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Database: PDB
Entry: 4IAH
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Original site: 4IAH 
HEADER    LYASE                                   06-DEC-12   4IAH              
TITLE     CRYSTAL STRUCTURE OF BAY 60-2770 BOUND C139A H-NOX DOMAIN WITH S-     
TITLE    2 NITROSYLATED CONSERVED C122                                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ALR2278 PROTEIN;                                           
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: HNOX DOMAIN, UNP RESIDUES 1-182;                           
COMPND   5 EC: 4.6.1.2;                                                         
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: NOSTOC SP.;                                     
SOURCE   3 ORGANISM_TAXID: 103690;                                              
SOURCE   4 STRAIN: PC 7120;                                                     
SOURCE   5 GENE: ALR2278;                                                       
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: ROSSETTA 2(DE3) PLYSS;                     
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET22B                                    
KEYWDS    H-NOX DOMAIN, SOLUBLE GUANYLYL CYCLASE, BAY 60-2770, S-NITROSYLATION, 
KEYWDS   2 CONSERVED C122, HEME BINDING, NO BINDING, LYASE                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    V.KUMAR,F.VAN DEN AKKER                                               
REVDAT   3   20-SEP-23 4IAH    1       REMARK SEQADV LINK                       
REVDAT   2   18-DEC-13 4IAH    1       JRNL                                     
REVDAT   1   20-NOV-13 4IAH    0                                                
JRNL        AUTH   V.KUMAR,F.MARTIN,M.G.HAHN,M.SCHAEFER,J.S.STAMLER,J.P.STASCH, 
JRNL        AUTH 2 F.VAN DEN AKKER                                              
JRNL        TITL   INSIGHTS INTO BAY 60-2770 ACTIVATION AND                     
JRNL        TITL 2 S-NITROSYLATION-DEPENDENT DESENSITIZATION OF SOLUBLE         
JRNL        TITL 3 GUANYLYL CYCLASE VIA CRYSTAL STRUCTURES OF HOMOLOGOUS NOSTOC 
JRNL        TITL 4 H-NOX DOMAIN COMPLEXES.                                      
JRNL        REF    BIOCHEMISTRY                  V.  52  3601 2013              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   23614626                                                     
JRNL        DOI    10.1021/BI301657W                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0110                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 86.69                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.300                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 14472                          
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) : 0.165                           
REMARK   3   R VALUE            (WORKING SET) : 0.163                           
REMARK   3   FREE R VALUE                     : 0.218                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.300                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 807                             
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) : 2.80                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.87                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1028                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 97.22                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1930                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 57                           
REMARK   3   BIN FREE R VALUE                    : 0.3310                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2866                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 104                                     
REMARK   3   SOLVENT ATOMS            : 35                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 29.70                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 29.70                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.109         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.060         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.119         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.799         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.936                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.896                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3042 ; 0.003 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  2012 ; 0.000 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  4112 ; 0.889 ; 1.991       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  4902 ; 0.601 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   362 ; 2.122 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   142 ;22.680 ;24.789       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   491 ;10.399 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    10 ;11.844 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   428 ; 0.062 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3392 ; 0.011 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   626 ; 0.001 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
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):  1798 ; 0.173 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):   746 ; 0.014 ; 1.500       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2870 ; 0.324 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1244 ; 0.286 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1242 ; 0.512 ; 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  TWIN DETAILS                                                        
REMARK   3   NUMBER OF TWIN DOMAINS  : 2                                        
REMARK   3      TWIN DOMAIN   : 1                                               
REMARK   3      TWIN OPERATOR : H, K, L                                         
REMARK   3      TWIN FRACTION : 0.543                                           
REMARK   3      TWIN DOMAIN   : 2                                               
REMARK   3      TWIN OPERATOR : -K, -H, -L                                      
REMARK   3      TWIN FRACTION : 0.457                                           
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 RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 4IAH COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-DEC-12.                  
