HEADER OXIDOREDUCTASE 19-OCT-19 6T6V TITLE GLU-494-ALA INACTIVE MONOMER OF A QUINOL DEPENDENT NITRIC OXIDE TITLE 2 REDUCTASE (QNOR) FROM ALCALIGENES XYLOSOXIDANS COMPND MOL_ID: 1; COMPND 2 MOLECULE: NITRIC OXIDE REDUCTASE SUBUNIT B; COMPND 3 CHAIN: A; COMPND 4 EC: 1.7.2.5; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ALCALIGENES XYLOSOXYDANS XYLOSOXYDANS; SOURCE 3 ORGANISM_TAXID: 85698; SOURCE 4 GENE: NORB_1, ERS451415_02175; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 8 EXPRESSION_SYSTEM_VARIANT: C41; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET26B(+) KEYWDS MONOMER, PROTON TRANSFER, NITRIC OXIDE, OXIDOREDUCTASE EXPDTA ELECTRON MICROSCOPY AUTHOR C.C.GOPALASINGAM,R.M.JOHNSON,S.V.ANTONYUK,S.P.MUENCH,S.S.HASNAIN REVDAT 3 22-MAY-24 6T6V 1 REMARK REVDAT 2 27-MAY-20 6T6V 1 JRNL REVDAT 1 01-APR-20 6T6V 0 JRNL AUTH M.A.M.JAMALI,C.C.GOPALASINGAM,R.M.JOHNSON,T.TOSHA, JRNL AUTH 2 K.MURAMOTO,S.P.MUENCH,S.V.ANTONYUK,Y.SHIRO,S.S.HASNAIN JRNL TITL THE ACTIVE FORM OF QUINOL-DEPENDENT NITRIC OXIDE REDUCTASE JRNL TITL 2 FROMNEISSERIA MENINGITIDISIS A DIMER. JRNL REF IUCRJ V. 7 404 2020 JRNL REFN ESSN 2052-2525 JRNL PMID 32431824 JRNL DOI 10.1107/S2052252520003656 REMARK 2 REMARK 2 RESOLUTION. 4.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : EPU, CTFFIND, UCSF CHIMERA, PHENIX, REMARK 3 RELION, RELION REMARK 3 RECONSTRUCTION SCHEMA : BACK PROJECTION REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : 6QQ6 REMARK 3 REFINEMENT SPACE : REAL REMARK 3 REFINEMENT PROTOCOL : FLEXIBLE FIT REMARK 3 REFINEMENT TARGET : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE : NULL REMARK 3 REMARK 3 FITTING PROCEDURE : NULL REMARK 3 REMARK 3 EM IMAGE RECONSTRUCTION STATISTICS REMARK 3 NOMINAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 ACTUAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 EFFECTIVE RESOLUTION (ANGSTROMS) : 4.500 REMARK 3 NUMBER OF PARTICLES : 144424 REMARK 3 CTF CORRECTION METHOD : PHASE FLIPPING AND AMPLITUDE REMARK 3 CORRECTION REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: NULL REMARK 4 REMARK 4 6T6V COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 19-OCT-19. REMARK 100 THE DEPOSITION ID IS D_1292104885. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : SINGLE PARTICLE REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : PARTICLE REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : GLU-494-ALA MUTANT OF QUINOL REMARK 245 DEPENDENT NITRIC OXIDE REDUCTASE REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 3.00 REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 7.50 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : 2239 REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : FEI TITAN KRIOS REMARK 245 DETECTOR TYPE : GATAN K2 SUMMIT (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : -1500.00 REMARK 245 MAXIMUM DEFOCUS (NM) : -3000.