PDB Short entry for 1SC4
HEADER    HYDROLASE                               11-FEB-04   1SC4              
TITLE     CRYSTAL STRUCTURE OF THE HUMAN CASPASE-1 C285A MUTANT AFTER REMOVAL OF
TITLE    2 MALONATE                                                             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: INTERLEUKIN-1 BETA CONVERTASE;                             
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: INTERLEUKIN-1 BETA CONVERTASE P20;                         
COMPND   5 SYNONYM: IL-1BC, IL-1 BETA CONVERTING ENZYME, ICE, INTERLEUKIN-1 BETA
COMPND   6 CONVERTING ENZYME, P45, CASPASE-1, CASP-1;                           
COMPND   7 EC: 3.4.22.36;                                                       
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MUTATION: YES;                                                       
COMPND  10 MOL_ID: 2;                                                           
COMPND  11 MOLECULE: INTERLEUKIN-1 BETA CONVERTASE;                             
COMPND  12 CHAIN: B;                                                            
COMPND  13 FRAGMENT: INTERLEUKIN-1 BETA CONVERTASE P10;                         
COMPND  14 SYNONYM: IL-1BC, IL-1 BETA CONVERTING ENZYME, ICE, INTERLEUKIN-1 BETA
COMPND  15 CONVERTING ENZYME, P45, CASPASE-1, CASP-1;                           
COMPND  16 EC: 3.4.22.36;                                                       
COMPND  17 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: CASP1, IL1BC, IL1BCE;                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3) CODON+;                          
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PRSET;                                    
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  13 ORGANISM_COMMON: HUMAN;                                              
SOURCE  14 ORGANISM_TAXID: 9606;                                                
SOURCE  15 GENE: CASP1, IL1BC, IL1BCE;                                          
SOURCE  16 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  17 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  18 EXPRESSION_SYSTEM_STRAIN: BL21(DE3) CODON+;                          
SOURCE  19 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  20 EXPRESSION_SYSTEM_PLASMID: PRSET                                     
KEYWDS    CASPASE-1 AFTER REMOVAL OF MALONATE, HYDROLASE                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.J.ROMANOWSKI,J.M.SCHEER,T.O'BRIEN,R.S.MCDOWELL                      
REVDAT   5   23-AUG-23 1SC4    1       REMARK                                   
REVDAT   4   27-OCT-21 1SC4    1       SEQADV                                   
REVDAT   3   13-JUL-11 1SC4    1       VERSN                                    
REVDAT   2   24-FEB-09 1SC4    1       VERSN                                    
REVDAT   1   10-AUG-04 1SC4    0                                                
JRNL        AUTH   M.J.ROMANOWSKI,J.M.SCHEER,T.O'BRIEN,R.S.MCDOWELL             
JRNL        TITL   CRYSTAL STRUCTURES OF A LIGAND-FREE AND MALONATE-BOUND HUMAN 
JRNL        TITL 2 CASPASE-1: IMPLICATIONS FOR THE MECHANISM OF SUBSTRATE       
JRNL        TITL 3 BINDING.                                                     
JRNL        REF    STRUCTURE                     V.  12  1361 2004              
JRNL        REFN                   ISSN 0969-2126                               
JRNL        PMID   15296730                                                     
JRNL        DOI    10.1016/J.STR.2004.05.010                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.1.19                                        
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 95.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 15873                          
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) : 0.223                           
REMARK   3   R VALUE            (WORKING SET) : 0.221                           
REMARK   3   FREE R VALUE                     : 0.258                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 833                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 15                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.10                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.17                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1225                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2640                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 59                           
REMARK   3   BIN FREE R VALUE                    : 0.2630                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1956                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 152                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 23.58                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.06000                                              
REMARK   3    B22 (A**2) : 0.06000                                              
REMARK   3    B33 (A**2) : -0.12000                                             
