HEADER OXIDOREDUCTASE 06-MAR-10 3M2D TITLE CRYSTALLOGRAPHIC AND SINGLE CRYSTAL SPECTRAL ANALYSIS OF THE TITLE 2 PEROXIDASE FERRYL INTERMEDIATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C PEROXIDASE, MITOCHONDRIAL; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 71-361; COMPND 5 SYNONYM: CCP; COMPND 6 EC: 1.11.1.5; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SACCHAROMYCES CEREVISIAE; SOURCE 3 ORGANISM_COMMON: YEAST; SOURCE 4 ORGANISM_TAXID: 4932; SOURCE 5 GENE: CCP, CCP1, CPO, YKR066C; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PT7 KEYWDS CYTOCHROME C PEROXIDASE (CCP), OXIDOREDUCTASE, HEME, HYDROGEN KEYWDS 2 PEROXIDE, IRON, METAL-BINDING, MITOCHONDRION, ORGANIC RADICAL, KEYWDS 3 PEROXIDASE EXPDTA X-RAY DIFFRACTION AUTHOR Y.T.MEHARENNA,T.L.POULOS REVDAT 2 13-OCT-21 3M2D 1 REMARK SEQADV LINK REVDAT 1 12-MAY-10 3M2D 0 JRNL AUTH Y.T.MEHARENNA,T.DOUKOV,H.LI,S.M.SOLTIS,T.L.POULOS JRNL TITL CRYSTALLOGRAPHIC AND SINGLE-CRYSTAL SPECTRAL ANALYSIS OF THE JRNL TITL 2 PEROXIDASE FERRYL INTERMEDIATE. JRNL REF BIOCHEMISTRY V. 49 2984 2010 JRNL REFN ISSN 0006-2960 JRNL PMID 20230048 JRNL DOI 10.1021/BI100238R REMARK 2 REMARK 2 RESOLUTION. 1.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 91.1 REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.117 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.094 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 56823 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2356 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 48 REMARK 3 SOLVENT ATOMS : 630 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 2964.0 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 2206.9 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 7 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 36595 REMARK 3 NUMBER OF RESTRAINTS : 33146 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.020 REMARK 3 ANGLE DISTANCES (A) : 0.031 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.029 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.068 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.067 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.053 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : 0.004 REMARK 3 SIMILAR ADP COMPONENTS (A**2) : 0.047 REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : 0.105 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: ANISOTROPIC REFINEMENT REDUCED FREE R REMARK 3 (NO CUTOFF) BY ? REMARK 4 REMARK 4 3M2D COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-APR-10. REMARK 100 THE DEPOSITION ID IS D_1000058020. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-NOV-09 REMARK 200 TEMPERATURE (KELVIN) : 65 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 19 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.954 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 325 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 77144 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.400 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.8 REMARK 200 DATA REDUNDANCY : 3.100 REMARK 200 R MERGE (I) : 0.07800 REMARK 200 R SYM (I) : 0.07800 REMARK 200 FOR THE DATA SET : 12.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.42 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.2 REMARK 200 DATA REDUNDANCY IN SHELL : 3.10 REMARK 200 R MERGE FOR SHELL (I) : 0.53400 REMARK 200 R SYM FOR SHELL (I) : 0.53400 REMARK 200 FOR SHELL : 2.