HEADER    TRANSFERASE                             11-SEP-06   2IBP               
TITLE     CRYSTAL STRUCTURE OF CITRATE SYNTHASE FROM PYROBACULUM AEROPHILUM      
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: CITRATE SYNTHASE;                                           
COMPND   3 CHAIN: A, B;                                                          
COMPND   4 EC: 2.3.3.1;                                                          
COMPND   5 ENGINEERED: YES                                                       
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: PYROBACULUM AEROPHILUM;                          
SOURCE   3 ORGANISM_TAXID: 178306;                                               
SOURCE   4 STRAIN: IM2;                                                          
SOURCE   5 GENE: PAE1689;                                                        
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                  
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                         
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                               
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PETM11                                     
KEYWDS    DISULFIDE BOND, HOMODIMER, CITRATE SYNTHASE, THERMOPHILIC, CATENANE,   
KEYWDS   2 TRANSFERASE                                                           
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    D.R.BOUTZ,T.O.YEATES,D.CASCIO                                          
REVDAT   4   30-AUG-23 2IBP    1       REMARK LINK                               
REVDAT   3   13-JUL-11 2IBP    1       VERSN                                     
REVDAT   2   24-FEB-09 2IBP    1       VERSN                                     
REVDAT   1   15-MAY-07 2IBP    0                                                 
JRNL        AUTH   D.R.BOUTZ,D.CASCIO,J.WHITELEGGE,L.J.PERRY,T.O.YEATES          
JRNL        TITL   DISCOVERY OF A THERMOPHILIC PROTEIN COMPLEX STABILIZED BY     
JRNL        TITL 2 TOPOLOGICALLY INTERLINKED CHAINS.                             
JRNL        REF    J.MOL.BIOL.                   V. 368  1332 2007               
JRNL        REFN                   ISSN 0022-2836                                
JRNL        PMID   17395198                                                      
JRNL        DOI    10.1016/J.JMB.2007.02.078                                     
REMARK   2                                                                       
REMARK   2 RESOLUTION.    1.60 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) : 1.60                            
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 76.47                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 94.3                            
REMARK   3   NUMBER OF REFLECTIONS             : 100651                          
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) : 0.159                            
REMARK   3   R VALUE            (WORKING SET) : 0.158                            
REMARK   3   FREE R VALUE                     : 0.190                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 5286                             
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) : 1.60                          
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.64                          
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 6756                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 87.27                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2360                        
REMARK   3   BIN FREE R VALUE SET COUNT          : 363                           
REMARK   3   BIN FREE R VALUE                    : 0.2820                        
REMARK   3                                                                       
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                     
REMARK   3   PROTEIN ATOMS            : 6528                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                        
REMARK   3   HETEROGEN ATOMS          : 10                                       
REMARK   3   SOLVENT ATOMS            : 808                                      
REMARK   3                                                                       
REMARK   3  B VALUES.                                                            
REMARK   3   FROM WILSON PLOT           (A**2) : 22.90                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 12.83                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                        
REMARK   3    B11 (A**2) : -0.15000                                              
REMARK   3    B22 (A**2) : 0.28000                                               
REMARK   3    B33 (A**2) : -0.13000                                              
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): 0.085          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.086          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.050          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.381          
REMARK   3                                                                       
REMARK   3 CORRELATION COEFFICIENTS.                                             
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.968                          
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.954                          
REMARK   3                                                                       
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT       
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  6822 ; 0.008 ; 0.022        
REMARK   3   BOND LENGTHS OTHERS               (A):  4757 ; 0.001 ; 0.020        
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  9267 ; 1.227 ; 1.966        
REMARK   3   BOND ANGLES OTHERS          (DEGREES): 11513 ; 0.810 ; 3.001        
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   842 ; 3.303 ; 5.000        
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   324 ;31.680 ;22.716        
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  1157 ; 9.834 ;15.000        
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    58 ;11.106 ;15.000        
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   985 ; 0.093 ; 0.200        
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  7619 ; 0.009 ; 0.020        
REMARK   3   GENERAL PLANES OTHERS             (A):  1479 ; 0.001 ; 0.020        
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1709 ; 0.219 ; 0.200        
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  5487 ; 0.205 ; 0.200        
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  3525 ; 0.193 ; 0.200        
REMARK   3   NON-BONDED TORSION OTHERS         (A):  3378 ; 0.088 ; 0.200        
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   679 ; 0.149 ; 0.200        
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL        
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     3 ; 0.105 ; 0.200        
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL        
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    18 ; 0.151 ; 0.200        
REMARK   3   SYMMETRY VDW OTHERS               (A):    74 ; 0.282 ; 0.200        
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    32 ; 0.199 ; 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):  5377 ; 4.306 ; 2.000        
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  1647 ; 0.968 ; 2.000        
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  6632 ; 4.306 ; 3.000        
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL        
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  3216 ; 5.360 ; 2.000        
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL        
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  2620 ; 7.403 ; 3.000        
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   : 1.40                                           
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 2IBP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                          
REMARK 100                                                                       
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-SEP-06.                   
