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Database: PDB
Entry: 3ECW
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Original site: 3ECW 
HEADER    OXIDOREDUCTASE                          02-SEP-08   3ECW              
TITLE     CRYSTAL STRUCTURE OF THE ALS-RELATED PATHOLOGICAL MUTANT              
TITLE    2 T54R OF HUMAN APO CU,ZN SUPEROXIDE DISMUTASE (SOD1)                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: SUPEROXIDE DISMUTASE [CU-ZN];                              
COMPND   3 CHAIN: A, B, C, D;                                                   
COMPND   4 EC: 1.15.1.1;                                                        
COMPND   5 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: SOD1;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: ORIGAMI PLYSS;                             
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PENTR/TEV/D-TOPO                          
KEYWDS    HUMAN SUPEROXIDE DISMUTASE, CRYSTAL STRUCTURE, HOMODIMERIC            
KEYWDS   2 PROTEIN, APO PROTEIN, AGGREGATION, ALS, MUTANT, ACETYLATION,         
KEYWDS   3 AMYOTROPHIC LATERAL SCLEROSIS, ANTIOXIDANT, COPPER,                  
KEYWDS   4 CYTOPLASM, DISEASE MUTATION, METAL-BINDING, OXIDOREDUCTASE,          
KEYWDS   5 UBL CONJUGATION, ZINC                                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    V.CALDERONE                                                           
REVDAT   1   19-MAY-09 3ECW    0                                                
JRNL        AUTH   L.BANCI,I.BERTINI,M.BOCA,V.CALDERONE,F.CANTINI,              
JRNL        AUTH 2 S.GIROTTO,M.VIERU                                            
JRNL        TITL   STRUCTURAL AND DYNAMIC ASPECTS RELATED TO                    
JRNL        TITL 2 OLIGOMERIZATION OF APO SOD1 AND ITS MUTANTS.                 
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 106  6980 2009              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   19369197                                                     
JRNL        DOI    10.1073/PNAS.0809845106                                      
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   L.BANCI,I.BERTINI,A.DURAZO,S.GIROTTO,E.B.GRALLA,             
REMARK   1  AUTH 2 M.MARTINELLI,J.S.VALENTINE,M.VIERU,J.P.WHITELEGGE            
REMARK   1  TITL   METAL-FREE SUPEROXIDE DISMUTASE FORMS SOLUBLE                
REMARK   1  TITL 2 OLIGOMERS UNDER PHYSIOLOGICAL CONDITIONS: A                  
REMARK   1  TITL 3 POSSIBLE GENERAL MECHANISM FOR FAMILIAL ALS.                 
REMARK   1  REF    PROC.NATL.ACAD.SCI.USA        V. 104 11263 2007              
REMARK   1  REFN                   ISSN 0027-8424                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   L.BANCI,I.BERTINI,M.BOCA,S.GIROTTO,M.MARTINELLI,             
REMARK   1  AUTH 2 J.S.VALENTINE,M.VIERU                                        
REMARK   1  TITL   SOD1 AND AMYOTROPHIC LATERAL SCLEROSIS: MUTATIONS            
REMARK   1  TITL 2 AND OLIGOMERIZATION.                                         
REMARK   1  REF    PLOS ONE                      V.   3  1677 2008              
REMARK   1  REFN                   ESSN 1932-6203                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.15 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0019                                      
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.15                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 39.19                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 27233                          
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) : 0.209                           
REMARK   3   R VALUE            (WORKING SET) : 0.200                           
REMARK   3   FREE R VALUE                     : 0.297                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 9.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2715                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.15                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.21                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1869                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 100.00                       
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2370                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 158                          
REMARK   3   BIN FREE R VALUE                    : 0.3230                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4028                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 363                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 29.80                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 26.25                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -1.69000                                             
REMARK   3    B22 (A**2) : 2.28000                                              
REMARK   3    B33 (A**2) : -2.54000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -2.58000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.301         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.265         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.178         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 6.750         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.939                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.881                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  4096 ; 0.025 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  5529 ; 2.248 ; 1.942       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   545 ; 8.506 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   174 ;41.603 ;25.287       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   664 ;19.858 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    16 ;16.616 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   616 ; 0.158 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3112 ; 0.009 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1810 ; 0.223 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  2568 ; 0.306 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   342 ; 0.228 ; 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):    35 ; 0.203 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     6 ; 0.272 ; 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):  2785 ; 1.306 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  4282 ; 2.128 ; 2.000       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1462 ; 3.372 ; 3.000       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1247 ; 4.896 ; 4.500       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE          
REMARK   3  RIDING POSITIONS                                                    
REMARK   4                                                                      
REMARK   4 3ECW COMPLIES WITH FORMAT V. 3.20, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-OCT-08.                  
