  5                                   5    
SHEET    1  AA 4 THR A  17  VAL A  25  0                                        
SHEET    2  AA 4 LEU A 176  ASP A 191 -1  O  THR A 182   N  SER A  24           
SHEET    3  AA 4 ALA A 194  HIS A 209 -1  O  ALA A 194   N  ASP A 191           
SHEET    4  AA 4 ILE A 241  LEU A 244  1  O  ILE A 241   N  ILE A 203           
SHEET    1  AB 4 ASN A 105  GLU A 111  0                                        
SHEET    2  AB 4 MET A  64  THR A  72  1  O  ILE A  65   N  LEU A 107           
SHEET    3  AB 4 LYS A  53  LYS A  61 -1  O  LYS A  53   N  THR A  72           
SHEET    4  AB 4 GLY A 260  LEU A 261 -1  O  GLY A 260   N  ALA A  60           
SHEET    1  AC 2 ASP A  93  ASP A  94  0                                        
SHEET    2  AC 2 PHE A  99  ASP A 100 -1  O  PHE A  99   N  ASP A  94           
SHEET    1  AD 3 GLY A 136  THR A 143  0                                        
SHEET    2  AD 3 ARG A 313  TYR A 320 -1  O  VAL A 314   N  ALA A 142           
SHEET    3  AD 3 SER A 329  PHE A 333 -1  O  SER A 329   N  SER A 319           
LINK         OD2 ASP A  31                MG    MG A 406     1555   1555  2.14  
LINK         OE2 GLU A  57                 K     K A 405     2555   1555  2.89  
LINK         OD1 ASP A 258                 K     K A 405     1555   1555  2.76  
LINK         O   ALA A 259                 K     K A 405     1555   1555  2.89  
LINK         O1B PPK A 402                 K     K A 405     1555   1555  2.73  
LINK         O2A PPK A 402                MG    MG A 406     1555   1555  2.04  
LINK         O1B PPK A 402                MG    MG A 406     1555   1555  2.08  
LINK         O2G PPK A 402                MG    MG A 406     1555   1555  2.01  
LINK         O4A PPK A 402                MG    MG A 407     1555   1555  2.02  
LINK         O1G PPK A 402                MG    MG A 407     1555   1555  2.29  
LINK         K     K A 405                 O   HOH A2014     1555   1555  3.09  
LINK         K     K A 405                 O   HOH A2015     1555   1555  3.12  
LINK         K     K A 405                 O   HOH A2035     1555   2555  2.97  
LINK        MG    MG A 406                 O   HOH A2014     1555   1555  2.18  
LINK        MG    MG A 406                 O   HOH A2015     1555   1555  2.13  
LINK        MG    MG A 407                 O   HOH A2006     1555   1555  2.66  
LINK        MG    MG A 407                 O   HOH A2008     1555   1555  2.40  
LINK        MG    MG A 407                 O   HOH A2273     1555   1555  2.00  
LINK        MG    MG A 407                 O   HOH A2276     1555   1555  1.90  
SITE     1 AC1  4 GLY A 273  GLY A 275  ARG A 313  TYR A 335                    
SITE     1 AC2 21 HIS A  29  ASP A  31  ASP A 134  LYS A 181                    
SITE     2 AC2 21 ARG A 264  LYS A 265  GLY A 280  ALA A 281                    
SITE     3 AC2 21 LYS A 285  ASP A 291  S7M A 404    K A 405                    
SITE     4 AC2 21  MG A 406   MG A 407  HOH A2008  HOH A2015                    
SITE     5 AC2 21 HOH A2208  HOH A2209  HOH A2273  HOH A2274                    
SITE     6 AC2 21 HOH A2275                                                     
SITE     1 AC3  4 PHE A  18  GLN A 190  GLU A 342  HOH A2154                    
SITE     1 AC4 24 HIS A  29  PRO A  30  ALA A  55  GLU A  70                    
SITE     2 AC4 24 GLN A 113  ASP A 116  ILE A 117  GLY A 133                    
SITE     3 AC4 24 ASP A 134  ASP A 179  LYS A 181  SER A 247                    
SITE     4 AC4 24 ARG A 249  PHE A 250  ASP A 258  LYS A 289                    
SITE     5 AC4 24 ILE A 322  PPK A 402  HOH A2040  HOH A2106                    
SITE     6 AC4 24 HOH A2204  HOH A2206  HOH A2274  HOH A2277                    
SITE     1 AC5  7 GLU A  57  ASP A 258  ALA A 259  PPK A 402                    
SITE     2 AC5  7  MG A 406  HOH A2014  HOH A2035                               
SITE     1 AC6  6 ASP A  31  LYS A 265  PPK A 402    K A 405                    
SITE     2 AC6  6 HOH A2014  HOH A2015                                          
SITE     1 AC7  6 ASP A 291  PPK A 402  HOH A2006  HOH A2008                    
SITE     2 AC7  6 HOH A2273  HOH A2276                                          
CRYST1   68.390   94.390  117.390  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      0.014622  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010594  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008519        0.00000