HEADER OXYGEN TRANSPORT 15-DEC-17 6BWU TITLE CRYSTAL STRUCTURE OF CARBOXYHEMOGLOBIN IN COMPLEX WITH BETA CYS93 TITLE 2 MODIFYING AGENT, TD3 COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEMOGLOBIN SUBUNIT ALPHA; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ALPHA-GLOBIN,HEMOGLOBIN ALPHA CHAIN; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: HEMOGLOBIN SUBUNIT BETA; COMPND 7 CHAIN: B; COMPND 8 SYNONYM: BETA-GLOBIN,HEMOGLOBIN BETA CHAIN SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 MOL_ID: 2; SOURCE 6 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 7 ORGANISM_COMMON: HUMAN; SOURCE 8 ORGANISM_TAXID: 9606 KEYWDS HEMOGLOBIN, ANTISICKLING, ALLOSTERIC EFFECTOR, TD3, OXYGEN TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR F.N.MUSAYEV,R.M.SAFO,M.K.SAFO REVDAT 5 04-OCT-23 6BWU 1 LINK REVDAT 4 04-DEC-19 6BWU 1 REMARK REVDAT 3 16-JAN-19 6BWU 1 JRNL REVDAT 2 17-JAN-18 6BWU 1 REMARK REVDAT 1 03-JAN-18 6BWU 0 JRNL AUTH A.NAKAGAWA,M.FERRARI,G.SCHLEIFER,M.K.COOPER,C.LIU,B.YU, JRNL AUTH 2 L.BERRA,E.S.KLINGS,R.S.SAFO,Q.CHEN,F.N.MUSAYEV,M.K.SAFO, JRNL AUTH 3 O.ABDULMALIK,D.B.BLOCH,W.M.ZAPOL JRNL TITL A TRIAZOLE DISULFIDE COMPOUND INCREASES THE AFFINITY OF JRNL TITL 2 HEMOGLOBIN FOR OXYGEN AND REDUCES THE SICKLING OF HUMAN JRNL TITL 3 SICKLE CELLS. JRNL REF MOL. PHARM. V. 15 1954 2018 JRNL REFN ESSN 1543-8392 JRNL PMID 29634905 JRNL DOI 10.1021/ACS.MOLPHARMACEUT.8B00108 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.9_1692 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 12.81 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 3 NUMBER OF REFLECTIONS : 19500 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.202 REMARK 3 R VALUE (WORKING SET) : 0.198 REMARK 3 FREE R VALUE : 0.265 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.040 REMARK 3 FREE R VALUE TEST SET COUNT : 982 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 12.8118 - 3.7974 0.99 2828 139 0.1649 0.2237 REMARK 3 2 3.7974 - 3.0272 1.00 2685 161 0.1930 0.2651 REMARK 3 3 3.0272 - 2.6484 1.00 2626 149 0.2282 0.2850 REMARK 3 4 2.6484 - 2.4080 1.00 2619 139 0.2181 0.2898 REMARK 3 5 2.4080 - 2.2364 1.00 2618 118 0.2245 0.3269 REMARK 3 6 2.2364 - 2.1051 1.00 2580 148 0.2208 0.2779 REMARK 3 7 2.1051 - 2.0001 0.99 2562 128 0.2450 0.3073 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.230 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 24.760 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.010 2317 REMARK 3 ANGLE : 1.072 3174 REMARK 3 CHIRALITY : 0.040 346 REMARK 3 PLANARITY : 0.005 397 REMARK 3 DIHEDRAL : 13.914 782 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 6BWU COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 18-DEC-17. REMARK 100 THE DEPOSITION ID IS D_1000231730. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-NOV-17 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.6 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 MICROMAX-007 HF REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54057 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : VARIMAX-HF ARC OPTICS REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER X 4M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : CRYSALISPRO REMARK 200 DATA SCALING SOFTWARE : CRYSALISPRO REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19567 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 51.357 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 200 DATA REDUNDANCY : 9.400 REMARK 200 R MERGE (I) : 0.06300 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 31.6600 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.08 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.5 REMARK 200 DATA REDUNDANCY IN SHELL : 6.10 REMARK 200 R MERGE FOR SHELL (I) : 0.42900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.190 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: 1LJW REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.09 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 3.2M NA/K PHOSPHATE, PH 6.6, BATCH REMARK 280 MODE, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 95.98300 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 26.65000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 26.65000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 47.99150 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 26.65000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 26.65000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 