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : 2.70 REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 5000.00 REMARK 245 ILLUMINATION MODE : FLOOD BEAM REMARK 245 NOMINAL MAGNIFICATION : 48000 REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 300 REMARK 245 IMAGING DETAILS : NULL REMARK 247 REMARK 247 ELECTRON MICROSCOPY REMARK 247 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM ELECTRON REMARK 247 MICROSCOPY DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE REMARK 247 THAT CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES REMARK 247 ON THESE RECORDS ARE MEANINGLESS EXCEPT FOR THE CALCULATION REMARK 247 OF THE STRUCTURE FACTORS. 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: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 2710 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 31310 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -60.0 KCAL/MOL 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 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 MET A 1 REMARK 465 SER A 744 REMARK 465 GLY A 745 REMARK 465 LYS A 746 REMARK 465 PRO A 747 REMARK 465 ALA A 748 REMARK 465 ALA A 749 REMARK 465 ALA A 750 REMARK 465 GLU A 751 REMARK 465 PRO A 752 REMARK 465 VAL A 753 REMARK 465 LEU A 754 REMARK 465 ARG A 755 REMARK 465 ALA A 756 REMARK 465 GLU A 757 REMARK 465 PRO A 758 REMARK 465 ALA A 759 REMARK 465 ARG A 760 REMARK 465 ARG A 761 REMARK 465 LEU A 762 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 A 28 CG CD OE1 OE2 REMARK 470 LEU A 98 CG CD1 CD2 REMARK 470 GLU A 203 CG CD OE1 OE2 REMARK 470 GLU A 205 CG CD OE1 OE2 REMARK 470 LEU A 240 CG CD1 CD2 REMARK 470 GLU A 258 CG CD OE1 OE2 REMARK 470 GLU A 261 CG CD OE1 OE2 REMARK 470 LEU A 318 CG CD1 CD2 REMARK 470 LEU A 376 CG CD1 CD2 REMARK 470 LYS A 445 CG CD CE NZ REMARK 470 HIS A 486 CG ND1 CD2 CE1 NE2 REMARK 470 GLU A 490 CG CD OE1 OE2 REMARK 470 ARG A 513 CG CD NE CZ NH1 NH2 REMARK 470 LEU A 521 CG CD1 CD2 REMARK 470 LEU A 526 CG CD1 CD2 REMARK 470 LYS A 577 CG CD CE NZ REMARK 470 ARG A 651 CG CD NE CZ NH1 NH2 REMARK 470 ARG A 654 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 714 CG CD CE NZ REMARK 470 LEU A 729 CG CD1 CD2 REMARK 470 LEU A 732 CG CD1 CD2 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 GLU A 28 CG GLN A 32 1.94 REMARK 500 O GLU A 28 CB GLN A 32 2.09 REMARK 500 NH2 ARG A 328 O1D HEM A 801 2.16 REMARK 500 OH TYR A 408 O2A HEM A 802 2.16 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 ARG A 31 -9.77 86.34 REMARK 500 ALA A 174 67.27 60.55 REMARK 500 THR A 179 -17.68 69.15 REMARK 500 LEU A 180 97.04 -163.46 REMARK 500 ASN A 223 38.91 -98.09 REMARK 500 GLU A 261 73.14 53.56 REMARK 500 ASP A 396 -33.29 -132.55 REMARK 500 TYR A 408 -5.99 70.53 REMARK 500 ASP A 444 49.18 -94.38 REMARK 500 PHE A 536 2.68 -67.47 REMARK 500 ALA A 542 