HEADER    HYDROLASE                               02-OCT-06   2IK1              
TITLE     YEAST INORGANIC PYROPHOSPHATASE VARIANT Y93F WITH MAGNESIUM AND       
TITLE    2 PHOSPHATE                                                            
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: INORGANIC PYROPHOSPHATASE;                                 
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: PYROPHOSPHATE PHOSPHO-HYDROLASE, PPASE;                     
COMPND   5 EC: 3.6.1.1;                                                         
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SACCHAROMYCES CEREVISIAE;                       
SOURCE   3 ORGANISM_COMMON: BAKER'S YEAST;                                      
SOURCE   4 ORGANISM_TAXID: 4932;                                                
SOURCE   5 GENE: IPP1;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: HB101;                                     
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PKW9                                      
KEYWDS    INORGANIC PYROPHOSPHATASE, STRUCTURE-FUNCTION, MUTAGENESIS, HYDROLASE 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    E.OKSANEN,A.K.AHONEN,H.TUOMINEN,V.TUOMINEN,R.LAHTI,A.GOLDMAN,         
AUTHOR   2 P.HEIKINHEIMO                                                        
REVDAT   5   30-AUG-23 2IK1    1       REMARK                                   
REVDAT   4   20-OCT-21 2IK1    1       SEQADV LINK                              
REVDAT   3   24-FEB-09 2IK1    1       VERSN                                    
REVDAT   2   06-MAR-07 2IK1    1       REMARK                                   
REVDAT   1   13-FEB-07 2IK1    0                                                
JRNL        AUTH   E.OKSANEN,A.K.AHONEN,H.TUOMINEN,V.TUOMINEN,R.LAHTI,          
JRNL        AUTH 2 A.GOLDMAN,P.HEIKINHEIMO                                      
JRNL        TITL   A COMPLETE STRUCTURAL DESCRIPTION OF THE CATALYTIC CYCLE OF  
JRNL        TITL 2 YEAST PYROPHOSPHATASE.                                       
JRNL        REF    BIOCHEMISTRY                  V.  46  1228 2007              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   17260952                                                     
JRNL        DOI    10.1021/BI0619977                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.70 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.1.24                                        
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) : 1.70                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 19.69                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 64116                          
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) : 0.168                           
REMARK   3   R VALUE            (WORKING SET) : 0.167                           
REMARK   3   FREE R VALUE                     : 0.190                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 3417                            
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) : 1.70                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.74                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 4572                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3100                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 215                          
REMARK   3   BIN FREE R VALUE                    : 0.3560                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4406                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 15                                      
REMARK   3   SOLVENT ATOMS            : 505                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 22.08                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.00000                                              
REMARK   3    B22 (A**2) : 0.01000                                              
REMARK   3    B33 (A**2) : 0.00000                                              
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): 0.096         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.091         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.059         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.780         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.964                         
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):  4528 ; 0.013 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  4006 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  6158 ; 1.536 ; 1.949       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  9418 ; 0.815 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   553 ; 6.557 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   674 ; 0.088 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  4990 ; 0.007 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   846 ; 0.004 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   846 ; 0.222 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  4634 ; 0.245 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  2467 ; 0.083 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   357 ; 0.119 ; 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):     5 ; 0.057 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    37 ; 0.330 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    19 ; 0.189 ; 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):  2781 ; 0.782 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  4517 ; 1.403 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1747 ; 2.306 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1641 ; 3.749 ; 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 : BABINET MODEL WITH 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 2IK1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-OCT-06.                  