REMARK 100 THE DEPOSITION ID IS D_1000039384.                                    
REMARK 200                                                                       
REMARK 200 EXPERIMENTAL DETAILS                                                  
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                   
REMARK 200  DATE OF DATA COLLECTION        : 05-DEC-05                           
REMARK 200  TEMPERATURE           (KELVIN) : 100                                 
REMARK 200  PH                             : 6.5                                 
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                   
REMARK 200                                                                       
REMARK 200  SYNCHROTRON              (Y/N) : Y                                   
REMARK 200  RADIATION SOURCE               : ALS                                 
REMARK 200  BEAMLINE                       : 8.2.2                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                                
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                   
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.00000                             
REMARK 200  MONOCHROMATOR                  : SAGITALLY FOCUSED SI(111)           
REMARK 200  OPTICS                         : MIRRORS                             
REMARK 200                                                                       
REMARK 200  DETECTOR TYPE                  : CCD                                 
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                               
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                           
REMARK 200                                                                       
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 107121                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                               
REMARK 200  RESOLUTION RANGE LOW       (A) : 76.470                              
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                               
REMARK 200                                                                       
REMARK 200 OVERALL.                                                              
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.5                                
REMARK 200  DATA REDUNDANCY                : 6.900                               
REMARK 200  R MERGE                    (I) : NULL                                
REMARK 200  R SYM                      (I) : 0.08500                             
REMARK 200   FOR THE DATA SET  : 21.2000                             
REMARK 200                                                                       
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.66                      
REMARK 200  COMPLETENESS FOR SHELL     (%) : 90.2                                
REMARK 200  DATA REDUNDANCY IN SHELL       : 5.80                                
REMARK 200  R MERGE FOR SHELL          (I) : NULL                                
REMARK 200  R SYM FOR SHELL            (I) : 0.68600                             
REMARK 200   FOR SHELL         : 3.200                               
REMARK 200                                                                       
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                               
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT         
REMARK 200 SOFTWARE USED: PHASER                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 1VGP                                        
REMARK 200                                                                       
REMARK 200 REMARK: NULL                                                          
REMARK 280                                                                       
REMARK 280 CRYSTAL                                                               
REMARK 280 SOLVENT CONTENT, VS   (%): 45.99                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.28                      
REMARK 280                                                                       
REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG 8000, 0.1M SODIUM CACODYLATE      
REMARK 280  TRIHYDRATE PH 6.5, 0.2M MAGNESIUM ACETATE TETRAHYDRATE, VAPOR        
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 297K                            
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                             
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                        
