PDB Short entry for 1SY2
HEADER    TRANSPORT PROTEIN                       31-MAR-04   1SY2              
TITLE     1.0 A CRYSTAL STRUCTURE OF D129A/L130A MUTANT OF NITROPHORIN 4        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: NITROPHORIN 4;                                             
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: NP4;                                                        
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: RHODNIUS PROLIXUS;                              
SOURCE   3 ORGANISM_TAXID: 13249;                                               
SOURCE   4 ORGAN: SALIVARY GLAND;                                               
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21DE3;                                   
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET17B                                    
KEYWDS    LIPOCALIN, BETA BARREL, FERRIC HEME, TRANSPORT PROTEIN                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    E.M.MAES,A.WEICHSEL,J.F.ANDERSEN,D.SHEPLEY,W.R.MONTFORT               
REVDAT   3   27-OCT-21 1SY2    1       REMARK SEQADV LINK                       
REVDAT   2   24-FEB-09 1SY2    1       VERSN                                    
REVDAT   1   08-JUN-04 1SY2    0                                                
JRNL        AUTH   E.M.MAES,A.WEICHSEL,J.F.ANDERSEN,D.SHEPLEY,W.R.MONTFORT      
JRNL        TITL   ROLE OF BINDING SITE LOOPS IN CONTROLLING NITRIC OXIDE       
JRNL        TITL 2 RELEASE: STRUCTURE AND KINETICS OF MUTANT FORMS OF           
JRNL        TITL 3 NITROPHORIN 4                                                
JRNL        REF    BIOCHEMISTRY                  V.  43  6679 2004              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   15157102                                                     
JRNL        DOI    10.1021/BI049748A                                            
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  TITL   LIGAND-INDUCED HEME RUFFLING AND BENT NO GEOMETRY IN         
REMARK   1  TITL 2 ULTRA-HIGH-RESOLUTION STRUCTURES OF NITROPHORIN 4            
REMARK   1  REF    BIOCHEMISTRY                  V.  40 11327 2001              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.1.24                                        
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) : 1.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 21.40                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 97.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 77984                          
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) : 0.156                           
REMARK   3   R VALUE            (WORKING SET) : 0.156                           
REMARK   3   FREE R VALUE                     : 0.170                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 4104                            
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) : 1.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.03                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 5777                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1640                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 281                          
REMARK   3   BIN FREE R VALUE                    : 0.1860                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1422                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 44                                      
REMARK   3   SOLVENT ATOMS            : 258                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 6.62                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 8.69                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.07000                                             
REMARK   3    B22 (A**2) : 0.05000                                              
REMARK   3    B33 (A**2) : 0.03000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -0.03000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.027         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.026         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.014         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 0.246         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.966                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.962                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1542 ; 0.012 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  1302 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2116 ; 1.660 ; 2.043       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  3053 ; 0.794 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   193 ; 7.532 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   226 ; 0.098 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1732 ; 0.008 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   291 ; 0.002 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   279 ; 0.217 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  1490 ; 0.254 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):   904 ; 0.110 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   134 ; 0.117 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     1 ; 0.009 ; 0.200       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    14 ; 0.146 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    51 ; 0.219 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    34 ; 0.058 ; 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):   932 ; 1.290 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1493 ; 1.987 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   604 ; 2.155 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   607 ; 3.165 ; 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):  1536 ; 1.090 ; 2.000       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):   258 ; 3.625 ; 2.000       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  1493 ; 2.915 ; 2.000       
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 : BABINET MODEL WITH 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 1SY2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-APR-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000022083.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 16-MAY-02                          
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               : SSRL                               
REMARK 200  BEAMLINE                       : BL11-1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.98                               
REMARK 200  MONOCHROMATOR                  : SINGLE CRYSTAL SI(111) BENT        
REMARK 200                                   MONOCHROMATOR (HORIZONTAL          
REMARK 200                                   FOCUSING)                          
REMARK 200  OPTICS                         : FLAT MIRROR (VERTICAL FOCUSING)    
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : BLU-ICE                            
REMARK 200  DATA SCALING SOFTWARE          : D*TREK                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 85962                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 0.990                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 21.400                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.8                               
REMARK 200  DATA REDUNDANCY                : 4.620                              
REMARK 200  R MERGE                    (I) : 0.04900                            
REMARK 200  R SYM                      (I) : 0.04900                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 27.3000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 0.99                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.03                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.34                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.15700                            
REMARK 200  R SYM FOR SHELL            (I) : 0.15700                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 7.700                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: PDB ENTRY 1D2U                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 37.23                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.96                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM PHOSPHATE 2.8 M, PH 7.0,        
REMARK 280  VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K                     
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       35.07450            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       21.40200            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       35.07450            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       21.40200            
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 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 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 208  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 444  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 445  LIES ON A SPECIAL POSITION.                          
