HEADER OXIDOREDUCTASE 10-FEB-04 1SBM TITLE CRYSTAL STRUCTURE OF REDUCED MESOPONE CYTOCHROME C PEROXIDASE (R- TITLE 2 ISOMER) COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C PEROXIDASE, MITOCHONDRIAL; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CCP; COMPND 5 EC: 1.11.1.5; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SACCHAROMYCES CEREVISIAE; SOURCE 3 ORGANISM_COMMON: BAKER'S YEAST; SOURCE 4 ORGANISM_TAXID: 4932; SOURCE 5 GENE: CCP1, CCP, CPO, YKR066C; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3) STAR; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: T7; SOURCE 10 EXPRESSION_SYSTEM_VECTOR: POULOS VECTOR KEYWDS BIFUNCTIONAL CATALYST, PROXIMAL LOOP, TRP191 RADICAL, 4- KEYWDS 2 MESOPORPHYRIN, NITRITE REDUCTASE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR B.BHASKAR,C.E.IMMOOS,F.SULC,M.S.COHEN,P.J.FARMER,T.L.POULOS REVDAT 4 23-AUG-23 1SBM 1 REMARK LINK REVDAT 3 11-OCT-17 1SBM 1 REMARK REVDAT 2 24-FEB-09 1SBM 1 VERSN REVDAT 1 14-JUN-05 1SBM 0 JRNL AUTH B.BHASKAR,C.E.IMMOOS,F.SULC,M.S.COHEN,P.J.FARMER,T.L.POULOS JRNL TITL CRYSTAL STRUCTURES OF RESTING (FE3+), REDUCED (FE2+) AND JRNL TITL 2 REDUCED-NO ADDUCT OF MESOPONE CYTOCHROME C PEROXIDASE JRNL TITL 3 (MPCCP) - R-ISOMER JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.69 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.69 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 1.72 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.0 REMARK 3 NUMBER OF REFLECTIONS : 46561 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.181 REMARK 3 FREE R VALUE : 0.200 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 480 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 10 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.69 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.75 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 9.24 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.4260 REMARK 3 BIN FREE R VALUE : 0.3845 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 216 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2374 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 44 REMARK 3 SOLVENT ATOMS : 583 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.20 REMARK 3 ESD FROM SIGMAA (A) : 0.20 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.21 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.18 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : 0.778 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1SBM COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-FEB-04. REMARK 100 THE DEPOSITION ID IS D_1000021580. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 10-JUN-03 REMARK 200 TEMPERATURE (KELVIN) : 116 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54178 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 47110 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.690 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : 16.32 REMARK 200 R MERGE (I) : 0.06200 REMARK 200 R SYM (I) : 0.04300 REMARK 200 FOR THE DATA SET : 20.9800 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.69 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.72 REMARK 200 COMPLETENESS FOR SHELL (%) : 96.9 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.59700 REMARK 200 R SYM FOR SHELL (I) : 0.53400 REMARK 200 FOR SHELL : 1.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1S73 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 59.91 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.07 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 2-METHYL-2,4-PENTANEDIOL (MPD), 100MM REMARK 280 POTASSIUM PHOSPHATE, PH 6.0, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 277K 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 53.41300 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 25.48700 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.83300 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 25.48700 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 53.41300 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.83300 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 300 REMARK: HELICAL BUNDLE PROTEIN PRESENT IN INTERMEMBRANE SPACE OF REMARK 300 BAKER'S YEAST. PROTEIN IS DIVIDED INTO 2 DISTINCT DISTAL AND REMARK 300 PROXIMAL HEME DOMIANS. PROTEIN BELONGS TO P212121 SPACE GROUP WITH REMARK 300 ONE MOLECULE IN THE ASYMMETRIC UNIT 