1E85 - Header Asymmetric Unit

HEADER ELECTRON TRANSPORT 15-SEP-00 1E85

TITLE CYTOCHROME C' FROM ALCALIGENES XYLOSOXIDANS-REDUCED TITLE 2 STRUCTURE WITH NO BOUND TO PROXIMAL SIDE OF HEME

COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C'; COMPND 3 CHAIN: A

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ACHROMOBACTER XYLOSOXIDANS; SOURCE 3 ORGANISM_TAXID: 85698; SOURCE 4 STRAIN: NCIB 11015; SOURCE 5 CELLULAR_LOCATION: PERIPLASM; SOURCE 6 OTHER_DETAILS: FORMERLY KNOWN AS ALCALIGENES SP.

KEYWDS ELECTRON TRANSPORT, CYTOCHROME, HEME, 4-HELIX BUNDLE, KEYWDS 2 NITRIC OXIDE

EXPDTA X-RAY DIFFRACTION

AUTHOR D.M.LAWSON,C.E.M.STEVENSON,C.R.ANDREW,R.R.EADY

REVDAT 3 24-FEB-09 1E85 1 VERSN REVDAT 2 01-AUG-03 1E85 1 REMARK HETATM REVDAT 1 06-NOV-00 1E85 0

JRNL AUTH D.M.LAWSON,C.E.M.STEVENSON,C.R.ANDREW,R.R.EADY JRNL TITL UNPRECEDENTED PROXIMAL BINDING OF NITRIC OXIDE TO JRNL TITL 2 HEME: IMPLICATIONS FOR GUANYLATE CYCLASE. JRNL REF EMBO J. V. 19 5661 2000 JRNL REFN ISSN 0261-4189 JRNL PMID 11060017 JRNL DOI 10.1093/EMBOJ/19.21.5661

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.J.DOBBS,H.R.FABER,B.F.ANDERSON,E.N.BAKER REMARK 1 TITL THE THREE-DIMENSIONAL STRUCTURE OF CYTOCHROME C' REMARK 1 TITL 2 FROM TWO ALCALIGENES SPECIES AND THEIR REMARK 1 TITL 3 IMPLICATIONS FOR FOUR-HELIX BUNDLES REMARK 1 REF ACTA CRYSTALLOGR.,SECT.D V. 52 356 1996 REMARK 1 REFN ISSN 0907-4449 REMARK 1 PMID 15299707 REMARK 1 DOI 10.1107/S0907444995008328

REMARK 2 REMARK 2 RESOLUTION. 1.35 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.35 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 40.0 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.0 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 3 NUMBER OF REFLECTIONS : 33925 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 + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.194 REMARK 3 FREE R VALUE : 0.220 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.0 REMARK 3 FREE R VALUE TEST SET COUNT : 1732 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 925 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 55 REMARK 3 SOLVENT ATOMS : 204 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 16 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 18 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.06 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.06 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.011 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.024 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.030 ; 0.050 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.0239; 0.04 REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.092 ; 0.150 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.170 ; 0.300 REMARK 3 MULTIPLE TORSION (A) : 0.267 ; 0.300 REMARK 3 H-BOND (X...Y) (A) : 0.140 ; 0.300 REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : 4.3 ; 7.0 REMARK 3 STAGGERED (DEGREES) : 12.8 ; 15.0 REMARK 3 TRANSVERSE (DEGREES) : 27.4 ; 20.0 REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.238 ; 3.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.623 ; 5.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.867 ; 6.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.959 ; 8.000 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: FE ATOM OF HEME REFINED WITH REMARK 3 ANISOTROPIC THERMAL PARAMETERS