REMARK 100 THE RCSB ID CODE IS RCSB049164.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 07-SEP-07                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.0                                
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                       : BW7A                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.99180                            
REMARK 200  MONOCHROMATOR                  : SI 111 CHANNEL                     
REMARK 200  OPTICS                         : SI 111                             
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MAR CCD 165 MM                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 29951                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 39.200                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.0                               
REMARK 200  DATA REDUNDANCY                : 3.300                              
REMARK 200  R MERGE                    (I) : 0.09800                            
REMARK 200  R SYM                      (I) : 0.09800                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 6.4000                             
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) : 2.30                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 91.2                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.60                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.44300                            
REMARK 200  R SYM FOR SHELL            (I) : 0.44300                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.900                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: 1HL5                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 44.86                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.23                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M HEPES  20% PEG 3350, PH 7.0,       
REMARK 280  VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 289.1K                   
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,Y+1/2,Z                                           
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        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       78.47000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       17.01650            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       78.47000            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       17.01650            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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 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                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, 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 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     SER C    68                                                      
REMARK 465     ARG C    69                                                      
REMARK 465     LYS C    70                                                      
REMARK 465     HIS C    71                                                      
REMARK 465     GLY C    72                                                      
REMARK 465     GLY C    73                                                      
REMARK 465     PRO C    74                                                      
REMARK 465     LYS C    75                                                      
REMARK 465     ASP C    76                                                      
REMARK 465     GLU C    77                                                      
REMARK 465     GLU C    78                                                      
REMARK 465     ARG C    79                                                      
REMARK 465     ASP C   125                                                      
REMARK 465     LEU C   126                                                      
REMARK 465     GLY C   127                                                      
REMARK 465     LYS C   128                                                      
REMARK 465     GLY C   129                                                      
REMARK 465     GLY C   130                                                      
REMARK 465     ASN C   131                                                      
REMARK 465     GLU C   132                                                      
REMARK 465     GLU C   133                                                      
REMARK 465     SER C   134                                                      
REMARK 465     THR C   135                                                      
REMARK 465     LYS C   136                                                      
REMARK 465     THR C   137                                                      
