HEADER    TRANSPORT PROTEIN                       30-NOV-04   1Y4G              
TITLE     T-TO-T(HIGH) QUATERNARY TRANSITIONS IN HUMAN HEMOGLOBIN: BETAW37G     
TITLE    2 DEOXY LOW-SALT (10 TEST SETS)                                        
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HEMOGLOBIN ALPHA CHAIN;                                    
COMPND   3 CHAIN: A, C;                                                         
COMPND   4 MOL_ID: 2;                                                           
COMPND   5 MOLECULE: HEMOGLOBIN BETA CHAIN;                                     
COMPND   6 CHAIN: B, D;                                                         
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 TISSUE: BLOOD;                                                       
SOURCE   6 MOL_ID: 2;                                                           
SOURCE   7 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   8 ORGANISM_COMMON: HUMAN;                                              
SOURCE   9 ORGANISM_TAXID: 9606;                                                
SOURCE  10 GENE: HBB;                                                           
SOURCE  11 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  12 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    HEMOGLOBIN MUTANT, GLOBIN, TRANSPORT PROTEIN                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.S.KAVANAUGH,P.H.ROGERS,A.ARNONE                                     
REVDAT   5   23-AUG-23 1Y4G    1       REMARK                                   
REVDAT   4   20-OCT-21 1Y4G    1       REMARK SEQADV                            
REVDAT   3   24-FEB-09 1Y4G    1       VERSN                                    
REVDAT   2   17-MAY-05 1Y4G    1       JRNL                                     
REVDAT   1   07-DEC-04 1Y4G    0                                                
SPRSDE     07-DEC-04 1Y4G      1A0X                                             
JRNL        AUTH   J.S.KAVANAUGH,P.H.ROGERS,A.ARNONE                            
JRNL        TITL   CRYSTALLOGRAPHIC EVIDENCE FOR A NEW ENSEMBLE OF              
JRNL        TITL 2 LIGAND-INDUCED ALLOSTERIC TRANSITIONS IN HEMOGLOBIN: THE     
JRNL        TITL 3 T-TO-T(HIGH) QUATERNARY TRANSITIONS.                         
JRNL        REF    BIOCHEMISTRY                  V.  44  6101 2005              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   15835899                                                     
JRNL        DOI    10.1021/BI047813A                                            
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   J.S.KAVANAUGH,J.A.WEYDERT,P.H.ROGERS,A.ARNONE                
REMARK   1  TITL   HIGH-RESOLUTION CRYSTAL STRUCTURES OF HUMAN HEMOGLOBIN WITH  
REMARK   1  TITL 2 MUTATIONS AT TRYPTOPHAN 37BETA: STRUCTURAL BASIS FOR A       
REMARK   1  TITL 3 HIGH-AFFINITY T-STATE                                        
REMARK   1  REF    BIOCHEMISTRY                  V.  37  4358 1998              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.91 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.0                                           
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) : 1.91                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 10.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 93.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 42278                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT AND LOCALRFREE       
REMARK   3   FREE R VALUE TEST SET SELECTION  : 10 SETS MATCHED TO PDB ENTRY    
REMARK   3                                      1Y0W                            
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.203                           
REMARK   3   R VALUE            (WORKING SET) : 0.199                           
REMARK   3   FREE R VALUE                     : 0.235                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 4712                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 7                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.91                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.05                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 6030                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3220                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 675                          
REMARK   3   BIN FREE R VALUE                    : 0.3500                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4366                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 172                                     
REMARK   3   SOLVENT ATOMS            : 175                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 25.77                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.17000                                             
REMARK   3    B22 (A**2) : 1.83000                                              
REMARK   3    B33 (A**2) : -1.66000                                             
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): 0.180         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.158         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.169         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 6.035         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.957                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.937                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  4706 ; 0.017 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  4168 ; 0.000 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  6410 ; 1.687 ; 2.061       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  9678 ; 1.154 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   570 ; 3.478 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   761 ;17.180 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   696 ; 0.094 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  5172 ; 0.007 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   884 ; 0.006 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1103 ; 0.239 ; 0.300       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  3702 ; 0.199 ; 0.300       
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):   167 ; 0.192 ; 0.500       
REMARK   3   H-BOND (X...Y) OTHERS             (A):     1 ; 0.112 ; 0.500       
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):    13 ; 0.139 ; 0.300       
REMARK   3   SYMMETRY VDW OTHERS               (A):    19 ; 0.236 ; 0.300       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     9 ; 0.212 ; 0.500       