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    CYS A  41   CA  -  CB  -  SG  ANGL. DEV. =   7.9 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    PHE A  18       58.95    -92.84                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM A 185  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  59   NE2                                                    
REMARK 620 2 HEM A 185   NA   88.7                                              
REMARK 620 3 HEM A 185   NB   91.1  90.1                                        
REMARK 620 4 HEM A 185   NC   91.5 179.4  90.6                                  
REMARK 620 5 HEM A 185   ND   89.8  88.9 178.6  90.5                            
REMARK 620 6 NH4 A 200   N   178.2  89.7  89.7  90.2  89.4                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NH4 A 200                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 185                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1D2U   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF WILD-TYPE NITROPHORIN 4 FROM RHODNIUS PROLIXUS  
REMARK 900 COMPLEXED WITH AMMONIA                                               
REMARK 900 RELATED ID: 1SXU   RELATED DB: PDB                                   
REMARK 900 1.36 A CRYSTAL STRUCTURE OF D30N MUTANT OF NITROPHORIN 4 FROM        
REMARK 900 RHODNIUS PROLIXUS COMPLEXED WITH IMIDAZOLE                           
REMARK 900 RELATED ID: 1SXW   RELATED DB: PDB                                   
REMARK 900 1.05 A CRYSTAL STRUCTURE OF D30A MUTANT OF NITROPHORIN 4 FROM        
REMARK 900 RHODNIUS PROLIXUS COMPLEXED WITH NITRIC OXIDE                        
REMARK 900 RELATED ID: 1SXX   RELATED DB: PDB                                   
REMARK 900 1.0 A CRYSTAL STRUCTURE OF D129A/L130A MUTANT OF NITROPHORIN 4       
REMARK 900 COMPLEXED WITH NITRIC OXIDE                                          
REMARK 900 RELATED ID: 1SXY   RELATED DB: PDB                                   
REMARK 900 1.07 A CRYSTAL STRUCTURE OF D30N MUTANT OF NITROPHORIN 4 FROM        
REMARK 900 RHODNIUS PROLIXUS                                                    
REMARK 900 RELATED ID: 1SY0   RELATED DB: PDB                                   
REMARK 900 1.15 A CRYSTAL STRUCTURE OF T121V MUTANT OF NITROPHORIN 4 FROM       
REMARK 900 RHODNIUS PROLIXUS                                                    
REMARK 900 RELATED ID: 1SY1   RELATED DB: PDB                                   
REMARK 900 1.0 A CRYSTAL STRUCTURE OF T121V MUTANT OF NITROPHORIN 4 COMPLEXED   
REMARK 900 WITH NITRIC OXIDE                                                    
REMARK 900 RELATED ID: 1SY3   RELATED DB: PDB                                   
REMARK 900 1.00 A CRYSTAL STRUCTURE OF D30N MUTANT OF NITROPHORIN 4 FROM        
REMARK 900 RHODNIUS PROLIXUS COMPLEXED WITH NITRIC OXIDE                        
DBREF  1SY2 A    1   184  UNP    Q94734   NP4_RHOPR       22    205             
SEQADV 1SY2 ALA A  129  UNP  Q94734    ASP   150 ENGINEERED MUTATION            
SEQADV 1SY2 ALA A  130  UNP  Q94734    LEU   151 ENGINEERED MUTATION            
SEQRES   1 A  184  ALA CYS THR LYS ASN ALA ILE ALA GLN THR GLY PHE ASN          
SEQRES   2 A  184  LYS ASP LYS TYR PHE ASN GLY ASP VAL TRP TYR VAL THR          
SEQRES   3 A  184  ASP TYR LEU ASP LEU GLU PRO ASP ASP VAL PRO LYS ARG          
SEQRES   4 A  184  TYR CYS ALA ALA LEU ALA ALA GLY THR ALA SER GLY LYS          
SEQRES   5 A  184  LEU LYS GLU ALA LEU TYR HIS TYR ASP PRO LYS THR GLN          
SEQRES   6 A  184  ASP THR PHE TYR ASP VAL SER GLU LEU GLN VAL GLU SER          
SEQRES   7 A  184  LEU GLY LYS TYR THR ALA ASN PHE LYS LYS VAL ASP LYS          
SEQRES   8 A  184  ASN GLY ASN VAL LYS VAL ALA VAL THR ALA GLY ASN TYR          