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): 0.255         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.204         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.158         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 6.070         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.919                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.886                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1993 ; 0.006 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2682 ; 0.911 ; 1.950       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   243 ; 5.426 ; 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):   299 ; 0.058 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1482 ; 0.002 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   878 ; 0.161 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   129 ; 0.091 ; 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):    67 ; 0.137 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    12 ; 0.095 ; 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):  1227 ; 1.598 ; 2.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1990 ; 2.763 ; 5.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   766 ; 1.662 ; 2.500       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   692 ; 2.711 ; 5.000       
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: NULL                                      
REMARK   4                                                                      
REMARK   4 1SC4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-FEB-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000021591.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-JUL-03                          
REMARK 200  TEMPERATURE           (KELVIN) : 180                                
REMARK 200  PH                             : 7                                  
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 RUH3R                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IV                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : CRYSTALCLEAR (MSC/RIGAKU)          
REMARK 200  DATA SCALING SOFTWARE          : D*TREK                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 17527                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.3                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.11000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.17                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 78.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.29700                            
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: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 1RWN                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 47.82                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.36                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 2 M SODIUM MALONATE, VAPOR DIFFUSION,    
REMARK 280  HANGING DROP, TEMPERATURE 274K. MALONATE-BOUND ENZYME CRYSTALS      
REMARK 280  WERE TRANSFERRED INTO MOTHER LIQUOR COMPOSED OF 0.1 M PIPES PH 6,   
REMARK 280  88 MM (NH4)2SO4, 25% PEG 2000 MME, 10 MM DTT, 3 MM NAN3 AND 2       
REMARK 280  MM MGCL2, AND SOAKED FOR 2 DAYS TO REMOVE MALONATE., PH 7           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -Y+1/2,X+1/2,Z+3/4                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+1/4                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+3/4                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+1/4                                     
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-Z+1/2                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       71.57900            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       31.49100            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       31.49100            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000      107.36850            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       31.49100            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       31.49100            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       35.78950            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       31.49100            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       31.49100            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000      107.36850            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       31.49100            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       31.49100            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       35.78950            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       71.57900            
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: HETEROTETRAMER (DIMER OF TWO HETERODIMERS). EACH             
REMARK 300 HETERODIMER IS REPRESENTED BY CHAINS A (THE P20 SUBUNIT) AND B (THE  
REMARK 300 P10 SUBUNIT) OF HUMAN CASPASE-1.                                     
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 14810 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 20460 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -76.0 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 350   BIOMT1   2  0.000000 -1.000000  0.000000      125.96400            
REMARK 350   BIOMT2   2 -1.000000  0.000000  0.000000      125.96400            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       71.57900            
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     ASN A   120                                                      
REMARK 465     PRO A   121                                                      
REMARK 465     ALA A   122                                                      
REMARK 465     MET A   123                                                      
REMARK 465     PRO A   124                                                      
REMARK 465     THR A   125                                                      
