HEADER OXYGEN TRANSPORT 11-MAR-09 3GKV TITLE X-RAY STRUCTURE OF AN INTERMEDIATE ALONG THE OXIDATION PATHWAY OF TITLE 2 TREMATOMUS BERNACCHII HEMOGLOBIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEMOGLOBIN SUBUNIT ALPHA; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: HEMOGLOBIN ALPHA CHAIN, ALPHA-GLOBIN; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: HEMOGLOBIN SUBUNIT BETA; COMPND 7 CHAIN: B; COMPND 8 SYNONYM: HEMOGLOBIN BETA CHAIN, BETA-GLOBIN SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: TREMATOMUS BERNACCHII; SOURCE 3 ORGANISM_COMMON: EMERALD ROCKCOD; SOURCE 4 ORGANISM_TAXID: 40690; SOURCE 5 MOL_ID: 2; SOURCE 6 ORGANISM_SCIENTIFIC: TREMATOMUS BERNACCHII; SOURCE 7 ORGANISM_COMMON: EMERALD ROCKCOD; SOURCE 8 ORGANISM_TAXID: 40690 KEYWDS HEMOGLOBIN, INTERMEDIATE QUATERNARY STRUCTURE, ACETYLATION, HEME, KEYWDS 2 IRON, METAL-BINDING, OXYGEN TRANSPORT, TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR A.MERLINO,L.VITAGLIANO,F.SICA,A.VERGARA,L.MAZZARELLA REVDAT 4 16-OCT-24 3GKV 1 REMARK REVDAT 3 01-NOV-23 3GKV 1 REMARK SEQADV LINK REVDAT 2 03-NOV-09 3GKV 1 JRNL REVDAT 1 05-MAY-09 3GKV 0 JRNL AUTH A.MERLINO,L.VITAGLIANO,B.D.HOWES,C.VERDE,G.DI PRISCO, JRNL AUTH 2 G.SMULEVICH,F.SICA,A.VERGARA JRNL TITL COMBINED CRYSTALLOGRAPHIC AND SPECTROSCOPIC ANALYSIS OF JRNL TITL 2 TREMATOMUS BERNACCHII HEMOGLOBIN HIGHLIGHTS ANALOGIES AND JRNL TITL 3 DIFFERENCES IN THE PECULIAR OXIDATION PATHWAY OF ANTARCTIC JRNL TITL 4 FISH HEMOGLOBINS JRNL REF BIOPOLYMERS V. 91 1117 2009 JRNL REFN ISSN 0006-3525 JRNL PMID 19373928 JRNL DOI 10.1002/BIP.21206 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH L.VITAGLIANO,A.VERGARA,G.BONOMI,A.MERLINO,C.VERDE, REMARK 1 AUTH 2 G.DI PRISCO,B.D.HOWES,G.SMULEVICH,L.MAZZARELLA REMARK 1 TITL SPECTROSCOPIC AND CRYSTALLOGRAPHIC CHARACTERIZATION OF A REMARK 1 TITL 2 TETRAMERIC HEMOGLOBIN OXIDATION REVEALS STRUCTURAL FEATURES REMARK 1 TITL 3 OF THE FUNCTIONAL INTERMEDIATE RELAXED/TENSE STATE REMARK 1 REF J.AM.CHEM.SOC. V. 130 10527 2008 REMARK 1 REFN ISSN 0002-7863 REMARK 1 PMID 18642904 REMARK 1 DOI 10.1021/JA803363P REMARK 2 REMARK 2 RESOLUTION. 1.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 28.25 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 75819 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) : 0.184 REMARK 3 FREE R VALUE : 0.211 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2242 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 90 REMARK 3 SOLVENT ATOMS : 241 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : NULL REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 3GKV COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 16-MAR-09. REMARK 100 THE DEPOSITION ID IS D_1000051987. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 19-MAR-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-1 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 : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 80090 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.400 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.03800 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: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 2PEG REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 62.24 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.26 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN CONCENTRATION OF 6MG/ML, 14% REMARK 280 MPEG 5000 IN 50MM TRIS/HCL BUFFER PH 7.6, LIQUID 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 43.44000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 43.82350 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 43.44000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 43.82350 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 13040 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 23730 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -111.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 2 -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 ASP A 76 82.40 -158.32 REMARK 500 ASN B 47 92.94 -38.18 REMARK 500 ASN B 47 109.82 -46.60 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 200 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 88 NE2 REMARK 620 2 HEM A 200 NA 92.7 REMARK 620 3 HEM A 200 NB 90.1 86.9 REMARK 620 4 HEM A 200 NC 90.7 175.8 90.6 REMARK 620 5 HEM A 200 ND 95.5 91.1 174.2 91.1 REMARK 620 6 CMO A 199 C 166.5 100.7 92.1 76.0 82.9 REMARK 620 7 HOH A1291 O 176.0 83.6 88.2 92.9 86.2 17.3 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 400 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 92 NE2 REMARK 620 2 HEM B 400 NA 88.2 REMARK 620 3 HEM B 400 NB 93.0 88.2 REMARK 620 4 HEM B 400 NC 91.6 176.8 88.6 REMARK 620 5 HEM B 400 ND 87.1 92.6 179.2 90.6 REMARK 620 6 CMO B 399 C 171.7 87.1 93.7 93.5 86.3 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 200 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 400 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO A 199 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO B 399 DBREF 3GKV A 1 142 UNP P80043 HBA_PAGBE 1 142 DBREF 3GKV B 1 146 UNP P80044 HBB_PAGBE 2 147 SEQADV 3GKV ACE A 0 UNP P80043 ACETYLATION SEQRES 1 A 143 ACE SER LEU SER ASP LYS ASP LYS ALA ALA VAL ARG ALA SEQRES 2 A 143 LEU TRP SER LYS ILE GLY LYS SER ALA ASP ALA ILE GLY SEQRES 3 A 143 ASN ASP ALA LEU SER ARG MET ILE VAL VAL TYR PRO GLN SEQRES 4 A 143 THR LYS THR TYR PHE SER HIS TRP PRO ASP VAL THR PRO SEQRES 5 A 143 GLY SER PRO HIS ILE LYS ALA HIS GLY LYS LYS VAL MET SEQRES 6 A 143 GLY GLY ILE ALA LEU ALA VAL SER LYS ILE ASP ASP LEU SEQRES 7 A 143 LYS THR GLY LEU MET GLU LEU SER GLU GLN HIS ALA TYR SEQRES 8 A 143 LYS LEU ARG VAL ASP PRO ALA ASN PHE LYS ILE LEU ASN SEQRES 9 A 143 HIS CYS ILE LEU VAL VAL ILE SER THR MET PHE PRO LYS SEQRES 10 A 143 GLU PHE THR PRO GLU ALA HIS VAL SER LEU