HEADER ELECTRON TRANSPORT PROTEIN 23-JUN-97 1C52 TITLE THERMUS THERMOPHILUS CYTOCHROME-C552: A NEW HIGHLY THERMOSTABLE TITLE 2 CYTOCHROME-C STRUCTURE OBTAINED BY MAD PHASING COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME-C552; COMPND 3 CHAIN: A; COMPND 4 OTHER_DETAILS: OXIDIZED STATE (FE+++) SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: THERMUS THERMOPHILUS; SOURCE 3 ORGANISM_TAXID: 274; SOURCE 4 CELLULAR_LOCATION: PERIPLASM KEYWDS ELECTRON TRANSPORT PROTEIN, CYTOCHROME-C552, MAD, THERMOSTABILITY EXPDTA X-RAY DIFFRACTION AUTHOR M.E.THAN,P.HOF,R.HUBER,G.P.BOURENKOV,H.D.BARTUNIK,G.BUSE,T.SOULIMANE REVDAT 3 23-OCT-24 1C52 1 REMARK LINK REVDAT 2 24-FEB-09 1C52 1 VERSN REVDAT 1 24-JUN-98 1C52 0 JRNL AUTH M.E.THAN,P.HOF,R.HUBER,G.P.BOURENKOV,H.D.BARTUNIK,G.BUSE, JRNL AUTH 2 T.SOULIMANE JRNL TITL THERMUS THERMOPHILUS CYTOCHROME-C552: A NEW HIGHLY JRNL TITL 2 THERMOSTABLE CYTOCHROME-C STRUCTURE OBTAINED BY MAD PHASING. JRNL REF J.MOL.BIOL. V. 271 629 1997 JRNL REFN ISSN 0022-2836 JRNL PMID 9281430 JRNL DOI 10.1006/JMBI.1997.1181 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH K.TITANI,L.H.ERICSSON,K.HON-NAMI,T.MIYAZAWA REMARK 1 TITL AMINO ACID SEQUENCE OF CYTOCHROME C-552 FROM THERMUS REMARK 1 TITL 2 THERMOPHILUS HB8 REMARK 1 REF BIOCHEM.BIOPHYS.RES.COMMUN. V. 128 781 1985 REMARK 1 REFN ISSN 0006-291X REMARK 1 REFERENCE 2 REMARK 1 AUTH H.NOJIMA,K.HON-NAMI,T.OSHIMA,H.NODA REMARK 1 TITL REVERSIBLE THERMAL UNFOLDING OF THERMOSTABLE CYTOCHROME REMARK 1 TITL 2 C-552 REMARK 1 REF J.MOL.BIOL. V. 122 33 1978 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 3 REMARK 1 AUTH K.HON-NAMI,T.OSHIMA REMARK 1 TITL PURIFICATION AND SOME PROPERTIES OF CYTOCHROME C-552 FROM AN REMARK 1 TITL 2 EXTREME THERMOPHILE, THERMUS THERMOPHILUS HB8 REMARK 1 REF J.BIOCHEM.(TOKYO) V. 82 769 1977 REMARK 1 REFN ISSN 0021-924X REMARK 2 REMARK 2 RESOLUTION. 1.28 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) : 1.28 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 100000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.1000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.3 REMARK 3 NUMBER OF REFLECTIONS : 35906 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.191 REMARK 3 FREE R VALUE : 0.224 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.700 REMARK 3 FREE R VALUE TEST SET COUNT : 1825 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 : 30 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.28 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.29 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 61.10 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 748 REMARK 3 BIN R VALUE (WORKING SET) : 0.3270 REMARK 3 BIN FREE R VALUE : 0.3040 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 2.66 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 34 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 : 997 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 43 REMARK 3 SOLVENT ATOMS : 196 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 12.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 15.10 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) : NULL 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) : 0.012 REMARK 3 BOND ANGLES (DEGREES) : 1.453 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.15 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.263 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED 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 1C52 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000172170. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : OCT-96 REMARK 200 TEMPERATURE (KELVIN) : 90 REMARK 200 PH : 8.2 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : MPG/DESY, HAMBURG REMARK 200 BEAMLINE : BW6 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.050 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL SI(111) REMARK 200 OPTICS : MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO, MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALEPACK, CCP4 (AGROVATA, REMARK 200 ROTAVATA, TRUNCATE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 36004 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.280 REMARK 200 RESOLUTION RANGE LOW (A) : 14.600 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.6 REMARK 200 DATA REDUNDANCY : 4.600 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.03300 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 14.