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):  2856 ; 0.775 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  4562 ; 1.477 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1850 ; 2.384 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1848 ; 3.771 ; 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 : 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 1Y4G COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-DEC-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000031103.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 29-JUL-95                          
REMARK 200  TEMPERATURE           (KELVIN) : 298.0                              
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 RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : GRAPHITE                           
REMARK 200  OPTICS                         : GRAPHITE                           
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : AREA DETECTOR                      
REMARK 200  DETECTOR MANUFACTURER          : SDMS                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : SDMS                               
REMARK 200  DATA SCALING SOFTWARE          : SDMS                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 44737                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.910                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 91.7                               
REMARK 200  DATA REDUNDANCY                : 6.000                              
REMARK 200  R MERGE                    (I) : 0.08600                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 10.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.91                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.07                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 75.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.29500                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.400                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: PDB ENTRY 1Y0W                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.98                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.56                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 10% PEG 6000, 10 MM POTASSIUM            
REMARK 280  PHOSPHATE, 100 MM POTASSIUM CHLORIDE, 3 MM SODIUM DITHIONITE, 10    
REMARK 280  MG/ML HB, PH 7.0, BATCH, TEMPERATURE 298K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2                        
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       48.20000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       49.60000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       48.20000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       49.60000            
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 CRYSTALLOGRAPHIC ASYMMETRIC UNIT IN THIS ENTRY IS AN     
REMARK 300 ALPHA2BETA2 TETRAMER. THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT AND THE   
REMARK 300 BIOLOGICAL UNIT ARE EQUIVALENT                                       
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 10980 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 23990 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -105.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D                            
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   NH1  ARG B   104     O    HOH B   248              2.15            
REMARK 500   O    MET D     1     N    LEU D     3              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    VAL D 134   CB    VAL D 134   CG1    -0.127                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    LEU C 105   CA  -  CB  -  CG  ANGL. DEV. =  14.0 DEGREES          
REMARK 500    ASP D  73   CB  -  CG  -  OD2 ANGL. DEV. =   6.0 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    ALA A  19       38.44    -78.76                                   
REMARK 500    ASP A  75       37.64   -149.27                                   
REMARK 500    ASP C  75       49.64   -146.56                                   
REMARK 500    LYS C  90      -62.72   -106.84                                   
REMARK 500    HIS D   2       70.15    -46.45                                   
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 142  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  87   NE2                                                    
REMARK 620 2 HEM A 142   NA   99.4                                              
REMARK 620 3 HEM A 142   NB   97.2  85.9                                        
REMARK 620 4 HEM A 142   NC  104.9 155.5  87.4                                  
REMARK 620 5 HEM A 142   ND  110.8  85.7 151.7  89.2                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM B 147  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS B  92   NE2                                                    
REMARK 620 2 HEM B 147   NA   95.1                                              
REMARK 620 3 HEM B 147   NB  103.4  86.4                                        
REMARK 620 4 HEM B 147   NC  102.9 162.1  89.2                                  
REMARK 620 5 HEM B 147   ND   95.3  90.7 161.2  87.9                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM C 142  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS C  87   NE2                                                    
REMARK 620 2 HEM C 142   NA   96.4                                              
REMARK 620 3 HEM C 142   NB   98.0  87.0                                        
REMARK 620 4 HEM C 142   NC  107.5 155.9  86.7                                  
REMARK 620 5 HEM C 142   ND  107.9  85.8 153.8  89.6                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEM D 147  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS D  92   NE2                                                    
REMARK 620 2 HEM D 147   NA   99.9                                              
REMARK 620 3 HEM D 147   NB  103.0  90.0                                        
REMARK 620 4 HEM D 147   NC   95.6 164.0  90.5                                  
REMARK 620 5 HEM D 147   ND   93.5  88.4 163.4  86.7                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 142                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 147                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM C 142                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM D 147                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1Y0W   RELATED DB: PDB                                   
REMARK 900 BETAV1M DEOXY LOW-SALT 10 TEST SETS                                  
REMARK 900 RELATED ID: 1A0X   RELATED DB: PDB                                   
REMARK 900 BETAW37G DEOXY LOW-SALT. THE CURRENT ENTRY REPLACES PDB ENTRY 1A0X.  
