HEADER    LIGASE                                  19-FEB-08   2ZIM              
TITLE     PYRROLYSYL-TRNA SYNTHETASE BOUND TO ADENYLATED PYRROLYSINE AND        
TITLE    2 PYROPHOSPHATE                                                        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PYRROLYSYL-TRNA SYNTHETASE;                                
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: C-TERMINAL DOMAIN, UNP RESIDUES 185-454;                   
COMPND   5 SYNONYM: PYRROLYSINE--TRNA LIGASE, PYLRS;                            
COMPND   6 EC: 6.1.1.26;                                                        
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: METHANOSARCINA MAZEI;                           
SOURCE   3 ORGANISM_TAXID: 2209;                                                
SOURCE   4 GENE: PYLS;                                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21 CODONPLUS RIL (DE3);                  
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET15B                                    
KEYWDS    TRNA SYNTHETASE BOUND TO AN ADENYLATED INTERMEDIATE, AMINOACYL-TRNA   
KEYWDS   2 SYNTHETASE, ATP-BINDING, LIGASE, NUCLEOTIDE-BINDING, PROTEIN         
KEYWDS   3 BIOSYNTHESIS                                                         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    T.A.STEITZ,J.M.KAVRAN                                                 
REVDAT   5   21-FEB-24 2ZIM    1       REMARK SEQADV                            
REVDAT   4   11-OCT-17 2ZIM    1       REMARK                                   
REVDAT   3   10-AUG-11 2ZIM    1       REMARK                                   
REVDAT   2   24-FEB-09 2ZIM    1       VERSN                                    
REVDAT   1   04-MAR-08 2ZIM    0                                                
JRNL        AUTH   J.M.KAVRAN,S.GUNDLLAPALLI,P.O'DONOGHUE,M.ENGLERT,D.SOLL,     
JRNL        AUTH 2 T.A.STEITZ                                                   
JRNL        TITL   STRUCTURE OF PYRROLYSYL-TRNA SYNTHETASE, AN ARCHAEAL ENZYME  
JRNL        TITL 2 FOR GENETIC CODE INNOVATION.                                 
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 104 11268 2007              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   17592110                                                     
JRNL        DOI    10.1073/PNAS.0704769104                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0019                                      
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) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 34.40                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 24560                          
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) : 0.188                           
REMARK   3   R VALUE            (WORKING SET) : 0.186                           
REMARK   3   FREE R VALUE                     : 0.228                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1311                            
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) : 2.10                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.16                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1794                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.89                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2820                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 105                          
REMARK   3   BIN FREE R VALUE                    : 0.3210                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2116                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 89                                      
REMARK   3   SOLVENT ATOMS            : 186                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 45.03                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.42000                                             
REMARK   3    B22 (A**2) : -0.42000                                             
REMARK   3    B33 (A**2) : 0.63000                                              
REMARK   3    B12 (A**2) : -0.21000                                             
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): 0.161         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.153         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.113         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.283         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.963                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.944                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2274 ; 0.020 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  3049 ; 1.835 ; 2.025       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   267 ; 7.036 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   107 ;33.348 ;23.645       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   422 ;15.530 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    20 ;20.025 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   326 ; 0.135 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1670 ; 0.008 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   990 ; 0.215 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  1462 ; 0.308 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   179 ; 0.178 ; 0.200       
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):    60 ; 0.183 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    23 ; 0.230 ; 0.200       
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):  1373 ; 1.339 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2140 ; 2.173 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1019 ; 3.095 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   906 ; 4.819 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
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                                                           
REMARK   4                                                                      
REMARK   4 2ZIM COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-FEB-08.                  
