HEADER    HYDROLASE                               30-JUN-04   1TWB              
TITLE     SSPB DISULFIDE CROSSLINKED TO AN SSRA DEGRADATION TAG                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: STRINGENT STARVATION PROTEIN B HOMOLOG;                    
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: SUBSTRATE BINDING DOMAIN;                                  
COMPND   5 SYNONYM: SSPB;                                                       
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES;                                                       
COMPND   8 MOL_ID: 2;                                                           
COMPND   9 MOLECULE: SSRA PEPTIDE;                                              
COMPND  10 CHAIN: C, D;                                                         
COMPND  11 FRAGMENT: PROTEASE RECOGNITION TAG;                                  
COMPND  12 ENGINEERED: YES;                                                     
COMPND  13 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HAEMOPHILUS INFLUENZAE;                         
SOURCE   3 ORGANISM_TAXID: 727;                                                 
SOURCE   4 GENE: SSPB, HI1440;                                                  
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BLR (DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET21;                                    
SOURCE  10 MOL_ID: 2;                                                           
SOURCE  11 SYNTHETIC: YES                                                       
KEYWDS    ADAPTOR, PROTEASE, AAA+, SPECIFICITY FACTOR, HYDROLASE                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.N.BOLON,R.A.GRANT,T.A.BAKER,R.T.SAUER                               
REVDAT   5   06-NOV-24 1TWB    1       REMARK                                   
REVDAT   4   23-AUG-23 1TWB    1       REMARK                                   
REVDAT   3   27-OCT-21 1TWB    1       SEQADV                                   
REVDAT   2   24-FEB-09 1TWB    1       VERSN                                    
REVDAT   1   16-NOV-04 1TWB    0                                                
JRNL        AUTH   D.N.BOLON,R.A.GRANT,T.A.BAKER,R.T.SAUER                      
JRNL        TITL   NUCLEOTIDE-DEPENDENT SUBSTRATE HANDOFF FROM THE SSPB ADAPTOR 
JRNL        TITL 2 TO THE AAA+ CLPXP PROTEASE.                                  
JRNL        REF    MOL.CELL                      V.  16   343 2004              
JRNL        REFN                   ISSN 1097-2765                               
JRNL        PMID   15525508                                                     
JRNL        DOI    10.1016/J.MOLCEL.2004.10.001                                 
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.90 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
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) : 1.90                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 29.02                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 265553.210                     
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 96.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 23184                          
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) : 0.235                           
REMARK   3   FREE R VALUE                     : 0.268                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 8.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2030                            
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) : 1.90                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.02                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 89.50                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 3460                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3380                       
REMARK   3   BIN FREE R VALUE                    : 0.3090                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 1.30                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 44                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.047                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1804                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 90                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 27.40                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 39.00                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 3.73000                                              
REMARK   3    B22 (A**2) : 3.73000                                              
REMARK   3    B33 (A**2) : -7.45000                                             
REMARK   3    B12 (A**2) : 3.13000                                              
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) : 0.27                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.27                            
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) : 0.32                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.23                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.006                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 24.90                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.750                           
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) : 1.420 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.040 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.140 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 3.070 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.35                                                 
REMARK   3   BSOL        : 42.19                                                
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  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  3  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : NULL                                           
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1TWB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-JUL-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000022964.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 8-BM                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97949                            
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 23184                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.900                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 29.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 12.30                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.06300                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 28.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.97                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.63400                            
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 1OU8                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 55.73                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.78                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 6000, MAGNESIUM ACETATE, ETHYLENE    
REMARK 280  GLYCOL, SODIUM CACODYLATE (PH 5.7), PH 6.5, VAPOR DIFFUSION,        
REMARK 280  HANGING DROP, TEMPERATURE 293K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+2/3                                           