ASP LYS PHE SEQRES 11 A 143 LEU SER GLY VAL ALA LEU ALA LEU ALA GLU ARG TYR ARG SEQRES 1 B 146 VAL GLU TRP THR ASP LYS GLU ARG SER ILE ILE SER ASP SEQRES 2 B 146 ILE PHE SER HIS MET ASP TYR ASP ASP ILE GLY PRO LYS SEQRES 3 B 146 ALA LEU SER ARG CYS LEU ILE VAL TYR PRO TRP THR GLN SEQRES 4 B 146 ARG HIS PHE SER GLY PHE GLY ASN LEU TYR ASN ALA GLU SEQRES 5 B 146 ALA ILE ILE GLY ASN ALA ASN VAL ALA ALA HIS GLY ILE SEQRES 6 B 146 LYS VAL LEU HIS GLY LEU ASP ARG GLY VAL LYS ASN MET SEQRES 7 B 146 ASP ASN ILE ALA ALA THR TYR ALA ASP LEU SER THR LEU SEQRES 8 B 146 HIS SER GLU LYS LEU HIS VAL ASP PRO ASP ASN PHE LYS SEQRES 9 B 146 LEU LEU SER ASP CYS ILE THR ILE VAL LEU ALA ALA LYS SEQRES 10 B 146 MET GLY HIS ALA PHE THR ALA GLU THR GLN GLY ALA PHE SEQRES 11 B 146 GLN LYS PHE LEU ALA VAL VAL VAL SER ALA LEU GLY LYS SEQRES 12 B 146 GLN TYR HIS HET ACE A 0 3 HET HEM A 200 43 HET CMO A 199 2 HET HEM B 400 43 HET CMO B 399 2 HETNAM ACE ACETYL GROUP HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM CMO CARBON MONOXIDE HETSYN HEM HEME FORMUL 1 ACE C2 H4 O FORMUL 3 HEM 2(C34 H32 FE N4 O4) FORMUL 4 CMO 2(C O) FORMUL 7 HOH *241(H2 O) HELIX 1 1 SER A 3 GLY A 18 1 16 HELIX 2 2 SER A 20 TYR A 36 1 17 HELIX 3 3 PRO A 37 SER A 44 5 8 HELIX 4 4 SER A 53 LYS A 73 1 21 HELIX 5 5 ASP A 76 LEU A 81 1 6 HELIX 6 6 LEU A 81 TYR A 90 1 10 HELIX 7 7 ASP A 95 ALA A 97 5 3 HELIX 8 8 ASN A 98 PHE A 114 1 17 HELIX 9 9 THR A 119 ALA A 138 1 20 HELIX 10 10 THR B 4 HIS B 17 1 14 HELIX 11 11 ASP 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 ASN B 77 1 21 HELIX 15 15 ASN B 80 TYR B 85 1 6 HELIX 16 16 TYR B 85 LYS B 95 1 11 HELIX 17 17 PRO B 100 GLY B 119 1 20 HELIX 18 18 HIS B 120 PHE B 122 5 3 HELIX 19 19 THR B 123 LYS B 143 1 21 LINK C ACE A 0 N SER A 1 1555 1555 1.32 LINK NE2 HIS A 88 FE HEM A 200 1555 1555 2.06 LINK C CMO A 199 FE HEM A 200 1555 1555 1.84 LINK FE HEM A 200 O HOH A1291 1555 1555 1.74 LINK NE2 HIS B 92 FE HEM B 400 1555 1555 2.03 LINK C CMO B 399 FE HEM B 400 1555 1555 1.86 SITE 1 AC1 17 TYR A 42 PHE A 43 HIS A 45 TRP A 46 SITE 2 AC1 17 HIS A 59 LYS A 62 GLN A 87 HIS A 88 SITE 3 AC1 17 LEU A 92 VAL A 94 ASN A 98 LEU A 102 SITE 4 AC1 17 ASN A 103 LEU A 137 CMO A 199 HOH A1103 SITE 5 AC1 17 HOH A1291 SITE 1 AC2 13 HIS B 41 PHE B 42 HIS B 63 LYS B 66 SITE 2 AC2 13 HIS B 92 LEU B 96 VAL B 98 ASN B 102 SITE 3 AC2 13 PHE B 103 LEU B 106 LEU B 141 CMO B 399 SITE 4 AC2 13 HOH B1265 SITE 1 AC3 6 LEU A 29 HIS A 59 VAL A 63 HEM A 200 SITE 2 AC3 6 HOH A1290 HOH A1291 SITE 1 AC4 3 HIS B 63 VAL B 67 HEM B 400 CRYST1 86.880 87.647 55.339 90.00 100.17 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 0.011510 0.000000 0.002066 0.00000 SCALE2 0.000000 0.011409 0.000000 0.00000 SCALE3 0.000000 0.000000 0.018359 0.00000 HETATM 1 C ACE A 0 4.035 -16.171 -4.935 1.00 17.88 C HETATM 2 O ACE A 0 5.028 -16.008 -4.190 1.00 18.86 O HETATM 3 CH3 ACE A 0 3.328 -15.009 -5.602 1.00 17.59 C