REMARK 290                                                                       
REMARK 290      SYMOP   SYMMETRY                                                 
REMARK 290     NNNMMM   OPERATOR                                                 
REMARK 290       1555   X,Y,Z                                                    
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                          
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                          
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                          
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       32.20900             
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       73.16550             
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       44.90150             
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       73.16550             
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       32.20900             
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       44.90150             
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000             
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: 10950 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 30120 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -81.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                   
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000             
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000             
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000             
REMARK 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     SER A     2                                                       
REMARK 465     MET B     1                                                       
REMARK 465     SER B     2                                                       
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    LYS A 140     -160.32   -118.62                                    
REMARK 500    HIS A 214       72.93   -159.85                                    
REMARK 500    GLU A 215     -135.61     54.88                                    
REMARK 500    ASN A 385       69.32   -156.51                                    
REMARK 500    LYS B 140     -162.54   -116.39                                    
REMARK 500    HIS B 214      114.67   -171.81                                    
REMARK 500    GLU B 215     -161.62     55.65                                    
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 904  MG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 HOH A1064   O                                                       
REMARK 620 2 HOH A1167   O    93.8                                               
REMARK 620 3 HOH A1299   O    93.3 165.6                                         
REMARK 620 4 HOH A1300   O   172.1  89.8  84.8                                   
REMARK 620 5 HOH A1301   O    82.3  97.3  96.1  90.2                             
REMARK 620 6 HOH A1302   O    92.9  77.6  89.5  94.8 172.8                       
REMARK 620 N                    1     2     3     4     5                        
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              MG B 903  MG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 HOH B 914   O                                                       
REMARK 620 2 HOH B1177   O    93.3                                               
REMARK 620 3 HOH B1202   O    98.5 167.6                                         
REMARK 620 4 HOH B1283   O   108.9  83.5  96.0                                   
REMARK 620 5 HOH B1284   O    77.2  86.3  92.7 168.4                             
REMARK 620 N                    1     2     3     4                              
REMARK 800                                                                       
REMARK 800 SITE                                                                  
REMARK 800 SITE_IDENTIFIER: AC1                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT B 901                  
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC2                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 902                  
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC3                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 903                   
REMARK 800                                                                       
REMARK 800 SITE_IDENTIFIER: AC4                                                  
