PDB Short entry for 1U55 HEADER SIGNALING PROTEIN 27-JUL-04 1U55 TITLE CRYSTAL STRUCTURE OF AN OXYGEN BINDING H-NOX DOMAIN RELATED TO SOLUBLE TITLE 2 GUANYLATE CYCLASES (OXYGEN COMPLEX) COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEME-BASED METHYL-ACCEPTING CHEMOTAXIS PROTEIN; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: H-NOX DOMAIN; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: THERMOANAEROBACTER TENGCONGENSIS; SOURCE 3 ORGANISM_TAXID: 119072; SOURCE 4 GENE: TAR4; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: TUNER BL21(DE3) PLYSS; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET20B KEYWDS H-NOX DOMAIN, HEME, OXYGEN SENSOR, SIGNAL TRANSDUCTION, CHEMOTAXIS, KEYWDS 2 SIGNALING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR P.PELLICENA,D.S.KAROW,E.M.BOON,M.A.MARLETTA,J.KURIYAN REVDAT 3 23-AUG-23 1U55 1 REMARK LINK REVDAT 2 24-FEB-09 1U55 1 VERSN REVDAT 1 31-AUG-04 1U55 0 JRNL AUTH P.PELLICENA,D.S.KAROW,E.M.BOON,M.A.MARLETTA,J.KURIYAN JRNL TITL CRYSTAL STRUCTURE OF AN OXYGEN-BINDING HEME DOMAIN RELATED JRNL TITL 2 TO SOLUBLE GUANYLATE CYCLASES. JRNL REF PROC.NATL.ACAD.SCI.USA V. 101 12854 2004 JRNL REFN ISSN 0027-8424 JRNL PMID 15326296 JRNL DOI 10.1073/PNAS.0405188101 REMARK 2 REMARK 2 RESOLUTION. 1.77 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.77 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 29.97 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 849353.050 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 94.2 REMARK 3 NUMBER OF REFLECTIONS : 44407 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 SET) : 0.227 REMARK 3 FREE R VALUE : 0.257 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 6.000 REMARK 3 FREE R VALUE TEST SET COUNT : 2661 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.005 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.77 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.81 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 24.30 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2011 REMARK 3 BIN R VALUE (WORKING SET) : 0.3420 REMARK 3 BIN FREE R VALUE : 0.3900 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.80 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 124 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.035 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3081 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 91 REMARK 3 SOLVENT ATOMS : 268 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 31.20 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 43.60 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.50000 REMARK 3 B22 (A**2) : 0.38000 REMARK 3 B33 (A**2) : -2.88000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -1.04000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.25 REMARK 3 ESD FROM SIGMAA (A) : 0.19 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.28 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.21 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.600 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.20 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.970 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.400 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.180 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.860 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.810 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.39 REMARK 3 BSOL : 61.30 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : HEME_PP_15JUN04.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : CHL.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : HEME_PP_15JUN04.TOP REMARK 3 TOPOLOGY FILE 3 : WATER.TOP REMARK 3 TOPOLOGY FILE 4 : CHL.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1U55 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-AUG-04. REMARK 100 THE DEPOSITION ID IS D_1000023257. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 10-DEC-03 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 8.2.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.00 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL SI(111) REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 46008 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.770 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 (%) : 96.6 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04500 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 26.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.77 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.82 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.5 REMARK 200 DATA REDUNDANCY IN SHELL : 2.50 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.31200 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: PDB ENTRY 1U4H REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.70 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.80 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 3350, NACL, PH 6, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 293K 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 45.74000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 63.49500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 45.74000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 63.49500 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: B REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 ASN B 188 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 GLU B 184 CG CD OE1 OE2 REMARK 470 LYS B 186 CG CD CE NZ REMARK 470 LYS B 187 CG CD CE NZ 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 MET A 108 45.06 -98.06 REMARK 500 MET B 108 -60.33 -130.85 REMARK 500 LYS B 134 32.72 -144.52 REMARK 500 MET B 137 62.86 -113.79 REMARK 500 GLU B 184 142.52 170.16 REMARK 500 TYR B 185 77.64 -67.28 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 500 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 102 NE2 REMARK 620 2 HEM A 500 NA 84.9 REMARK 620 3 HEM A 500 NB 90.3 89.1 REMARK 620 4 HEM A 500 NC 90.5 175.1 89.3 REMARK 620 5 HEM A 500 ND 88.3 90.6 178.5 90.9 REMARK 620 6 OXY A 501 O1 178.6 95.7 88.4 88.9 93.1 REMARK 620 7 OXY A 501 O2 154.4 71.4 98.5 113.4 82.7 26.6 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 502 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 102 NE2 REMARK 620 2 HEM B 502 NA 87.7 REMARK 620 3 HEM B 502 NB 89.0 91.0 REMARK 620 4 HEM B 502 NC 93.4 178.8 89.4 REMARK 620 5 HEM B 502 ND 95.1 88.9 176.0 90.6 REMARK 620 6 OXY B 503 O1 178.6 92.9 89.7 85.9 86.2 REMARK 620 7 OXY B 503 O2 161.9 74.4 94.2 104.4 81.9 19.0 REMARK 620 N 1 2 3 4 5 6 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 189 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 500 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OXY A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 502 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OXY B 503 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1U4H RELATED DB: PDB REMARK 900 RELATED ID: 1U56 RELATED DB: PDB DBREF 1U55 A 1 188 UNP Q8RBX6 Q8RBX6_THETN 1 188 DBREF 1U55 B 1 188 UNP Q8RBX6 Q8RBX6_THETN 1 188 SEQRES 1 A 188 MET LYS GLY THR ILE VAL GLY THR TRP ILE LYS THR LEU SEQRES 2 A 188 ARG ASP LEU TYR GLY ASN ASP VAL VAL ASP GLU SER LEU SEQRES 3 A 188 LYS SER VAL GLY TRP GLU PRO ASP ARG VAL ILE THR PRO SEQRES 4 A 188 LEU GLU ASP ILE ASP ASP ASP GLU VAL ARG ARG ILE PHE SEQRES 5 A 188 ALA LYS VAL SER GLU LYS THR GLY LYS ASN VAL ASN GLU SEQRES 6 A 188 ILE TRP ARG GLU VAL GLY ARG GLN ASN ILE LYS THR PHE SEQRES 7 A 188 SER GLU TRP PHE PRO SER TYR PHE ALA GLY ARG ARG LEU SEQRES 8 A 188 VAL ASN PHE LEU MET MET MET ASP GLU VAL HIS LEU GLN SEQRES 