DBREF  1Y4G A    1   141  UNP    P69905   HBA_HUMAN        1    141             
DBREF  1Y4G C    1   141  UNP    P69905   HBA_HUMAN        1    141             
DBREF  1Y4G B    1   146  UNP    P68871   HBB_HUMAN        1    146             
DBREF  1Y4G D    1   146  UNP    P68871   HBB_HUMAN        1    146             
SEQADV 1Y4G MET B    1  UNP  P68871    VAL     1 ENGINEERED MUTATION            
SEQADV 1Y4G GLY B   37  UNP  P68871    TRP    37 ENGINEERED MUTATION            
SEQADV 1Y4G MET D    1  UNP  P68871    VAL     1 ENGINEERED MUTATION            
SEQADV 1Y4G GLY D   37  UNP  P68871    TRP    37 ENGINEERED MUTATION            
SEQRES   1 A  141  VAL LEU SER PRO ALA ASP LYS THR ASN VAL LYS ALA ALA          
SEQRES   2 A  141  TRP GLY LYS VAL GLY ALA HIS ALA GLY GLU TYR GLY ALA          
SEQRES   3 A  141  GLU ALA LEU GLU ARG MET PHE LEU SER PHE PRO THR THR          
SEQRES   4 A  141  LYS THR TYR PHE PRO HIS PHE ASP LEU SER HIS GLY SER          
SEQRES   5 A  141  ALA GLN VAL LYS GLY HIS GLY LYS LYS VAL ALA ASP ALA          
SEQRES   6 A  141  LEU THR ASN ALA VAL ALA HIS VAL ASP ASP MET PRO ASN          
SEQRES   7 A  141  ALA LEU SER ALA LEU SER ASP LEU HIS ALA HIS LYS LEU          
SEQRES   8 A  141  ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU SER HIS CYS          
SEQRES   9 A  141  LEU LEU VAL THR LEU ALA ALA HIS LEU PRO ALA GLU PHE          
SEQRES  10 A  141  THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU ALA          
SEQRES  11 A  141  SER VAL SER THR VAL LEU THR SER LYS TYR ARG                  
SEQRES   1 B  146  MET HIS LEU THR PRO GLU GLU LYS SER ALA VAL THR ALA          
SEQRES   2 B  146  LEU TRP GLY LYS VAL ASN VAL ASP GLU VAL GLY GLY GLU          
SEQRES   3 B  146  ALA LEU GLY ARG LEU LEU VAL VAL TYR PRO GLY THR GLN          
SEQRES   4 B  146  ARG PHE PHE GLU SER PHE GLY ASP LEU SER THR PRO ASP          
SEQRES   5 B  146  ALA VAL MET GLY ASN PRO LYS VAL LYS ALA HIS GLY LYS          
SEQRES   6 B  146  LYS VAL LEU GLY ALA PHE SER ASP GLY LEU ALA HIS LEU          
SEQRES   7 B  146  ASP ASN LEU LYS GLY THR PHE ALA THR LEU SER GLU LEU          
SEQRES   8 B  146  HIS CYS ASP LYS LEU HIS VAL ASP PRO GLU ASN PHE ARG          
SEQRES   9 B  146  LEU LEU GLY ASN VAL LEU VAL CYS VAL LEU ALA HIS HIS          
SEQRES  10 B  146  PHE GLY LYS GLU PHE THR PRO PRO VAL GLN ALA ALA TYR          
SEQRES  11 B  146  GLN LYS VAL VAL ALA GLY VAL ALA ASN ALA LEU ALA HIS          
SEQRES  12 B  146  LYS TYR HIS                                                  
SEQRES   1 C  141  VAL LEU SER PRO ALA ASP LYS THR ASN VAL LYS ALA ALA          
SEQRES   2 C  141  TRP GLY LYS VAL GLY ALA HIS ALA GLY GLU TYR GLY ALA          
SEQRES   3 C  141  GLU ALA LEU GLU ARG MET PHE LEU SER PHE PRO THR THR          
SEQRES   4 C  141  LYS THR TYR PHE PRO HIS PHE ASP LEU SER HIS GLY SER          
SEQRES   5 C  141  ALA GLN VAL LYS GLY HIS GLY LYS LYS VAL ALA ASP ALA          
SEQRES   6 C  141  LEU THR ASN ALA VAL ALA HIS VAL ASP ASP MET PRO ASN          
SEQRES   7 C  141  ALA LEU SER ALA LEU SER ASP LEU HIS ALA HIS LYS LEU          
SEQRES   8 C  141  ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU SER HIS CYS          