REMARK 465     SER A   126                                                      
REMARK 465     SER A   127                                                      
REMARK 465     GLY A   128                                                      
REMARK 465     SER A   129                                                      
REMARK 465     GLU A   130                                                      
REMARK 465     GLY A   131                                                      
REMARK 465     VAL B   338                                                      
REMARK 465     SER B   339                                                      
REMARK 465     TRP B   340                                                      
REMARK 465     ARG B   341                                                      
REMARK 465     HIS B   342                                                      
REMARK 465     PRO B   343                                                      
REMARK 465     THR B   344                                                      
REMARK 465     MET B   345                                                      
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 228   CB  -  CG  -  OD2 ANGL. DEV. =   5.6 DEGREES          
REMARK 500    ASP A 254   CB  -  CG  -  OD2 ANGL. DEV. =   5.6 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    SER A 149      -87.03    -65.02                                   
REMARK 500    PRO B 335      154.39    -49.21                                   
REMARK 500    MET B 386       75.34   -151.02                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1SC1   RELATED DB: PDB                                   
REMARK 900 ACTIVE-SITE LIGAND-FREE CASPASE-1                                    
REMARK 900 RELATED ID: 1SC3   RELATED DB: PDB                                   
REMARK 900 MALONATE-BOUND CASPASE-1                                             
DBREF  1SC4 A  120   297  UNP    P29466   CASP1_HUMAN    120    297             
DBREF  1SC4 B  317   404  UNP    P29466   CASP1_HUMAN    317    404             
SEQADV 1SC4 ALA A  285  UNP  P29466    CYS   285 ENGINEERED MUTATION            
SEQRES   1 A  178  ASN PRO ALA MET PRO THR SER SER GLY SER GLU GLY ASN          
SEQRES   2 A  178  VAL LYS LEU CYS SER LEU GLU GLU ALA GLN ARG ILE TRP          
SEQRES   3 A  178  LYS GLN LYS SER ALA GLU ILE TYR PRO ILE MET ASP LYS          
SEQRES   4 A  178  SER SER ARG THR ARG LEU ALA LEU ILE ILE CYS ASN GLU          
SEQRES   5 A  178  GLU PHE ASP SER ILE PRO ARG ARG THR GLY ALA GLU VAL          
SEQRES   6 A  178  ASP ILE THR GLY MET THR MET LEU LEU GLN ASN LEU GLY          
SEQRES   7 A  178  TYR SER VAL ASP VAL LYS LYS ASN LEU THR ALA SER ASP          
SEQRES   8 A  178  MET THR THR GLU LEU GLU ALA PHE ALA HIS ARG PRO GLU          
SEQRES   9 A  178  HIS LYS THR SER ASP SER THR PHE LEU VAL PHE MET SER          
SEQRES  10 A  178  HIS GLY ILE ARG GLU GLY ILE CYS GLY LYS LYS HIS SER          
SEQRES  11 A  178  GLU GLN VAL PRO ASP ILE LEU GLN LEU ASN ALA ILE PHE          
SEQRES  12 A  178  ASN MET LEU ASN THR LYS ASN CYS PRO SER LEU LYS ASP          
SEQRES  13 A  178  LYS PRO LYS VAL ILE ILE ILE GLN ALA ALA ARG GLY ASP          
SEQRES  14 A  178  SER PRO GLY VAL VAL TRP PHE LYS ASP                          
SEQRES   1 B   88  ALA ILE LYS LYS ALA HIS ILE GLU LYS ASP PHE ILE ALA          
SEQRES   2 B   88  PHE CYS SER SER THR PRO ASP ASN VAL SER TRP ARG HIS          
SEQRES   3 B   88  PRO THR MET GLY SER VAL PHE ILE GLY ARG LEU ILE GLU          
SEQRES   4 B   88  HIS MET GLN GLU TYR ALA CYS SER CYS ASP VAL GLU GLU          
SEQRES   5 B   88  ILE PHE ARG LYS VAL ARG PHE SER PHE GLU GLN PRO ASP          
SEQRES   6 B   88  GLY ARG ALA GLN MET PRO THR THR GLU ARG VAL THR LEU          
SEQRES   7 B   88  THR ARG CYS PHE TYR LEU PHE PRO GLY HIS                      
FORMUL   3  HOH   *152(H2 O)                                                    
HELIX    1   1 SER A  137  LYS A  148  1                                  12    
HELIX    2   2 GLY A  181  LEU A  196  1                                  16    
HELIX    3   3 THR A  207  HIS A  220  1                                  14    
HELIX    4   4 ARG A  221  SER A  227  5                                   7    
HELIX    5   5 LEU A  258  ASN A  266  1                                   9    
HELIX    6   6 CYS A  270  LYS A  274  5                                   5    
HELIX    7   7 SER B  347  ALA B  361  1                                  15    
HELIX    8   8 ASP B  365  PHE B  377  1                                  13    
SHEET    1   A 6 SER A 199  LYS A 204  0                                        
SHEET    2   A 6 LEU A 164  CYS A 169  1  N  ILE A 167   O  ASP A 201           
SHEET    3   A 6 THR A 230  HIS A 237  1  O  VAL A 233   N  LEU A 166           
SHEET    4   A 6 LYS A 278  ALA A 285  1  O  ILE A 281   N  PHE A 234           
SHEET    5   A 6 PHE B 327  SER B 332  1  O  SER B 332   N  ILE A 282           
SHEET    6   A 6 THR B 388  GLU B 390 -1  O  THR B 388   N  CYS B 331           
SHEET    1   B 2 GLY A 242  CYS A 244  0                                        
SHEET    2   B 2 ILE A 255  GLN A 257 -1  O  LEU A 256   N  ILE A 243           
CISPEP   1 PRO A  290    GLY A  291          0         6.15                     
CISPEP   2 ASP B  336    ASN B  337          0        -1.52                     
CRYST1   62.982   62.982  143.158  90.00  90.00  90.00 P 43 21 2     8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.015878  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.015878  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006985        0.00000