9 A 188 LEU THR LYS MET ILE LYS GLY ALA THR PRO PRO ARG LEU SEQRES 10 A 188 ILE ALA LYS PRO VAL ALA LYS ASP ALA ILE GLU MET GLU SEQRES 11 A 188 TYR VAL SER LYS ARG LYS MET TYR ASP TYR PHE LEU GLY SEQRES 12 A 188 LEU ILE GLU GLY SER SER LYS PHE PHE LYS GLU GLU ILE SEQRES 13 A 188 SER VAL GLU GLU VAL GLU ARG GLY GLU LYS ASP GLY PHE SEQRES 14 A 188 SER ARG LEU LYS VAL ARG ILE LYS PHE LYS ASN PRO VAL SEQRES 15 A 188 PHE GLU TYR LYS LYS ASN SEQRES 1 B 188 MET LYS GLY THR ILE VAL GLY THR TRP ILE LYS THR LEU SEQRES 2 B 188 ARG ASP LEU TYR GLY ASN ASP VAL VAL ASP GLU SER LEU SEQRES 3 B 188 LYS SER VAL GLY TRP GLU PRO ASP ARG VAL ILE THR PRO SEQRES 4 B 188 LEU GLU ASP ILE ASP ASP ASP GLU VAL ARG ARG ILE PHE SEQRES 5 B 188 ALA LYS VAL SER GLU LYS THR GLY LYS ASN VAL ASN GLU SEQRES 6 B 188 ILE TRP ARG GLU VAL GLY ARG GLN ASN ILE LYS THR PHE SEQRES 7 B 188 SER GLU TRP PHE PRO SER TYR PHE ALA GLY ARG ARG LEU SEQRES 8 B 188 VAL ASN PHE LEU MET MET MET ASP GLU VAL HIS LEU GLN SEQRES 9 B 188 LEU THR LYS MET ILE LYS GLY ALA THR PRO PRO ARG LEU SEQRES 10 B 188 ILE ALA LYS PRO VAL ALA LYS ASP ALA ILE GLU MET GLU SEQRES 11 B 188 TYR VAL SER LYS ARG LYS MET TYR ASP TYR PHE LEU GLY SEQRES 12 B 188 LEU ILE GLU GLY SER SER LYS PHE PHE LYS GLU GLU ILE SEQRES 13 B 188 SER VAL GLU GLU VAL GLU ARG GLY GLU LYS ASP GLY PHE SEQRES 14 B 188 SER ARG LEU LYS VAL ARG ILE LYS PHE LYS ASN PRO VAL SEQRES 15 B 188 PHE GLU TYR LYS LYS ASN HET HEM A 500 43 HET OXY A 501 2 HET CL B 189 1 HET HEM B 502 43 HET OXY B 503 2 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM OXY OXYGEN MOLECULE HETNAM CL CHLORIDE ION HETSYN HEM HEME FORMUL 3 HEM 2(C34 H32 FE N4 O4) FORMUL 4 OXY 2(O2) FORMUL 5 CL CL 1- FORMUL 8 HOH *268(H2 O) HELIX 1 1 LYS A 2 GLY A 18 1 17 HELIX 2 2 GLY A 18 VAL A 29 1 12 HELIX 3 3 ASP A 44 GLY A 60 1 17 HELIX 4 4 ASN A 62 PHE A 82 1 21 HELIX 5 5 PRO A 83 PHE A 86 5 4 HELIX 6 6 ARG A 90 LYS A 107 1 18 HELIX 7 7 MET A 137 LYS A 153 1 17 HELIX 8 8 LYS B 2 SER B 28 1 27 HELIX 9 9 ASP B 44 GLY B 60 1 17 HELIX 10 10 ASN B 62 PHE B 82 1 21 HELIX 11 11 PRO B 83 PHE B 86 5 4 HELIX 12 12 ARG B 90 GLN B 104 1 15 HELIX 13 13 MET B 137 LYS B 153 1 17 SHEET 1 A 4 ALA A 119 ALA A 123 0 SHEET 2 A 4 ALA A 126 SER A 133 -1 O ALA A 126 N VAL A 122 SHEET 3 A 4 PHE A 169 PHE A 178 -1 O LEU A 172 N TYR A 131 SHEET 4 A 4 ILE A 156 LYS A 166 -1 N GLU A 159 O ARG A 175 SHEET 1 B 4 ALA B 119 ALA B 123 0 SHEET 2 B 4 ALA B 126 SER B 133 -1 O GLU B 128 N LYS B 120 SHEET 3 B 4 PHE B 169 PHE B 178 -1 O LEU B 172 N TYR B 131 SHEET 4 B 4 ILE B 156 LYS B 166 -1 N GLU B 162 O LYS B 173 LINK NE2 HIS A 102 FE HEM A 500 1555 1555 2.12 LINK FE HEM A 500 O1 OXY A 501 1555 1555 1.84 LINK FE HEM A 500 O2 OXY A 501 1555 1555 2.66 LINK NE2 HIS B 102 FE HEM B 502 1555 1555 2.02 LINK FE HEM B 502 O1 OXY B 503 1555 1555 1.76 LINK FE HEM B 502 O2 OXY B 503 1555 1555 2.82 SITE 1 AC1 2 LYS A 2 SER B 84 SITE 1 AC2 23 MET A 1 LYS A 2 ILE A 5 PHE A 78 SITE 2 AC2 23 TYR A 85 PHE A 86 MET A 98 HIS A 102 SITE 3 AC2 23 LEU A 105 THR A 106 THR A 113 PRO A 114 SITE 4 AC2 23 PRO A 115 TYR A 131 SER A 133 ARG A 135 SITE 5 AC2 23 MET A 137 TYR A 140 LEU A 144 ILE A 145 SITE 6 AC2 23 OXY A 501 HOH A 521 HOH A 581 SITE 1 AC3 4 PHE A 78 TYR A 140 LEU A 144 HEM A 500 SITE 1 AC4 21 MET B 1 ILE B 5 PHE B 78 TYR B 85 SITE 2 AC4 21 PHE B 94 MET B 98 HIS B 102 LEU B 105 SITE 3 AC4 21 ALA B 112 THR B 113 PRO B 114 PRO B 115 SITE 4 AC4 21 LEU B 117 TYR B 131 SER B 133 ARG B 135 SITE 5 AC4 21 MET B 137 PHE B 141 LEU B 144 ILE B 145 SITE 6 AC4 21 OXY B 503 SITE 1 AC5 4 ILE B 5 PHE B 78 TYR B 140 HEM B 502 CRYST1 91.480 126.990 42.572 90.00 94.33 90.00 C 1 2 1 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 0.010931 0.000000 0.000828 0.00000 SCALE2 0.000000 0.007875 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023557 0.00000