143.97450 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 26.65000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 26.65000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 47.99150 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 26.65000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 26.65000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 143.97450 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 95.98300 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: 11370 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 23380 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 0.000000 -1.000000 0.000000 53.30000 REMARK 350 BIOMT2 2 -1.000000 0.000000 0.000000 53.30000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 95.98300 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 ARG A 141 REMARK 465 LYS B 144 REMARK 465 TYR B 145 REMARK 465 HIS B 146 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 O HOH A 304 O HOH A 309 2.16 REMARK 500 OD1 ASP A 47 OG SER A 49 2.18 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 6.54 -69.49 REMARK 500 ASP A 75 56.17 -146.56 REMARK 500 LEU A 113 73.56 -116.86 REMARK 500 LYS A 139 34.89 -95.83 REMARK 500 ASN B 19 95.39 -69.65 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 202 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 87 NE2 REMARK 620 2 HEM A 202 NA 82.9 REMARK 620 3 HEM A 202 NB 82.6 89.2 REMARK 620 4 HEM A 202 NC 89.6 171.7 86.4 REMARK 620 5 HEM A 202 ND 90.9 92.7 172.9 90.8 REMARK 620 6 CMO A 201 C 168.6 101.1 86.8 85.7 99.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 202 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 92 NE2 REMARK 620 2 HEM B 202 NA 76.5 REMARK 620 3 HEM B 202 NB 79.3 88.2 REMARK 620 4 HEM B 202 NC 91.0 167.5 88.3 REMARK 620 5 HEM B 202 ND 92.1 93.3 170.7 88.3 REMARK 620 6 CMO B 201 C 170.9 101.7 91.7 90.4 97.0 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 CMO A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue HEM A 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CMO B 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue HEM B 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue EBJ B 203 DBREF 6BWU A 1 141 UNP P69905 HBA_HUMAN 2 142 DBREF 6BWU B 1 146 UNP P68871 HBB_HUMAN 2 147 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 VAL 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 TRP 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 HET CMO A 201 2 HET HEM A 202 43 HET CMO B 201 2 HET HEM B 202 43 HET EBJ B 203 6 HETNAM CMO CARBON MONOXIDE HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM EBJ 1H-1,2,3-TRIAZOLE-5-THIOL HETSYN HEM HEME FORMUL 3 CMO 2(C O) FORMUL 4 HEM 2(C34 H32 FE N4 O4) FORMUL 7 EBJ C2 H3 N3 S FORMUL 8 HOH *172(H2 O) HELIX 1 AA1 SER A 3 GLY A 18 1 16 HELIX 2 AA2 HIS A 20 PHE A 36 1 17 HELIX 3 AA3 PRO A 37 PHE A 43 5 7 HELIX 4 AA4 SER A 52 HIS A 72 1 21 HELIX 5 AA5 ASP A 75 LEU A 80 1 6 HELIX 6 AA6 LEU A 80 HIS A 89 1 10 HELIX 7 AA7 PRO A 95 ALA A 111 1 17 HELIX 8 AA8 THR A 118 THR A 137 1 20 HELIX 9 AA9 THR B 4 LYS B 17 1 14 HELIX 10 AB1 GLU B 22 TYR B 35 1 14 HELIX 11 AB2 PRO B 36 GLY B 46 5 11 HELIX 12 AB3 THR B 50 ASN B 57 1 8 HELIX 13 AB4 ASN B 57 HIS B 77 1 21 HELIX 14 AB5 ASN B 80 LYS B 95 1 16 HELIX 15 AB6 PRO B 100 GLY B 119 1 20 HELIX 16 AB7 LYS B 120 PHE B 122 5 3 HELIX 17 AB8 THR B 123 HIS B 143 1 21 LINK SG CYS B 93 S1 EBJ B 203 1555 1555 2.02 LINK NE2 HIS A 87 FE HEM A 202 1555 1555 2.33 LINK C CMO A 201 FE HEM A 202 1555 1555 1.99 LINK NE2 HIS B 92 FE HEM B 202 1555 1555 2.34 LINK C CMO B 201 FE HEM B 202 1555 1555 2.04 SITE 1 AC1 3 LEU A 29 HIS A 58 HEM A 202 SITE 1 AC2 18 TYR A 42 PHE A 43 HIS A 45 PHE A 46 SITE 2 AC2 18 HIS A 58 LYS A 61 LEU A 83 LEU A 86 SITE 3 AC2 18 HIS A 87 LEU A 91 VAL A 93 ASN A 97 SITE 4 AC2 18 PHE A 98 LEU A 101 LEU A 136 CMO A 201 SITE 5 AC2 18 HOH A 307 HOH A 368 SITE 1 AC3 3 PHE B 42 HIS B 63 HEM B 202 SITE 1 AC4 16 PRO A 4 THR B 38 PHE B 41 PHE B 42 SITE 2 AC4 16 HIS B 63 LYS B 66 ALA B 70 LEU B 88 SITE 3 AC4 16 HIS B 92 LEU B 96 ASN B 102 PHE B 103 SITE 4 AC4 16 LEU B 141 CMO B 201 HOH B 305 HOH B 331 SITE 1 AC5 7 CYS B 93 VAL B 98 PRO B 100 PHE B 103 SITE 2 AC5 7 ALA B 142 HOH B 343 HOH B 349 CRYST1 53.300 53.300 191.966 90.00 90.00 90.00 P 41 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 0.018762 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018762 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005209 0.00000