REMARK 4 REMARK 4 1E85 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 15-SEP-00. REMARK 100 THE PDBE ID CODE IS EBI-5366.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-JAN-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.933 REMARK 200 MONOCHROMATOR : DIAMOND REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 33925 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.35 REMARK 200 RESOLUTION RANGE LOW (A) : 40.0 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 200 DATA REDUNDANCY : 6.8 REMARK 200 R MERGE (I) : 0.039 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 39.8 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.35 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.37 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.1 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.227 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.9 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 1CGO REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.30 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.71 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: HANGING DROP VAPOUR DIFFUSION. REMARK 280 PROTEIN AT CONCENTRATION 8 MG/ML WAS MIXED WITH AN REMARK 280 EQUAL VOLUME OF WELL SOLUTION CONSISTING OF 55-65% SATURATED REMARK 280 AMMONIUM SULFATE IN 100 MM HEPES BUFFER AT PH 7.5. REMARK 280 REDUCED USING MOTHER LIQUOR CONTAINING 20 MM SODIUM DITHIONITE, REMARK 280 THEN INCUBATED FOR 6 DAYS IN MOTHER LIQUOR SATURATED WITH NO.

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 65 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+1/6 REMARK 290 6555 X-Y,X,Z+5/6 REMARK 290 7555 Y,X,-Z+2/3 REMARK 290 8555 X-Y,-Y,-Z REMARK 290 9555 -X,-X+Y,-Z+1/3 REMARK 290 10555 -Y,-X,-Z+1/6 REMARK 290 11555 -X+Y,Y,-Z+1/2 REMARK 290 12555 X,X-Y,-Z+5/6 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 120.66200 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 60.33100 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 90.49650 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 30.16550 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 150.82750 REMARK 290 SMTRY1 7 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 7 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 120.66200 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 9 0.000000 0.000000 -1.000000 60.33100 REMARK 290 SMTRY1 10 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 10 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 30.16550 REMARK 290 SMTRY1 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 11 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 90.49650 REMARK 290 SMTRY1 12 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 12 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 150.82750 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 GENERATING THE BIOMOLECULE 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PQS REMARK 350 TOTAL BURIED SURFACE AREA: 3050 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 14780 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -15.1 KCAL/MOL 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 90.49650

REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 HOH A2096 LIES ON A SPECIAL POSITION.

REMARK 400 REMARK 400 COMPOUND REMARK 400 CYTOCHROME C' IS THE MOST WIDELY OCCURRING BACTERIAL REMARK 400 C-TYPE CYTOCHROME.

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 LYS A 126 REMARK 465 LYS A 127

REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 LYS A 4 CE NZ REMARK 470 LYS A 31 CE NZ REMARK 470 LYS A 80 CD CE NZ REMARK 470 LYS A 104 CE NZ REMARK 470 LYS A 125 CG CD CE 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 ARG A 12 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 ARG A 106 NE - CZ - NH2 ANGL. DEV. = -5.2 DEGREES REMARK 500 CYS A 116 CA - CB - SG ANGL. DEV. = 6.7 DEGREES REMARK 500 ASP A 121 CB - CG - OD2 ANGL. DEV. = -5.7 DEGREES REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE):

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 HEC A 128 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HEC A 128 NB REMARK 620 2 HEC A 128 NC 89.1 REMARK 620 3 HEC A 128 NA 90.4 168.7 REMARK 620 4 HEC A 128 ND 170.1 89.2 89.3 REMARK 620 5 NO A 130A N 95.3 88.7 102.5 94.4 REMARK 620 6 NO A 130A O 112.7 80.8 109.7 76.6 19.5 REMARK 620 7 NO A 130B N 92.3 97.6 93.7 97.6 9.4 26.9 REMARK 620 8 NO A 130B O 81.6 111.4 79.7 108.1 26.9 44.3 17.8 REMARK 620 N 1 2 3 4 5 6 7

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEC A 128 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO A 130

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1CGO RELATED DB: PDB REMARK 900 CYTOCHROME C' REMARK 900 RELATED ID: 1E83 RELATED DB: PDB REMARK 900 CYTOCHROME C' FROM ALCALIGENES XYLOSOXIDANS - OXIDIZED REMARK 900 STRUCTURE REMARK 900 RELATED ID: 1E84 RELATED DB: PDB REMARK 900 CYTOCHROME C' FROM ALCALIGENES XYLOSOXIDANS - REDUCED REMARK 900 STRUCTURE REMARK 900 RELATED ID: 1E86 RELATED DB: PDB REMARK 900 CYTOCHROME C' FROM ALCALIGENES XYLOSOXIDANS - REDUCED REMARK 900 STRUCTURE WITH CO BOUND TO DISTAL SIDE OF HEME

