HEADER OXIDOREDUCTASE 02-NOV-99 1QO4 TITLE ARABIDOPSIS THALIANA PEROXIDASE A2 AT ROOM TEMPERATURE COMPND MOL_ID: 1; COMPND 2 MOLECULE: PEROXIDASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ATP A2, MYELOPEROXIDASE; COMPND 5 EC: 1.11.1.7; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ARABIDOPSIS THALIANA; SOURCE 3 ORGANISM_COMMON: MOUSE-EAR CRESS; SOURCE 4 ORGANISM_TAXID: 3702; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS PEROXIDASE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR A.HENRIKSEN,M.GAJHEDE REVDAT 7 13-DEC-23 1QO4 1 REMARK LINK REVDAT 6 05-JUL-17 1QO4 1 REMARK REVDAT 5 10-DEC-14 1QO4 1 HEADER JRNL REMARK VERSN REVDAT 5 2 1 SHEET MASTER REVDAT 4 24-FEB-09 1QO4 1 VERSN REVDAT 3 27-NOV-01 1QO4 1 JRNL REVDAT 2 29-NOV-00 1QO4 1 REMARK REVDAT 1 02-NOV-00 1QO4 0 JRNL AUTH K.L.NIELSEN,C.INDIANI,A.HENRIKSEN,A.FEIS,M.BECUCCI, JRNL AUTH 2 M.GAJHEDE,G.SMULEVICH,K.G.WELINDER JRNL TITL DIFFERENTIAL ACTIVITY AND STRUCTURE OF HIGHLY SIMILAR JRNL TITL 2 PEROXIDASES. SPECTROSCOPIC, CRYSTALLOGRAPHIC, AND ENZYMATIC JRNL TITL 3 ANALYSES OF LIGNIFYING ARABIDOPSIS THALIANA PEROXIDASE A2 JRNL TITL 4 AND HORSERADISH PEROXIDASE A2 JRNL REF BIOCHEMISTRY V. 40 11013 2001 JRNL REFN ISSN 0006-2960 JRNL PMID 11551197 JRNL DOI 10.1021/BI010661O REMARK 2 REMARK 2 RESOLUTION. 3.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.5 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 3.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 70416.120 REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.0 REMARK 3 NUMBER OF REFLECTIONS : 5560 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) : 0.183 REMARK 3 FREE R VALUE : 0.235 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.600 REMARK 3 FREE R VALUE TEST SET COUNT : 314 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.013 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 3.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 3.19 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 90.90 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 822 REMARK 3 BIN R VALUE (WORKING SET) : 0.2200 REMARK 3 BIN FREE R VALUE : 0.3710 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.30 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 46 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.055 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2249 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 45 REMARK 3 SOLVENT ATOMS : 68 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 15.00 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) : 0.26 REMARK 3 ESD FROM SIGMAA (A) : 0.29 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) : 0.32 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.58 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 1.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.30 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.120 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL 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 : FLAT MODEL REMARK 3 KSOL : 0.31 REMARK 3 BSOL : 10.00 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: A 3SIGMA FO-FC DENSITY APPEARS WITH A REMARK 3 CENTER 2.5 ANGSTROM ABOVE THE HEME IRON. A WATER MOLECULE COULD REMARK 3 NOT BE FITTED TO THIS DENSITY AS NO POSITIVE 2FO-FC ELECTRON REMARK 3 DENSITY IS RETURNED. THE POSITIVE FO-FC DENSITY COULD ORIGINATE REMARK 3 FROM A FRACTIONALLY OCCUPIED WATER MOLECULE. A FRACTIONALLY REMARK 3 OCCUPIED WATER MOLECULE IS NOT INCLUDED IN THIS POSITION DUE TO REMARK 3 THE RELATIVE LOW RESOLUTION OF THE DATA. REMARK 4 REMARK 4 1QO4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 02-NOV-99. REMARK 100 THE DEPOSITION ID IS D_1290004318. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-AUG-99 REMARK 200 TEMPERATURE (KELVIN) : 287.0 REMARK 200 PH : 6.50 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 RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU IMAGE PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 5887 REMARK 200 RESOLUTION RANGE HIGH (A) : 3.000 REMARK 200 RESOLUTION RANGE LOW (A) : 39.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 200 DATA REDUNDANCY : 4.600 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.16500 REMARK 200 FOR THE DATA SET : 8.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 3.10 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.3 REMARK 200 DATA REDUNDANCY IN SHELL : 3.60 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.29500 REMARK 200 FOR SHELL : 5.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS 0.5 REMARK 200 STARTING MODEL: PDB ENTRY 1PA2 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.10 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M MG(CH3COO)2, 0.1 M CACODYLATE PH REMARK 280 6.5, 20 % PEG8000, PH 6.50 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 23.14500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 40.39700 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.42400 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 40.39700 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.14500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.42400 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: PQS 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 400 REMARK 400 COMPOUND REMARK 400 MET A 0 INSERTED AS A CLONING ARTIFACT 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 65 -2.89 -54.87 REMARK 500 SER A 73 -55.50 -149.05 REMARK 500 PHE A 179 -7.76 -154.94 REMARK 500 PHE A 184 -56.52 -122.63 REMARK 500 SER A 286 62.44 16.66 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 CA A 375 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 43 O REMARK 620 2 ASP A 43 OD1 78.7 REMARK 620 3 VAL A 46 O 79.7 148.7 REMARK 620 4 GLY A 48 O 54.7 84.2 64.8 REMARK 620 5 ASP A 50 OD1 109.7 75.6 90.8 58.4 REMARK 620 6 SER A 52 OG 172.9 94.7 107.3 127.7 70.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A 374 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 169 NE2 REMARK 620 2 HEM A 374 NA 99.2 REMARK 620 3 HEM A 374 NB 85.6 90.0 REMARK 620 4 HEM A 374 NC 87.8 173.0 91.6 REMARK 620 5 HEM A 374 ND 92.9 89.3 178.2 89.2 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 376 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 170 OG1 REMARK 620 2 THR A 170 O 73.7 REMARK 620 3 ASP A 221 OD2 89.6 78.8 REMARK 620 4 THR A 224 O 155.8 82.2 88.0 REMARK 620 5 THR A 224 OG1 139.6 143.4 85.5 64.2 REMARK 620 6 ALA A 227 O 90.9 89.6 167.8 86.5 101.8 REMARK 620 7 ASP A 229 OD1 67.5 140.5 107.5 135.8 75.8 83.9 REMARK 620 N 1 2 3 4 5 6 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 375 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 376 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 374 DBREF 1QO4 A 0 0 PDB 1QO4 1QO4 0 0 DBREF 1QO4 A 1 305 UNP Q42578 Q42578 31 335 SEQRES 1 A 306 MET GLN LEU ASN ALA THR PHE TYR SER GLY THR CYS PRO SEQRES 2 A 306 ASN ALA SER ALA ILE VAL ARG SER THR ILE GLN GLN ALA SEQRES 3 A 306 LEU GLN SER ASP THR ARG ILE GLY ALA SER LEU ILE ARG SEQRES 4 A 306 LEU HIS PHE HIS ASP CYS PHE VAL ASN GLY CYS ASP ALA SEQRES 5 A 306 SER ILE LEU LEU ASP ASP THR GLY SER ILE GLN SER GLU SEQRES 6 A 306 LYS ASN ALA