REMARK 800 EVIDENCE_CODE: SOFTWARE                                               
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 904                   
DBREF  2IBP A    1   409  UNP    Q8ZWP2   Q8ZWP2_PYRAE     1    409              
DBREF  2IBP B    1   409  UNP    Q8ZWP2   Q8ZWP2_PYRAE     1    409              
SEQRES   1 A  409  MET SER GLU GLN THR VAL GLN VAL LYS THR THR GLY LYS           
SEQRES   2 A  409  ILE LEU GLN SER PRO CYS GLY PRO ILE ILE HIS GLY LEU           
SEQRES   3 A  409  GLU ASP VAL LEU ILE LYS SER THR SER ILE SER ASP ILE           
SEQRES   4 A  409  ASP GLY GLU LYS GLY ILE LEU TRP TYR ARG GLY TYR ARG           
SEQRES   5 A  409  ILE GLU GLU LEU ALA ARG LEU SER THR TYR GLU GLU VAL           
SEQRES   6 A  409  SER TYR LEU ILE LEU TYR GLY ARG LEU PRO THR LYS ARG           
SEQRES   7 A  409  GLU LEU GLU ASP TYR ILE ASN ARG MET LYS LYS TYR ARG           
SEQRES   8 A  409  GLU LEU HIS PRO ALA THR VAL GLU VAL ILE ARG ASN LEU           
SEQRES   9 A  409  ALA LYS ALA HIS PRO MET PHE ALA LEU GLU ALA ALA VAL           
SEQRES  10 A  409  ALA ALA GLU GLY ALA TYR ASP GLU ASP ASN GLN LYS LEU           
SEQRES  11 A  409  ILE GLU ALA LEU SER VAL GLY ARG TYR LYS ALA GLU GLU           
SEQRES  12 A  409  LYS GLU LEU ALA TYR ARG ILE ALA GLU LYS LEU VAL ALA           
SEQRES  13 A  409  LYS MET PRO THR ILE VAL ALA TYR HIS TYR ARG PHE SER           
SEQRES  14 A  409  ARG GLY LEU GLU VAL VAL ARG PRO ARG ASP ASP LEU GLY           
SEQRES  15 A  409  HIS ALA ALA ASN PHE LEU TYR MET MET PHE GLY ARG GLU           
SEQRES  16 A  409  PRO ASP PRO LEU ALA SER ARG GLY ILE ASP LEU TYR LEU           
SEQRES  17 A  409  ILE LEU HIS ALA ASP HIS GLU VAL PRO ALA SER THR PHE           
SEQRES  18 A  409  ALA ALA HIS VAL VAL ALA SER THR LEU SER ASP LEU TYR           
SEQRES  19 A  409  SER SER VAL ALA ALA ALA ILE ALA ALA LEU LYS GLY PRO           
SEQRES  20 A  409  LEU HIS GLY GLY ALA ASN GLU MET ALA VAL ARG ASN TYR           
SEQRES  21 A  409  LEU GLU ILE GLY THR PRO ALA LYS ALA LYS GLU ILE VAL           
SEQRES  22 A  409  GLU ALA ALA THR LYS PRO GLY GLY PRO LYS LEU MET GLY           
SEQRES  23 A  409  VAL GLY HIS ARG VAL TYR LYS ALA TYR ASP PRO ARG ALA           
SEQRES  24 A  409  LYS ILE PHE LYS GLU PHE SER ARG ASP TYR VAL ALA LYS           
SEQRES  25 A  409  PHE GLY ASP PRO GLN ASN LEU PHE ALA ILE ALA SER ALA           
SEQRES  26 A  409  ILE GLU GLN GLU VAL LEU SER HIS PRO TYR PHE GLN GLN           
SEQRES  27 A  409  ARG LYS LEU TYR PRO ASN VAL ASP PHE TRP SER GLY ILE           
SEQRES  28 A  409  ALA PHE TYR TYR MET GLY ILE PRO TYR GLU TYR PHE THR           
SEQRES  29 A  409  PRO ILE PHE ALA MET SER ARG VAL VAL GLY TRP VAL ALA           
SEQRES  30 A  409  HIS VAL LEU GLU TYR TRP GLU ASN ASN ARG ILE PHE ARG           
SEQRES  31 A  409  PRO ARG ALA CYS TYR ILE GLY PRO HIS ASP LEU GLN TYR           
SEQRES  32 A  409  ILE PRO LEU GLU GLN ARG                                       
SEQRES   1 B  409  MET SER GLU GLN THR VAL GLN VAL LYS THR THR GLY LYS           
SEQRES   2 B  409  ILE LEU GLN SER PRO CYS GLY PRO ILE ILE HIS GLY LEU           
SEQRES   3 B  409  GLU ASP VAL LEU ILE LYS SER THR SER ILE SER ASP ILE           
SEQRES   4 B  409  ASP GLY GLU LYS GLY ILE LEU TRP TYR ARG GLY TYR ARG           
SEQRES   5 B  409  ILE GLU GLU LEU ALA ARG LEU SER THR TYR GLU GLU VAL           
SEQRES   6 B  409  SER TYR LEU ILE LEU TYR GLY ARG LEU PRO THR LYS ARG           
SEQRES   7 B  409  GLU LEU GLU ASP TYR ILE ASN ARG MET LYS LYS TYR ARG           
SEQRES   8 B  409  GLU LEU HIS PRO ALA THR VAL GLU VAL ILE ARG ASN LEU           
SEQRES   9 B  409  ALA LYS ALA HIS PRO MET PHE ALA LEU GLU ALA ALA VAL           
SEQRES  10 B  409  ALA ALA GLU GLY ALA TYR ASP GLU ASP ASN GLN LYS LEU           
SEQRES  11 B  409  ILE GLU ALA LEU SER VAL GLY ARG TYR LYS ALA GLU GLU           
SEQRES  12 B  409  LYS GLU LEU ALA TYR ARG ILE ALA GLU LYS LEU VAL ALA           
SEQRES  13 B  409  LYS MET PRO THR ILE VAL ALA TYR HIS TYR ARG PHE SER           
SEQRES  14 B  409  ARG GLY LEU GLU VAL VAL ARG PRO ARG ASP ASP LEU GLY           
SEQRES  15 B  409  HIS ALA ALA ASN PHE LEU TYR MET MET PHE GLY ARG GLU           
SEQRES  16 B  409  PRO ASP PRO LEU ALA SER ARG GLY ILE ASP LEU TYR LEU           
SEQRES  17 B  409  ILE LEU HIS ALA ASP HIS GLU VAL PRO ALA SER THR PHE           
SEQRES  18 B  409  ALA ALA HIS VAL VAL ALA SER THR LEU SER ASP LEU TYR           
SEQRES  19 B  409  SER SER VAL ALA ALA ALA ILE ALA ALA LEU LYS GLY PRO           
SEQRES  20 B  409  LEU HIS GLY GLY ALA ASN GLU MET ALA VAL ARG ASN TYR           