REMARK 290       6555   -X,-X+Y,-Z+1/3                                          
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       36.79467            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       73.58933            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       73.58933            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       36.79467            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2, 3, 4                                              
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: 1100 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 6390 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -4.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, C                                  
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                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
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: 1100 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 6350 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -5.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, D                                  
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                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3480 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 11430 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -19.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, D                                  
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 -0.500000  0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.866025  0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000      110.38400            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 4                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3460 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 11520 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -16.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, C                                  
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 -0.500000 -0.866025  0.000000      102.35550            
REMARK 350   BIOMT2   2 -0.866025  0.500000  0.000000       59.09498            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       36.79467            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     GLU A     2                                                      
REMARK 465     TYR A     3                                                      
REMARK 465     LYS A     4                                                      
REMARK 465     MET B     1                                                      
REMARK 465     GLU B     2                                                      
REMARK 465     TYR B     3                                                      
REMARK 465     LYS B     4                                                      
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 A  97       -1.97   -142.85                                   
REMARK 500    GLU A 107      -54.98    -29.81                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THE SSRA PEPTIDE WAS SYNTHESIZED WITH AN A103C MUTATION              
DBREF  1TWB A    1   110  UNP    P45206   SSPB_HAEIN       1    110             
DBREF  1TWB B    1   110  UNP    P45206   SSPB_HAEIN       1    110             
DBREF  1TWB C  102   109  PDB    1TWB     1TWB           102    109             
DBREF  1TWB D  102   109  PDB    1TWB     1TWB           102    109             
SEQADV 1TWB CYS A   44  UNP  P45206    TYR    44 ENGINEERED MUTATION            
SEQADV 1TWB CYS B   44  UNP  P45206    TYR    44 ENGINEERED MUTATION            
SEQRES   1 A  110  MET GLU TYR LYS SER SER PRO LYS ARG PRO TYR LEU LEU          
SEQRES   2 A  110  ARG ALA TYR TYR ASP TRP LEU VAL ASP ASN SER PHE THR          
SEQRES   3 A  110  PRO TYR LEU VAL VAL ASP ALA THR TYR LEU GLY VAL ASN          
SEQRES   4 A  110  VAL PRO VAL GLU CYS VAL LYS ASP GLY GLN ILE VAL LEU          
SEQRES   5 A  110  ASN LEU SER ALA SER ALA THR GLY ASN LEU GLN LEU THR          
SEQRES   6 A  110  ASN ASP PHE ILE GLN PHE ASN ALA ARG PHE LYS GLY VAL          
SEQRES   7 A  110  SER ARG GLU LEU TYR ILE PRO MET GLY ALA ALA LEU ALA          
SEQRES   8 A  110  ILE TYR ALA ARG GLU ASN GLY ASP GLY VAL MET PHE GLU          
SEQRES   9 A  110  PRO GLU GLU ILE TYR ASP                                      
SEQRES   1 B  110  MET GLU TYR LYS SER SER PRO LYS ARG PRO TYR LEU LEU          
SEQRES   2 B  110  ARG ALA TYR TYR ASP TRP LEU VAL ASP ASN SER PHE THR          
SEQRES   3 B  110  PRO TYR LEU VAL VAL ASP ALA THR TYR LEU GLY VAL ASN          
SEQRES   4 B  110  VAL PRO VAL GLU CYS VAL LYS ASP GLY GLN ILE VAL LEU          
SEQRES   5 B  110  ASN LEU SER ALA SER ALA THR GLY ASN LEU GLN LEU THR          
SEQRES   6 B  110  ASN ASP PHE ILE GLN PHE ASN ALA ARG PHE LYS GLY VAL          
SEQRES   7 B  110  SER ARG GLU LEU TYR ILE PRO MET GLY ALA ALA LEU ALA          
SEQRES   8 B  110  ILE TYR ALA ARG GLU ASN GLY ASP GLY VAL MET PHE GLU          
SEQRES   9 B  110  PRO GLU GLU ILE TYR ASP                                      
SEQRES   1 C    8  ALA CYS ASN ASP GLU ASN TYR ALA                              
SEQRES   1 D    8  ALA CYS ASN ASP GLU ASN TYR ALA                              
FORMUL   5  HOH   *90(H2 O)                                                     
HELIX    1   1 LYS A    8  ASN A   23  1                                  16    
HELIX    2   2 PRO A   41  VAL A   45  5                                   5    
HELIX    3   3 GLU A  106  ASP A  110  5                                   5    
HELIX    4   4 LYS B    8  ASN B   23  1                                  16    
HELIX    5   5 PRO B   41  VAL B   45  5                                   5    
HELIX    6   6 GLU B  106  ASP B  110  5                                   5    
SHEET    1   A 4 GLN A  49  ASN A  53  0                                        
SHEET    2   A 4 PRO A  27  ASP A  32 -1  N  VAL A  31   O  ILE A  50           
SHEET    3   A 4 ALA A  89  ALA A  94 -1  O  ALA A  91   N  VAL A  30           
SHEET    4   A 4 GLY A 100  MET A 102 -1  O  VAL A 101   N  ILE A  92           
SHEET    1   B 3 THR A  59  LEU A  64  0                                        
SHEET    2   B 3 PHE A  68  PHE A  75 -1  O  GLN A  70   N  GLN A  63           
SHEET    3   B 3 VAL A  78  PRO A  85 -1  O  LEU A  82   N  PHE A  71           
SHEET    1   C 4 GLN B  49  ASN B  53  0                                        
SHEET    2   C 4 PRO B  27  ASP B  32 -1  N  LEU B  29   O  LEU B  52           
SHEET    3   C 4 ALA B  89  ALA B  94 -1  O  TYR B  93   N  TYR B  28           
SHEET    4   C 4 GLY B 100  MET B 102 -1  O  VAL B 101   N  ILE B  92           
SHEET    1   D 3 GLY B  60  LEU B  64  0                                        
SHEET    2   D 3 PHE B  68  PHE B  75 -1  O  ASN B  72   N  GLY B  60           
SHEET    3   D 3 VAL B  78  PRO B  85 -1  O  LEU B  82   N  PHE B  71           
SSBOND   1 CYS A   44    CYS C  103                          1555   1555  2.04  
SSBOND   2 CYS B   44    CYS D  103                          1555   1555  2.03  
CRYST1   68.237   68.237  110.384  90.00  90.00 120.00 P 31 2 1     12          
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      0.014655  0.008461  0.000000        0.00000                         
SCALE2      0.000000  0.016922  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009059        0.00000