HEADER    PROTEIN BINDING                         01-JUN-05   1ZV1              
TITLE     CRYSTAL STRUCTURE OF THE DIMERIZATION DOMAIN OF DOUBLESEX PROTEIN FROM
TITLE    2 D. MELANOGASTER                                                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DOUBLESEX PROTEIN;                                         
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: DIMERIZATION DOMAIN;                                       
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: DROSOPHILA MELANOGASTER;                        
SOURCE   3 ORGANISM_COMMON: FRUIT FLY;                                          
SOURCE   4 ORGANISM_TAXID: 7227;                                                
SOURCE   5 GENE: DSX;                                                           
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    DOUBLESEX, UBA DOMAIN, DIMERIZATION, SEX DETERMINATION, TRANSCRIPTION 
KEYWDS   2 FACTOR, PROTEIN BINDING                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.A.WEISS,J.R.BAYRER,Z.WAN,B.LI,N.B.PHILLIPS                          
REVDAT   5   14-FEB-24 1ZV1    1       SEQADV                                   
REVDAT   4   24-JUL-19 1ZV1    1       REMARK                                   
REVDAT   3   24-FEB-09 1ZV1    1       VERSN                                    
REVDAT   2   14-MAR-06 1ZV1    1       JRNL                                     
REVDAT   1   09-AUG-05 1ZV1    0                                                
JRNL        AUTH   J.R.BAYRER,W.ZHANG,M.A.WEISS                                 
JRNL        TITL   DIMERIZATION OF DOUBLESEX IS MEDIATED BY A CRYPTIC           
JRNL        TITL 2 UBIQUITIN-ASSOCIATED DOMAIN FOLD: IMPLICATIONS FOR           
JRNL        TITL 3 SEX-SPECIFIC GENE REGULATION                                 
JRNL        REF    J.BIOL.CHEM.                  V. 280 32989 2005              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   16049008                                                     
JRNL        DOI    10.1074/JBC.M507990200                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD WITH PHASES                
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 10.86                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 14294                          
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) : 0.211                           
REMARK   3   R VALUE            (WORKING SET) : 0.209                           
REMARK   3   FREE R VALUE                     : 0.257                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 752                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.60                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.64                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1003                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 96.85                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2420                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 44                           
REMARK   3   BIN FREE R VALUE                    : 0.3370                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 972                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 126                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 27.97                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.00000                                              
REMARK   3    B22 (A**2) : -0.01000                                             
REMARK   3    B33 (A**2) : 0.01000                                              
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): 0.115         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.118         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.063         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.707         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.947                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.925                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1015 ; 0.013 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  1372 ; 1.394 ; 1.970       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   116 ; 3.880 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    58 ;32.613 ;25.000       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   181 ;13.672 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     6 ;16.551 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   143 ; 0.092 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   786 ; 0.007 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   568 ; 0.240 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):   707 ; 0.322 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   112 ; 0.290 ; 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):    33 ; 0.225 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    21 ; 0.214 ; 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):   608 ; 1.319 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):   945 ; 2.190 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   479 ; 2.775 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   427 ; 3.980 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 1ZV1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-JUN-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000033152.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 11-APR-03; 26-NOV-02               
REMARK 200  TEMPERATURE           (KELVIN) : 200; NULL                          
REMARK 200  PH                             : 7.4                                
REMARK 200  NUMBER OF CRYSTALS USED        : 2                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y; Y                               
REMARK 200  RADIATION SOURCE               : NSLS; APS                          
REMARK 200  BEAMLINE                       : X9B; 14-BM-C                       
REMARK 200  X-RAY GENERATOR MODEL          : NULL; NULL                         
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M; M                               
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9788; 0.90000                    
REMARK 200  MONOCHROMATOR                  : NULL; NULL                         
REMARK 200  OPTICS                         : NULL; NULL                         
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD; CCD                           
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4; ADSC QUANTUM 4     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 15159                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : 10.90                              