REMARK 100 THE DEPOSITION ID IS D_1000076508.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 02-DEC-11                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU MICROMAX-007 HF             
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : GRAPHITE                           
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU SATURN 944+                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 14472                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.800                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 86.700                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.3                               
REMARK 200  DATA REDUNDANCY                : 6.900                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.06900                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 20.7000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.80                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.93                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: PDB ENTRY 2O0C                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 67.32                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.76                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1.8M SODIUM MALONATE, PH 7.0, VAPOR      
REMARK 280  DIFFUSION, SITTING DROP, TEMPERATURE 295K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 3                           
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       5555   Z,X,Y                                                   
REMARK 290       6555   Z+1/2,-X+1/2,-Y                                         
REMARK 290       7555   -Z+1/2,-X,Y+1/2                                         
REMARK 290       8555   -Z,X+1/2,-Y+1/2                                         
REMARK 290       9555   Y,Z,X                                                   
REMARK 290      10555   -Y,Z+1/2,-X+1/2                                         
REMARK 290      11555   Y+1/2,-Z+1/2,-X                                         
REMARK 290      12555   -Y+1/2,-Z,X+1/2                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       61.28650            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       61.28650            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       61.28650            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       61.28650            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       61.28650            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       61.28650            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY2   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   6  0.000000  0.000000  1.000000       61.28650            
REMARK 290   SMTRY2   6 -1.000000  0.000000  0.000000       61.28650            
REMARK 290   SMTRY3   6  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY1   7  0.000000  0.000000 -1.000000       61.28650            
REMARK 290   SMTRY2   7 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  1.000000  0.000000       61.28650            
REMARK 290   SMTRY1   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY2   8  1.000000  0.000000  0.000000       61.28650            
REMARK 290   SMTRY3   8  0.000000 -1.000000  0.000000       61.28650            
REMARK 290   SMTRY1   9  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   9  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY3   9  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  10  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  10  0.000000  0.000000  1.000000       61.28650            
REMARK 290   SMTRY3  10 -1.000000  0.000000  0.000000       61.28650            
REMARK 290   SMTRY1  11  0.000000  1.000000  0.000000       61.28650            
REMARK 290   SMTRY2  11  0.000000  0.000000 -1.000000       61.28650            
REMARK 290   SMTRY3  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY1  12  0.000000 -1.000000  0.000000       61.28650            
REMARK 290   SMTRY2  12  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY3  12  1.000000  0.000000  0.000000       61.28650            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2, 3, 4, 5                                           
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: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3640 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 25190 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -18.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.000000  0.000000 -1.000000      -61.28650            
REMARK 350   BIOMT2   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  1.000000  0.000000      -61.28650            
REMARK 350   BIOMT1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT2   3  0.000000  0.000000  1.000000       61.28650            
REMARK 350   BIOMT3   3 -1.000000  0.000000  0.000000      -61.28650            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 4                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3740 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 24820 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -20.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.000000  0.000000 -1.000000      -61.28650            
REMARK 350   BIOMT2   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  1.000000  0.000000      -61.28650            
REMARK 350   BIOMT1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT2   3  0.000000  0.000000  1.000000       61.28650            