REMARK 100 THE DEPOSITION ID IS D_1000028018.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 17-MAY-07                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : OTHER                              
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.514                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MAR SCANNER 345 MM PLATE           
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 25910                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 40.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : 11.20                              
REMARK 200  R MERGE                    (I) : 0.08700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 26.1000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.18                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: CCP4                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 63.29                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.35                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM TRIS, 10% PEG2000-MME, PH 7.5,    
REMARK 280  VAPOR DIFFUSION, TEMPERATURE 289 K                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 64                             
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                                                 
REMARK 290       5555   Y,-X+Y,Z+1/3                                            
REMARK 290       6555   X-Y,X,Z+2/3                                             
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       23.42067            
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       46.84133            
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  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       23.42067            
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       46.84133            
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: 11370 ANGSTROM**2                         
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       52.53500            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       90.99329            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
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   164                                                      
REMARK 465     GLY A   165                                                      
REMARK 465     SER A   166                                                      
REMARK 465     SER A   167                                                      
REMARK 465     HIS A   168                                                      
REMARK 465     HIS A   169                                                      
REMARK 465     HIS A   170                                                      
REMARK 465     HIS A   171                                                      
REMARK 465     HIS A   172                                                      
REMARK 465     HIS A   173                                                      
REMARK 465     SER A   174                                                      
REMARK 465     SER A   175                                                      
REMARK 465     GLY A   176                                                      
REMARK 465     LEU A   177                                                      
REMARK 465     VAL A   178                                                      
REMARK 465     PRO A   179                                                      
REMARK 465     ARG A   180                                                      
REMARK 465     GLY A   181                                                      
REMARK 465     SER A   182                                                      
REMARK 465     HIS A   183                                                      
REMARK 465     MET A   184                                                      
REMARK 465     ALA A   185                                                      
REMARK 465     SER A   186                                                      
REMARK 465     ALA A   187                                                      
REMARK 465     ILE A   208                                                      
REMARK 465     SER A   209                                                      
REMARK 465     LEU A   210                                                      
REMARK 465     ASN A   211                                                      
REMARK 465     ASN A   280                                                      
REMARK 465     ASP A   281                                                      
REMARK 465     THR A   282                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    HOH A   932     O    HOH A  1059              2.13            
REMARK 500   NE2  HIS A   338     O1   POP A   901              2.19            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH A   939     O    HOH A  1044     4665     2.17            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    GLU A 271   CG    GLU A 271   CD      0.096                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ARG A 298   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.0 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    GLU A 237      -86.65   -104.55                                   
REMARK 500    ASP A 292     -168.22     57.82                                   