REMARK 100 THE DEPOSITION ID IS D_1000039667.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 21-SEP-01                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 6.00                               
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          : RIGAKU                             
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : MULTILAYER                         
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU                             
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : CCP4 (SCALA)                       
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 67570                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.700                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 100.000                            
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 94.4                               
REMARK 200  DATA REDUNDANCY                : 4.100                              
REMARK 200  R MERGE                    (I) : 0.06500                            
REMARK 200  R SYM                      (I) : 0.06500                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 7.9000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.76                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 94.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.34600                            
REMARK 200  R SYM FOR SHELL            (I) : 0.34600                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.200                              
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: 1HUK                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 52.14                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.57                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 16% MPD, 10 MM MGCL2, 1 MM PO4-, PH      
REMARK 280  6.0, VAPOR DIFFUSION, TEMPERATURE 277K, PH 6.00                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,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        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000       46.77050            
REMARK 290   SMTRY3   2  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: 2480 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 23590 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -41.0 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     VAL A   105                                                      
REMARK 465     SER A   106                                                      
REMARK 465     HIS A   107                                                      
REMARK 465     PRO A   108                                                      
REMARK 465     GLU A   109                                                      
REMARK 465     THR A   110                                                      
REMARK 465     LYS A   111                                                      
REMARK 465     ALA A   112                                                      
REMARK 465     VAL A   113                                                      
REMARK 465     SER A   283                                                      
REMARK 465     GLY A   284                                                      
REMARK 465     SER A   285                                                      
REMARK 465     VAL A   286                                                      
REMARK 465     GLY B   284                                                      
REMARK 465     SER B   285                                                      
REMARK 465     VAL B   286                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     GLU A  39    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 176    CD   CE   NZ                                        
REMARK 470     LYS A 238    CB   CG   CD   CE   NZ                              
REMARK 470     LEU A 266    CB   CG   CD1  CD2                                  
REMARK 470     GLU B  39    CB   CG   CD   OE1  OE2                             
REMARK 470     LYS B  73    CG   CD   CE   NZ                                   
REMARK 470     LYS B  74    CG   CD   CE   NZ                                   
REMARK 470     LYS B 167    CG   CD   CE   NZ                                   
REMARK 470     GLU B 200    CG   CD   OE1  OE2                                  
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     ASN B  211   CG                                                  
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    ASN B 211   CG    ASN B 211   OD1    -0.240                       
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    ASP A 173   CB  -  CG  -  OD2 ANGL. DEV. =   5.8 DEGREES          
