HEADER OXIDOREDUCTASE 21-AUG-23 8TWU TITLE CRYSTAL STRUCTURE OF CYTOCHROME P450 ASPB BOUND TO N1-METHYLATED TITLE 2 CYCLO-L-TRP-L-PRO COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME P450 ASPB; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES; SOURCE 3 ORGANISM_TAXID: 1883; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS DIMERASE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR H.E.GERING,X.LI,H.TANG,P.D.SWARTZ,W.-C.CHANG,T.M.MAKRIS REVDAT 1 20-SEP-23 8TWU 0 JRNL AUTH H.E.GERING,X.LI,H.TANG,P.D.SWARTZ,W.C.CHANG,T.M.MAKRIS JRNL TITL A FERRIC-SUPEROXIDE INTERMEDIATE INITIATES P450-CATALYZED JRNL TITL 2 CYCLIC DIPEPTIDE DIMERIZATION. JRNL REF J.AM.CHEM.SOC. V. 145 19256 2023 JRNL REFN ESSN 1520-5126 JRNL PMID 37611404 JRNL DOI 10.1021/JACS.3C04542 REMARK 2 REMARK 2 RESOLUTION. 1.84 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.19.2_4158 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 : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.84 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 39.73 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 3 NUMBER OF REFLECTIONS : 38156 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.166 REMARK 3 R VALUE (WORKING SET) : 0.164 REMARK 3 FREE R VALUE : 0.209 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.240 REMARK 3 FREE R VALUE TEST SET COUNT : 1998 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 39.7300 - 4.4500 1.00 2790 154 0.1595 0.1819 REMARK 3 2 4.4400 - 3.5300 1.00 2643 146 0.1331 0.1728 REMARK 3 3 3.5300 - 3.0800 1.00 2620 145 0.1559 0.1859 REMARK 3 4 3.0800 - 2.8000 1.00 2618 144 0.1631 0.2471 REMARK 3 5 2.8000 - 2.6000 1.00 2584 143 0.1660 0.2156 REMARK 3 6 2.6000 - 2.4500 1.00 2578 142 0.1702 0.2065 REMARK 3 7 2.4500 - 2.3200 1.00 2555 141 0.1554 0.2130 REMARK 3 8 2.3200 - 2.2200 1.00 2589 143 0.1821 0.2577 REMARK 3 9 2.2200 - 2.1400 1.00 2571 142 0.1580 0.2132 REMARK 3 10 2.1400 - 2.0600 1.00 2549 141 0.1782 0.2351 REMARK 3 11 2.0600 - 2.0000 1.00 2534 139 0.1844 0.2527 REMARK 3 12 2.0000 - 1.9400 1.00 2544 142 0.1904 0.2539 REMARK 3 13 1.9400 - 1.8900 1.00 2542 140 0.2380 0.3048 REMARK 3 14 1.8900 - 1.8400 0.96 2441 136 0.2287 0.2908 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL 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) : 0.190 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 20.379 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 22.35 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.22 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 : 0.008 3416 REMARK 3 ANGLE : 1.030 4697 REMARK 3 CHIRALITY : 0.056 505 REMARK 3 PLANARITY : 0.010 626 REMARK 3 DIHEDRAL : 13.033 502 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 8TWU COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-AUG-23. REMARK 100 THE DEPOSITION ID IS D_1000274203. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-NOV-22 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 22-BM REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : RAYONIX MX300-HS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 38294 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.840 REMARK 200 RESOLUTION RANGE LOW (A) : 39.730 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 7.300 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 24.