REMARK 465     GLY C   138                                                      
REMARK 465     ASN C   139                                                      
REMARK 465     ALA C   140                                                      
REMARK 465     GLY C   141                                                      
REMARK 465     LEU D    67                                                      
REMARK 465     SER D    68                                                      
REMARK 465     ARG D    69                                                      
REMARK 465     LYS D    70                                                      
REMARK 465     HIS D    71                                                      
REMARK 465     GLY D    72                                                      
REMARK 465     GLY D    73                                                      
REMARK 465     PRO D    74                                                      
REMARK 465     LYS D    75                                                      
REMARK 465     ASP D    76                                                      
REMARK 465     GLU D    77                                                      
REMARK 465     GLU D    78                                                      
REMARK 465     ARG D    79                                                      
REMARK 465     ASP D   125                                                      
REMARK 465     LEU D   126                                                      
REMARK 465     GLY D   127                                                      
REMARK 465     LYS D   128                                                      
REMARK 465     GLY D   129                                                      
REMARK 465     GLY D   130                                                      
REMARK 465     ASN D   131                                                      
REMARK 465     GLU D   132                                                      
REMARK 465     GLU D   133                                                      
REMARK 465     SER D   134                                                      
REMARK 465     THR D   135                                                      
REMARK 465     LYS D   136                                                      
REMARK 465     THR D   137                                                      
REMARK 465     GLY D   138                                                      
REMARK 465     ASN D   139                                                      
REMARK 465     ALA D   140                                                      
REMARK 465     GLY D   141                                                      
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   NH1  ARG A    69     O    GLU A    77              2.11            
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    VAL A  31   CA    VAL A  31   CB      0.152                       
REMARK 500    VAL C   5   CB    VAL C   5   CG2     0.128                       
REMARK 500    CYS C   6   CB    CYS C   6   SG     -0.113                       
REMARK 500    VAL D   7   CB    VAL D   7   CG1     0.138                       
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    THR C   2   CB  -  CA  -  C   ANGL. DEV. =  18.7 DEGREES          
REMARK 500    LEU C   8   CA  -  CB  -  CG  ANGL. DEV. =  15.0 DEGREES          
REMARK 500    LEU C  42   CA  -  CB  -  CG  ANGL. DEV. =  19.8 DEGREES          
REMARK 500    ASP C  52   CB  -  CG  -  OD1 ANGL. DEV. =   5.9 DEGREES          
REMARK 500    ASP C  52   CB  -  CG  -  OD2 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500    ARG C 115   NE  -  CZ  -  NH1 ANGL. DEV. =   4.5 DEGREES          
REMARK 500    ARG C 115   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.1 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    LEU A 126       32.13     73.03                                   
REMARK 500    LYS A 136      -60.65    -97.30                                   
REMARK 500    SER B  68       36.27     33.02                                   
REMARK 500    ASP B  90     -169.09    -66.84                                   
REMARK 500    LEU B 126       37.21     70.42                                   
REMARK 500    GLU C  40      130.95    -29.80                                   
REMARK 500    ASP C  83       99.14    -68.15                                   
REMARK 500    ASP C  90     -172.90    -68.87                                   
REMARK 500    ASP C  92        0.83    -55.97                                   
REMARK 500    ASP D  90     -172.14    -69.37                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CHIRAL CENTERS                                             
REMARK 500                                                                      