REMARK 500    ASP B 102   CB  -  CG  -  OD2 ANGL. DEV. =   6.5 DEGREES          
REMARK 500    ASP B 147   CB  -  CG  -  OD2 ANGL. DEV. =   5.7 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    ASP A 236      104.24   -165.76                                   
REMARK 500    SER A 254       97.52   -160.74                                   
REMARK 500    LEU A 266       48.85   -100.12                                   
REMARK 500    ASP B 152       55.96   -149.56                                   
REMARK 500    ASP B 236      101.36   -161.96                                   
REMARK 500    LEU B 247       77.36   -113.79                                   
REMARK 500    SER B 254       98.35   -161.65                                   
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 287  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 115   OD2                                                    
REMARK 620 2 ASP A 120   OD2 169.7                                              
REMARK 620 3 ASP A 152   OD1  87.1  83.6                                        
REMARK 620 4 HOH A 290   O    86.5 103.2 171.2                                  
REMARK 620 5 HOH A 294   O    95.9  88.5  90.1  84.5                            
REMARK 620 6 HOH A 295   O    88.0  87.9  91.4  94.5 176.0                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 288  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 120   OD1                                                    
REMARK 620 2 HOH A 291   O    95.1                                              
REMARK 620 3 HOH A 292   O    81.0  89.8                                        
REMARK 620 4 HOH A 293   O   166.9  91.1  87.5                                  
REMARK 620 5 HOH A 296   O    84.7 173.0  97.1  90.5                            
REMARK 620 6 HOH A 297   O    99.5  90.6 179.3  92.0  82.5                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 287  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP B 115   OD2                                                    
REMARK 620 2 ASP B 120   OD2 171.8                                              
REMARK 620 3 ASP B 152   OD1  89.9  84.3                                        
REMARK 620 4 HOH B 288   O    90.4  95.3  88.2                                  
REMARK 620 5 HOH B 289   O    86.5  88.0  94.1 176.2                            
REMARK 620 6 HOH B 290   O    95.5  90.6 173.5  88.2  89.8                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1WGI   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1E9G   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1E6A   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2IHP   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2IK0   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2IK2   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2IK4   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2IK6   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2IK7   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 2IK9   RELATED DB: PDB                                   
DBREF  2IK1 A    1   286  UNP    P00817   IPYR_YEAST       1    286             
DBREF  2IK1 B    1   286  UNP    P00817   IPYR_YEAST       1    286             
SEQADV 2IK1 PHE A   93  UNP  P00817    TYR    93 ENGINEERED MUTATION            
SEQADV 2IK1 PHE B   93  UNP  P00817    TYR    93 ENGINEERED MUTATION            
SEQRES   1 A  286  THR TYR THR THR ARG GLN ILE GLY ALA LYS ASN THR LEU          
SEQRES   2 A  286  GLU TYR LYS VAL TYR ILE GLU LYS ASP GLY LYS PRO VAL          
SEQRES   3 A  286  SER ALA PHE HIS ASP ILE PRO LEU TYR ALA ASP LYS GLU          
SEQRES   4 A  286  ASN ASN ILE PHE ASN MET VAL VAL GLU ILE PRO ARG TRP          
SEQRES   5 A  286  THR ASN ALA LYS LEU GLU ILE THR LYS GLU GLU THR LEU          
SEQRES   6 A  286  ASN PRO ILE ILE GLN ASP THR LYS LYS GLY LYS LEU ARG          
SEQRES   7 A  286  PHE VAL ARG ASN CYS PHE PRO HIS HIS GLY TYR ILE HIS          
SEQRES   8 A  286  ASN PHE GLY ALA PHE PRO GLN THR TRP GLU ASP PRO ASN          
SEQRES   9 A  286  VAL SER HIS PRO GLU THR LYS ALA VAL GLY ASP ASN ASP          
SEQRES  10 A  286  PRO ILE ASP VAL LEU GLU ILE GLY GLU THR ILE ALA TYR          
SEQRES  11 A  286  THR GLY GLN VAL LYS GLN VAL LYS ALA LEU GLY ILE MET          
SEQRES  12 A  286  ALA LEU LEU ASP GLU GLY GLU THR ASP TRP LYS VAL ILE          
SEQRES  13 A  286  ALA ILE ASP ILE ASN ASP PRO LEU ALA PRO LYS LEU ASN          
SEQRES  14 A  286  ASP ILE GLU ASP VAL GLU LYS TYR PHE PRO GLY LEU LEU          
SEQRES  15 A  286  ARG ALA THR ASN GLU TRP PHE ARG ILE TYR LYS ILE PRO          
SEQRES  16 A  286  ASP GLY LYS PRO GLU ASN GLN PHE ALA PHE SER GLY GLU          
SEQRES  17 A  286  ALA LYS ASN LYS LYS TYR ALA LEU ASP ILE ILE LYS GLU          