SEQRES   9 C  141  LEU LEU VAL THR LEU ALA ALA HIS LEU PRO ALA GLU PHE          
SEQRES  10 C  141  THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU ALA          
SEQRES  11 C  141  SER VAL SER THR VAL LEU THR SER LYS TYR ARG                  
SEQRES   1 D  146  MET HIS LEU THR PRO GLU GLU LYS SER ALA VAL THR ALA          
SEQRES   2 D  146  LEU TRP GLY LYS VAL ASN VAL ASP GLU VAL GLY GLY GLU          
SEQRES   3 D  146  ALA LEU GLY ARG LEU LEU VAL VAL TYR PRO GLY THR GLN          
SEQRES   4 D  146  ARG PHE PHE GLU SER PHE GLY ASP LEU SER THR PRO ASP          
SEQRES   5 D  146  ALA VAL MET GLY ASN PRO LYS VAL LYS ALA HIS GLY LYS          
SEQRES   6 D  146  LYS VAL LEU GLY ALA PHE SER ASP GLY LEU ALA HIS LEU          
SEQRES   7 D  146  ASP ASN LEU LYS GLY THR PHE ALA THR LEU SER GLU LEU          
SEQRES   8 D  146  HIS CYS ASP LYS LEU HIS VAL ASP PRO GLU ASN PHE ARG          
SEQRES   9 D  146  LEU LEU GLY ASN VAL LEU VAL CYS VAL LEU ALA HIS HIS          
SEQRES  10 D  146  PHE GLY LYS GLU PHE THR PRO PRO VAL GLN ALA ALA TYR          
SEQRES  11 D  146  GLN LYS VAL VAL ALA GLY VAL ALA ASN ALA LEU ALA HIS          
SEQRES  12 D  146  LYS TYR HIS                                                  
HET    HEM  A 142      43                                                       
HET    HEM  B 147      43                                                       
HET    HEM  C 142      43                                                       
HET    HEM  D 147      43                                                       
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETSYN     HEM HEME                                                             
FORMUL   5  HEM    4(C34 H32 FE N4 O4)                                          
FORMUL   9  HOH   *175(H2 O)                                                    
HELIX    1   1 SER A    3  GLY A   18  1                                  16    
HELIX    2   2 HIS A   20  PHE A   36  1                                  17    
HELIX    3   3 PRO A   37  PHE A   43  5                                   7    
HELIX    4   4 SER A   52  HIS A   72  1                                  21    
HELIX    5   5 ASP A   75  LEU A   80  1                                   6    
HELIX    6   6 LEU A   80  LYS A   90  1                                  11    
HELIX    7   7 PRO A   95  LEU A  113  1                                  19    
HELIX    8   8 THR A  118  SER A  138  1                                  21    
HELIX    9   9 THR B    4  GLY B   16  1                                  13    
HELIX   10  10 ASN B   19  TYR B   35  1                                  17    
HELIX   11  11 PRO B   36  GLY B   46  5                                  11    
HELIX   12  12 THR B   50  GLY B   56  1                                   7    
HELIX   13  13 ASN B   57  ALA B   76  1                                  20    
HELIX   14  14 ASN B   80  PHE B   85  1                                   6    
HELIX   15  15 PHE B   85  LYS B   95  1                                  11    
HELIX   16  16 PRO B  100  GLY B  119  1                                  20    
HELIX   17  17 LYS B  120  PHE B  122  5                                   3    
HELIX   18  18 THR B  123  HIS B  143  1                                  21    
