HEADER ELECTRON TRANSPORT (CYTOCHROME) 01-AUG-96 1CFO OBSLTE 29-APR-98 1CFO 1NEW TITLE CYTOCHROME C551.5, NMR, 20 STRUCTURES COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C551.5; COMPND 3 CHAIN: NULL; COMPND 4 SYNONYM: CYTOCHROME C7, TRIHEME CYTOCHROME; COMPND 5 OTHER_DETAILS: CLASS III OF C-TYPE CYTOCHROMES, FULLY COMPND 6 OXIDIZED FORM SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: DESULFUROMONAS ACETOXIDANS KEYWDS MULTIHEME CYTOCHROME, CYTOCHROME C7 EXPDTA NMR, 20 STRUCTURES AUTHOR L.BANCI,I.BERTINI,M.BRUSCHI,P.SOMPORNPISUT,P.TURANO REVDAT 1 16-JUN-97 1CFO 0 JRNL AUTH L.BANCI,I.BERTINI,M.BRUSCHI,P.SOMPORNPISUT,P.TURANO JRNL TITL NMR CHARACTERIZATION AND SOLUTION STRUCTURE JRNL TITL 2 DETERMINATION OF THE OXIDIZED CYTOCHROME C7 FROM JRNL TITL 3 DESULFUROMONAS ACETOXIDANS JRNL REF PROC.NATL.ACAD.SCI.USA V. 93 14396 1996 JRNL REFN ASTM PNASA6 US ISSN 0027-8424 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH I.B.COUTINHO,D.L.TURNER,M.Y.LIU,J.LEGALL,A.V.XAVIER REMARK 1 TITL STRUCTURE OF THE THREE-HAEM CORE OF CYTOCHROME REMARK 1 TITL 2 C551.5 DETERMINED BY 1H NMR REMARK 1 REF JBIC, J.BIOL.INORG.CHEM. V. 1 305 1996 REMARK 1 REFN ASTM JJBCFA ISSN 0949-8257 REMARK 1 REFERENCE 2 REMARK 1 AUTH J.J.MOURA,G.R.MOORE,R.J.WILLIAMS,I.PROBST,J.LEGALL, REMARK 1 AUTH 2 A.V.XAVIER REMARK 1 TITL NUCLEAR-MAGNETIC-RESONANCE STUDIES OF REMARK 1 TITL 2 DESULFUROMONAS ACETOXIDANS CYTOCHROME C551.5 (C7) REMARK 1 REF EUR.J.BIOCHEM. V. 144 433 1984 REMARK 1 REFN ASTM EJBCAI IX ISSN 0014-2956 REMARK 1 REFERENCE 3 REMARK 1 AUTH R.P.AMBLER REMARK 1 TITL THE AMINO ACID RESEQUENCE OF CYTOCHROME C-551.5 REMARK 1 TITL 2 (CYTOCHROME C7) FROM THE GREEN PHOTOSYNTHETIC REMARK 1 TITL 3 BACTERIUM CHLOROPSEUDOMONAS ETHYLICA REMARK 1 REF FEBS LETT. V. 18 351 1971 REMARK 1 REFN ASTM FEBLAL NE ISSN 0014-5793 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : DIANA REMARK 3 AUTHORS : GUNTERT,BRAUN,WUTHRICH NUMBER OF NON-HYDROGEN REMARK 3 ATOMS USED IN REFINEMENT. PROTEIN ATOMS : 994 REMARK 3 NUCLEIC ACID ATOMS : 0 HETEROGEN ATOMS : 225 REMARK 3 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE STRUCTURE IN AQUEOUS SOLUTION IS REMARK 3 REPRESENTED BY 20 CONFORMERS DETERMINED BY NMR AND DISTANCE REMARK 3 GEOMETRY CALCULATIONS. A FAMILY OF 20 STRUCTURES HAS BEEN REMARK 3 OBTAINED USING THE PROGRAM DIANA. THE EXPERIMENTAL NMR DATA REMARK 3 ARE DISTANCE CONSTRAINTS, MAINLY DERIVED FROM 1H-1H 2D NOESY REMARK 3 AND TORSION ANGLE CONSTRAINTS OBTAINED FROM 3JNH-HA COUPLING REMARK 3 CONSTANT. THE REDAC STRATEGY HAS BEEN USED DURING THE REMARK 3 CALCULATIONS FOR COLLECTING THE ANGLE