REMARK 500    ASP A 386       74.98     74.79                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 902                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 903                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 904                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 905                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 906                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 907                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 908                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 909                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 910                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE EDO A 911                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE YLY A 1                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE POP A 901                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2Q7G   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF PYRROLYSYL-TRNA SYNTHETASE BOUND TO A PYRROLYSINE       
REMARK 900 ANALGOUE (CYC) AND ATP                                               
REMARK 900 RELATED ID: 2Q7E   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF PYRROLYSYL-TRNA SYNTHETASE BOUND TO AN ATP ANALOGUE     
REMARK 900 RELATED ID: 2Q7H   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF PYRROLYSYL-TRNA SYNTHETASE BOUND TO ADENYLATED  
REMARK 900 PYRROLYSINE AND PYROPHOSPHATE, PREVIOUS REFINEMENT                   
DBREF  2ZIM A  185   454  UNP    Q8PWY1   PYLS_METMA     185    454             
SEQADV 2ZIM MET A  164  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM GLY A  165  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM SER A  166  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM SER A  167  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM HIS A  168  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM HIS A  169  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM HIS A  170  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM HIS A  171  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM HIS A  172  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM HIS A  173  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM SER A  174  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM SER A  175  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM GLY A  176  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM LEU A  177  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM VAL A  178  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM PRO A  179  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM ARG A  180  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM GLY A  181  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM SER A  182  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM HIS A  183  UNP  Q8PWY1              EXPRESSION TAG                 
SEQADV 2ZIM MET A  184  UNP  Q8PWY1              EXPRESSION TAG                 
SEQRES   1 A  291  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 A  291  LEU VAL PRO ARG GLY SER HIS MET ALA SER ALA PRO ALA          
SEQRES   3 A  291  LEU THR LYS SER GLN THR ASP ARG LEU GLU VAL LEU LEU          
SEQRES   4 A  291  ASN PRO LYS ASP GLU ILE SER LEU ASN SER GLY LYS PRO          
SEQRES   5 A  291  PHE ARG GLU LEU GLU SER GLU LEU LEU SER ARG ARG LYS          
SEQRES   6 A  291  LYS ASP LEU GLN GLN ILE TYR ALA GLU GLU ARG GLU ASN          
SEQRES   7 A  291  TYR LEU GLY LYS LEU GLU ARG GLU ILE THR ARG PHE PHE          
SEQRES   8 A  291  VAL ASP ARG GLY PHE LEU GLU ILE LYS SER PRO ILE LEU          
SEQRES   9 A  291  ILE PRO LEU GLU TYR ILE GLU ARG MET GLY ILE ASP ASN          
SEQRES  10 A  291  ASP THR GLU LEU SER LYS GLN ILE PHE ARG VAL ASP LYS          
SEQRES  11 A  291  ASN PHE CYS LEU ARG PRO MET LEU ALA PRO ASN LEU TYR          
SEQRES  12 A  291  ASN TYR LEU ARG LYS LEU ASP ARG ALA LEU PRO ASP PRO          
SEQRES  13 A  291  ILE LYS ILE PHE GLU ILE GLY PRO CYS TYR ARG LYS GLU          
SEQRES  14 A  291  SER ASP GLY LYS GLU HIS LEU GLU GLU PHE THR MET LEU          
SEQRES  15 A  291  ASN PHE CYS GLN MET GLY SER GLY CYS THR ARG GLU ASN          
SEQRES  16 A  291  LEU GLU SER ILE ILE THR ASP PHE LEU ASN HIS LEU GLY          
SEQRES  17 A  291  ILE ASP PHE LYS ILE VAL GLY ASP SER CYS MET VAL TYR          
SEQRES  18 A  291  GLY ASP THR LEU ASP VAL MET HIS GLY ASP LEU GLU LEU          
SEQRES  19 A  291  SER SER ALA VAL VAL GLY PRO ILE PRO LEU ASP ARG GLU          
SEQRES  20 A  291  TRP GLY ILE ASP LYS PRO TRP ILE GLY ALA GLY PHE GLY          
SEQRES  21 A  291  LEU GLU ARG LEU LEU LYS VAL LYS HIS ASP PHE LYS ASN          
SEQRES  22 A  291  ILE LYS ARG ALA ALA ARG SER GLU SER TYR TYR ASN GLY          
SEQRES  23 A  291  ILE SER THR ASN LEU                                          
HET    EDO  A 902       4                                                       
HET    EDO  A 903       4                                                       
HET    EDO  A 904       4                                                       
HET    EDO  A 905       4                                                       
HET    EDO  A 906       4                                                       
HET    EDO  A 907       4                                                       
HET    EDO  A 908       4                                                       
HET    EDO  A 909       4                                                       
HET    EDO  A 910       4                                                       
HET    EDO  A 911       4                                                       
