HEADER    LYASE                                   25-SEP-00   1FX2              
TITLE     STRUCTURAL ANALYSIS OF ADENYLATE CYCLASES FROM TRYPANOSOMA BRUCEI IN  
TITLE    2 THEIR MONOMERIC STATE                                                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RECEPTOR-TYPE ADENYLATE CYCLASE GRESAG 4.1;                
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: CATALYTIC DOMAIN;                                          
COMPND   5 EC: 4.6.1.1;                                                         
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: TRYPANOSOMA BRUCEI;                             
SOURCE   3 ORGANISM_TAXID: 5691;                                                
SOURCE   4 STRAIN: STRAIN 927;                                                  
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET28A                                    
KEYWDS    CAMP, TRYPANOSOMES, ADENYLYL CYCLASES, MONOMER-DIMER, CATALYSIS,      
KEYWDS   2 LYASE                                                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    B.BIEGER,L.-O.ESSEN                                                   
REVDAT   6   07-FEB-24 1FX2    1       REMARK SEQADV                            
REVDAT   5   31-JAN-18 1FX2    1       REMARK                                   
REVDAT   4   04-OCT-17 1FX2    1       REMARK                                   
REVDAT   3   24-FEB-09 1FX2    1       VERSN                                    
REVDAT   2   01-APR-03 1FX2    1       JRNL                                     
REVDAT   1   28-FEB-01 1FX2    0                                                
JRNL        AUTH   B.BIEGER,L.O.ESSEN                                           
JRNL        TITL   STRUCTURAL ANALYSIS OF ADENYLATE CYCLASES FROM TRYPANOSOMA   
JRNL        TITL 2 BRUCEI IN THEIR MONOMERIC STATE.                             
JRNL        REF    EMBO J.                       V.  20   433 2001              
JRNL        REFN                   ISSN 0261-4189                               
JRNL        PMID   11157750                                                     
JRNL        DOI    10.1093/EMBOJ/20.3.433                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.46 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.0                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.46                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 10.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 1440982.240                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 95.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 39779                          
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 SET) : 0.178                           
REMARK   3   FREE R VALUE                     : 0.205                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 2.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1111                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.006                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.46                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.55                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 92.30                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 6135                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2220                       
REMARK   3   BIN FREE R VALUE                    : 0.2640                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 2.60                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 165                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.021                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1856                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 13                                      
REMARK   3   SOLVENT ATOMS            : 272                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 13.10                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 20.10                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 6.32000                                              
REMARK   3    B22 (A**2) : -2.98000                                             
REMARK   3    B33 (A**2) : -3.34000                                             
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 COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.14                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.11                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.16                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.13                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.031                           
REMARK   3   BOND ANGLES            (DEGREES) : 2.500                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 25.30                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 2.260                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 2.960 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 4.230 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 6.060 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 7.560 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.43                                                 
REMARK   3   BSOL        : 68.42                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : DTT.PARAM                                      
REMARK   3  PARAMETER FILE  3  : PARAM.PO4                                      
REMARK   3  PARAMETER FILE  4  : WATER.PARAM                                    
REMARK   3  PARAMETER FILE  5  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : DTT.TOP                                        
REMARK   3  TOPOLOGY FILE  3   : TOP.PO4                                        
REMARK   3  TOPOLOGY FILE  4   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  5   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1FX2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-SEP-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000011974.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 08-DEC-98                          
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               : EMBL/DESY, HAMBURG                 
REMARK 200  BEAMLINE                       : BW7B                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.833                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 40911                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.460                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 10.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.7                               
REMARK 200  DATA REDUNDANCY                : 3.000                              
REMARK 200  R MERGE                    (I) : 0.08200                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 24.7000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.44                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.48                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.50                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.28300                            
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: NULL                         
REMARK 200 SOFTWARE USED: SHARP, SOLOMON                                        
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 44.49                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.22                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 20 MM TRIS/HCL, 1.8-1.9 M AMMONIUM       
REMARK 280  SULFATE, PH 6.5, VAPOR DIFFUSION, TEMPERATURE 18K, TEMPERATURE      
REMARK 280  291.0K                                                              
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       24.80000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       39.44000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       30.03500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       39.44000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       24.80000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       30.03500            
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 300 REMARK: THE BIOLOGICAL ASSEMBLY IN THE CATALYTIC STATE IS A DIMER    
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 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       24.80000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       90.10500            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000        0.00000            
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     ASP A1122    CG   OD1  OD2                                       
REMARK 475                                                                      
REMARK 475 ZERO OCCUPANCY RESIDUES                                              
REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY.             
REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT                
REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;                      
REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE)          
REMARK 475   M RES C  SSEQI                                                     
REMARK 475     GLU A  1036                                                      
REMARK 475     VAL A  1037                                                      
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     ARG A 1092   CD   NE   CZ   NH1  NH2                             
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   OE1  GLN A   992     O    HOH A  1384              2.06            
REMARK 500   CB   LEU A   982     O    HOH A  1277              2.18            
REMARK 500   O2   DTT A  1124     O    HOH A  1158              2.18            
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    CYS A 971   CB    CYS A 971   SG     -0.099                       
REMARK 500    MET A1050   CB    MET A1050   CG      0.366                       
REMARK 500    GLU A1055   CD    GLU A1055   OE2    -0.069                       
REMARK 500    MET A1071   CB    MET A1071   CG      0.232                       
REMARK 500    MET A1071   CG    MET A1071   SD     -0.409                       
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 933   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.4 DEGREES          
REMARK 500    ARG A 993   NE  -  CZ  -  NH1 ANGL. DEV. =   4.0 DEGREES          
REMARK 500    ARG A1014   NE  -  CZ  -  NH1 ANGL. DEV. =   4.1 DEGREES          
REMARK 500    ARG A1014   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.5 DEGREES          
REMARK 500    ASP A1035   N   -  CA  -  C   ANGL. DEV. =  21.2 DEGREES          
REMARK 500    ASP A1042   CB  -  CG  -  OD1 ANGL. DEV. =   5.6 DEGREES          
REMARK 500    MET A1050   CB  -  CG  -  SD  ANGL. DEV. = -22.9 DEGREES          
REMARK 500    MET A1050   CG  -  SD  -  CE  ANGL. DEV. =  14.9 DEGREES          
REMARK 500    ASP A1082   CB  -  CG  -  OD1 ANGL. DEV. =   6.2 DEGREES          
REMARK 500    GLU A1119   N   -  CA  -  C   ANGL. DEV. = -16.7 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    ASN A1017      123.17   -172.86                                   
REMARK 500    ASP A1035      -86.72     74.42                                   
REMARK 500    GLU A1036      -39.04     92.93                                   
REMARK 500    VAL A1037      -21.91    161.92                                   
REMARK 500    THR A1105      -83.27   -112.92                                   
REMARK 500    ARG A1118     -143.15   -103.77                                   
REMARK 500    GLU A1119      141.82    165.11                                   
REMARK 500    PHE A1121      -83.10    -15.61                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    TYR A1101         0.06    SIDE CHAIN                              
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 SO4 A 1123                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DTT A 1124                
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1FX4   RELATED DB: PDB                                   
REMARK 900 1FX4 IS THE STRUCTURE OF THE CATALYTIC DOMAIN OF GRESAG4.3, AN       
REMARK 900 ISOZYME OF GRESAG4.1                                                 
DBREF  1FX2 A  888  1122  UNP    Q99279   CY41_TRYBB     888   1123             
SEQADV 1FX2     A       UNP  Q99279    ILE  1032 DELETION                       
SEQRES   1 A  235  ASN ASN ASN ARG ALA PRO LYS GLU PRO THR ASP PRO VAL          
SEQRES   2 A  235  THR LEU ILE PHE THR ASP ILE GLU SER SER THR ALA LEU          
SEQRES   3 A  235  TRP ALA ALA HIS PRO ASP LEU MET PRO ASP ALA VAL ALA          
SEQRES   4 A  235  ALA HIS HIS ARG MET VAL ARG SER LEU ILE GLY ARG TYR          