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.28 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.31 REMARK 200 COMPLETENESS FOR SHELL (%) : 78.2 REMARK 200 DATA REDUNDANCY IN SHELL : 2.50 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.35700 REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: MADSYS, MADPRB, X-PLOR 3.851 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.30 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.58 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN WAS CRYSTALLIZED FROM 2.8 M REMARK 280 AMMONIUM SULFATE, 100 MM TRIS/HCL, PH 8.2 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y,X,Z+1/4 REMARK 290 4555 Y,-X,Z+3/4 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 34.41000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 17.20500 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 51.61500 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 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 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 GLN A 1 REMARK 475 ALA A 2 REMARK 475 LYS A 131 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 LYS A 6 CD CE NZ REMARK 480 GLU A 40 CD OE1 OE2 REMARK 480 GLN A 57 CD OE1 NE2 REMARK 480 LYS A 64 CD CE NZ REMARK 480 GLU A 78 CD OE1 OE2 REMARK 480 LYS A 95 CE NZ REMARK 480 GLU A 106 CG CD OE1 OE2 REMARK 480 LYS A 110 CE NZ REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 HE2 HIS A 15 FE HEM A 200 1.12 REMARK 500 H THR A 117 HE22 GLN A 120 1.28 REMARK 500 HD21 ASN A 85 H PHE A 103 1.31 REMARK 500 O HOH A 366 H2 HOH A 441 1.56 REMARK 500 O HOH A 355 H2 HOH A 458 1.59 REMARK 500 O HOH A 350 H1 HOH A 371 1.59 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 HZ2 LYS A 127 H1 HOH A 339 3665 1.21 REMARK 500 HH11 ARG A 112 H1 HOH A 436 2675 1.33 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 ALA A 2 99.55 61.64 REMARK 500 GLN A 16 151.72 76.02 REMARK 500 ALA A 25 -65.11 -135.25 REMARK 500 LEU A 130 -79.89 -76.08 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 200 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 15 NE2 REMARK 620 2 HEM A 200 NA 89.5 REMARK 620 3 HEM A 200 NB 88.9 90.4 REMARK 620 4 HEM A 200 NC 89.9 179.4 89.4 REMARK 620 5 HEM A 200 ND 89.8 90.7 178.3 89.4 REMARK 620 6 MET A 69 SD 172.1 82.7 92.0 97.9 89.4 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 200 DBREF 1C52 A 1 131 UNP P04164 C552_THETH 18 148 SEQRES 1 A 131 GLN ALA ASP GLY ALA LYS ILE TYR ALA GLN CYS ALA GLY SEQRES 2 A 131 CYS HIS GLN GLN ASN GLY GLN GLY ILE PRO GLY ALA PHE SEQRES 3 A 131 PRO PRO LEU ALA GLY HIS VAL ALA GLU ILE LEU ALA LYS SEQRES 4 A 131 GLU GLY GLY ARG GLU TYR LEU ILE LEU VAL LEU LEU TYR SEQRES 5 A 131 GLY LEU GLN GLY GLN ILE GLU VAL LYS GLY MET LYS TYR SEQRES 6 A 131 ASN GLY VAL MET SER SER PHE ALA GLN LEU LYS ASP GLU SEQRES 7 A 131 GLU ILE ALA ALA VAL LEU ASN HIS ILE ALA THR ALA TRP SEQRES 8 A 131 GLY ASP ALA LYS LYS VAL LYS GLY PHE LYS PRO PHE THR SEQRES 9 A 131 ALA GLU GLU VAL LYS LYS LEU ARG ALA LYS LYS LEU THR SEQRES 10 A 131 PRO GLN GLN VAL LEU ALA GLU ARG LYS LYS LEU GLY LEU SEQRES 11 A 131 LYS HET HEM A 200 47 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 HOH *196(H2 O) HELIX 1 1 GLY A 4 ILE A 7 1 4 HELIX 2 2 ALA A 9 HIS A 15 1 7 HELIX 3 3 HIS A 32 LEU A 37 1 6 HELIX 4 4 GLY A 42 TYR A 52 1 11 HELIX 5 5 ASP A 77 THR A 89 1 13 HELIX 6 6 ALA A 94 LYS A 96 5 3 HELIX 7 7 ALA A 105 LEU A 111 1 7 HELIX 8 8 PRO A 118 LEU A 128 1 11 SHEET 1 A 2 LEU A 54 VAL A 60 0 SHEET 2 A 2 MET A 63 MET A 69 -1 N MET A 69 O LEU A 54 LINK SG CYS A 11 CAB HEM A 200 1555 1555 1.86 LINK SG CYS A 14 CAC HEM A 200 1555 1555 1.88 LINK NE2 HIS A 15 FE HEM A 200 1555 1555 2.07 LINK SD MET A 69 FE HEM A 200 1555 1555 2.30 SITE 1 AC1 18 GLN A 10 CYS A 11 CYS A 14 HIS A 15 SITE 2 AC1 18 ALA A 25 PRO A 27 HIS A 32 TYR A 45 SITE 3 AC1 18 LEU A 46 LEU A 54 GLN A 55 GLY A 56 SITE 4 AC1 18 VAL A 60 GLY A 67 VAL A 68 MET A 69 SITE 5 AC1 18 PHE A 72 ARG A 125 CRYST1 47.100 47.100 68.820 90.00 90.00 90.00 P 41 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 0.021231 0.000000 0.000000 0.00000 SCALE2 0.000000 0.021231 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014531 0.00000