SEQRES  21 B  409  LEU GLU ILE GLY THR PRO ALA LYS ALA LYS GLU ILE VAL           
SEQRES  22 B  409  GLU ALA ALA THR LYS PRO GLY GLY PRO LYS LEU MET GLY           
SEQRES  23 B  409  VAL GLY HIS ARG VAL TYR LYS ALA TYR ASP PRO ARG ALA           
SEQRES  24 B  409  LYS ILE PHE LYS GLU PHE SER ARG ASP TYR VAL ALA LYS           
SEQRES  25 B  409  PHE GLY ASP PRO GLN ASN LEU PHE ALA ILE ALA SER ALA           
SEQRES  26 B  409  ILE GLU GLN GLU VAL LEU SER HIS PRO TYR PHE GLN GLN           
SEQRES  27 B  409  ARG LYS LEU TYR PRO ASN VAL ASP PHE TRP SER GLY ILE           
SEQRES  28 B  409  ALA PHE TYR TYR MET GLY ILE PRO TYR GLU TYR PHE THR           
SEQRES  29 B  409  PRO ILE PHE ALA MET SER ARG VAL VAL GLY TRP VAL ALA           
SEQRES  30 B  409  HIS VAL LEU GLU TYR TRP GLU ASN ASN ARG ILE PHE ARG           
SEQRES  31 B  409  PRO ARG ALA CYS TYR ILE GLY PRO HIS ASP LEU GLN TYR           
SEQRES  32 B  409  ILE PRO LEU GLU GLN ARG                                       
HET    ACT  A 902       4                                                        
HET     MG  A 904       1                                                        
HET    ACT  B 901       4                                                        
HET     MG  B 903       1                                                        
HETNAM     ACT ACETATE ION                                                       
HETNAM      MG MAGNESIUM ION                                                     
FORMUL   3  ACT    2(C2 H3 O2 1-)                                                
FORMUL   4   MG    2(MG 2+)                                                      
FORMUL   7  HOH   *808(H2 O)                                                     
HELIX    1   1 GLY A   25  GLU A   27  5                                   3     
HELIX    2   2 ILE A   53  SER A   60  1                                   8     
HELIX    3   3 THR A   61  GLY A   72  1                                  12     
HELIX    4   4 THR A   76  ARG A   91  1                                  16     
HELIX    5   5 HIS A   94  LEU A  104  1                                  11     
HELIX    6   6 HIS A  108  ASP A  124  1                                  17     
HELIX    7   7 ASP A  124  VAL A  136  1                                  13     
HELIX    8   8 LYS A  140  ARG A  170  1                                  31     
HELIX    9   9 GLY A  182  GLY A  193  1                                  12     
HELIX   10  10 ASP A  197  HIS A  211  1                                  15     
HELIX   11  11 PRO A  217  SER A  228  1                                  12     
HELIX   12  12 ASP A  232  LYS A  245  1                                  14     
HELIX   13  13 GLY A  251  GLY A  264  1                                  14     
HELIX   14  14 THR A  265  ALA A  267  5                                   3     
HELIX   15  15 LYS A  268  THR A  277  1                                  10     
HELIX   16  16 ASP A  296  GLY A  314  1                                  19     
HELIX   17  17 ASN A  318  HIS A  333  1                                  16     
HELIX   18  18 HIS A  333  ARG A  339  1                                   7     
HELIX   19  19 ASN A  344  TRP A  348  5                                   5     
HELIX   20  20 SER A  349  GLY A  357  1                                   9     
HELIX   21  21 PRO A  359  GLU A  361  5                                   3     
HELIX   22  22 TYR A  362  TRP A  383  1                                  22     
HELIX   23  23 GLU A  384  ASN A  386  5                                   3     
HELIX   24  24 PRO A  405  ARG A  409  5                                   5     
HELIX   25  25 GLY B   25  GLU B   27  5                                   3     
HELIX   26  26 ILE B   53  SER B   60  1                                   8     
HELIX   27  27 THR B   61  GLY B   72  1                                  12     
HELIX   28  28 THR B   76  ARG B   91  1                                  16     
HELIX   29  29 HIS B   94  LEU B  104  1                                  11     
HELIX   30  30 HIS B  108  ASP B  124  1                                  17     
HELIX   31  31 ASP B  124  VAL B  136  1                                  13     
HELIX   32  32 LYS B  140  ARG B  170  1                                  31     
HELIX   33  33 GLY B  182  GLY B  193  1                                  12     
HELIX   34  34 ASP B  197  HIS B  211  1                                  15     
HELIX   35  35 PRO B  217  SER B  228  1                                  12     