REMARK 350   BIOMT3   3 -1.000000  0.000000  0.000000      -61.28650            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 5                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 10130 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 47270 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -53.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT2   2  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT1   3  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT2   3  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT3   3  1.000000  0.000000  0.000000        0.00000            
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     SNC B 122    ND   OE                                             
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   OE2  GLU A    72     OE2  GLU B   161     5555     2.10            
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    ILE A  34      104.79    -44.78                                   
REMARK 500    ASP A  45      -29.51    -39.31                                   
REMARK 500    GLU A  81       48.13    -71.39                                   
REMARK 500    TYR A  83       29.47   -149.55                                   
REMARK 500    ARG A 116       76.89   -114.68                                   
REMARK 500    SER A 126     -156.68   -153.03                                   
REMARK 500    GLN A 157       58.90     24.53                                   
REMARK 500    GLU A 169      -16.28    -48.25                                   
REMARK 500    HIS B  17       -4.62   -146.37                                   
REMARK 500    ASP B  20      -71.32    -31.81                                   
REMARK 500    ALA B  29       -9.41    -51.55                                   
REMARK 500    LEU B  31       82.28   -175.78                                   
REMARK 500    GLU B  81       28.26   -142.62                                   
REMARK 500    ASP B  92       27.66   -151.06                                   
REMARK 500    LEU B 110      -76.05    -58.55                                   
REMARK 500    PHE B 112       71.09   -113.27                                   
REMARK 500    SER B 126     -178.34    171.90                                   
REMARK 500    LYS B 128       -7.18   -146.92                                   
REMARK 500    GLN B 157       61.17     26.45                                   
REMARK 500    GLU B 169      -37.36    -35.33                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 1DX A 201                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MLI A 202                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 1DX B 201                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MLI B 202                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3L6J   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF CINACIGUAT (BAY 58-2667) BOUND TO NOSTOC H-NOX DOMAIN   
REMARK 900 RELATED ID: 2O09   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE H-NOX DOMAIN FROM NOSTOC SP. PCC 7120       
REMARK 900 RELATED ID: 2O0C   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE H-NOX DOMAIN FROM NOSTOC SP. PCC 7120       
REMARK 900 COMPLEXED TO NO                                                      
REMARK 900 RELATED ID: 2O0G   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE H-NOX DOMAIN FROM NOSTOC SP. PCC 7120       
REMARK 900 COMPLEXED TO CO                                                      
REMARK 900 RELATED ID: 4IAE   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF BAY 60-2770 BOUND TO NOSTOC H-NOX DOMAIN        
REMARK 900 RELATED ID: 4IAM   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE C139A MUTANT OF NOSTOC H-NOX DOMAIN         
DBREF  4IAH A    1   182  UNP    Q8YUQ7   Q8YUQ7_NOSS1     1    182             
DBREF  4IAH B    1   182  UNP    Q8YUQ7   Q8YUQ7_NOSS1     1    182             
SEQADV 4IAH ALA A  139  UNP  Q8YUQ7    CYS   139 ENGINEERED MUTATION            
SEQADV 4IAH ALA B  139  UNP  Q8YUQ7    CYS   139 ENGINEERED MUTATION            
SEQRES   1 A  182  MET TYR GLY LEU VAL ASN LYS ALA ILE GLN ASP MET ILE          
SEQRES   2 A  182  SER LYS HIS HIS GLY GLU ASP THR TRP GLU ALA ILE LYS          
SEQRES   3 A  182  GLN LYS ALA GLY LEU GLU ASP ILE ASP PHE PHE VAL GLY          
SEQRES   4 A  182  MET GLU ALA TYR SER ASP ASP VAL THR TYR HIS LEU VAL          
SEQRES   5 A  182  GLY ALA ALA SER GLU VAL LEU GLY LYS PRO ALA GLU GLU          
SEQRES   6 A  182  LEU LEU ILE ALA PHE GLY GLU TYR TRP VAL THR TYR THR          
SEQRES   7 A  182  SER GLU GLU GLY TYR GLY GLU LEU LEU ALA SER ALA GLY          
SEQRES   8 A  182  ASP SER LEU PRO GLU PHE MET GLU ASN LEU ASP ASN LEU          
SEQRES   9 A  182  HIS ALA ARG VAL GLY LEU SER PHE PRO GLN LEU ARG PRO          
SEQRES  10 A  182  PRO ALA PHE GLU SNC GLN HIS THR SER SER LYS SER MET          
SEQRES  11 A  182  GLU LEU HIS TYR GLN SER THR ARG ALA GLY LEU ALA PRO          
SEQRES  12 A  182  MET VAL LEU GLY LEU LEU HIS GLY LEU GLY LYS ARG PHE          
SEQRES  13 A  182  GLN THR LYS VAL GLU VAL THR GLN THR ALA PHE ARG GLU          
SEQRES  14 A  182  THR GLY GLU ASP HIS ASP ILE PHE SER ILE LYS TYR GLU          
SEQRES   1 B  182  MET TYR GLY LEU VAL ASN LYS ALA ILE GLN ASP MET ILE          
SEQRES   2 B  182  SER LYS HIS HIS GLY GLU ASP THR TRP GLU ALA ILE LYS          
SEQRES   3 B  182  GLN LYS ALA GLY LEU GLU ASP ILE ASP PHE PHE VAL GLY          
SEQRES   4 B  182  MET GLU ALA TYR SER ASP ASP VAL THR TYR HIS LEU VAL          
SEQRES   5 B  182  GLY ALA ALA SER GLU VAL LEU GLY LYS PRO ALA GLU GLU          
SEQRES   6 B  182  LEU LEU ILE ALA PHE GLY GLU TYR TRP VAL THR TYR THR          
