HEADER OXIDOREDUCTASE 03-AUG-22 8DYB TITLE THE CRYSTAL STRUCTURE OF THE T252A MUTANT OF CYP199A4 BOUND TO 4- TITLE 2 METHYLTHIOBENZOIC ACID COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME P450; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CYP199A4; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RHODOPSEUDOMONAS PALUSTRIS HAA2; SOURCE 3 ORGANISM_TAXID: 316058; SOURCE 4 STRAIN: HAA2; SOURCE 5 GENE: RPB_3613; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS SULFUR OXIDATION, P450 MUTANT, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR T.COLEMAN,S.G.BELL REVDAT 2 25-OCT-23 8DYB 1 REMARK REVDAT 1 04-JAN-23 8DYB 0 JRNL AUTH M.N.PODGORSKI,T.COLEMAN,L.R.CHURCHMAN,J.B.BRUNING, JRNL AUTH 2 J.J.DE VOSS,S.G.BELL JRNL TITL INVESTIGATING THE ACTIVE OXIDANTS INVOLVED IN CYTOCHROME JRNL TITL 2 P450 CATALYZED SULFOXIDATION REACTIONS. JRNL REF CHEMISTRY V. 28 02428 2022 JRNL REFN ISSN 0947-6539 JRNL PMID 36169207 JRNL DOI 10.1002/CHEM.202202428 REMARK 2 REMARK 2 RESOLUTION. 1.88 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.11.1 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 : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.88 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 31.09 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 3 NUMBER OF REFLECTIONS : 24938 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.222 REMARK 3 R VALUE (WORKING SET) : 0.220 REMARK 3 FREE R VALUE : 0.262 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.060 REMARK 3 FREE R VALUE TEST SET COUNT : 1262 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 31.0850 - 3.9075 1.00 2704 161 0.1793 0.2183 REMARK 3 2 3.9075 - 3.1024 1.00 2686 145 0.1902 0.2415 REMARK 3 3 3.1024 - 2.7105 1.00 2654 154 0.2200 0.2754 REMARK 3 4 2.7105 - 2.4628 1.00 2640 124 0.2378 0.2811 REMARK 3 5 2.4628 - 2.2863 1.00 2647 143 0.2505 0.2915 REMARK 3 6 2.2863 - 2.1516 1.00 2647 122 0.2485 0.2929 REMARK 3 7 2.1516 - 2.0438 1.00 2624 139 0.2718 0.3127 REMARK 3 8 2.0438 - 1.9549 0.99 2612 141 0.2953 0.3135 REMARK 3 9 1.9549 - 1.8800 0.94 2462 133 0.3090 0.3577 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) : 0.260 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 29.580 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 34.46 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 : 0.004 3172 REMARK 3 ANGLE : 0.712 4336 REMARK 3 CHIRALITY : 0.042 470 REMARK 3 PLANARITY : 0.005 577 REMARK 3 DIHEDRAL : 16.863 1896 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 8DYB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-AUG-22. REMARK 100 THE DEPOSITION ID IS D_1000267551. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-APR-17 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.00-5.75 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : AUSTRALIAN SYNCHROTRON REMARK 200 BEAMLINE : MX1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.95370 REMARK 200 MONOCHROMATOR : DOUBLE-CRYSTAL SI(111) WATER REMARK 200 -COOLED REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : AIMLESS 0.5.29 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 25053 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.880 REMARK 200 RESOLUTION RANGE LOW (A) : 42.730 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 200 DATA REDUNDANCY : 7.500 REMARK 200 R MERGE (I) : 0.10700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 11.