45.30 -143.04 REMARK 500 LEU A 563 -57.00 -137.94 REMARK 500 THR A 578 6.52 81.99 REMARK 500 TRP A 582 5.60 -65.76 REMARK 500 ASN A 624 50.63 -91.30 REMARK 500 VAL A 637 -65.28 -109.70 REMARK 500 SER A 660 73.42 49.53 REMARK 500 ASP A 711 -1.53 68.23 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 CA A 803 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 76 O REMARK 620 2 GLU A 407 OE1 138.9 REMARK 620 3 GLU A 407 OE2 97.3 46.7 REMARK 620 4 HEM A 802 O1A 151.3 69.1 104.3 REMARK 620 5 HEM A 802 O2A 146.4 45.0 63.7 41.7 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A 801 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 331 NE2 REMARK 620 2 HEM A 801 NA 94.0 REMARK 620 3 HEM A 801 NB 89.2 87.9 REMARK 620 4 HEM A 801 NC 84.2 173.7 86.0 REMARK 620 5 HEM A 801 ND 91.7 93.8 178.0 92.3 REMARK 620 6 HIS A 631 NE2 170.2 76.9 94.2 105.2 85.1 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A 802 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 629 NE2 REMARK 620 2 HEM A 802 NA 77.8 REMARK 620 3 HEM A 802 NB 90.8 87.3 REMARK 620 4 HEM A 802 NC 103.9 173.6 86.5 REMARK 620 5 HEM A 802 ND 88.6 94.4 178.0 91.8 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 801 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue HEM A 802 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CA A 803 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-10387 RELATED DB: EMDB REMARK 900 GLU-494-ALA INACTIVE MONOMER OF A QUINOL DEPENDENT NITRIC OXIDE REMARK 900 REDUCTASE (QNOR) FROM ALCALIGENES XYLOSOXIDANS DBREF1 6T6V A 1 761 UNP A0A0D6H8R3_ALCXX DBREF2 6T6V A A0A0D6H8R3 1 761 SEQADV 6T6V GLY A 201 UNP A0A0D6H8R ALA 201 CONFLICT SEQADV 6T6V ALA A 494 UNP A0A0D6H8R GLU 494 ENGINEERED MUTATION SEQADV 6T6V LEU A 762 UNP A0A0D6H8R EXPRESSION TAG SEQRES 1 A 762 MET GLY PRO TYR ARG ARG LEU TRP PHE THR LEU ILE ALA SEQRES 2 A 762 VAL LEU ALA VAL THR PHE ALA LEU LEU GLY PHE TYR GLY SEQRES 3 A 762 GLY GLU VAL TYR ARG GLN ALA PRO PRO ILE PRO GLU GLU SEQRES 4 A 762 VAL ALA SER ALA ASP GLY THR ARG LEU PHE GLY ARG ASP SEQRES 5 A 762 ASP ILE LEU ASP GLY GLN THR ALA TRP GLN SER ILE GLY SEQRES 6 A 762 GLY MET GLN LEU GLY SER ILE TRP GLY HIS GLY ALA TYR SEQRES 7 A 762 GLN ALA PRO ASP TRP THR ALA ASP TRP LEU HIS ARG GLU SEQRES 8 A 762 LEU MET ALA TRP LEU ASP LEU ALA ALA ARG ASP ALA HIS SEQRES 9 A 762 GLY ARG ASP TYR GLY GLN LEU ASP ALA PRO ALA GLN ALA SEQRES 10 A 762 ALA LEU ARG GLU GLN LEU LYS ALA GLU TYR ARG ALA ASN SEQRES 11 A 762 ARG ALA ASP ALA ALA GLY GLY LYS LEU THR LEU SER PRO SEQRES 12 A 762 ARG ARG ALA GLN ALA VAL ALA GLN THR GLU ALA TYR TYR SEQRES 13 A 762 ASP GLN LEU PHE SER ASP ALA PRO ALA LEU HIS ARG SER SEQRES 14 A 762 ARG GLU ASN TYR ALA MET LYS GLU ASN THR LEU PRO ASP SEQRES 15 A 762 ALA ASN ARG ARG ARG GLN MET THR HIS PHE PHE PHE TRP SEQRES 16 A 762 THR ALA TRP ALA ALA GLY THR GLU ARG GLU