HELIX   19  19 SER C    3  GLY C   18  1                                  16    
HELIX   20  20 HIS C   20  PHE C   36  1                                  17    
HELIX   21  21 PRO C   37  PHE C   43  5                                   7    
HELIX   22  22 SER C   52  HIS C   72  1                                  21    
HELIX   23  23 ASP C   75  LEU C   80  1                                   6    
HELIX   24  24 LEU C   80  LYS C   90  1                                  11    
HELIX   25  25 PRO C   95  LEU C  113  1                                  19    
HELIX   26  26 THR C  118  SER C  138  1                                  21    
HELIX   27  27 THR D    4  GLY D   16  1                                  13    
HELIX   28  28 ASN D   19  TYR D   35  1                                  17    
HELIX   29  29 PRO D   36  GLY D   46  5                                  11    
HELIX   30  30 THR D   50  ASN D   57  1                                   8    
HELIX   31  31 ASN D   57  ALA D   76  1                                  20    
HELIX   32  32 ASN D   80  LYS D   95  1                                  16    
HELIX   33  33 PRO D  100  GLY D  119  1                                  20    
HELIX   34  34 LYS D  120  PHE D  122  5                                   3    
HELIX   35  35 THR D  123  HIS D  143  1                                  21    
LINK         NE2 HIS A  87                FE   HEM A 142     1555   1555  2.16  
LINK         NE2 HIS B  92                FE   HEM B 147     1555   1555  2.16  
LINK         NE2 HIS C  87                FE   HEM C 142     1555   1555  2.10  
LINK         NE2 HIS D  92                FE   HEM D 147     1555   1555  2.20  
SITE     1 AC1 14 TYR A  42  PHE A  43  HIS A  45  HIS A  58                    
SITE     2 AC1 14 LYS A  61  LEU A  83  HIS A  87  LEU A  91                    
SITE     3 AC1 14 VAL A  93  ASN A  97  PHE A  98  LEU A 101                    
SITE     4 AC1 14 LEU A 136  HOH A 219                                          
SITE     1 AC2 14 HIS A  72  PHE B  41  HIS B  63  LYS B  66                    
SITE     2 AC2 14 VAL B  67  LEU B  91  HIS B  92  LEU B  96                    
SITE     3 AC2 14 ASN B 102  PHE B 103  LEU B 141  HOH B 244                    
SITE     4 AC2 14 HOH B 262  HOH B 402                                          
SITE     1 AC3 18 LYS B  17  LYS B 120  TYR C  42  PHE C  43                    
SITE     2 AC3 18 HIS C  45  HIS C  58  LYS C  61  LEU C  83                    
SITE     3 AC3 18 LEU C  86  HIS C  87  LEU C  91  VAL C  93                    
SITE     4 AC3 18 ASN C  97  PHE C  98  LEU C 101  LEU C 136                    
SITE     5 AC3 18 HOH C 256  HOH C 437                                          
SITE     1 AC4  7 LYS C  56  HIS D  63  VAL D  67  HIS D  92                    
SITE     2 AC4  7 LEU D  96  ASN D 102  LEU D 141                               
CRYST1   96.400   99.200   66.300  90.00  90.00  90.00 P 21 21 2     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      0.010373  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010081  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015083        0.00000