SEQRES   7 B  182  SER GLU GLU GLY TYR GLY GLU LEU LEU ALA SER ALA GLY          
SEQRES   8 B  182  ASP SER LEU PRO GLU PHE MET GLU ASN LEU ASP ASN LEU          
SEQRES   9 B  182  HIS ALA ARG VAL GLY LEU SER PHE PRO GLN LEU ARG PRO          
SEQRES  10 B  182  PRO ALA PHE GLU SNC GLN HIS THR SER SER LYS SER MET          
SEQRES  11 B  182  GLU LEU HIS TYR GLN SER THR ARG ALA GLY LEU ALA PRO          
SEQRES  12 B  182  MET VAL LEU GLY LEU LEU HIS GLY LEU GLY LYS ARG PHE          
SEQRES  13 B  182  GLN THR LYS VAL GLU VAL THR GLN THR ALA PHE ARG GLU          
SEQRES  14 B  182  THR GLY GLU ASP HIS ASP ILE PHE SER ILE LYS TYR GLU          
MODRES 4IAH SNC A  122  CYS  S-NITROSO-CYSTEINE                                 
MODRES 4IAH SNC B  122  CYS  S-NITROSO-CYSTEINE                                 
HET    SNC  A 122       8                                                       
HET    SNC  B 122       6                                                       
HET    1DX  A 201      45                                                       
HET    MLI  A 202       7                                                       
HET    1DX  B 201      45                                                       
HET    MLI  B 202       7                                                       
HETNAM     SNC S-NITROSO-CYSTEINE                                               
HETNAM     1DX 4-({(4-CARBOXYBUTYL)[2-(5-FLUORO-2-{[4'-                         
HETNAM   2 1DX  (TRIFLUOROMETHYL)BIPHENYL-4-YL]METHOXY}PHENYL)                  
HETNAM   3 1DX  ETHYL]AMINO}METHYL)BENZOIC ACID                                 
HETNAM     MLI MALONATE ION                                                     
FORMUL   1  SNC    2(C3 H6 N2 O3 S)                                             
FORMUL   3  1DX    2(C35 H33 F4 N O5)                                           
FORMUL   4  MLI    2(C3 H2 O4 2-)                                               
FORMUL   7  HOH   *35(H2 O)                                                     
HELIX    1   1 TYR A    2  ALA A   29  1                                  28    
HELIX    2   2 SER A   44  GLY A   60  1                                  17    
HELIX    3   3 PRO A   62  GLU A   81  1                                  20    
HELIX    4   4 TYR A   83  SER A   89  1                                   7    
HELIX    5   5 SER A   93  LEU A  110  1                                  18    
HELIX    6   6 LEU A  141  PHE A  156  1                                  16    
HELIX    7   7 PHE A  167  GLY A  171  5                                   5    
HELIX    8   8 TYR B    2  LYS B   15  1                                  14    
HELIX    9   9 HIS B   17  ALA B   29  1                                  13    
HELIX   10  10 ASP B   45  GLY B   60  1                                  16    
HELIX   11  11 PRO B   62  THR B   78  1                                  17    
HELIX   12  12 TYR B   83  SER B   89  1                                   7    
HELIX   13  13 SER B   93  PHE B  112  1                                  20    
HELIX   14  14 LEU B  141  PHE B  156  1                                  16    
HELIX   15  15 PHE B  167  GLY B  171  5                                   5    
SHEET    1   A 4 ALA A 119  GLN A 123  0                                        
SHEET    2   A 4 SER A 129  GLN A 135 -1  O  GLU A 131   N  GLN A 123           
SHEET    3   A 4 ASP A 175  TYR A 181 -1  O  PHE A 177   N  LEU A 132           
SHEET    4   A 4 VAL A 160  ALA A 166 -1  N  THR A 163   O  SER A 178           
SHEET    1   B 4 ALA B 119  HIS B 124  0                                        
SHEET    2   B 4 SER B 129  GLN B 135 -1  O  GLU B 131   N  GLN B 123           
SHEET    3   B 4 ASP B 175  TYR B 181 -1  O  ASP B 175   N  TYR B 134           
SHEET    4   B 4 VAL B 160  ALA B 166 -1  N  THR B 165   O  ILE B 176           
LINK         C   GLU A 121                 N   SNC A 122     1555   1555  1.33  
LINK         C   SNC A 122                 N   GLN A 123     1555   1555  1.33  
LINK         C   GLU B 121                 N   SNC B 122     1555   1555  1.33  
LINK         C   SNC B 122                 N   GLN B 123     1555   1555  1.33  
SITE     1 AC1 19 MET A   1  TYR A   2  LEU A   4  GLY A  39                    
SITE     2 AC1 19 TRP A  74  TYR A  83  PHE A  97  HIS A 105                    
SITE     3 AC1 19 PHE A 112  LEU A 115  ARG A 116  PRO A 118                    
SITE     4 AC1 19 TYR A 134  SER A 136  ARG A 138  MET A 144                    
SITE     5 AC1 19 LEU A 148  LEU A 152  HOH A 304                               
SITE     1 AC2  4 HIS A  16  HIS A  17  LYS A  61  LYS B 180                    
SITE     1 AC3 18 MET B   1  TYR B   2  LEU B   4  GLY B  39                    
SITE     2 AC3 18 TRP B  74  TYR B  83  PHE B  97  LEU B 101                    
SITE     3 AC3 18 HIS B 105  PHE B 112  LEU B 115  ARG B 116                    
SITE     4 AC3 18 PRO B 118  TYR B 134  SER B 136  ARG B 138                    
SITE     5 AC3 18 LEU B 148  HOH B 316                                          
SITE     1 AC4  6 MET B  12  HIS B  16  HIS B  17  LEU B  59                    
SITE     2 AC4  6 LYS B  61  LEU B  66                                          
CRYST1  122.573  122.573  122.573  90.00  90.00  90.00 P 21 3       24          
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      0.008158  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.008158  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008158        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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