SEQRES  18 A  286  THR HIS ASP SER TRP LYS GLN LEU ILE ALA GLY LYS SER          
SEQRES  19 A  286  SER ASP SER LYS GLY ILE ASP LEU THR ASN VAL THR LEU          
SEQRES  20 A  286  PRO ASP THR PRO THR TYR SER LYS ALA ALA SER ASP ALA          
SEQRES  21 A  286  ILE PRO PRO ALA SER LEU LYS ALA ASP ALA PRO ILE ASP          
SEQRES  22 A  286  LYS SER ILE ASP LYS TRP PHE PHE ILE SER GLY SER VAL          
SEQRES   1 B  286  THR TYR THR THR ARG GLN ILE GLY ALA LYS ASN THR LEU          
SEQRES   2 B  286  GLU TYR LYS VAL TYR ILE GLU LYS ASP GLY LYS PRO VAL          
SEQRES   3 B  286  SER ALA PHE HIS ASP ILE PRO LEU TYR ALA ASP LYS GLU          
SEQRES   4 B  286  ASN ASN ILE PHE ASN MET VAL VAL GLU ILE PRO ARG TRP          
SEQRES   5 B  286  THR ASN ALA LYS LEU GLU ILE THR LYS GLU GLU THR LEU          
SEQRES   6 B  286  ASN PRO ILE ILE GLN ASP THR LYS LYS GLY LYS LEU ARG          
SEQRES   7 B  286  PHE VAL ARG ASN CYS PHE PRO HIS HIS GLY TYR ILE HIS          
SEQRES   8 B  286  ASN PHE GLY ALA PHE PRO GLN THR TRP GLU ASP PRO ASN          
SEQRES   9 B  286  VAL SER HIS PRO GLU THR LYS ALA VAL GLY ASP ASN ASP          
SEQRES  10 B  286  PRO ILE ASP VAL LEU GLU ILE GLY GLU THR ILE ALA TYR          
SEQRES  11 B  286  THR GLY GLN VAL LYS GLN VAL LYS ALA LEU GLY ILE MET          
SEQRES  12 B  286  ALA LEU LEU ASP GLU GLY GLU THR ASP TRP LYS VAL ILE          
SEQRES  13 B  286  ALA ILE ASP ILE ASN ASP PRO LEU ALA PRO LYS LEU ASN          
SEQRES  14 B  286  ASP ILE GLU ASP VAL GLU LYS TYR PHE PRO GLY LEU LEU          
SEQRES  15 B  286  ARG ALA THR ASN GLU TRP PHE ARG ILE TYR LYS ILE PRO          
SEQRES  16 B  286  ASP GLY LYS PRO GLU ASN GLN PHE ALA PHE SER GLY GLU          
SEQRES  17 B  286  ALA LYS ASN LYS LYS TYR ALA LEU ASP ILE ILE LYS GLU          
SEQRES  18 B  286  THR HIS ASP SER TRP LYS GLN LEU ILE ALA GLY LYS SER          
SEQRES  19 B  286  SER ASP SER LYS GLY ILE ASP LEU THR ASN VAL THR LEU          
SEQRES  20 B  286  PRO ASP THR PRO THR TYR SER LYS ALA ALA SER ASP ALA          
SEQRES  21 B  286  ILE PRO PRO ALA SER LEU LYS ALA ASP ALA PRO ILE ASP          
SEQRES  22 B  286  LYS SER ILE ASP LYS TRP PHE PHE ILE SER GLY SER VAL          
HET     MG  A 287       1                                                       
HET     MG  A 288       1                                                       
HET    MES  A 289      12                                                       
HET     MG  B 287       1                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID                             
FORMUL   3   MG    3(MG 2+)                                                     
FORMUL   5  MES    C6 H13 N O4 S                                                
FORMUL   7  HOH   *505(H2 O)                                                    
HELIX    1   1 LEU A  164  LEU A  168  5                                   5    
HELIX    2   2 ASP A  170  PHE A  178  1                                   9    
HELIX    3   3 GLY A  180  TYR A  192  1                                  13    
HELIX    4   4 LYS A  193  GLY A  197  5                                   5    
HELIX    5   5 ALA A  204  GLU A  208  5                                   5    
HELIX    6   6 ASN A  211  ALA A  231  1                                  21    
HELIX    7   7 LYS A  255  ALA A  260  1                                   6    
HELIX    8   8 ASP A  273  ASP A  277  5                                   5    
HELIX    9   9 LYS B   38  ASN B   40  5                                   3    
HELIX   10  10 LEU B  164  LEU B  168  5                                   5    
HELIX   11  11 ASP B  170  PHE B  178  1                                   9    
HELIX   12  12 GLY B  180  TYR B  192  1                                  13    
HELIX   13  13 LYS B  193  GLY B  197  5                                   5    
HELIX   14  14 PHE B  205  GLY B  207  5                                   3    
HELIX   15  15 ASN B  211  ALA B  231  1                                  21    
HELIX   16  16 SER B  254  SER B  258  5                                   5    
HELIX   17  17 ASP B  273  ASP B  277  5                                   5    
SHEET    1   A 3 TYR A   2  ILE A   7  0                                        
SHEET    2   A 3 LYS A  16  LYS A  21 -1  O  LYS A  16   N  ILE A   7           
SHEET    3   A 3 LYS A  24  VAL A  26 -1  O  LYS A  24   N  LYS A  21           
SHEET    1   B 4 TYR A   2  ILE A   7  0                                        
SHEET    2   B 4 LYS A  16  LYS A  21 -1  O  LYS A  16   N  ILE A   7           
SHEET    3   B 4 ILE A  68  GLN A  70 -1  O  ILE A  68   N  VAL A  17           
SHEET    4   B 4 LEU A  57  ILE A  59 -1  N  GLU A  58   O  ILE A  69           
SHEET    1   C 7 TYR A  35  ASP A  37  0                                        