GLY PRO ASN VAL ASN SER ALA ARG GLY PHE SEQRES 7 A 306 ASN VAL VAL ASP ASN ILE LYS THR ALA LEU GLU ASN ALA SEQRES 8 A 306 CYS PRO GLY VAL VAL SER CYS SER ASP VAL LEU ALA LEU SEQRES 9 A 306 ALA SER GLU ALA SER VAL SER LEU ALA GLY GLY PRO SER SEQRES 10 A 306 TRP THR VAL LEU LEU GLY ARG ARG ASP SER LEU THR ALA SEQRES 11 A 306 ASN LEU ALA GLY ALA ASN SER SER ILE PRO SER PRO ILE SEQRES 12 A 306 GLU SER LEU SER ASN ILE THR PHE LYS PHE SER ALA VAL SEQRES 13 A 306 GLY LEU ASN THR ASN ASP LEU VAL ALA LEU SER GLY ALA SEQRES 14 A 306 HIS THR PHE GLY ARG ALA ARG CYS GLY VAL PHE ASN ASN SEQRES 15 A 306 ARG LEU PHE ASN PHE SER GLY THR GLY ASN PRO ASP PRO SEQRES 16 A 306 THR LEU ASN SER THR LEU LEU SER THR LEU GLN GLN LEU SEQRES 17 A 306 CYS PRO GLN ASN GLY SER ALA SER THR ILE THR ASN LEU SEQRES 18 A 306 ASP LEU SER THR PRO ASP ALA PHE ASP ASN ASN TYR PHE SEQRES 19 A 306 ALA ASN LEU GLN SER ASN ASP GLY LEU LEU GLN SER ASP SEQRES 20 A 306 GLN GLU LEU PHE SER THR THR GLY SER SER THR ILE ALA SEQRES 21 A 306 ILE VAL THR SER PHE ALA SER ASN GLN THR LEU PHE PHE SEQRES 22 A 306 GLN ALA PHE ALA GLN SER MET ILE ASN MET GLY ASN ILE SEQRES 23 A 306 SER PRO LEU THR GLY SER ASN GLY GLU ILE ARG LEU ASP SEQRES 24 A 306 CYS LYS LYS VAL ASN GLY SER HET HEM A 374 43 HET CA A 375 1 HET CA A 376 1 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM CA CALCIUM ION HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 CA 2(CA 2+) FORMUL 5 HOH *68(H2 O) HELIX 1 1 ASN A 13 ASP A 29 1 17 HELIX 2 2 ARG A 31 PHE A 45 1 15 HELIX 3 3 ALA A 51 LEU A 55 5 5 HELIX 4 4 SER A 63 ALA A 67 5 5 HELIX 5 5 GLY A 76 CYS A 91 1 16 HELIX 6 6 SER A 96 ALA A 112 1 17 HELIX 7 7 ASN A 130 ILE A 138 1 9 HELIX 8 8 SER A 144 GLY A 156 1 13 HELIX 9 9 ASN A 158 SER A 166 1 9 HELIX 10 10 GLY A 167 PHE A 171 5 5 HELIX 11 11 GLY A 177 LEU A 183 5 7 HELIX 12 12 ASN A 185 THR A 189 5 5 HELIX 13 13 ASN A 197 CYS A 208 1 12 HELIX 14 14 ASN A 230 SER A 238 1 9 HELIX 15 15 LEU A 243 THR A 252 1 10 HELIX 16 16 SER A 256 ASN A 267 1 12 HELIX 17 17 ASN A 267 ASN A 284 1 18 SHEET 1 AA 2 ARG A 173 ARG A 175 0 SHEET 2 AA 2 ILE A 217 ASN A 219 -1 O THR A 218 N ALA A 174 SSBOND 1 CYS A 11 CYS A 91 1555 1555 2.03 SSBOND 2 CYS A 44 CYS A 49 1555 1555 2.04 SSBOND 3 CYS A 97 CYS A 299 1555 1555 2.03 SSBOND 4 CYS A 176 CYS A 208 1555 1555 2.02 LINK O ASP A 43 CA CA A 375 1555 1555 2.24 LINK OD1 ASP A 43 CA CA A 375 1555 1555 2.63 LINK O VAL A 46 CA CA A 375 1555 1555 2.27 LINK O GLY A 48 CA CA A 375 1555 1555 3.01 LINK OD1 ASP A 50 CA CA A 375 1555 1555 2.70 LINK OG SER A 52 CA CA A 375 1555 1555 2.79 LINK NE2 HIS A 169 FE HEM A 374 1555 1555 2.26 LINK OG1 THR A 170 CA CA A 376 1555 1555 2.66 LINK O THR A 170 CA CA A 376 1555 1555 2.22 LINK OD2 ASP A 221 CA CA A 376 1555 1555 2.37 LINK O THR A 224 CA CA A 376 1555 1555 2.60 LINK OG1 THR A 224 CA CA A 376 1555 1555 2.49 LINK O ALA A 227 CA CA A 376 1555 1555 2.48 LINK OD1 ASP A 229 CA CA A 376 1555 1555 2.42 SITE 1 AC1 5 ASP A 43 VAL A 46 GLY A 48 ASP A 50 SITE 2 AC1 5 SER A 52 SITE 1 AC2 5 THR A 170 ASP A 221 THR A 224 ALA A 227 SITE 2 AC2 5 ASP A 229 SITE 1 AC3 22 ARG A 31 ALA A 34 SER A 35 ILE A 37 SITE 2 AC3 22 ARG A 38 PHE A 41 SER A 73 PRO A 139 SITE 3 AC3 22 SER A 140 PRO A 141 PHE A 152 ALA A 168 SITE 4 AC3 22 HIS A 169 GLY A 172 ARG A 173 ALA A 174 SITE 5 AC3 22 ARG A 175 VAL A 178 LEU A 243 SER A 245 SITE 6 AC3 22 HOH A2009 HOH A2068 CRYST1 46.290 74.848 80.794 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 0.021603 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013360 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012377 0.00000