HEADER OXIDOREDUCTASE 05-AUG-08 3E2N TITLE ENGINEERING ASCORBATE PEROXIDASE ACTIVITY INTO CYTOCHROME C PEROXIDASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C PEROXIDASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 68-361, SEE REMARK 999; COMPND 5 SYNONYM: CCP; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SACCHAROMYCES CEREVISIAE, PISUM SATIVUM; SOURCE 3 ORGANISM_COMMON: GARDEN PEA; SOURCE 4 ORGANISM_TAXID: 4932, 3888; SOURCE 5 GENE: CCP1, CCP, CPO, YKR066C, APX1,APPX1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)STAR; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PT7-7 KEYWDS CYTOCHROME C PEROXIDASE (CCP), ASCORBATE PEROXIDASE (APX), KEYWDS 2 OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR T.L.POULOS,Y.T.MEHARENNA,P.OERTEL REVDAT 6 30-AUG-23 3E2N 1 REMARK REVDAT 5 20-OCT-21 3E2N 1 REMARK SEQADV REVDAT 4 24-JUL-19 3E2N 1 REMARK REVDAT 3 02-AUG-17 3E2N 1 SOURCE REVDAT 2 24-FEB-09 3E2N 1 VERSN REVDAT 1 21-OCT-08 3E2N 0 JRNL AUTH Y.T.MEHARENNA,P.OERTEL,B.BHASKAR,T.L.POULOS JRNL TITL ENGINEERING ASCORBATE PEROXIDASE ACTIVITY INTO CYTOCHROME C JRNL TITL 2 PEROXIDASE. JRNL REF BIOCHEMISTRY V. 47 10324 2008 JRNL REFN ISSN 0006-2960 JRNL PMID 18771292 JRNL DOI 10.1021/BI8007565 REMARK 2 REMARK 2 RESOLUTION. 1.30 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) : 1.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 91.9 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) : 0.181 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.181 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) : 92099 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.163 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)) : 73552 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2267 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 43 REMARK 3 SOLVENT ATOMS : 589 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 2867.5 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 0.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 6 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 18483 REMARK 3 NUMBER OF RESTRAINTS : 21282 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.015 REMARK 3 ANGLE DISTANCES (A) : 0.028 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.026 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.066 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.071 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.025 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) : 0.000 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: NULL REMARK 4 REMARK 4 3E2N COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-AUG-08. REMARK 100 THE DEPOSITION ID IS D_1000048797. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 16-MAY-05 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97900 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 92280 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.250 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.3 REMARK 200 DATA REDUNDANCY : 4.400 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05000 REMARK 200 FOR THE DATA SET : 11.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.25 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.27 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.1 REMARK 200 DATA REDUNDANCY IN SHELL : 3.60 REMARK 200 R MERGE FOR SHELL (I) : 0.55000 REMARK 200 R SYM FOR SHELL (I) : 0.55000 REMARK 200 FOR SHELL : 2.