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: 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 LYS A 123 CD - CE - NZ ANGL. DEV. = 15.0 DEGREES 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 LYS A 12 113.35 -34.61 REMARK 500 ASP A 33 56.17 -90.12 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 FMI A 296 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 175 NE2 REMARK 620 2 FMI A 296 NA 95.7 REMARK 620 3 FMI A 296 NB 93.8 90.1 REMARK 620 4 FMI A 296 NC 91.4 172.4 92.2 REMARK 620 5 FMI A 296 ND 92.7 88.7 173.5 88.2 REMARK 620 6 HOH A 541 O 172.1 77.3 82.6 95.8 90.9 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 FMI A 296 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2CYP RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF WILD TYPE CYTOCHROME C PEROXIDASE FROM REMARK 900 SACCHAROMYCES CEREVISIAE REMARK 900 RELATED ID: 1KOK RELATED DB: PDB REMARK 900 MESOPONE CYTOCHROME C PEROXIDASE: FUNCTIONAL MODEL OF HEME REMARK 900 OXYGENATED OXIDASES REMARK 900 RELATED ID: 1S73 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF MESOPONE CYTOCHROME C PEROXIDASE (R-ISOMER) REMARK 900 [MPCCP-R] REMARK 900 RELATED ID: 1SDQ RELATED DB: PDB REMARK 900 STRUCTURE OF REDUCED-NO ADDUCT OF MESOPONE CYTOCHROME C PEROXIDASE DBREF 1SBM A 1 294 UNP P00431 CCPR_YEAST 68 361 SEQRES 1 A 294 THR THR PRO LEU VAL HIS VAL ALA SER VAL GLU LYS GLY SEQRES 2 A 294 ARG SER TYR GLU ASP PHE GLN LYS VAL TYR ASN ALA ILE SEQRES 3 A 294 ALA LEU LYS LEU ARG GLU ASP ASP GLU TYR ASP ASN TYR SEQRES 4 A 294 ILE GLY TYR GLY PRO VAL LEU VAL ARG LEU ALA TRP HIS SEQRES 5 A 294 THR SER GLY THR TRP ASP LYS HIS ASP ASN THR GLY GLY SEQRES 6 A 294 SER TYR GLY GLY THR TYR ARG PHE LYS LYS GLU PHE ASN SEQRES 7 A 294 ASP PRO SER ASN ALA GLY LEU GLN ASN GLY PHE LYS PHE SEQRES 8 A 294 LEU GLU PRO ILE HIS LYS GLU PHE PRO TRP ILE SER SER SEQRES 9 A 294 GLY ASP LEU PHE SER LEU GLY GLY VAL THR ALA VAL GLN SEQRES 10 A 294 GLU MET GLN GLY PRO LYS ILE PRO TRP ARG CYS GLY ARG SEQRES 11 A 294 VAL ASP THR PRO GLU ASP THR THR PRO ASP ASN GLY ARG SEQRES 12 A 294 LEU PRO ASP ALA ASP LYS ASP ALA ASP TYR VAL ARG THR SEQRES 13 A 294 PHE PHE GLN ARG LEU ASN MET ASN ASP ARG GLU VAL VAL SEQRES 14 A 294 ALA LEU MET GLY ALA HIS ALA LEU GLY LYS THR HIS LEU SEQRES 15 A 294 LYS ASN SER GLY TYR GLU GLY PRO TRP GLY ALA ALA ASN SEQRES 16 A 294 ASN VAL PHE THR ASN GLU PHE TYR LEU ASN LEU LEU ASN SEQRES 17 A 294 GLU ASP TRP LYS LEU GLU LYS ASN ASP ALA ASN ASN GLU SEQRES 18 A 294 GLN TRP ASP SER LYS SER GLY TYR MET MET LEU PRO THR SEQRES 19 A 294 ASP TYR SER LEU ILE GLN ASP PRO LYS TYR LEU SER ILE SEQRES 20 A 294 VAL LYS GLU TYR ALA ASN ASP GLN ASP LYS PHE PHE LYS SEQRES 21 A 294 ASP PHE SER LYS ALA PHE GLU LYS LEU LEU GLU ASN GLY SEQRES 22 A 294 ILE THR PHE PRO LYS ASP ALA PRO SER PRO PHE ILE PHE SEQRES 23 A 294 LYS THR LEU GLU GLU GLN GLY LEU HET FMI A 296 44 HETNAM FMI FE-(4-MESOPORPHYRINONE)-R-ISOMER FORMUL 2 FMI C34 H36 FE N4 O5 2+ FORMUL 3 HOH *583(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 ALA A 83 5 5 HELIX 7 7 GLY A 84 GLY A 84 5 1 HELIX 8 8 LEU A 85 PHE A 99 1 15 HELIX 9 9 SER A 103 MET A 119 1 17 HELIX 10 10 PRO A 134 THR A 138 5 5 HELIX 11 11 ASP A 150 ARG A 160 1 11 HELIX 12 12 ASN A 164 GLY A 173 1 10 HELIX 13 13 ALA A 174 LEU A 177 5 4 HELIX 14 14 HIS A 181 GLY A 186 1 6 HELIX 15 15 ASN A 200 GLU A 209 1 10 HELIX 16 16 LEU A 232 ASP A 241 1 10 HELIX 17 17 ASP A 241 ASN A 253 1 13 HELIX 18 18 ASP A 254 ASN A 272 1 19 HELIX 19 19 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 2 LYS A 179 THR A 180 0 SHEET 2 B 2 GLY A 189 PRO A 190 -1 O GLY A 189 N THR A 180 SHEET 1 C 3 LYS A 212 LYS A 215 0 SHEET 2 C 3 GLU A 221 ASP A 224 -1 O GLN A 222 N GLU A 214 SHEET 3 C 3 MET A 230 MET A 231 -1 O MET A 231 N TRP A 223 LINK NE2 HIS A 175 FE FMI A 296 1555 1555 2.27 LINK FE FMI A 296 O HOH A 541 1555 1555 2.53 SITE 1 AC1 24 PRO A 44 VAL A 45 TRP A 51 PRO A 145 SITE 2 AC1 24 ASP A 146 PHE A 158 LEU A 171 MET A 172 SITE 3 AC1 24 ALA A 174 HIS A 175 GLY A 178 LYS A 179 SITE 4 AC1 24 THR A 180 HIS A 181 ASN A 184 SER A 185 SITE 5 AC1 24 TRP A 191 LEU A 232 THR A 234 HOH A 346 SITE 6 AC1 24 HOH A 347 HOH A 387 HOH A 541 HOH A 755 CRYST1 106.826 75.666 50.974 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 0.009361 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013216 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019618 0.00000