GLY THR SER SEQRES 17 A 762 VAL THR TYR THR ASN ASN TRP PRO HIS GLU PRO LEU ILE SEQRES 18 A 762 GLY ASN HIS PRO SER SER GLU ASN VAL MET TRP SER ILE SEQRES 19 A 762 ILE SER VAL VAL VAL LEU LEU ALA GLY ILE GLY LEU LEU SEQRES 20 A 762 ILE TRP ALA TRP ALA PHE LEU ARG GLY LYS GLU GLU ASP SEQRES 21 A 762 GLU PRO PRO ALA PRO ALA ARG ASP PRO LEU THR THR PHE SEQRES 22 A 762 ALA LEU THR PRO SER GLN ARG ALA LEU GLY LYS TYR LEU SEQRES 23 A 762 PHE LEU VAL VAL ALA LEU PHE GLY PHE GLN VAL LEU LEU SEQRES 24 A 762 GLY GLY PHE THR ALA HIS TYR THR VAL GLU GLY GLN LYS SEQRES 25 A 762 PHE TYR GLY ILE ASP LEU SER GLN TRP PHE PRO TYR SER SEQRES 26 A 762 LEU VAL ARG THR TRP HIS ILE GLN SER ALA LEU PHE TRP SEQRES 27 A 762 ILE ALA THR GLY PHE LEU ALA ALA GLY LEU PHE LEU ALA SEQRES 28 A 762 PRO LEU ILE ASN GLY GLY ARG ASP PRO LYS TYR GLN LYS SEQRES 29 A 762 ALA GLY VAL ASP ILE LEU PHE TRP ALA LEU VAL LEU VAL SEQRES 30 A 762 VAL VAL GLY SER PHE ALA GLY ASN TYR LEU ALA ILE ALA SEQRES 31 A 762 GLN ILE MET PRO PRO ASP LEU ASN PHE TRP LEU GLY HIS SEQRES 32 A 762 GLN GLY TYR GLU TYR VAL ASP LEU GLY ARG LEU TRP GLN SEQRES 33 A 762 ILE GLY LYS PHE ALA GLY ILE CYS PHE TRP LEU VAL LEU SEQRES 34 A 762 MET LEU ARG GLY ILE VAL PRO ALA LEU ARG THR PRO GLY SEQRES 35 A 762 GLY ASP LYS ASN LEU LEU ALA LEU LEU THR ALA SER VAL SEQRES 36 A 762 GLY ALA ILE GLY LEU PHE TYR GLY ALA GLY PHE PHE TYR SEQRES 37 A 762 GLY GLU ARG THR HIS LEU THR VAL MET GLU TYR TRP ARG SEQRES 38 A 762 TRP TRP ILE VAL HIS LEU TRP VAL GLU GLY PHE PHE ALA SEQRES 39 A 762 VAL PHE ALA THR THR ALA LEU ALA PHE ILE PHE SER THR SEQRES 40 A 762 LEU GLY LEU VAL SER ARG ARG MET ALA THR THR ALA SER SEQRES 41 A 762 LEU ALA SER ALA SER LEU PHE MET LEU GLY GLY ILE PRO SEQRES 42 A 762 GLY THR PHE HIS HIS LEU TYR PHE ALA GLY THR THR THR SEQRES 43 A 762 PRO VAL MET ALA VAL GLY ALA SER PHE SER ALA LEU GLU SEQRES 44 A 762 VAL VAL PRO LEU ILE VAL LEU GLY HIS GLU ALA TRP GLU SEQRES 45 A 762 ASN TRP ARG LEU LYS THR ARG ALA PRO TRP MET GLU ASN SEQRES 46 A 762 LEU LYS TRP PRO LEU MET CYS PHE VAL ALA VAL ALA PHE SEQRES 47 A 762 TRP ASN MET LEU GLY ALA GLY VAL PHE GLY PHE MET ILE SEQRES 48 A 762 ASN PRO PRO VAL SER LEU TYR TYR ILE GLN GLY LEU ASN SEQRES 49 A 762 THR THR PRO VAL HIS ALA HIS ALA ALA LEU PHE GLY VAL SEQRES 50 A 762 TYR GLY PHE LEU ALA LEU GLY PHE THR LEU LEU VAL LEU SEQRES 51 A 762 ARG TYR ILE ARG PRO GLN TYR ALA LEU SER PRO GLY LEU SEQRES 52 A 762 MET LYS LEU ALA PHE TRP GLY LEU ASN LEU GLY LEU ALA SEQRES 53 A 762 LEU MET ILE PHE THR SER LEU LEU PRO ILE GLY LEU ILE SEQRES 54 A 762 GLN PHE HIS ALA SER VAL SER GLU GLY MET TRP TYR ALA SEQRES 55 A 762 ARG SER GLU ALA PHE MET GLN GLN ASP ILE LEU LYS THR SEQRES 56 A 762 LEU ARG TRP GLY ARG THR PHE GLY ASP VAL VAL PHE LEU SEQRES 57 A 762 LEU GLY ALA LEU ALA MET VAL VAL GLN VAL ILE LEU GLY SEQRES 58 A 762 LEU LEU SER GLY LYS PRO ALA