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: SHELXD REMARK 200 STARTING MODEL: PDB ENTRY 1ZBY REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.73 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 22% 2-METHYL-2,4-PENTANEDIOL (MPD), REMARK 280 0.05M TRIS-PHOSPHATE, PH 6.0, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 298K 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 53.39150 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 25.47400 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.24700 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 25.47400 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 53.39150 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.24700 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 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 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 THR A 1 REMARK 465 THR A 2 REMARK 465 PRO A 3 REMARK 465 LEU A 4 REMARK 465 VAL A 5 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 GLU A 11 CD GLU A 11 OE2 -0.067 REMARK 500 GLU A 260 CD GLU A 260 OE1 0.107 REMARK 500 LEU A 287 C LEU A 287 OXT -0.129 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 GLU A 11 OE1 - CD - OE2 ANGL. DEV. = 10.5 DEGREES REMARK 500 ASP A 18 CB - CG - OD2 ANGL. DEV. = -7.7 DEGREES REMARK 500 TYR A 23 CG - CD2 - CE2 ANGL. DEV. = 5.8 DEGREES REMARK 500 TYR A 23 CZ - CE2 - CD2 ANGL. DEV. = -7.0 DEGREES REMARK 500 ARG A 41 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 ARG A 41 NE - CZ - NH1 ANGL. DEV. = 4.3 DEGREES REMARK 500 ARG A 41 NE - CZ - NH2 ANGL. DEV. = -5.3 DEGREES REMARK 500 ARG A 41 NE - CZ - NH2 ANGL. DEV. = -4.5 DEGREES REMARK 500 TRP A 44 CB - CG - CD2 ANGL. DEV. = 8.4 DEGREES REMARK 500 TYR A 60 CB - CG - CD2 ANGL. DEV. = -4.7 DEGREES REMARK 500 TYR A 60 CG - CD2 - CE2 ANGL. DEV. = -5.7 DEGREES REMARK 500 TYR A 60 CD1 - CE1 - CZ ANGL. DEV. = -7.2 DEGREES REMARK 500 TRP A 119 CG - CD1 - NE1 ANGL. DEV. = 6.3 DEGREES REMARK 500 TRP A 119 CD1 - NE1 - CE2 ANGL. DEV. = -5.6 DEGREES REMARK 500 ARG A 120 NE - CZ - NH2 ANGL. DEV. = -4.3 DEGREES REMARK 500 ARG A 123 NE - CZ - NH2 ANGL. DEV. = 6.2 DEGREES REMARK 500 ARG A 136 NE - CZ - NH1 ANGL. DEV. = -4.0 DEGREES REMARK 500 ARG A 136 NE - CZ - NH2 ANGL. DEV. = 8.8 DEGREES REMARK 500 ASP A 141 CB - CG - OD1 ANGL. DEV. = 6.5 DEGREES REMARK 500 TYR A 146 CB - CG - CD1 ANGL. DEV. = 4.8 DEGREES REMARK 500 ARG A 148 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 ARG A 153 NE - CZ - NH1 ANGL. DEV. = 6.5 DEGREES REMARK 500 ARG A 153 NE - CZ - NH2 ANGL. DEV. = -4.7 DEGREES REMARK 500 ASP A 158 CB - CG - OD1 ANGL. DEV. = 6.9 DEGREES REMARK 500 ASP A 158 CB - CG - OD2 ANGL. DEV. = -7.4 DEGREES REMARK 500 ARG A 177 NE - CZ - NH2 ANGL. DEV. = -4.0 DEGREES REMARK 500 TYR A 180 CB - CG - CD1 ANGL. DEV. = -3.9 DEGREES REMARK 500 TYR A 244 CB - CG - CD1 ANGL. DEV. = -4.6 DEGREES REMARK 500 TYR A 244 CZ - CE2 - CD2 ANGL. DEV. = -5.5 DEGREES REMARK 500 ASP A 254 CB - CG - OD1 ANGL. DEV. = 6.6 DEGREES REMARK 500 PHE A 259 CB - CG - CD2 ANGL. DEV. = 4.4 DEGREES REMARK 500 GLU A 264 OE1 - CD - OE2 ANGL. DEV. = -7.9 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 168 NE2 REMARK 620 2 HEM A 296 NA 94.9 REMARK 620 3 HEM A 296 NB 90.6 89.2 REMARK 620 4 HEM A 296 NC 91.2 173.8 91.4 REMARK 620 5 HEM A 296 ND 95.2 89.0 174.1 89.7 REMARK 620 6 HOH A1370 O 177.6 84.4 87.0 89.5 87.1 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 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1DSO RELATED DB: PDB REMARK 900 CYTOCHROME C PEROXIDASE H175G MUTANT, IMIDAZOLE COMPLEX AT PH 6, REMARK 900 ROOM TEMPERATURE REMARK 900 RELATED ID: 2V23 RELATED DB: PDB REMARK 900 STRUCTURE OF CYTOCHROME C PEROXIDASE MUTANT N184R Y36A REMARK 900 RELATED ID: 1DSG RELATED DB: PDB REMARK 900 INTERACTION BETWEEN PROXIMAL AND DISTALS REGIONS OF CYTOCHROME C REMARK 900 PEROXIDASE REMARK 900 RELATED ID: 5CCP RELATED DB: PDB REMARK 900 HISTIDINE 52 IS A CRITICAL RESIDUE FOR RAPID FORMATION OF REMARK 900 CYTOCHROME C PEROXIDASE COMPOUND I REMARK 900 RELATED ID: 1ZBY RELATED DB: PDB REMARK 900 HIGH-RESOLUTION CRYSTAL STRUCTURE OF NATIVE (RESTING) CYTOCHROME C REMARK 900 PEROXIDASE (CCP) REMARK 900 RELATED ID: 3E2O RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF CYTOCHROME C PEROXIDASE, N184R MUTANT REMARK 999 REMARK 999 SEQUENCE REMARK 999 RESIDUES 97-109 (LREDDEYDNYIGY) OF THE WILD-TYPE REMARK 999 CYTOCHROME C PEROXIDASE (CCP) ARE REPLACED WITH REMARK 999 RESIDUES 27-32 (IAEKKC) OF THE ASCORBATE PEROXIDASE (APX). DBREF 3E2N A 1 29 UNP P00431 CCPR_YEAST 68 96 DBREF 3E2N A 30 35 UNP P48534 APX1_PEA 27 32 DBREF 3E2N A 36 287 UNP P00431 CCPR_YEAST 110 361 SEQADV 3E2N ARG A 177 UNP P00431 ASN 251 ENGINEERED MUTATION SEQADV 3E2N PHE A 184 UNP P00431 TRP 258 ENGINEERED MUTATION SEQRES 1 A 287 THR THR PRO LEU VAL HIS VAL ALA SER VAL GLU LYS GLY SEQRES 2 A 287 ARG SER TYR GLU ASP PHE GLN LYS VAL TYR ASN ALA ILE SEQRES 3 A 287 ALA LEU LYS ILE ALA GLU LYS LYS CYS GLY PRO VAL LEU SEQRES 4 A 287 VAL ARG LEU ALA TRP HIS THR SER GLY THR TRP ASP LYS SEQRES 5 A 287 HIS ASP ASN THR GLY GLY SER TYR GLY GLY THR TYR ARG SEQRES 6 A 287 PHE LYS LYS GLU PHE ASN ASP PRO SER ASN ALA GLY LEU SEQRES 7 A 287 GLN ASN GLY PHE LYS PHE LEU GLU PRO ILE HIS LYS GLU SEQRES 8 A 287 PHE PRO TRP ILE SER SER GLY ASP LEU PHE SER LEU GLY SEQRES 9 A 287 GLY VAL THR ALA VAL GLN GLU MET GLN GLY PRO LYS ILE SEQRES 10 A 287 PRO TRP ARG CYS GLY ARG VAL ASP THR PRO GLU ASP THR SEQRES 11 A 287 THR PRO ASP ASN GLY ARG LEU PRO ASP ALA ASP LYS ASP SEQRES 12 A 287 ALA ASP TYR VAL ARG THR PHE PHE GLN ARG LEU ASN MET SEQRES 13 A 287 ASN ASP ARG GLU VAL VAL ALA LEU MET GLY ALA HIS ALA SEQRES 14 A 287 LEU GLY LYS THR HIS LEU LYS ARG SER GLY TYR GLU GLY SEQRES 15 A 287 PRO PHE GLY ALA ALA ASN ASN VAL PHE THR ASN GLU PHE SEQRES 16 A 287 TYR LEU ASN LEU LEU ASN GLU ASP TRP LYS LEU GLU LYS SEQRES 17 A 287 ASN ASP ALA ASN ASN GLU GLN TRP ASP SER LYS SER GLY SEQRES 18 A 287 TYR MET MET LEU PRO THR ASP TYR SER LEU ILE GLN ASP SEQRES 19 A 287 PRO LYS TYR LEU SER ILE VAL LYS GLU TYR ALA ASN ASP SEQRES 20 A 287 GLN ASP LYS PHE PHE LYS ASP PHE SER LYS ALA PHE GLU SEQRES 21 A 287 LYS LEU LEU GLU ASN GLY ILE THR PHE PRO LYS ASP ALA SEQRES 22 A 287 PRO SER PRO PHE ILE PHE LYS THR LEU GLU GLU GLN GLY SEQRES 23 A 287 LEU HET HEM A 296 43 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 HOH *589(H2 O) HELIX 1 1 SER A 15 LYS A 34 1 20 HELIX 2 2 CYS A 35 GLY A 48 1 14 HELIX 3 3 GLY A 62 ARG A 65 5 4 HELIX 4 4 PHE A 66 ASN A 71 1 6 HELIX 5 5 ASP A 72 ALA A 76 5 5 HELIX 6 6 GLY A 77 PHE A 92 1 16 HELIX 7 7 SER A 96 MET A 112 1 17 HELIX 8 8 PRO A 127 THR A 131 5 5 HELIX 9 9 ASP A 143 ARG A 153 1 11 HELIX 10 10 ASN A 157 GLY A 166 1 10 HELIX 11 11 ALA A 167 LEU A 170 5 4 HELIX 12 12 HIS A 174 GLY A 179 1 6 HELIX 13 13 ASN A 193 GLU A 202 1 10 HELIX 14 14 LEU A 225 ASP A 234 1 10 HELIX 15 15 ASP A 234 ASN A 246 1 13 HELIX 16 16 ASP A 247 ASN A 265 1 19 HELIX 17 17 THR A 281 GLY A 286 1 6 SHEET 1 A 2 LYS A 172 THR A 173 0 SHEET 2 A 2 GLY A 182 PRO A 183 -1 O GLY A 182 N THR A 173 SHEET 1 B 3 TRP A 204 LYS A 208 0 SHEET 2 B 3 GLU A 214 SER A 218 -1 O ASP A 217 N LYS A 205 SHEET 3 B 3 MET A 223 MET A 224 -1 O MET A 224 N TRP A 216 LINK NE2 HIS A 168 FE HEM A 296 1555 1555 1.98 LINK FE HEM A 296 O HOH A1370 1555 1555 1.98 SITE 1 AC1 22 PRO A 37 ARG A 41 TRP A 44 PRO A 138 SITE 2 AC1 22 ASP A 139 ALA A 140 LEU A 164 MET A 165 SITE 3 AC1 22 ALA A 167 HIS A 168 GLY A 171 LYS A 172 SITE 4 AC1 22 THR A 173 HIS A 174 ARG A 177 SER A 178 SITE 5 AC1 22 LEU A 225 THR A 227 HOH A1054 HOH A1126 SITE 6 AC1 22 HOH A1215 HOH A1370 CRYST1 106.783 74.494 50.948 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 0.009365 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013424 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019628 0.00000