REMARK 200  R MERGE                    (I) : 0.03800                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 62.3000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.66                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 96.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.18200                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 11.00                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH; NULL                        
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD                          
REMARK 200 SOFTWARE USED: SHELXS                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 28.53                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.79                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, ISOPROPANOL, TRIS,     
REMARK 280  SODIUM CHLORIDE , PH 7.4, VAPOR DIFFUSION, HANGING DROP,            
REMARK 280  TEMPERATURE 298K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       19.88650            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       29.88550            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       23.31150            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       29.88550            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       19.88650            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       23.31150            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A DIMER FOUND ENTIRELY IN THE     
REMARK 300 ASYMMETRIC UNIT.                                                     
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: 2260 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 6780 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -20.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     GLY A     1                                                      
REMARK 465     SER A     2                                                      
REMARK 465     PRO A     3                                                      
REMARK 465     LEU A     4                                                      
REMARK 465     GLY A     5                                                      
REMARK 465     ASN A    65                                                      
REMARK 465     GLY B     1                                                      
REMARK 465     SER B     2                                                      
REMARK 465     PRO B     3                                                      
REMARK 465     LEU B     4                                                      
REMARK 465     GLY B     5                                                      
REMARK 465     ASN B    65                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     ARG A  60    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLN A  61    CG   CD   OE1  NE2                                  
REMARK 470     HIS A  62    CG   ND1  CD2  CE1  NE2                             
REMARK 470     ASN A  63    CG   OD1  ND2                                       
REMARK 470     LEU A  64    CG   CD1  CD2                                       
REMARK 470     ARG B  60    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLN B  61    CG   CD   OE1  NE2                                  
REMARK 470     HIS B  62    CG   ND1  CD2  CE1  NE2                             
REMARK 470     ASN B  63    CG   OD1  ND2                                       
REMARK 470     LEU B  64    CG   CD1  CD2                                       
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   O    HOH A   164     O    HOH B   122              1.52            
REMARK 500   NH1  ARG A    47     O    HOH A   185              1.82            
REMARK 500   O    HOH A   124     O    HOH A   183              1.93            
REMARK 500   O    HOH B    79     O    HOH B   117              2.01            
REMARK 500   NH1  ARG B    47     O    HOH B   122              2.06            
REMARK 500   O    ARG B    47     O    HOH B   117              2.07            
REMARK 500   O    HOH A   176     O    HOH A   190              2.19            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ASN A  63       72.62     60.75                                   
REMARK 500    ASN B  63       73.19     60.74                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  1ZV1 A    3    65  UNP    P23023   DSX_DROME      350    412             
DBREF  1ZV1 B    3    65  UNP    P23023   DSX_DROME      350    412             
SEQADV 1ZV1 GLY A    1  UNP  P23023              CLONING ARTIFACT               
SEQADV 1ZV1 SER A    2  UNP  P23023              CLONING ARTIFACT               
SEQADV 1ZV1 GLY B    1  UNP  P23023              CLONING ARTIFACT               
SEQADV 1ZV1 SER B    2  UNP  P23023              CLONING ARTIFACT               
SEQRES   1 A   65  GLY SER PRO LEU GLY GLN ASP VAL PHE LEU ASP TYR CYS          
SEQRES   2 A   65  GLN LYS LEU LEU GLU LYS PHE ARG TYR PRO TRP GLU LEU          
SEQRES   3 A   65  MET PRO LEU MET TYR VAL ILE LEU LYS ASP ALA ASP ALA          
SEQRES   4 A   65  ASN ILE GLU GLU ALA SER ARG ARG ILE GLU GLU GLY GLN          
SEQRES   5 A   65  TYR VAL VAL ASN GLU TYR SER ARG GLN HIS ASN LEU ASN          
SEQRES   1 B   65  GLY SER PRO LEU GLY GLN ASP VAL PHE LEU ASP TYR CYS          
SEQRES   2 B   65  GLN LYS LEU LEU GLU LYS PHE ARG TYR PRO TRP GLU LEU          
SEQRES   3 B   65  MET PRO LEU MET TYR VAL ILE LEU LYS ASP ALA ASP ALA          
SEQRES   4 B   65  ASN ILE GLU GLU ALA SER ARG ARG ILE GLU GLU GLY GLN          
SEQRES   5 B   65  TYR VAL VAL ASN GLU TYR SER ARG GLN HIS ASN LEU ASN          
FORMUL   3  HOH   *126(H2 O)                                                    
HELIX    1   1 GLN A    6  PHE A   20  1                                  15    
HELIX    2   2 PRO A   23  GLU A   25  5                                   3    
HELIX    3   3 LEU A   26  ALA A   37  1                                  12    
HELIX    4   4 ASN A   40  SER A   59  1                                  20    
HELIX    5   5 GLN B    6  PHE B   20  1                                  15    
HELIX    6   6 PRO B   23  GLU B   25  5                                   3    
HELIX    7   7 LEU B   26  ALA B   37  1                                  12    
HELIX    8   8 ASN B   40  SER B   59  1                                  20    
CRYST1   39.773   46.623   59.771  90.00  90.00  90.00 P 21 21 21    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      0.025143  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.021449  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.016731        0.00000