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.84 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.91 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 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: PHENIX REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.56 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.44 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 15% PEG 3350 50 MM TRIS PH 7.5, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 38.85500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 23.11150 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 60.49950 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 23.11150 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 38.85500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 60.49950 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: 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 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 THR A 2 REMARK 465 THR A 3 REMARK 465 THR A 4 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 209 CG CD OE1 OE2 REMARK 470 GLU A 300 CD OE1 OE2 REMARK 470 ARG A 305 CG CD NE CZ NH1 NH2 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 723 O HOH A 777 1.69 REMARK 500 O HOH A 659 O HOH A 764 1.78 REMARK 500 O HOH A 676 O HOH A 727 1.86 REMARK 500 O HOH A 808 O HOH A 901 1.92 REMARK 500 NZ LYS A 292 O HOH A 601 1.95 REMARK 500 O GLU A 133 O HOH A 602 1.98 REMARK 500 OG SER A 37 O HOH A 603 2.01 REMARK 500 SG CYS A 178 O HOH A 920 2.01 REMARK 500 O HOH A 889 O HOH A 892 2.06 REMARK 500 O HOH A 908 O HOH A 923 2.08 REMARK 500 O HOH A 901 O HOH A 912 2.09 REMARK 500 O ASP A 298 O HOH A 604 2.12 REMARK 500 OE2 GLU A 76 O HOH A 605 2.13 REMARK 500 O HOH A 815 O HOH A 902 2.13 REMARK 500 O HOH A 620 O HOH A 764 2.15 REMARK 500 NE2 HIS A 269 O HOH A 606 2.15 REMARK 500 OE1 GLU A 55 O HOH A 607 2.15 REMARK 500 O HOH A 867 O HOH A 894 2.16 REMARK 500 OE2 GLU A 183 O HOH A 608 2.16 REMARK 500 O HOH A 933 O HOH A 941 2.18 REMARK 500 NH1 ARG A 201 O HOH A 609 2.18 REMARK 500 NH2 ARG A 94 O HOH A 610 2.18 REMARK 500 O HOH A 942 O HOH A 945 2.19 REMARK 500 OE1 GLN A 24 O HOH A 611 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 768 O HOH A 834 1554 2.15 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 PHE A 142 -56.54 -128.48 REMARK 500 LEU A 155 -58.86 -121.33 REMARK 500 HIS A 222 79.31 59.86 REMARK 500 ASP A 302 47.47 39.56 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 ZN A 504 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 267 NE2 REMARK 620 2 HIS A 405 NE2 93.2 REMARK 620 3 HIS A 407 NE2 78.9 85.9 REMARK 620 4 HOH A 668 O 95.8 88.3 171.9 REMARK 620 5 HOH A 879 O 101.9 156.6 79.6 107.7 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A 501 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 351 SG REMARK 620 2 HEM A 501 NA 101.8 REMARK 620 3 HEM A 501 NB 93.4 89.9 REMARK 620 4 HEM A 501 NC 90.9 167.2 87.4 REMARK 620 5 HEM A 501 ND 100.7 89.1 165.8 90.5 REMARK 620 6 HOH A 813 O 177.9 80.3 87.0 87.1 78.9 REMARK 620 N 1 2 3 4 5 DBREF 8TWU A 1 407 PDB 8TWU 8TWU 1 407 SEQRES 1 A 407 MET THR THR THR ALA THR LEU THR TYR PRO PHE HIS ASP SEQRES 2 A 407 TRP SER GLN GLU LEU SER PRO ARG TYR ALA GLN LEU ARG SEQRES 3 A 407 ALA SER ASP ALA PRO VAL CYS PRO VAL VAL SER GLU GLY SEQRES 4 A 407 THR GLY ASP HIS LEU TRP LEU ALA THR ARG TYR ALA ALA SEQRES 5 A 407 ALA VAL GLU LEU LEU GLU ASP PRO ARG LEU SER SER GLU SEQRES 6 A 407 ALA ALA ILE ALA SER GLY ALA PRO ARG GLN GLU PRO VAL SEQRES 7 A 407 GLU LEU ARG ALA PRO GLY THR ARG ALA ASP GLY VAL ALA SEQRES 8 A 407 MET LEU ARG GLU ALA GLY LEU ARG SER VAL LEU ALA ASP SEQRES 9 A 407 GLY LEU GLY PRO ARG ALA VAL ARG ARG HIS GLN GLY TRP SEQRES 10 A 407 ILE ASN ASP LEU ALA GLU THR LEU MET SER ALA LEU ALA SEQRES 11 A 407 SER ARG GLU GLY THR PHE ASP LEU ALA ALA ASP PHE VAL SEQRES 12 A 407 GLU PRO LEU