HEADER ELECTRON TRANSPORT 07-APR-99 1C6O TITLE CRYSTAL STRUCTURE OF OXIDIZED CYTOCHROME C6 FROM THE GREEN ALGAE TITLE 2 SCENEDESMUS OBLIQUUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C6; COMPND 3 CHAIN: A, B; COMPND 4 OTHER_DETAILS: OXIDIZED STATE (FE+++) SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SCENEDESMUS OBLIQUUS; SOURCE 3 ORGANISM_TAXID: 3088; SOURCE 4 STRAIN: D3; SOURCE 5 ORGANELLE: CHLOROPLAST; SOURCE 6 CELLULAR_LOCATION: THYLAKOID LUMEN OF CHLOROPLAST; SOURCE 7 OTHER_DETAILS: GENE IS NUCLEAR PETJ KEYWDS ELECTRON TRANSPORT PROTEIN, CYTOCHROME-C6, OXIDIZED STATE, KEYWDS 2 PHOTOSYNTHESIS, DIMERIZATION, ELECTRON TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR J.SCHNACKENBERG,M.E.THAN,K.MANN,G.WIEGAND,R.HUBER,W.REUTER REVDAT 5 20-NOV-24 1C6O 1 REMARK REVDAT 4 09-AUG-23 1C6O 1 REMARK LINK REVDAT 3 04-OCT-17 1C6O 1 REMARK REVDAT 2 24-FEB-09 1C6O 1 VERSN REVDAT 1 12-APR-00 1C6O 0 JRNL AUTH J.SCHNACKENBERG,M.E.THAN,K.MANN,G.WIEGAND,R.HUBER,W.REUTER JRNL TITL AMINO ACID SEQUENCE, CRYSTALLIZATION AND STRUCTURE JRNL TITL 2 DETERMINATION OF REDUCED AND OXIDIZED CYTOCHROME C6 FROM THE JRNL TITL 3 GREEN ALGA SCENEDESMUS OBLIQUUS. JRNL REF J.MOL.BIOL. V. 290 1019 1999 JRNL REFN ISSN 0022-2836 JRNL PMID 10438600 JRNL DOI 10.1006/JMBI.1999.2944 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 100000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0100 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 95.5 REMARK 3 NUMBER OF REFLECTIONS : 14435 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) : 0.213 REMARK 3 FREE R VALUE : 0.279 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.430 REMARK 3 FREE R VALUE TEST SET COUNT : 1425 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 : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.03 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 82.41 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 552 REMARK 3 BIN R VALUE (WORKING SET) : 0.3751 REMARK 3 BIN FREE R VALUE : 0.4173 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 7.71 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 57 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 : 1322 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 86 REMARK 3 SOLVENT ATOMS : 96 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 39.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 32.60 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) : 0.32 REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.013 REMARK 3 BOND ANGLES (DEGREES) : 1.897 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.18 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.856 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 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: REMARK 3 OCCUPANCY AND B-FACTOR ARE SET TO ZERO FOR ALL ATOMS THAT REMARK 3 ARE NOT DEFINED IN THE FINAL 2FO-FC ELECTRON DENSITY. REMARK 4 REMARK 4 1C6O COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-APR-99. REMARK 100 THE DEPOSITION ID IS D_1000000805. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 291 REMARK 200 PH : 8.5 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) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (AGROVATA, ROTAVATA, REMARK 200 TRUNCATE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14441 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.7 REMARK 200 DATA REDUNDANCY : 5.000 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 6.60000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 6.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.07 REMARK 200 COMPLETENESS FOR SHELL (%) : 92.4 REMARK 200 DATA REDUNDANCY IN SHELL : 4.20 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 34.4000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1C6R REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.70 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 8.5 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+2/3 REMARK 290 6555 -X,-X+Y,-Z+1/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 50.81333 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 101.62667 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 101.62667 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 50.81333 