HET    YLY  A   1      40                                                       
HET    POP  A 901       9                                                       
HETNAM     EDO 1,2-ETHANEDIOL                                                   
HETNAM     YLY (2R)-2-AMINO-6-({[(2S,3R)-3-METHYLPYRROLIDIN-2-                  
HETNAM   2 YLY  YL]CARBONYL}AMINO)HEXANOYL [(2S,3R,4R,5R)-5-(6-AMINO-           
HETNAM   3 YLY  9H-PURIN-9-YL)-3,4-DIHYDROXYTETRAHYDROFURAN-2-                  
HETNAM   4 YLY  YL]METHYL HYDROGEN (R)-PHOSPHATE                                
HETNAM     POP PYROPHOSPHATE 2-                                                 
HETSYN     EDO ETHYLENE GLYCOL                                                  
FORMUL   2  EDO    10(C2 H6 O2)                                                 
FORMUL  12  YLY    C22 H35 N8 O9 P                                              
FORMUL  13  POP    H2 O7 P2 2-                                                  
FORMUL  14  HOH   *186(H2 O)                                                    
HELIX    1   1 THR A  191  LEU A  202  1                                  12    
HELIX    2   2 PRO A  215  GLU A  237  1                                  23    
HELIX    3   3 ASN A  241  ARG A  257  1                                  17    
HELIX    4   4 LEU A  270  MET A  276  1                                   7    
HELIX    5   5 LEU A  284  ILE A  288  5                                   5    
HELIX    6   6 LEU A  301  ASP A  313  1                                  13    
HELIX    7   7 THR A  355  GLY A  371  1                                  17    
HELIX    8   8 ILE A  405  GLY A  412  5                                   8    
HELIX    9   9 LEU A  424  ASP A  433  1                                  10    
HELIX   10  10 ASN A  436  ALA A  441  5                                   6    
SHEET    1   A 7 LEU A 260  ILE A 262  0                                        
SHEET    2   A 7 ILE A 320  TYR A 329  1  O  LYS A 321   N  LEU A 260           
SHEET    3   A 7 GLU A 341  MET A 350 -1  O  PHE A 342   N  CYS A 328           
SHEET    4   A 7 TRP A 417  GLY A 423 -1  O  PHE A 422   N  LEU A 345           
SHEET    5   A 7 LEU A 395  VAL A 402 -1  N  SER A 399   O  GLY A 421           
SHEET    6   A 7 GLY A 385  HIS A 392 -1  N  LEU A 388   O  ALA A 400           
SHEET    7   A 7 LYS A 375  CYS A 381 -1  N  VAL A 377   O  ASP A 389           
SHEET    1   B 3 LEU A 267  PRO A 269  0                                        
SHEET    2   B 3 PHE A 295  LEU A 297 -1  O  CYS A 296   N  ILE A 268           
SHEET    3   B 3 ARG A 290  VAL A 291 -1  N  VAL A 291   O  PHE A 295           
SHEET    1   C 2 TYR A 446  TYR A 447  0                                        
SHEET    2   C 2 ILE A 450  SER A 451 -1  O  ILE A 450   N  TYR A 447           
CISPEP   1 SER A  212    GLY A  213          0       -10.63                     
CISPEP   2 ASP A  318    PRO A  319          0        -3.30                     
CISPEP   3 GLY A  385    ASP A  386          0         8.30                     
CISPEP   4 GLY A  403    PRO A  404          0         3.58                     
SITE     1 AC1  7 ASN A 241  ARG A 439  ALA A 440  ALA A 441                    
SITE     2 AC1  7 ASN A 448  GLY A 449  HOH A 961                               
SITE     1 AC2  7 TYR A 242  LYS A 245  LEU A 246  GLU A 249                    
SITE     2 AC2  7 LEU A 428  LYS A 431  HIS A 432                               
SITE     1 AC3  6 PHE A 253  ASP A 256  ARG A 257  HIS A 369                    
SITE     2 AC3  6 HOH A 936  HOH A1061                                          
SITE     1 AC4  6 ASP A 373  PHE A 374  LYS A 375  HIS A 392                    
SITE     2 AC4  6 GLY A 393  HOH A1093                                          
SITE     1 AC5  7 ASP A 313  MET A 350  GLY A 412  ILE A 413                    
SITE     2 AC5  7 ASP A 414  LYS A 415  HOH A 991                               
SITE     1 AC6  6 GLU A 337  HIS A 338  ASP A 394  LEU A 395                    
SITE     2 AC6  6 GLU A 396  ARG A 426                                          
SITE     1 AC7  5 ARG A 257  ILE A 362  ASP A 365  HOH A 937                    
SITE     2 AC7  5 HOH A1080                                                     
SITE     1 AC8  2 ASP A 373  HIS A 392                                          
SITE     1 AC9  6 TYR A 272  ASN A 307  ARG A 310  LYS A 311                    
SITE     2 AC9  6 GLU A 357  HOH A 984                                          
SITE     1 BC1  4 GLN A 233  ALA A 236  GLU A 237  HOH A1075                    
SITE     1 BC2 23 MET A 300  ALA A 302  LEU A 305  TYR A 306                    
SITE     2 BC2 23 ARG A 330  GLU A 332  LEU A 339  PHE A 342                    
SITE     3 BC2 23 MET A 344  ASN A 346  TYR A 384  GLU A 396                    
SITE     4 BC2 23 LEU A 397  SER A 398  SER A 399  TRP A 417                    
SITE     5 BC2 23 GLY A 419  GLY A 421  GLY A 423  ARG A 426                    
SITE     6 BC2 23 HOH A 912  HOH A1086  HOH A1094                               
SITE     1 BC3  5 ARG A 330  HIS A 338  GLU A 396  ARG A 426                    
SITE     2 BC3  5 HOH A1094                                                     
CRYST1  105.070  105.070   70.262  90.00  90.00 120.00 P 64          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      0.009517  0.005495  0.000000        0.00000                         
SCALE2      0.000000  0.010990  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014232        0.00000