SEQRES   9 A  184  TYR THR PHE THR VAL MET TYR ALA ASP ASP SER SER ALA          
SEQRES  10 A  184  LEU ILE HIS THR CYS LEU HIS LYS GLY ASN LYS ALA ALA          
SEQRES  11 A  184  GLY ASP LEU TYR ALA VAL LEU ASN ARG ASN LYS ASP ALA          
SEQRES  12 A  184  ALA ALA GLY ASP LYS VAL LYS SER ALA VAL SER ALA ALA          
SEQRES  13 A  184  THR LEU GLU PHE SER LYS PHE ILE SER THR LYS GLU ASN          
SEQRES  14 A  184  ASN CYS ALA TYR ASP ASN ASP SER LEU LYS SER LEU LEU          
SEQRES  15 A  184  THR LYS                                                      
HET    NH4  A 200       1                                                       
HET    HEM  A 185      43                                                       
HETNAM     NH4 AMMONIUM ION                                                     
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETSYN     HEM HEME                                                             
FORMUL   2  NH4    H4 N 1+                                                      
FORMUL   3  HEM    C34 H32 FE N4 O4                                             
FORMUL   4  HOH   *258(H2 O)                                                    
HELIX    1   1 ASN A   13  PHE A   18  1                                   6    
HELIX    2   2 GLY A  146  ALA A  156  1                                  11    
HELIX    3   3 GLU A  159  PHE A  163  5                                   5    
HELIX    4   4 ASP A  174  LEU A  182  1                                   9    
SHEET    1   A 7 VAL A  95  VAL A  97  0                                        
SHEET    2   A 7 LYS A  81  VAL A  89 -1  N  LYS A  88   O  LYS A  96           
SHEET    3   A 7 THR A  67  SER A  78 -1  N  GLU A  77   O  LYS A  81           
SHEET    4   A 7 LYS A  52  TYR A  60 -1  N  LEU A  57   O  ASP A  70           
SHEET    5   A 7 CYS A  41  ALA A  49 -1  N  GLY A  47   O  LYS A  54           
SHEET    6   A 7 ASN A  19  ASP A  30 -1  N  TRP A  23   O  LEU A  44           
SHEET    7   A 7 ILE A 164  SER A 165 -1  O  ILE A 164   N  TYR A  28           
SHEET    1   B 7 VAL A  95  VAL A  97  0                                        
SHEET    2   B 7 LYS A  81  VAL A  89 -1  N  LYS A  88   O  LYS A  96           
SHEET    3   B 7 ASN A 103  ALA A 112 -1  O  TYR A 105   N  ALA A  84           
SHEET    4   B 7 SER A 116  LYS A 125 -1  O  HIS A 124   N  TYR A 104           
SHEET    5   B 7 ASP A 132  ASN A 138 -1  O  LEU A 137   N  ALA A 117           
SHEET    6   B 7 ASN A  19  ASP A  30 -1  N  ASP A  27   O  VAL A 136           
SHEET    7   B 7 ILE A 164  SER A 165 -1  O  ILE A 164   N  TYR A  28           
SSBOND   1 CYS A    2    CYS A  122                          1555   1555  2.04  
SSBOND   2 CYS A   41    CYS A  171                          1555   1555  2.03  
LINK         NE2 HIS A  59                FE   HEM A 185     1555   1555  1.99  
LINK        FE   HEM A 185                 N   NH4 A 200     1555   1555  2.02  
SITE     1 AC1  2 LEU A 133  HEM A 185                                          
SITE     1 AC2 17 VAL A  36  PRO A  37  TYR A  40  LEU A  44                    
SITE     2 AC2 17 LEU A  57  HIS A  59  PHE A  68  ASP A  70                    
SITE     3 AC2 17 PHE A  86  LYS A  88  TYR A 105  LEU A 123                    
SITE     4 AC2 17 LYS A 125  LYS A 128  LEU A 133  NH4 A 200                    
SITE     5 AC2 17 HOH A 523                                                     
CRYST1   70.149   42.804   52.881  90.00  93.93  90.00 C 1 2 1       4          
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      0.014255  0.000000  0.000980        0.00000                         
SCALE2      0.000000  0.023362  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.018955        0.00000