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: AB INITIO REMARK 200 SOFTWARE USED: SHELX REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 59.92 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.66 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 10UL (350-400UM PROTEIN), 22% MPD, REMARK 280 50MM TRIS PHOSHATE BUFFER PH 6.0, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 277.2K 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 53.58000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 25.50150 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.41400 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 25.50150 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 53.58000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.41400 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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: COVALENT BOND LENGTHS REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 LEU A 4 N LEU A 4 CA 0.496 REMARK 500 ASN A 272 C GLY A 273 N 0.143 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 LEU A 4 N - CA - CB ANGL. DEV. = 22.9 DEGREES REMARK 500 TYR A 23 CB - CG - CD2 ANGL. DEV. = 4.1 DEGREES REMARK 500 TYR A 23 CG - CD2 - CE2 ANGL. DEV. = 7.7 DEGREES REMARK 500 ASP A 34 CB - CG - OD1 ANGL. DEV. = 5.7 DEGREES REMARK 500 ARG A 48 NE - CZ - NH2 ANGL. DEV. = -3.4 DEGREES REMARK 500 TRP A 51 CB - CG - CD2 ANGL. DEV. = 8.3 DEGREES REMARK 500 TYR A 71 CB - CG - CD2 ANGL. DEV. = 3.6 DEGREES REMARK 500 PHE A 77 CB - CG - CD2 ANGL. DEV. = 4.2 DEGREES REMARK 500 ARG A 160 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES 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 296 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 175 NE2 REMARK 620 2 HEM A 296 NA 91.1 REMARK 620 3 HEM A 296 NB 88.5 89.8 REMARK 620 4 HEM A 296 NC 87.6 178.7 90.2 REMARK 620 5 HEM A 296 ND 89.1 90.1 177.6 89.8 REMARK 620 6 HOH A1040 O 178.4 88.9 89.9 92.4 92.5 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 296 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 299 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1DSO RELATED DB: PDB REMARK 900 RELATED ID: 2V23 RELATED DB: PDB REMARK 900 RELATED ID: 1DSG RELATED DB: PDB REMARK 900 RELATED ID: 1ZBY RELATED DB: PDB REMARK 900 RELATED ID: 5CCP RELATED DB: PDB REMARK 900 RELATED ID: 3E2N RELATED DB: PDB REMARK 900 RELATED ID: 3E2O RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CYTOCHROME C PEROXIDASE, N184R MUTANT REMARK 900 RELATED ID: 3M23 RELATED DB: PDB REMARK 900 COMPOUND I (1) COMPOSITE STRUCTURE OF CYTOCHROME C PEROXIDASE, REMARK 900 N184R MUTANT REMARK 900 RELATED ID: 3M25 RELATED DB: PDB REMARK 900 COMPOUND I (2) COMPOSITE STRUCTURE OF CYTOCHROME C PEROXIDASE, REMARK 900 N184R MUTANT REMARK 900 RELATED ID: 3M26 RELATED DB: PDB REMARK 900 COMPOUND I (3) COMPOSITE STRUCTURE OF CYTOCHROME C PEROXIDASE, REMARK 900 N184R MUTANT REMARK 900 RELATED ID: 3M27 RELATED DB: PDB REMARK 900 COMPOUND I (4) COMPOSITE STRUCTURE OF CYTOCHROME C PEROXIDASE, REMARK 900 N184R MUTANT REMARK 900 RELATED ID: 3M28 RELATED DB: PDB REMARK 900 COMPOUND I (5) COMPOSITE STRUCTURE OF CYTOCHROME C PEROXIDASE, REMARK 900 N184R MUTANT REMARK 900 RELATED ID: 3M29 RELATED DB: PDB REMARK 900 COMPOUND I (6) COMPOSITE STRUCTURE OF CYTOCHROME C PEROXIDASE, REMARK 900 N184R MUTANT REMARK 900 RELATED ID: 3M2A RELATED DB: PDB REMARK 900 COMPOUND I (7) COMPOSITE STRUCTURE OF CYTOCHROME C PEROXIDASE, REMARK 900 N184R MUTANT REMARK 900 RELATED ID: 3M2B RELATED DB: PDB REMARK 900 COMPOUND I (8) COMPOSITE STRUCTURE OF CYTOCHROME C PEROXIDASE, REMARK 900 N184R MUTANT REMARK 900 RELATED ID: 3M2C RELATED DB: PDB REMARK 900 COMPOUND I (9) COMPOSITE STRUCTURE OF CYTOCHROME C PEROXIDASE, REMARK 900 N184R MUTANT REMARK 900 RELATED ID: 