HELIX   36  36 ASP B  232  LYS B  245  1                                  14     
HELIX   37  37 GLY B  251  GLY B  264  1                                  14     
HELIX   38  38 THR B  265  ALA B  267  5                                   3     
HELIX   39  39 LYS B  268  ALA B  276  1                                   9     
HELIX   40  40 ASP B  296  GLY B  314  1                                  19     
HELIX   41  41 ASN B  318  HIS B  333  1                                  16     
HELIX   42  42 HIS B  333  ARG B  339  1                                   7     
HELIX   43  43 ASN B  344  TRP B  348  5                                   5     
HELIX   44  44 SER B  349  GLY B  357  1                                   9     
HELIX   45  45 PRO B  359  GLU B  361  5                                   3     
HELIX   46  46 TYR B  362  TRP B  383  1                                  22     
HELIX   47  47 GLU B  384  ASN B  386  5                                   3     
HELIX   48  48 PRO B  405  ARG B  409  5                                   5     
SHEET    1   A 2 GLN A   4  THR A  10  0                                         
SHEET    2   A 2 GLN B   4  THR B  10 -1  O  VAL B   6   N  VAL A   8            
SHEET    1   B 2 ILE A  14  LEU A  15  0                                         
SHEET    2   B 2 ILE A  22  ILE A  23 -1  O  ILE A  22   N  LEU A  15            
SHEET    1   C 2 LEU A  30  THR A  34  0                                         
SHEET    2   C 2 ARG B 392  TYR B 395  1  O  CYS B 394   N  THR A  34            
SHEET    1   D 3 SER A  37  ASP A  40  0                                         
SHEET    2   D 3 ILE A  45  TYR A  48 -1  O  ILE A  45   N  ASP A  40            
SHEET    3   D 3 TYR A  51  ARG A  52 -1  O  TYR A  51   N  TYR A  48            
SHEET    1   E 2 ARG A 392  TYR A 395  0                                         
SHEET    2   E 2 LEU B  30  THR B  34  1  O  THR B  34   N  CYS A 394            
SHEET    1   F 2 ILE B  14  LEU B  15  0                                         
SHEET    2   F 2 ILE B  22  ILE B  23 -1  O  ILE B  22   N  LEU B  15            
SHEET    1   G 3 SER B  37  ASP B  40  0                                         
SHEET    2   G 3 ILE B  45  TYR B  48 -1  O  ILE B  45   N  ASP B  40            
SHEET    3   G 3 TYR B  51  ARG B  52 -1  O  TYR B  51   N  TYR B  48            
SSBOND   1 CYS A   19    CYS A  394                          1555   1555  2.06   
SSBOND   2 CYS B   19    CYS B  394                          1555   1555  2.07   
LINK        MG    MG A 904                 O   HOH A1064     1555   1555  2.13   
LINK        MG    MG A 904                 O   HOH A1167     1555   1555  2.13   
LINK        MG    MG A 904                 O   HOH A1299     1555   1555  2.02   
LINK        MG    MG A 904                 O   HOH A1300     1555   1555  2.12   
LINK        MG    MG A 904                 O   HOH A1301     1555   1555  1.97   
LINK        MG    MG A 904                 O   HOH A1302     1555   1555  1.96   
LINK        MG    MG B 903                 O   HOH B 914     1555   1555  1.81   
LINK        MG    MG B 903                 O   HOH B1177     1555   1555  2.24   
LINK        MG    MG B 903                 O   HOH B1202     1555   1555  2.25   
LINK        MG    MG B 903                 O   HOH B1283     1555   1555  2.01   
LINK        MG    MG B 903                 O   HOH B1284     1555   1555  2.16   
CISPEP   1 PRO A  279    GLY A  280          0         0.09                      
CISPEP   2 GLY A  280    GLY A  281          0         0.05                      
CISPEP   3 GLY A  281    PRO A  282          0        -1.81                      
SITE     1 AC1  4 PRO B 359  TYR B 360  HOH B1246  HOH B1271                     
SITE     1 AC2  3 PRO A 359  TYR A 360  HOH A 928                                
SITE     1 AC3  7 GLU B 304  ASP B 308  HOH B 914  HOH B1177                     
SITE     2 AC3  7 HOH B1202  HOH B1283  HOH B1284                                
SITE     1 AC4  7 ASP A 308  HOH A1064  HOH A1167  HOH A1299                     
SITE     2 AC4  7 HOH A1300  HOH A1301  HOH A1302                                
CRYST1   64.418   89.803  146.331  90.00  90.00  90.00 P 21 21 21    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      0.015524  0.000000  0.000000        0.00000                          
SCALE2      0.000000  0.011135  0.000000        0.00000                          
SCALE3      0.000000  0.000000  0.006834        0.00000                          
END