REMARK 500 UNEXPECTED CONFIGURATION OF THE FOLLOWING CHIRAL                     
REMARK 500 CENTER(S) USING IMPROPER CA--C--CB--N CHIRALITY                      
REMARK 500 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: (11X,I3,1X,A3,1X,A1,I4,A1,6X,F5.1,6X,A1,10X,A1,3X,A16)       
REMARK 500                                                                      
REMARK 500   M RES CSSEQI    IMPROPER   EXPECTED   FOUND DETAILS                
REMARK 500     THR A   2        23.3      L          L   OUTSIDE RANGE          
REMARK 500     VAL A  31        24.2      L          L   OUTSIDE RANGE          
REMARK 500     GLN C 153        23.6      L          L   OUTSIDE RANGE          
REMARK 500     THR D   2        24.5      L          L   OUTSIDE RANGE          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3ECU   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3ECV   RELATED DB: PDB                                   
DBREF  3ECW A    1   153  UNP    P00441   SODC_HUMAN       2    154             
DBREF  3ECW B    1   153  UNP    P00441   SODC_HUMAN       2    154             
DBREF  3ECW C    1   153  UNP    P00441   SODC_HUMAN       2    154             
DBREF  3ECW D    1   153  UNP    P00441   SODC_HUMAN       2    154             
SEQADV 3ECW ARG A   54  UNP  P00441    THR    55 ENGINEERED                     
SEQADV 3ECW ARG B   54  UNP  P00441    THR    55 ENGINEERED                     
SEQADV 3ECW ARG C   54  UNP  P00441    THR    55 ENGINEERED                     
SEQADV 3ECW ARG D   54  UNP  P00441    THR    55 ENGINEERED                     
SEQRES   1 A  153  ALA THR LYS ALA VAL CYS VAL LEU LYS GLY ASP GLY PRO          
SEQRES   2 A  153  VAL GLN GLY ILE ILE ASN PHE GLU GLN LYS GLU SER ASN          
SEQRES   3 A  153  GLY PRO VAL LYS VAL TRP GLY SER ILE LYS GLY LEU THR          
SEQRES   4 A  153  GLU GLY LEU HIS GLY PHE HIS VAL HIS GLU PHE GLY ASP          
SEQRES   5 A  153  ASN ARG ALA GLY CYS THR SER ALA GLY PRO HIS PHE ASN          
SEQRES   6 A  153  PRO LEU SER ARG LYS HIS GLY GLY PRO LYS ASP GLU GLU          
SEQRES   7 A  153  ARG HIS VAL GLY ASP LEU GLY ASN VAL THR ALA ASP LYS          
SEQRES   8 A  153  ASP GLY VAL ALA ASP VAL SER ILE GLU ASP SER VAL ILE          
SEQRES   9 A  153  SER LEU SER GLY ASP HIS CYS ILE ILE GLY ARG THR LEU          
SEQRES  10 A  153  VAL VAL HIS GLU LYS ALA ASP ASP LEU GLY LYS GLY GLY          
SEQRES  11 A  153  ASN GLU GLU SER THR LYS THR GLY ASN ALA GLY SER ARG          
SEQRES  12 A  153  LEU ALA CYS GLY VAL ILE GLY ILE ALA GLN                      
SEQRES   1 B  153  ALA THR LYS ALA VAL CYS VAL LEU LYS GLY ASP GLY PRO          
SEQRES   2 B  153  VAL GLN GLY ILE ILE ASN PHE GLU GLN LYS GLU SER ASN          
SEQRES   3 B  153  GLY PRO VAL LYS VAL TRP GLY SER ILE LYS GLY LEU THR          
SEQRES   4 B  153  GLU GLY LEU HIS GLY PHE HIS VAL HIS GLU PHE GLY ASP          
SEQRES   5 B  153  ASN ARG ALA GLY CYS THR SER ALA GLY PRO HIS PHE ASN          
SEQRES   6 B  153  PRO LEU SER ARG LYS HIS GLY GLY PRO LYS ASP GLU GLU          
SEQRES   7 B  153  ARG HIS VAL GLY ASP LEU GLY ASN VAL THR ALA ASP LYS          
SEQRES   8 B  153  ASP GLY VAL ALA ASP VAL SER ILE GLU ASP SER VAL ILE          
SEQRES   9 B  153  SER LEU SER GLY ASP HIS CYS ILE ILE GLY ARG THR LEU          
SEQRES  10 B  153  VAL VAL HIS GLU LYS ALA ASP ASP LEU GLY LYS GLY GLY          
SEQRES  11 B  153  ASN GLU GLU SER THR LYS THR GLY ASN ALA GLY SER ARG          
SEQRES  12 B  153  LEU ALA CYS GLY VAL ILE GLY ILE ALA GLN                      
SEQRES   1 C  153  ALA THR LYS ALA VAL CYS VAL LEU LYS GLY ASP GLY PRO          
SEQRES   2 C  153  VAL GLN GLY ILE ILE ASN PHE GLU GLN LYS GLU SER ASN          
SEQRES   3 C  153  GLY PRO VAL LYS VAL TRP GLY SER ILE LYS GLY LEU THR          
SEQRES   4 C  153  GLU GLY LEU HIS GLY PHE HIS VAL HIS GLU PHE GLY ASP          
SEQRES   5 C  153  ASN ARG ALA GLY CYS THR SER ALA GLY PRO HIS PHE ASN          
SEQRES   6 C  153  PRO LEU SER ARG LYS HIS GLY GLY PRO LYS ASP GLU GLU          
SEQRES   7 C  153  ARG HIS VAL GLY ASP LEU GLY ASN VAL THR ALA ASP LYS          
SEQRES   8 C  153  ASP GLY VAL ALA ASP VAL SER ILE GLU ASP SER VAL ILE          
SEQRES   9 C  153  SER LEU SER GLY ASP HIS CYS ILE ILE GLY ARG THR LEU          
SEQRES  10 C  153  VAL VAL HIS GLU LYS ALA ASP ASP LEU GLY LYS GLY GLY          
SEQRES  11 C  153  ASN GLU GLU SER THR LYS THR GLY ASN ALA GLY SER ARG          
SEQRES  12 C  153  LEU ALA CYS GLY VAL ILE GLY ILE ALA GLN                      
SEQRES   1 D  153  ALA THR LYS ALA VAL CYS VAL LEU LYS GLY ASP GLY PRO          
SEQRES   2 D  153  VAL GLN GLY ILE ILE ASN PHE GLU GLN LYS GLU SER ASN          
SEQRES   3 D  153  GLY PRO VAL LYS VAL TRP GLY SER ILE LYS GLY LEU THR          
SEQRES   4 D  153  GLU GLY LEU HIS GLY PHE HIS VAL HIS GLU PHE GLY ASP          
SEQRES   5 D  153  ASN ARG ALA GLY CYS THR SER ALA GLY PRO HIS PHE ASN          