SHEET    2   C 7 ILE A  42  ILE A  49 -1  O  ILE A  42   N  ALA A  36           
SHEET    3   C 7 VAL A 134  ASP A 147 -1  O  LYS A 135   N  MET A  45           
SHEET    4   C 7 GLU A 150  ASP A 159 -1  O  ILE A 156   N  LEU A 140           
SHEET    5   C 7 ASP A 120  GLU A 123  1  N  LEU A 122   O  VAL A 155           
SHEET    6   C 7 ASN A  92  ALA A  95 -1  N  ASN A  92   O  GLU A 123           
SHEET    7   C 7 ILE A  42  ILE A  49 -1  N  ILE A  49   O  PHE A  93           
SHEET    1   D 2 THR A  72  LYS A  73  0                                        
SHEET    2   D 2 LYS A  76  LEU A  77 -1  O  LYS A  76   N  LYS A  73           
SHEET    1   E 2 ASN A  82  CYS A  83  0                                        
SHEET    2   E 2 TRP A 279  PHE A 280  1  O  PHE A 280   N  ASN A  82           
SHEET    1   F 4 LYS B  24  VAL B  26  0                                        
SHEET    2   F 4 LYS B  16  LYS B  21 -1  N  ILE B  19   O  VAL B  26           
SHEET    3   F 4 TYR B   2  ALA B   9 -1  N  ARG B   5   O  TYR B  18           
SHEET    4   F 4 SER B 265  LYS B 267  1  O  SER B 265   N  GLN B   6           
SHEET    1   G 7 TYR B  35  ASP B  37  0                                        
SHEET    2   G 7 ILE B  42  ILE B  49 -1  O  ILE B  42   N  ALA B  36           
SHEET    3   G 7 ASN B  92  ALA B  95 -1  O  PHE B  93   N  ILE B  49           
SHEET    4   G 7 ASP B 120  GLU B 123 -1  O  GLU B 123   N  ASN B  92           
SHEET    5   G 7 LYS B 154  ASP B 159  1  O  VAL B 155   N  LEU B 122           
SHEET    6   G 7 VAL B 134  MET B 143 -1  N  LEU B 140   O  ILE B 156           
SHEET    7   G 7 ALA B 209  LYS B 210 -1  O  LYS B 210   N  ILE B 142           
SHEET    1   H 4 TYR B  35  ASP B  37  0                                        
SHEET    2   H 4 ILE B  42  ILE B  49 -1  O  ILE B  42   N  ALA B  36           
SHEET    3   H 4 VAL B 134  MET B 143 -1  O  LYS B 135   N  MET B  45           
SHEET    4   H 4 ALA B 209  LYS B 210 -1  O  LYS B 210   N  ILE B 142           
SHEET    1   I 2 LEU B  57  ILE B  59  0                                        
SHEET    2   I 2 ILE B  68  GLN B  70 -1  O  ILE B  69   N  GLU B  58           
SHEET    1   J 2 THR B  72  LYS B  73  0                                        
SHEET    2   J 2 LYS B  76  LEU B  77 -1  O  LYS B  76   N  LYS B  73           
SHEET    1   K 2 ASN B  82  CYS B  83  0                                        
SHEET    2   K 2 TRP B 279  PHE B 280  1  O  PHE B 280   N  ASN B  82           
SHEET    1   L 2 SER B 106  HIS B 107  0                                        
SHEET    2   L 2 ALA B 112  VAL B 113 -1  O  ALA B 112   N  HIS B 107           
SHEET    1   M 3 GLU B 150  THR B 151  0                                        
SHEET    2   M 3 LEU B 145  ASP B 147 -1  N  ASP B 147   O  GLU B 150           
SHEET    3   M 3 GLN B 202  PHE B 203 -1  O  GLN B 202   N  LEU B 146           
LINK         OD2 ASP A 115                MG    MG A 287     1555   1555  2.06  
LINK         OD2 ASP A 120                MG    MG A 287     1555   1555  2.05  
LINK         OD1 ASP A 120                MG    MG A 288     1555   1555  2.00  
LINK         OD1 ASP A 152                MG    MG A 287     1555   1555  2.12  
LINK        MG    MG A 287                 O   HOH A 290     1555   1555  2.02  
LINK        MG    MG A 287                 O   HOH A 294     1555   1555  2.06  
LINK        MG    MG A 287                 O   HOH A 295     1555   1555  2.11  
LINK        MG    MG A 288                 O   HOH A 291     1555   1555  2.00  
LINK        MG    MG A 288                 O   HOH A 292     1555   1555  2.12  
LINK        MG    MG A 288                 O   HOH A 293     1555   1555  2.02  
LINK        MG    MG A 288                 O   HOH A 296     1555   1555  2.13  
LINK        MG    MG A 288                 O   HOH A 297     1555   1555  2.08  
LINK         OD2 ASP B 115                MG    MG B 287     1555   1555  2.06  
LINK         OD2 ASP B 120                MG    MG B 287     1555   1555  2.07  
LINK         OD1 ASP B 152                MG    MG B 287     1555   1555  2.03  
LINK        MG    MG B 287                 O   HOH B 288     1555   1555  2.15  
LINK        MG    MG B 287                 O   HOH B 289     1555   1555  2.15  
LINK        MG    MG B 287                 O   HOH B 290     1555   1555  2.14  
CISPEP   1 PHE A   84    PRO A   85          0         5.34                     
CISPEP   2 PHE B   84    PRO B   85          0         3.43                     
CRYST1   51.770   93.541   69.439  90.00  99.88  90.00 P 1 21 1      4          
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      0.019316  0.000000  0.003365        0.00000                         
SCALE2      0.000000  0.010691  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014618        0.00000