REMARK 999 REMARK 999 SEQUENCE REMARK 999 N-TERMINAL RESIDUE IS PYRROLIDONE CARBOXYLIC ACID (PCA)

DBREF 1E85 A 2 127 UNP P00138 CYCP_ALCXX 2 127

SEQRES 1 A 127 PCA PHE ALA LYS PRO GLU ASP ALA VAL LYS TYR ARG GLN SEQRES 2 A 127 SER ALA LEU THR LEU MET ALA SER HIS PHE GLY ARG MET SEQRES 3 A 127 THR PRO VAL VAL LYS GLY GLN ALA PRO TYR ASP ALA ALA SEQRES 4 A 127 GLN ILE LYS ALA ASN VAL GLU VAL LEU LYS THR LEU SER SEQRES 5 A 127 ALA LEU PRO TRP ALA ALA PHE GLY PRO GLY THR GLU GLY SEQRES 6 A 127 GLY ASP ALA ARG PRO GLU ILE TRP SER ASP ALA ALA SER SEQRES 7 A 127 PHE LYS GLN LYS GLN GLN ALA PHE GLN ASP ASN ILE VAL SEQRES 8 A 127 LYS LEU SER ALA ALA ALA ASP ALA GLY ASP LEU ASP LYS SEQRES 9 A 127 LEU ARG ALA ALA PHE GLY ASP VAL GLY ALA SER CYS LYS SEQRES 10 A 127 ALA CYS HIS ASP ALA TYR ARG LYS LYS LYS

MODRES 1E85 PCA A 1 GLU PYROGLUTAMIC ACID

HET PCA A 1 8 HET HEC A 128 43 HET NO A 130 4

HETNAM HEC HEME C HETNAM PCA PYROGLUTAMIC ACID HETNAM NO NITIRC OXIDE

FORMUL 2 HEC C34 H34 FE N4 O4 FORMUL 3 PCA C5 H7 N O3 FORMUL 4 NO N O FORMUL 5 HOH *204(H2 O1)

HELIX 1 1 LYS A 4 ARG A 25 1 22 HELIX 2 2 MET A 26 LYS A 31 1 6 HELIX 3 3 ASP A 37 ALA A 53 1 17 HELIX 4 4 PRO A 55 PHE A 59 5 5 HELIX 5 5 PRO A 70 ASP A 75 1 6 HELIX 6 6 ASP A 75 GLY A 100 1 26 HELIX 7 7 ASP A 101 ARG A 124 1 24

LINK C PCA A 1 N PHE A 2 1555 1555 1.33 LINK SG CYS A 116 CAB HEC A 128 1555 1555 1.84 LINK SG CYS A 119 CAC HEC A 128 1555 1555 1.86 LINK FE HEC A 128 N B NO A 130 1555 1555 1.93 LINK FE HEC A 128 O B NO A 130 1555 1555 2.84 LINK FE HEC A 128 O A NO A 130 1555 1555 2.87 LINK FE HEC A 128 N A NO A 130 1555 1555 2.04

SITE 1 AC1 20 ARG A 12 GLN A 13 LEU A 16 THR A 17 SITE 2 AC1 20 MET A 19 ALA A 20 TRP A 56 GLY A 66 SITE 3 AC1 20 ASP A 67 ILE A 72 GLN A 83 PHE A 86 SITE 4 AC1 20 CYS A 116 CYS A 119 TYR A 123 ARG A 124 SITE 5 AC1 20 NO A 130 HOH A2202 HOH A2203 HOH A2204 SITE 1 AC2 3 HIS A 120 ARG A 124 HEC A 128

CRYST1 53.035 53.035 180.993 90.00 90.00 120.00 P 65 2 2 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 0.018855 0.010886 0.000000 0.00000

SCALE2 0.000000 0.021772 0.000000 0.00000

SCALE3 0.000000 0.000000 0.005525 0.00000