ALA ALA GLU PRO VAL LEU SEQRES 59 A 762 ARG ALA GLU PRO ALA ARG ARG LEU HET HEM A 801 43 HET HEM A 802 43 HET CA A 803 1 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM CA CALCIUM ION HETSYN HEM HEME FORMUL 2 HEM 2(C34 H32 FE N4 O4) FORMUL 4 CA CA 2+ HELIX 1 AA1 ARG A 5 THR A 10 1 6 HELIX 2 AA2 THR A 10 TYR A 30 1 21 HELIX 3 AA3 ARG A 51 ILE A 64 1 14 HELIX 4 AA4 GLY A 65 LEU A 69 5 5 HELIX 5 AA5 ASP A 82 ASP A 102 1 21 HELIX 6 AA6 ASP A 112 TYR A 127 1 16 HELIX 7 AA7 SER A 142 LEU A 159 1 18 HELIX 8 AA8 ALA A 163 ALA A 165 5 3 HELIX 9 AA9 LEU A 166 GLU A 171 1 6 HELIX 10 AB1 ASP A 182 ALA A 199 1 18 HELIX 11 AB2 SER A 226 PHE A 253 1 28 HELIX 12 AB3 THR A 276 ALA A 281 1 6 HELIX 13 AB4 LEU A 282 GLU A 309 1 28 HELIX 14 AB5 PRO A 323 ASN A 355 1 33 HELIX 15 AB6 TYR A 362 ALA A 390 1 29 HELIX 16 AB7 GLY A 412 VAL A 435 1 24 HELIX 17 AB8 PRO A 436 LEU A 438 5 3 HELIX 18 AB9 ASP A 444 PHE A 461 1 18 HELIX 19 AC1 TYR A 462 PHE A 466 5 5 HELIX 20 AC2 HIS A 473 VAL A 485 1 13 HELIX 21 AC3 PHE A 493 LEU A 508 1 16 HELIX 22 AC4 ARG A 514 LEU A 529 1 16 HELIX 23 AC5 GLY A 534 HIS A 538 5 5 HELIX 24 AC6 THR A 545 PHE A 555 1 11 HELIX 25 AC7 SER A 556 VAL A 560 5 5 HELIX 26 AC8 ASN A 573 LYS A 577 5 5 HELIX 27 AC9 ALA A 580 ASN A 585 5 6 HELIX 28 AD1 LEU A 586 MET A 601 1 16 HELIX 29 AD2 VAL A 606 ILE A 611 1 6 HELIX 30 AD3 PRO A 613 TYR A 619 1 7 HELIX 31 AD4 THR A 625 VAL A 637 1 13 HELIX 32 AD5 VAL A 637 ARG A 651 1 15 HELIX 33 AD6 LEU A 663 GLY A 670 1 8 HELIX 34 AD7 GLY A 670 THR A 681 1 12 HELIX 35 AD8 SER A 682 GLU A 697 1 16 HELIX 36 AD9 GLY A 698 ARG A 703 1 6 HELIX 37 AE1 SER A 704 GLN A 709 1 6 HELIX 38 AE2 ILE A 712 GLY A 719 1 8 HELIX 39 AE3 ARG A 720 LEU A 742 1 23 SHEET 1 AA1 2 GLU A 39 ALA A 41 0 SHEET 2 AA1 2 ARG A 47 GLY A 50 -1 O PHE A 49 N VAL A 40 SHEET 1 AA2 2 SER A 71 ILE A 72 0 SHEET 2 AA2 2 HIS A 75 GLY A 76 -1 O HIS A 75 N ILE A 72 LINK O GLY A 76 CA CA A 803 1555 1555 2.39 LINK NE2 HIS A 331 FE HEM A 801 1555 1555 2.13 LINK OE1 GLU A 407 CA CA A 803 1555 1555 2.05 LINK OE2 GLU A 407 CA CA A 803 1555 1555 3.01 LINK NE2 HIS A 629 FE HEM A 802 1555 1555 1.99 LINK NE2 HIS A 631 FE HEM A 801 1555 1555 2.02 LINK O1A HEM A 802 CA CA A 803 1555 1555 2.98 LINK O2A HEM A 802 CA CA A 803 1555 1555 3.10 SITE 1 AC1 19 GLY A 76 TYR A 78 GLN A 296 GLY A 300 SITE 2 AC1 19 GLY A 301 THR A 303 TYR A 324 ARG A 328 SITE 3 AC1 19 HIS A 331 ILE A 332 GLU A 407 TYR A 408 SITE 4 AC1 19 ASN A 624 HIS A 631 PHE A 635 ARG A 720 SITE 5 AC1 19 PHE A 727 HEM A 802 CA A 803 SITE 1 AC2 15 HIS A 75 GLU A 407 TYR A 408 TRP A 482 SITE 2 AC2 15 VAL A 489 GLU A 559 VAL A 560 GLY A 608 SITE 3 AC2 15 ASN A 612 GLN A 621 THR A 626 HIS A 629 SITE 4 AC2 15 ALA A 630 HEM A 801 CA A 803 SITE 1 AC3 5 GLY A 76 TYR A 78 GLU A 407 HEM A 801 SITE 2 AC3 5 HEM A 802 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000