SEQRES   6 D  153  PRO LEU SER ARG LYS HIS GLY GLY PRO LYS ASP GLU GLU          
SEQRES   7 D  153  ARG HIS VAL GLY ASP LEU GLY ASN VAL THR ALA ASP LYS          
SEQRES   8 D  153  ASP GLY VAL ALA ASP VAL SER ILE GLU ASP SER VAL ILE          
SEQRES   9 D  153  SER LEU SER GLY ASP HIS CYS ILE ILE GLY ARG THR LEU          
SEQRES  10 D  153  VAL VAL HIS GLU LYS ALA ASP ASP LEU GLY LYS GLY GLY          
SEQRES  11 D  153  ASN GLU GLU SER THR LYS THR GLY ASN ALA GLY SER ARG          
SEQRES  12 D  153  LEU ALA CYS GLY VAL ILE GLY ILE ALA GLN                      
FORMUL   5  HOH   *363(H2 O)                                                    
HELIX    1   1 GLY A   56  GLY A   61  5                                   6    
HELIX    2   2 ASN A  131  THR A  135  5                                   5    
HELIX    3   3 GLY B   56  GLY B   61  5                                   6    
HELIX    4   4 GLU B  132  LYS B  136  5                                   5    
HELIX    5   5 ALA C   55  GLY C   61  5                                   7    
HELIX    6   6 GLY D   56  GLY D   61  5                                   6    
HELIX    7   7 SER D  107  CYS D  111  5                                   5    
SHEET    1   A 5 ALA A  95  ASP A 101  0                                        
SHEET    2   A 5 VAL A  29  LYS A  36 -1  N  VAL A  29   O  ASP A 101           
SHEET    3   A 5 GLN A  15  GLN A  22 -1  N  GLN A  15   O  LYS A  36           
SHEET    4   A 5 THR A   2  LEU A   8 -1  N  LEU A   8   O  GLY A  16           
SHEET    5   A 5 GLY A 150  ILE A 151 -1  O  GLY A 150   N  VAL A   5           
SHEET    1   B 4 ASP A  83  ALA A  89  0                                        
SHEET    2   B 4 GLY A  41  HIS A  48 -1  N  GLY A  41   O  ALA A  89           
SHEET    3   B 4 THR A 116  HIS A 120 -1  O  HIS A 120   N  GLY A  44           
SHEET    4   B 4 ARG A 143  VAL A 148 -1  O  ALA A 145   N  VAL A 119           
SHEET    1   C 5 ALA B  95  ASP B 101  0                                        
SHEET    2   C 5 VAL B  29  LYS B  36 -1  N  ILE B  35   O  ALA B  95           
SHEET    3   C 5 GLN B  15  GLN B  22 -1  N  ASN B  19   O  TRP B  32           
SHEET    4   C 5 THR B   2  LYS B   9 -1  N  LEU B   8   O  GLY B  16           
SHEET    5   C 5 GLY B 150  ILE B 151 -1  O  GLY B 150   N  VAL B   5           
SHEET    1   D 4 ASP B  83  ALA B  89  0                                        
SHEET    2   D 4 GLY B  41  HIS B  48 -1  N  GLY B  41   O  ALA B  89           
SHEET    3   D 4 THR B 116  HIS B 120 -1  O  THR B 116   N  HIS B  48           
SHEET    4   D 4 ARG B 143  VAL B 148 -1  O  LEU B 144   N  VAL B 119           
SHEET    1   E 5 ALA C  95  ASP C 101  0                                        
SHEET    2   E 5 VAL C  29  LYS C  36 -1  N  VAL C  31   O  ILE C  99           
SHEET    3   E 5 GLN C  15  GLN C  22 -1  N  ASN C  19   O  TRP C  32           
SHEET    4   E 5 THR C   2  LEU C   8 -1  N  CYS C   6   O  ILE C  18           
SHEET    5   E 5 GLY C 150  ILE C 151 -1  O  GLY C 150   N  VAL C   5           
SHEET    1   F 4 ASP C  83  ALA C  89  0                                        
SHEET    2   F 4 GLY C  41  HIS C  48 -1  N  GLY C  41   O  ALA C  89           
SHEET    3   F 4 THR C 116  HIS C 120 -1  O  VAL C 118   N  HIS C  46           
SHEET    4   F 4 ARG C 143  VAL C 148 -1  O  GLY C 147   N  LEU C 117           
SHEET    1   G 5 ALA D  95  ASP D 101  0                                        
SHEET    2   G 5 VAL D  29  LYS D  36 -1  N  VAL D  29   O  ASP D 101           
SHEET    3   G 5 GLN D  15  GLN D  22 -1  N  GLN D  15   O  LYS D  36           
SHEET    4   G 5 THR D   2  LEU D   8 -1  N  LEU D   8   O  GLY D  16           
SHEET    5   G 5 GLY D 150  ILE D 151 -1  O  GLY D 150   N  VAL D   5           
SHEET    1   H 4 ASP D  83  ALA D  89  0                                        
SHEET    2   H 4 GLY D  41  HIS D  48 -1  N  HIS D  43   O  VAL D  87           
SHEET    3   H 4 THR D 116  HIS D 120 -1  O  THR D 116   N  HIS D  48           
SHEET    4   H 4 ARG D 143  VAL D 148 -1  O  LEU D 144   N  VAL D 119           
SSBOND   1 CYS A   57    CYS A  146                          1555   1555  2.09  
SSBOND   2 CYS B   57    CYS B  146                          1555   1555  2.11  
SSBOND   3 CYS C   57    CYS C  146                          1555   1555  2.14  
SSBOND   4 CYS D   57    CYS D  146                          1555   1555  2.16  
CRYST1  156.940   34.033  114.585  90.00 112.14  90.00 C 1 2 1      16          
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      0.006372  0.000000  0.002593        0.00000                         
SCALE2      0.000000  0.029383  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009422        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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