PDB Short entry for 1NS6 HEADER OXYGEN STORAGE/TRANSPORT 27-JAN-03 1NS6 TITLE THE 2.1A STRUCTURE OF HORSE (ALPHA HEMICHROME/BETA MET) HEMOGLOBIN AT TITLE 2 PH 5.4 COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEMOGLOBIN ALPHA SUBUNIT; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: ALPHA SUBUNIT; COMPND 5 OTHER_DETAILS: PH 5.4 HEMICHROME STRUCTURE; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: HEMOGLOBIN BETA SUBUNIT; COMPND 8 CHAIN: B; COMPND 9 FRAGMENT: BETA SUBUNIT; COMPND 10 OTHER_DETAILS: PH 5.4 HEMICHROME STRUCTURE SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: EQUUS CABALLUS; SOURCE 3 ORGANISM_COMMON: HORSE; SOURCE 4 ORGANISM_TAXID: 9796; SOURCE 5 MOL_ID: 2; SOURCE 6 ORGANISM_SCIENTIFIC: EQUUS CABALLUS; SOURCE 7 ORGANISM_COMMON: HORSE; SOURCE 8 ORGANISM_TAXID: 9796 KEYWDS HEMICHROME, BISIMIDAZOLE ALPHA HEME, AQUOMET BETA HEME, GLOBIN FOLD, KEYWDS 2 OXYGEN STORAGE-TRANSPORT COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR V.L.ROBINSON,B.B.SMITH,A.ARNONE REVDAT 4 16-AUG-23 1NS6 1 REMARK SEQADV REVDAT 3 24-JUL-19 1NS6 1 REMARK REVDAT 2 24-FEB-09 1NS6 1 VERSN REVDAT 1 14-OCT-03 1NS6 0 JRNL AUTH V.L.ROBINSON,B.B.SMITH,A.ARNONE JRNL TITL A PH-DEPENDENT AQUOMET-TO-HEMICHROME TRANSITION IN JRNL TITL 2 CRYSTALLINE HORSE METHEMOGLOBIN JRNL REF BIOCHEMISTRY V. 42 10113 2003 JRNL REFN ISSN 0006-2960 JRNL PMID 12939139 JRNL DOI 10.1021/BI030059T REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.BOYES-WATSON,E.DAVIDSON,M.F.PERUTZ REMARK 1 TITL AN X-RAY STUDY OF HORSE METHAEMOGLOBIN. I REMARK 1 REF PROC.R.SOC.LONDON,SER.B V. 191 83 1947 REMARK 1 REFN ISSN 0080-4649 REMARK 1 REFERENCE 2 REMARK 1 AUTH M.F.PERUTZ REMARK 1 TITL THE STRUCTURE OF HAEMOGLOBIN. III. DIRECT DETERMINATION OF REMARK 1 TITL 2 THE MOLECULAR TRANSFORM REMARK 1 REF PROC.R.SOC.LONDON,SER.B V. 225 264 1954 REMARK 1 REFN ISSN 0080-4649 REMARK 2 REMARK 2 RESOLUTION. 2.05 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) : 2.05 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 54.23 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.5 REMARK 3 NUMBER OF REFLECTIONS : 21824 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.163 REMARK 3 R VALUE (WORKING SET) : 0.163 REMARK 3 FREE R VALUE : 0.188 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT : 2160 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) : 2.05 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.10 REMARK 3 REFLECTION IN BIN (WORKING SET) : 838 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE SET COUNT : 0 REMARK 3 BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2203 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 86 REMARK 3 SOLVENT ATOMS : 84 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 18.38 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.02000 REMARK 3 B22 (A**2) : 0.08000 REMARK 3 B33 (A**2) : -0.10000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.04000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.149 REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.136 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.946 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.953 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2384 ; 0.015 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): 2095 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3225 ; 1.244 ; 2.060 REMARK 3 BOND ANGLES OTHERS (DEGREES): 4862 ; 0.732 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 285 ; 3.282 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 386 ;15.069 ;15.000 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): 345 ; 0.076 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2608 ; 0.005 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 454 ; 0.003 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 521 ; 0.228 ; 0.300 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 1817 ; 0.187 ; 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): 62 ; 0.168 ; 0.500 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): 10 ; 0.275 ; 0.300 REMARK 3 SYMMETRY VDW OTHERS (A): 29 ; 0.135 ; 0.300 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 10 ; 0.100 ; 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): 1427 ; 0.778 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2265 ; 1.599 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 957 ; 2.613 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 960 ; 4.499 ; 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 1NS6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 18-FEB-03. REMARK 100 THE DEPOSITION ID IS D_1000018158. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-SEP-97 REMARK 200 TEMPERATURE (KELVIN) : 298 REMARK 200 PH : 5.4 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 : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : UCSD MARK II REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SDMS REMARK 200 DATA SCALING SOFTWARE : SDMS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 21884 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.040 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.2 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.05300 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL 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: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1G0B REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.10 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.76 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.5M AMMONIUM SULFATE, 0.35M AMMONIUM REMARK 280 PHOSPHATE THEN SOAKED TO PH 5.4 IN SOLUTIONS OF 3.35 M AMMONIUM REMARK 280 SULFATE BUFFERED WITH 0.2M AMMONIUM PHOSPHATE, VAPOR DIFFUSION, REMARK 280 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 54.05500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 31.66500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 54.05500 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 31.66500 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 300 REMARK: THE BIOLOGICAL ASSEMBLY (TETRAMER) IS GENERATED FROM THE REMARK 300 DIMER IN THE ASYMETRIC UNIT BY THE OPERATION: -X, Y, -Z. 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 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 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 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 SER A 52 -14.90 -148.35 REMARK 500 HIS B 77 47.03 -141.19 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 58 NE2 REMARK 620 2 HEM A 142 NA 87.8 REMARK 620 3 HEM A 142 NB 96.3 88.9 REMARK 620 4 HEM A 142 NC 94.0 177.5 89.2 REMARK 620 5 HEM A 142 ND 84.0 90.9 179.6 91.0 REMARK 620 6 HIS A 87 NE2 172.7 86.6 88.2 91.8 91.5 REMARK 620 N 1 2 3 4 5 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 87.2 REMARK 620 3 HEM B 147 NB 87.7 90.9 REMARK 620 4 HEM B 147 NC 91.8 178.3 87.7 REMARK 620 5 HEM B 147 ND 92.5 88.3 179.2 93.1 REMARK 620 6 HOH B 150 O 177.7 93.9 90.3 87.0 89.5 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 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 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1NS9 RELATED DB: PDB REMARK 900 PARTNERING EQUINE ALPHA HEMICHROME/BETA AQUOMET HEMOGLOBIN REMARK 900 STRUCTURE AT PH 7.1 DBREF 1NS6 A 1 141 UNP P01958 HBA_HORSE 1 141 DBREF 1NS6 B 1 146 UNP P02062 HBB_HORSE 1 146 SEQADV 1NS6 ASP A 82 UNP P01958 ASN 82 CONFLICT SEQADV 1NS6 ASN A 85 UNP P01958 ASP 85 CONFLICT SEQRES 1 A 141 VAL LEU SER ALA ALA ASP LYS THR ASN VAL LYS ALA ALA SEQRES 2 A 141 TRP SER LYS VAL GLY GLY HIS ALA GLY GLU TYR GLY ALA SEQRES 3 A 141 GLU ALA LEU GLU ARG MET PHE LEU GLY 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 ALA HIS GLY LYS LYS VAL GLY ASP ALA SEQRES 6 A 141 LEU THR LEU ALA VAL GLY HIS LEU ASP ASP LEU PRO GLY SEQRES 7 A 141 ALA LEU SER ASP LEU SER ASN 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 SER THR LEU ALA VAL HIS LEU PRO ASN ASP PHE SEQRES 10 A 141 THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU SER SEQRES 11 A 141 SER VAL SER THR VAL LEU THR SER LYS TYR ARG SEQRES 1 B 146 VAL GLN LEU SER GLY GLU GLU LYS ALA ALA VAL LEU ALA SEQRES 2 B 146 LEU TRP ASP LYS VAL ASN GLU GLU GLU VAL GLY GLY GLU SEQRES 3 B 146 ALA LEU GLY ARG LEU LEU VAL VAL TYR PRO TRP THR GLN SEQRES 4 B 146 ARG PHE PHE ASP SER PHE GLY ASP LEU SER ASN PRO GLY SEQRES 5 B 146 ALA VAL MET GLY ASN PRO LYS VAL LYS ALA HIS GLY LYS SEQRES 6 B 146 LYS VAL LEU HIS SER PHE GLY GLU GLY VAL HIS HIS LEU SEQRES 7 B 146 ASP ASN LEU LYS GLY THR PHE ALA ALA 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 VAL VAL LEU ALA ARG HIS SEQRES 10 B 146 PHE GLY LYS ASP PHE THR PRO GLU LEU GLN ALA SER 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 HET HEM A 142 43 HET HEM B 147 43 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 3 HEM 2(C34 H32 FE N4 O4) FORMUL 5 HOH *84(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 PRO A 44 HIS A 50 1 7 HELIX 5 5 SER A 52 GLY A 71 1 20 HELIX 6 6 HIS A 72 ASP A 74 5 3 HELIX 7 7 ASP A 75 ALA A 88 1 14 HELIX 8 8 PRO A 95 LEU A 113 1 19 HELIX 9 9 THR A 118 THR A 137 1 20 HELIX 10 10 SER B 4 ASP B 16 1 13 HELIX 11 11 ASN B 19 TYR B 35 1 17 HELIX 12 12 PRO B 36 GLY B 46 5 11 HELIX 13 13 ASN B 50 ASN B 57 1 8 HELIX 14 14 ASN B 57 HIS B 76 1 20 HELIX 15 15 ASN B 80 LYS B 95 1 16 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 ALA B 142 1 20 HELIX 19 19 HIS B 143 HIS B 146 5 4 LINK NE2 HIS A 58 FE HEM A 142 1555 1555 2.18 LINK NE2 HIS A 87 FE HEM A 142 1555 1555 2.11 LINK NE2 HIS B 92 FE HEM B 147 1555 1555 2.16 LINK FE HEM B 147 O HOH B 150 1555 1555 2.04 SITE 1 AC1 11 TYR A 42 PHE A 43 HIS A 58 LYS A 61 SITE 2 AC1 11 ALA A 65 LEU A 86 HIS A 87 LEU A 91 SITE 3 AC1 11 PHE A 98 LEU A 101 LEU A 136 SITE 1 AC2 11 PHE B 41 PHE B 42 HIS B 63 HIS B 92 SITE 2 AC2 11 LEU B 96 VAL B 98 ASN B 102 PHE B 103 SITE 3 AC2 11 LEU B 106 LEU B 141 HOH B 150 CRYST1 108.110 63.330 53.850 90.00 84.72 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 0.009250 0.000000 -0.000855 0.00000 SCALE2 0.000000 0.015790 0.000000 0.00000 SCALE3 0.000000 0.000000 0.018649 0.00000