SER SER ALA LEU VAL SER ARG THR LEU LEU SEQRES 13 A 407 GLY GLU LEU SER ALA ASP GLU ARG ASP LEU LEU ALA HIS SEQRES 14 A 407 CYS ALA ASP THR GLY LEU ARG PHE CYS GLY VAL THR HIS SEQRES 15 A 407 GLU GLU GLN VAL HIS ALA PHE THR GLN MET HIS GLU PHE SEQRES 16 A 407 PHE LEU GLU HIS ALA ARG ARG LEU ALA GLY THR PRO GLY SEQRES 17 A 407 GLU HIS LEU LEU LYS LEU ILE ALA GLU ALA PRO VAL ASP SEQRES 18 A 407 HIS GLY PRO LEU SER ASP GLU ALA LEU ALA GLU ALA GLY SEQRES 19 A 407 SER LEU LEU VAL VAL ALA GLY PHE PRO THR SER SER GLY SEQRES 20 A 407 PHE LEU CYS GLY ALA LEU LEU THR LEU LEU ARG HIS PRO SEQRES 21 A 407 ASP ALA VAL GLN GLU LEU HIS ALA HIS PRO GLU ARG VAL SEQRES 22 A 407 PRO SER ALA VAL GLU GLU LEU LEU ARG TYR THR PRO LEU SEQRES 23 A 407 SER THR GLY SER VAL LYS ARG MET ALA THR GLU ASP LEU SEQRES 24 A 407 GLU ILE ASP GLY VAL ARG ILE LYS VAL GLY GLU VAL VAL SEQRES 25 A 407 MET VAL SER LEU GLU ALA VAL ASN HIS ASP PRO ASP ALA SEQRES 26 A 407 PHE GLU ASP PRO ASP VAL PHE ARG PRO GLY ARG GLU GLY SEQRES 27 A 407 PRO MET HIS PHE GLY PHE GLY ARG GLY ARG HIS PHE CYS SEQRES 28 A 407 PRO GLY ASN ARG LEU ALA ARG CYS VAL ILE GLU ALA THR SEQRES 29 A 407 VAL ARG ALA VAL ALA ARG ARG PRO GLY LEU ARG LEU ALA SEQRES 30 A 407 VAL ALA PRO GLU GLU ILE SER TRP HIS GLU GLY LEU PHE SEQRES 31 A 407 PHE ARG ARG PRO ARG ALA ILE PRO ALA THR TRP HIS HIS SEQRES 32 A 407 HIS HIS HIS HIS HET HEM A 501 43 HET RQB A 502 41 HET RQB A 503 41 HET ZN A 504 1 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM RQB (3S,5S,8AS)-3-[(1-METHYL-1H-INDOL-3-YL) HETNAM 2 RQB METHYL]HEXAHYDROPYRROLO[1,2-A]PYRAZINE-1,4-DIONE HETNAM ZN ZINC ION HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 RQB 2(C17 H19 N3 O2) FORMUL 5 ZN ZN 2+ FORMUL 6 HOH *345(H2 O) HELIX 1 AA1 PRO A 20 SER A 28 1 9 HELIX 2 AA2 ARG A 49 GLU A 58 1 10 HELIX 3 AA3 SER A 64 ALA A 69 1 6 HELIX 4 AA4 ASP A 88 ALA A 96 1 9 HELIX 5 AA5 LEU A 98 GLY A 107 1 10 HELIX 6 AA6 GLY A 107 ALA A 130 1 24 HELIX 7 AA7 LEU A 138 PHE A 142 1 5 HELIX 8 AA8 PHE A 142 LEU A 155 1 14 HELIX 9 AA9 SER A 160 LEU A 175 1 16 HELIX 10 AB1 THR A 181 THR A 206 1 26 HELIX 11 AB2 HIS A 210 ALA A 218 1 9 HELIX 12 AB3 SER A 226 HIS A 259 1 34 HELIX 13 AB4 HIS A 259 HIS A 269 1 11 HELIX 14 AB5 ARG A 272 THR A 284 1 13 HELIX 15 AB6 SER A 315 HIS A 321 1 7 HELIX 16 AB7 ARG A 346 PHE A 350 5 5 HELIX 17 AB8 GLY A 353 ARG A 370 1 18 HELIX 18 AB9 ALA A 379 ILE A 383 5 5 SHEET 1 AA1 6 LEU A 7 TYR A 9 0 SHEET 2 AA1 6 CYS A 33 SER A 37 1 O VAL A 36 N TYR A 9 SHEET 3 AA1 6 HIS A 43 ALA A 47 -1 O LEU A 44 N VAL A 35 SHEET 4 AA1 6 VAL A 311 VAL A 314 1 O MET A 313 N TRP A 45 SHEET 5 AA1 6 VAL A 291 ALA A 295 -1 N ARG A 293 O VAL A 312 SHEET 6 AA1 6 LEU A 62 SER A 63 -1 N SER A 63 O MET A 294 SHEET 1 AA2 3 PHE A 136 ASP A 137 0 SHEET 2 AA2 3 PRO A 398 TRP A 401 -1 O ALA A 399 N PHE A 136 SHEET 3 AA2 3 LEU A 374 LEU A 376 -1 N ARG A 375 O THR A 400 SHEET 1 AA3 2 LEU A 299 ILE A 301 0 SHEET 2 AA3 2 VAL A 304 ILE A 306 -1 O ILE A 306 N LEU A 299 LINK NE2 HIS A 267 ZN ZN A 504 1555 1555 2.25 LINK SG CYS A 351 FE HEM A 501 1555 1555 2.31 LINK NE2 HIS A 405 ZN ZN A 504 1555 1555 2.26 LINK NE2 HIS A 407 ZN ZN A 504 1555 1555 2.32 LINK FE HEM A 501 O HOH A 813 1555 1555 2.48 LINK ZN ZN A 504 O HOH A 668 1555 2554 2.27 LINK ZN ZN A 504 O HOH A 879 1555 2554 2.57 CISPEP 1 TYR A 9 PRO A 10 0 4.10 CISPEP 2 GLY A 338 PRO A 339 0 0.70 CRYST1 77.710 120.999 46.223 90.00 90.00 90.00 P 21 21 21 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 0.012868 0.000000 0.000000 0.00000 SCALE2 0.000000 0.008265 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021634 0.00000