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.88 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.92 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.7 REMARK 200 DATA REDUNDANCY IN SHELL : 6.90 REMARK 200 R MERGE FOR SHELL (I) : 0.93100 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: PHASER 2.7.17 REMARK 200 STARTING MODEL: 4DO1 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 32.20 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.81 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: THE CRYSTALLISATION BUFFER WAS 100 MM REMARK 280 BIS-TRIS BUFFER (ADJUSTED TO PH 5.0-5.75 WITH ACETIC ACID), 0.2 REMARK 280 M MAGNESIUM ACETATE AND 20-32% PEG 3350, PH 7.4, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 289.15K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 25.46750 REMARK 290 SMTRY3 2 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 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 OE1 GLU A 317 O HOH A 601 1.86 REMARK 500 OH TYR A 35 O HOH A 602 1.91 REMARK 500 N LEU A 280 O HOH A 603 1.94 REMARK 500 O ASP A 277 O HOH A 603 1.97 REMARK 500 OE2 GLU A 369 O HOH A 604 1.99 REMARK 500 O HOH A 743 O HOH A 751 2.00 REMARK 500 N GLY A 249 O HOH A 605 2.01 REMARK 500 O PRO A 387 O HOH A 606 2.06 REMARK 500 O LEU A 140 O HOH A 607 2.06 REMARK 500 O HOH A 735 O HOH A 764 2.07 REMARK 500 O HOH A 684 O HOH A 691 2.08 REMARK 500 NZ LYS A 122 O HOH A 608 2.09 REMARK 500 O HOH A 678 O HOH A 752 2.13 REMARK 500 OG SER A 346 O HOH A 609 2.17 REMARK 500 ND1 HIS A 225 O HOH A 610 2.19 REMARK 500 OG1 THR A 72 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 OG1 THR A 106 OE2 GLU A 169 1655 1.72 REMARK 500 O HOH A 619 O HOH A 621 2545 2.00 REMARK 500 O HOH A 622 O HOH A 734 2544 2.13 REMARK 500 OE2 GLU A 237 O HOH A 608 2555 2.17 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 ASP A 33 88.62 -155.55 REMARK 500 GLU A 99 42.61 -106.39 REMARK 500 THR A 106 -82.45 -41.50 REMARK 500 LEU A 116 47.11 -94.03 REMARK 500 GLN A 141 35.38 -77.11 REMARK 500 ARG A 142 -61.18 -144.37 REMARK 500 LEU A 151 -58.04 -132.01 REMARK 500 LEU A 250 -67.78 -122.55 REMARK 500 SER A 293 75.87 51.46 REMARK 500 CYS A 358 108.10 -31.73 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 501 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 358 SG REMARK 620 2 HEM A 501 NA 98.5 REMARK 620 3 HEM A 501 NB 86.8 91.8 REMARK 620 4 HEM A 501 NC 85.8 175.6 88.4 REMARK 620 5 HEM A 501 ND 95.0 87.1 178.0 92.5 REMARK 620 6 HOH A 706 O 163.6 89.0 78.4 86.8 100.0 REMARK 620 N 1 2 3 4 5 DBREF 8DYB A 17 409 UNP Q2IU02 Q2IU02_RHOP2 18 410 SEQADV 8DYB ALA A 252 UNP Q2IU02 THR 253 ENGINEERED MUTATION SEQRES 1 A 393 THR ILE PRO HIS LEU ALA ILE ASP PRO PHE SER LEU ASP SEQRES 2 A 393 PHE PHE ASP ASP PRO TYR PRO ASP GLN GLN THR LEU ARG SEQRES 3 A 393 ASP ALA GLY PRO VAL VAL TYR LEU ASP LYS TRP ASN VAL SEQRES 4 A 393 TYR GLY VAL ALA ARG TYR ALA GLU VAL HIS ALA VAL LEU SEQRES 5 A 393 ASN ASP PRO THR THR PHE CYS SER SER ARG GLY VAL GLY SEQRES 6 A 393 LEU SER ASP PHE LYS LYS GLU LYS PRO TRP ARG PRO PRO SEQRES 7 A 393 SER LEU ILE LEU GLU ALA ASP PRO PRO ALA HIS THR ARG SEQRES 8 A 393 PRO ARG ALA VAL LEU SER LYS VAL LEU SER PRO ALA THR SEQRES 9 A 393 MET LYS THR ILE ARG ASP GLY PHE ALA ALA ALA ALA ASP SEQRES 10 A 393 ALA LYS VAL ASP GLU LEU LEU GLN ARG GLY