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: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 475 REMARK 475 ZERO OCCUPANCY RESIDUES REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY. REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE) REMARK 475 M RES C SSEQI REMARK 475 SER B 1 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 SER A 1 N REMARK 480 LYS A 8 NZ REMARK 480 ARG A 33 NH1 NH2 REMARK 480 LYS A 34 CD CE NZ REMARK 480 ASP A 87 OD1 OD2 REMARK 480 TRP A 89 O OXT REMARK 480 ALA B 2 N CB REMARK 480 LYS B 34 NZ 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 PRO A 28 C - N - CA ANGL. DEV. = 9.7 DEGREES REMARK 500 PRO B 28 C - N - CA ANGL. DEV. = 9.2 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 VAL A 26 -60.84 -92.63 REMARK 500 PRO A 28 -44.99 -29.81 REMARK 500 LEU A 32 30.61 -96.42 REMARK 500 LYS A 58 116.58 -171.37 REMARK 500 PRO B 28 -38.26 -34.85 REMARK 500 LYS B 58 109.93 -168.58 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 90 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 19 NE2 REMARK 620 2 HEM A 90 NA 89.3 REMARK 620 3 HEM A 90 NB 92.7 91.2 REMARK 620 4 HEM A 90 NC 91.5 177.9 90.6 REMARK 620 5 HEM A 90 ND 86.3 88.4 179.0 89.7 REMARK 620 6 MET A 61 SD 173.7 84.8 89.7 94.3 91.2 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 90 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 19 NE2 REMARK 620 2 HEM B 90 NA 90.7 REMARK 620 3 HEM B 90 NB 93.9 88.4 REMARK 620 4 HEM B 90 NC 89.1 179.6 91.3 REMARK 620 5 HEM B 90 ND 84.1 88.9 176.5 91.5 REMARK 620 6 MET B 61 SD 170.1 80.0 89.3 100.2 92.3 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 90 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 90 DBREF 1C6O A 1 89 UNP P57736 CYC6_SCEOB 1 89 DBREF 1C6O B 1 89 UNP P57736 CYC6_SCEOB 1 89 SEQRES 1 A 89 SER ALA ASP LEU ALA LEU GLY LYS GLN THR PHE GLU ALA SEQRES 2 A 89 ASN CYS ALA ALA CYS HIS ALA GLY GLY ASN ASN SER VAL SEQRES 3 A 89 ILE PRO ASP HIS THR LEU ARG LYS ALA ALA MET GLU GLN SEQRES 4 A 89 PHE LEU GLN GLY GLY PHE ASN LEU GLU ALA ILE THR TYR SEQRES 5 A 89 GLN VAL GLU ASN GLY LYS GLY ALA MET PRO ALA TRP SER SEQRES 6 A 89 GLY THR LEU ASP ASP ASP GLU ILE ALA ALA VAL ALA ALA SEQRES 7 A 89 TYR VAL TYR ASP GLN ALA SER GLY ASP LYS TRP SEQRES 1 B 89 SER ALA ASP LEU ALA LEU GLY LYS GLN THR PHE GLU ALA SEQRES 2 B 89 ASN CYS ALA ALA CYS HIS ALA GLY GLY ASN ASN SER VAL SEQRES 3 B 89 ILE PRO ASP HIS THR LEU ARG LYS ALA ALA MET GLU GLN SEQRES 4 B 89 PHE LEU GLN GLY GLY PHE ASN LEU GLU ALA ILE THR TYR SEQRES 5 B 89 GLN VAL GLU ASN GLY LYS GLY ALA MET PRO ALA TRP SER SEQRES 6 B 89 GLY THR LEU ASP ASP ASP GLU ILE ALA ALA VAL ALA ALA SEQRES 7 B 89 TYR VAL TYR ASP GLN ALA SER GLY ASP LYS TRP HET HEM A 90 43 HET HEM B 90 43 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 3 HEM 2(C34 H32 FE N4 O4) FORMUL 5 HOH *96(H2 O) HELIX 1 1 LEU A 4 ASN A 14 1 11 HELIX 2 2 ALA A 16 GLY A 22 1 7 HELIX 3 3 LYS A 34 PHE A 40 1 7 HELIX 4 4 LEU A 47 ASN A 56 1 10 HELIX 5 5 ASP A 70 SER A 85 1 16 HELIX 6 6 LEU B 4 ASN B 14 1 11 HELIX 7 7 ALA B 16 GLY B 22 1 7 HELIX 8 8 LYS B 34 PHE B 40 1 7 HELIX 9 9 LEU B 47 ASN B 56 1 10 HELIX 10 10 ASP B 70 SER B 85 1 16 LINK SG CYS A 15 CAB HEM A 90 1555 1555 1.85 LINK SG CYS A 18 CAC HEM A 90 1555 1555 1.89 LINK SG CYS B 15 CAB HEM B 90 1555 1555 1.86 LINK SG CYS B 18 CAC HEM B 90 1555 1555 1.86 LINK NE2 HIS A 19 FE HEM A 90 1555 1555 2.01 LINK SD MET A 61 FE HEM A 90 1555 1555 2.37 LINK NE2 HIS B 19 FE HEM B 90 1555 1555 2.12 LINK SD MET B 61 FE HEM B 90 1555 1555 2.39 SITE 1 AC1 20 ASN A 14 CYS A 15 CYS A 18 HIS A 19 SITE 2 AC1 20 ASN A 24 VAL A 26 ILE A 27 HIS A 30 SITE 3 AC1 20 THR A 31 LEU A 32 ALA A 36 MET A 37 SITE 4 AC1 20 PHE A 40 LEU A 41 GLN A 53 VAL A 54 SITE 5 AC1 20 LYS A 58 MET A 61 HOH A 417 HOH A 464 SITE 1 AC2 18 GLU A 48 ASN B 14 CYS B 15 CYS B 18 SITE 2 AC2 18 HIS B 19 ASN B 24 HIS B 30 THR B 31 SITE 3 AC2 18 LEU B 32 ALA B 36 PHE B 40 LEU B 41 SITE 4 AC2 18 GLN B 53 LYS B 58 MET B 61 TRP B 64 SITE 5 AC2 18 HOH B 413 HOH B 430 CRYST1 49.560 49.560 152.440 90.00 90.00 120.00 P 31 2 1 12 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 0.020177 0.011649 0.000000 0.00000 SCALE2 0.000000 0.023299 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006560 0.00000