SEQRES   5 A  235  LYS CYS TYR GLU VAL LYS THR VAL GLY ASP SER PHE MET          
SEQRES   6 A  235  ILE ALA SER LYS SER PRO PHE ALA ALA VAL GLN LEU ALA          
SEQRES   7 A  235  GLN GLU LEU GLN LEU CYS PHE LEU HIS HIS ASP TRP GLY          
SEQRES   8 A  235  THR ASN ALA LEU ASP ASP SER TYR ARG GLU PHE GLU GLU          
SEQRES   9 A  235  GLN ARG ALA GLU GLY GLU CYS GLU TYR THR PRO PRO THR          
SEQRES  10 A  235  ALA HIS MET ASP PRO GLU VAL TYR SER ARG LEU TRP ASN          
SEQRES  11 A  235  GLY LEU ARG VAL ARG VAL GLY ILE HIS THR GLY LEU CYS          
SEQRES  12 A  235  ASP ILE ARG HIS ASP GLU VAL THR LYS GLY TYR ASP TYR          
SEQRES  13 A  235  TYR GLY ARG THR PRO ASN MET ALA ALA ARG THR GLU SER          
SEQRES  14 A  235  VAL ALA ASN GLY GLY GLN VAL LEU MET THR HIS ALA ALA          
SEQRES  15 A  235  TYR MET SER LEU SER ALA GLU ASP ARG LYS GLN ILE ASP          
SEQRES  16 A  235  VAL THR ALA LEU GLY ASP VAL ALA LEU ARG GLY VAL SER          
SEQRES  17 A  235  ASP PRO VAL LYS MET TYR GLN LEU ASN THR VAL PRO SER          
SEQRES  18 A  235  ARG ASN PHE ALA ALA LEU ARG LEU ASP ARG GLU TYR PHE          
SEQRES  19 A  235  ASP                                                          
HET    SO4  A1123       5                                                       
HET    DTT  A1124       8                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     DTT 2,3-DIHYDROXY-1,4-DITHIOBUTANE                                   
HETSYN     DTT 1,4-DITHIOTHREITOL                                               
FORMUL   2  SO4    O4 S 2-                                                      
FORMUL   3  DTT    C4 H10 O2 S2                                                 
FORMUL   4  HOH   *272(H2 O)                                                    
HELIX    1   1 ASN A  888  ALA A  892  5                                   5    
HELIX    2   2 SER A  909  HIS A  917  1                                   9    
HELIX    3   3 LEU A  920  TYR A  939  1                                  20    
HELIX    4   4 SER A  957  HIS A  975  1                                  19    
HELIX    5   5 ASN A  980  GLU A  997  1                                  18    
HELIX    6   6 ASP A 1008  TRP A 1016  1                                   9    
HELIX    7   7 GLY A 1045  VAL A 1057  1                                  13    
HELIX    8   8 HIS A 1067  SER A 1072  1                                   6    
HELIX    9   9 SER A 1074  GLN A 1080  1                                   7    
SHEET    1   A 7 TYR A 942  VAL A 947  0                                        
SHEET    2   A 7 SER A 950  SER A 955 -1  N  SER A 950   O  VAL A 947           
SHEET    3   A 7 VAL A 900  ILE A 907 -1  O  THR A 901   N  SER A 955           
SHEET    4   A 7 VAL A1021  GLY A1028 -1  N  ARG A1022   O  ASP A 906           
SHEET    5   A 7 VAL A1063  THR A1066  1  N  LEU A1064   O  VAL A1023           
SHEET    6   A 7 VAL A1098  LEU A1103 -1  O  TYR A1101   N  MET A1065           
SHEET    7   A 7 VAL A1083  VAL A1089 -1  O  THR A1084   N  GLN A1102           
SHEET    1   B 2 ASP A1031  HIS A1034  0                                        
SHEET    2   B 2 TYR A1041  TYR A1044 -1  N  ASP A1042   O  ARG A1033           
SITE     1 AC1  8 GLU A 908  SER A 909  ARG A1022  ARG A1115                    
SITE     2 AC1  8 HOH A1136  HOH A1168  HOH A1175  HOH A1385                    
SITE     1 AC2 11 GLN A 969  PHE A 972  LEU A 973  TRP A1016                    
SITE     2 AC2 11 ASN A1017  LEU A1019  ARG A1020  VAL A1021                    
SITE     3 AC2 11 ARG A1109  HOH A1128  HOH A1158                               
CRYST1   49.600   60.070   78.880  90.00  90.00  90.00 P 21 21 21    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      0.020161  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.016647  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012677        0.00000