CYS ILE ASP SEQRES 11 A 393 ALA ILE ALA ASP LEU ALA GLU ALA TYR PRO LEU SER VAL SEQRES 12 A 393 PHE PRO ASP ALA MET GLY LEU LYS GLN GLU GLY ARG GLU SEQRES 13 A 393 HIS LEU LEU PRO TYR ALA GLY LEU VAL PHE ASN ALA PHE SEQRES 14 A 393 GLY PRO PRO ASN GLU LEU ARG GLN THR ALA ILE GLU ARG SEQRES 15 A 393 SER ALA PRO HIS GLN ALA TYR VAL ASN GLU GLN CYS GLN SEQRES 16 A 393 ARG PRO ASN LEU ALA PRO GLY GLY PHE GLY ALA CYS ILE SEQRES 17 A 393 HIS ALA PHE THR ASP THR GLY GLU ILE THR PRO ASP GLU SEQRES 18 A 393 ALA PRO LEU LEU VAL ARG SER LEU LEU SER ALA GLY LEU SEQRES 19 A 393 ASP ALA THR VAL ASN GLY ILE GLY ALA ALA VAL TYR CYS SEQRES 20 A 393 LEU ALA ARG PHE PRO GLY GLU LEU GLN ARG LEU ARG SER SEQRES 21 A 393 ASP PRO THR LEU ALA ARG ASN ALA PHE GLU GLU ALA VAL SEQRES 22 A 393 ARG PHE GLU SER PRO VAL GLN THR PHE PHE ARG THR THR SEQRES 23 A 393 THR ARG GLU VAL GLU LEU GLY GLY ALA VAL ILE GLY GLU SEQRES 24 A 393 GLY GLU LYS VAL LEU MET PHE LEU GLY SER ALA ASN ARG SEQRES 25 A 393 ASP PRO ARG ARG TRP SER ASP PRO ASP LEU TYR ASP ILE SEQRES 26 A 393 THR ARG LYS THR SER GLY HIS VAL GLY PHE GLY SER GLY SEQRES 27 A 393 VAL HIS MET CYS VAL GLY GLN LEU VAL ALA ARG LEU GLU SEQRES 28 A 393 GLY GLU VAL MET LEU SER ALA LEU ALA ARG LYS VAL ALA SEQRES 29 A 393 ALA ILE ASP ILE ASP GLY PRO VAL LYS ARG ARG PHE ASN SEQRES 30 A 393 ASN THR LEU ARG GLY LEU GLU SER LEU PRO VAL LYS LEU SEQRES 31 A 393 THR PRO ALA HET HEM A 501 43 HET 4MI A 502 11 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM 4MI 4-METHYLSULFANYLBENZOIC ACID HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 4MI C8 H8 O2 S FORMUL 4 HOH *164(H2 O) HELIX 1 AA1 SER A 27 ASP A 33 1 7 HELIX 2 AA2 PRO A 34 GLY A 45 1 12 HELIX 3 AA3 ARG A 60 ASN A 69 1 10 HELIX 4 AA4 HIS A 105 LEU A 116 1 12 HELIX 5 AA5 SER A 117 GLN A 141 1 25 HELIX 6 AA6 GLU A 153 GLY A 165 1 13 HELIX 7 AA7 GLY A 170 GLU A 172 5 3 HELIX 8 AA8 HIS A 173 PHE A 185 1 13 HELIX 9 AA9 ASN A 189 GLU A 197 1 9 HELIX 10 AB1 SER A 199 CYS A 210 1 12 HELIX 11 AB2 GLN A 211 LEU A 215 5 5 HELIX 12 AB3 GLY A 219 PHE A 227 1 9 HELIX 13 AB4 THR A 228 THR A 230 5 3 HELIX 14 AB5 GLU A 237 GLY A 249 1 13 HELIX 15 AB6 LEU A 250 PHE A 267 1 18 HELIX 16 AB7 PHE A 267 ASP A 277 1 11 HELIX 17 AB8 LEU A 280 SER A 293 1 14 HELIX 18 AB9 LEU A 323 ASN A 327 1 5 HELIX 19 AC1 GLY A 360 LYS A 378 1 19 SHEET 1 AA1 6 HIS A 20 LEU A 21 0 SHEET 2 AA1 6 VAL A 48 LEU A 50 1 O TYR A 49 N LEU A 21 SHEET 3 AA1 6 VAL A 55 VAL A 58 -1 O VAL A 55 N LEU A 50 SHEET 4 AA1 6 LYS A 318 PHE A 322 1 O LEU A 320 N TYR A 56 SHEET 5 AA1 6 THR A 297 THR A 302 -1 N PHE A 298 O MET A 321 SHEET 6 AA1 6 PHE A 74 CYS A 75 -1 N CYS A 75 O THR A 301 SHEET 1 AA2 3 CYS A 144 ASP A 146 0 SHEET 2 AA2 3 PRO A 403 PRO A 408 -1 O VAL A 404 N ILE A 145 SHEET 3 AA2 3 VAL A 379 ILE A 384 -1 N ALA A 380 O THR A 407 SHEET 1 AA3 2 VAL A 306 LEU A 308 0 SHEET 2 AA3 2 ALA A 311 ILE A 313 -1 O ILE A 313 N VAL A 306 SHEET 1 AA4 2 LYS A 389 ARG A 391 0 SHEET 2 AA4 2 GLY A 398 SER A 401 -1 O SER A 401 N LYS A 389 LINK SG CYS A 358 FE HEM A 501 1555 1555 2.64 LINK FE HEM A 501 O HOH A 706 1555 1555 2.46 CISPEP 1 PRO A 102 PRO A 103 0 7.33 CRYST1 38.914 50.935 78.707 90.00 94.36 90.00 P 1 21 1 2 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 0.025698 0.000000 0.001957 0.00000 SCALE2 0.000000 0.019633 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012742 0.00000