3M2E RELATED DB: PDB REMARK 900 RELATED ID: 3M2F RELATED DB: PDB REMARK 900 RELATED ID: 3M2G RELATED DB: PDB REMARK 900 RELATED ID: 3M2H RELATED DB: PDB REMARK 900 RELATED ID: 3M2I RELATED DB: PDB DBREF 3M2D A 4 294 UNP P00431 CCPR_YEAST 71 361 SEQADV 3M2D ARG A 184 UNP P00431 ASN 251 ENGINEERED MUTATION SEQRES 1 A 291 LEU VAL HIS VAL ALA SER VAL GLU LYS GLY ARG SER TYR SEQRES 2 A 291 GLU ASP PHE GLN LYS VAL TYR ASN ALA ILE ALA LEU LYS SEQRES 3 A 291 LEU ARG GLU ASP ASP GLU TYR ASP ASN TYR ILE GLY TYR SEQRES 4 A 291 GLY PRO VAL LEU VAL ARG LEU ALA TRP HIS THR SER GLY SEQRES 5 A 291 THR TRP ASP LYS HIS ASP ASN THR GLY GLY SER TYR GLY SEQRES 6 A 291 GLY THR TYR ARG PHE LYS LYS GLU PHE ASN ASP PRO SER SEQRES 7 A 291 ASN ALA GLY LEU GLN ASN GLY PHE LYS PHE LEU GLU PRO SEQRES 8 A 291 ILE HIS LYS GLU PHE PRO TRP ILE SER SER GLY ASP LEU SEQRES 9 A 291 PHE SER LEU GLY GLY VAL THR ALA VAL GLN GLU MET GLN SEQRES 10 A 291 GLY PRO LYS ILE PRO TRP ARG CYS GLY ARG VAL ASP THR SEQRES 11 A 291 PRO GLU ASP THR THR PRO ASP ASN GLY ARG LEU PRO ASP SEQRES 12 A 291 ALA ASP LYS ASP ALA ASP TYR VAL ARG THR PHE PHE GLN SEQRES 13 A 291 ARG LEU ASN MET ASN ASP ARG GLU VAL VAL ALA LEU MET SEQRES 14 A 291 GLY ALA HIS ALA LEU GLY LYS THR HIS LEU LYS ARG SER SEQRES 15 A 291 GLY TYR GLU GLY PRO TRP GLY ALA ALA ASN ASN VAL PHE SEQRES 16 A 291 THR ASN GLU PHE TYR LEU ASN LEU LEU ASN GLU ASP TRP SEQRES 17 A 291 LYS LEU GLU LYS ASN ASP ALA ASN ASN GLU GLN TRP ASP SEQRES 18 A 291 SER LYS SER GLY TYR MET MET LEU PRO THR ASP TYR SER SEQRES 19 A 291 LEU ILE GLN ASP PRO LYS TYR LEU SER ILE VAL LYS GLU SEQRES 20 A 291 TYR ALA ASN ASP GLN ASP LYS PHE PHE LYS ASP PHE SER SEQRES 21 A 291 LYS ALA PHE GLU LYS LEU LEU GLU ASN GLY ILE THR PHE SEQRES 22 A 291 PRO LYS ASP ALA PRO SER PRO PHE ILE PHE LYS THR LEU SEQRES 23 A 291 GLU GLU GLN GLY LEU HET HEM A 296 43 HET PO4 A 299 5 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM PO4 PHOSPHATE ION HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 PO4 O4 P 3- FORMUL 4 HOH *630(H2 O) HELIX 1 1 SER A 15 ASP A 33 1 19 HELIX 2 2 GLU A 35 ILE A 40 1 6 HELIX 3 3 TYR A 42 GLY A 55 1 14 HELIX 4 4 GLY A 69 ARG A 72 5 4 HELIX 5 5 PHE A 73 ASN A 78 1 6 HELIX 6 6 ASP A 79 GLY A 84 5 6 HELIX 7 7 LEU A 85 PHE A 99 1 15 HELIX 8 8 SER A 103 MET A 119 1 17 HELIX 9 9 PRO A 134 THR A 138 5 5 HELIX 10 10 ASP A 150 ARG A 160 1 11 HELIX 11 11 ASN A 164 GLY A 173 1 10 HELIX 12 12 ALA A 174 LEU A 177 5 4 HELIX 13 13 HIS A 181 GLY A 186 1 6 HELIX 14 14 ASN A 200 GLU A 209 1 10 HELIX 15 15 LEU A 232 ASP A 241 1 10 HELIX 16 16 ASP A 241 ASN A 253 1 13 HELIX 17 17 ASP A 254 ASN A 272 1 19 HELIX 18 18 THR A 288 GLY A 293 1 6 SHEET 1 A 2 HIS A 6 VAL A 7 0 SHEET 2 A 2 ILE A 274 THR A 275 1 O THR A 275 N HIS A 6 SHEET 1 B 3 LYS A 212 LYS A 215 0 SHEET 2 B 3 GLU A 221 ASP A 224 -1 O GLN A 222 N GLU A 214 SHEET 3 B 3 MET A 230 MET A 231 -1 O MET A 231 N TRP A 223 LINK NE2 HIS A 175 FE HEM A 296 1555 1555 2.07 LINK FE HEM A 296 O HOH A1040 1555 1555 1.82 SITE 1 AC1 24 PRO A 44 ARG A 48 TRP A 51 PRO A 145 SITE 2 AC1 24 ASP A 146 ALA A 147 LEU A 171 MET A 172 SITE 3 AC1 24 ALA A 174 HIS A 175 LEU A 177 GLY A 178 SITE 4 AC1 24 LYS A 179 THR A 180 HIS A 181 ARG A 184 SITE 5 AC1 24 SER A 185 TRP A 191 LEU A 232 THR A 234 SITE 6 AC1 24 HOH A 517 HOH A 678 HOH A 679 HOH A1040 SITE 1 AC2 3 ASN A 87 ARG A 184 HOH A1103 CRYST1 107.160 74.828 51.003 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 0.009332 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013364 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019607 0.00000 MASTER 292 0 2 18 5 0 7 6 0 0 0 23 END