CONSTRAINTS WHICH ARE REMARK 3 THEN USED AS INPUT DATA IN THE SUBSEQUENCE DIANA RUNS, EXCEPT REMARK 3 FOR THE FINAL CALCULATION. THE 20 STRUCTURES SHOW THE REMARK 3 FOLLOWING STATISTICS: ALL HEAVY ATOMS, FOR RESIDUES 3-66 RMSD REMARK 3 0.98 (0.19) A C,CA,N ATOMS, FOR RESIDUES 3-66 RMSD 0.70 (0.22) REMARK 3 A THE RMSD VALUES ARE CALCULATED WITH RESPECT TO THE AVERAGE REMARK 3 STRUCTURE. THERE ARE NO NOE VIOLATIONS > 0.30 ANGSTROMS. THERE REMARK 3 ARE NO EXPTL TORSION VIOLATIONS > 5 DEGREES. REMARK 4 REMARK 4 1CFO COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 6 REMARK 6 HEME AXIAL-LIGANDS ARE HISTIDINES. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : NULL REMARK 210 PH : NULL REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : NULL REMARK 210 SAMPLE CONTENTS : NULL REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : NULL REMARK 210 SPECTROMETER FIELD STRENGTH : NULL REMARK 210 SPECTROMETER MODEL : NULL REMARK 210 SPECTROMETER MANUFACTURER : NULL REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NULL REMARK 210 METHOD USED : NULL REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : NULL REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : NULL REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL REMARK 210 REMARK 210 REMARK: CYTOCHROME C7 FROM DESULFUROMONAS ACETOXIDANS WAS REMARK 210 PURIFIED AS PREVIOUSLY REPORTED. THE 1H NMR SAMPLES WERE REMARK 210 PREPARED BY DISSOLVING THE LYOPHILIZED PROTEIN IN 100 MM REMARK 210 PHOSPHATE BUFFER AT PH 6.5 TO GIVE 2-3 MM SOLUTIONS. THE 1H REMARK 210 NMR SPECTRA WERE RECORDED ON A BRUKER MSL 200, A DRX 500, OR REMARK 210 AN AMX 600 OPERATING AT 200.13 MHZ, 500.13 MHZ, OR 600.13 MHZ REMARK 210 SPECTROMETER, RESPECTIVELY. THE 200 MHZ 1H NMR 1D SPECTRA WERE REMARK 210 RECORDED USING A SUPERWEFT PULSE SEQUENCE WITH RECYCLE DELAY REMARK 210 OF 200-250 MS. 600 MHZ 1H NMR 1D SPECTRA WERE OBTAINED USING REMARK 210 PRESATURATION DURING RELAXATION DELAY (550-800 MS), TO REMARK 210 ELIMINATE THE WATER SIGNAL. THE 500 MHZ 1H NMR 1D SPECTRA WERE REMARK 210 ACQUIRED USING A WATERGATE PULSE SEQUENCE FOR WATER SIGNAL REMARK 210 SUPPRESSION. TPPI NOESY SPECTRA WERE RECORDED WITH REMARK 210 PRESATURATION OF THE SOLVENT SIGNAL BOTH DURING THE RELAXATION REMARK 210 DELAY AND THE MIXING TIME. TO OPTIMIZE THE DETECTION OF CROSS REMARK 210 PEAKS INVOLVING FAST-RELAXING RESONANCES, NOESY MAPS AT 292, REMARK 210 300 AND 308 K IN D2O (90%D2O/10%H2O) OR IN H2O (90%H2O/10%D2O) REMARK 210 SOLUTION WERE RECORDED ON THE FULL SPECTRAL WIDTH (49.0 PPM) REMARK 210 WITH RECYCLE TIME OF 550 MS AND MIXING TIME OF 15 MS. TO REMARK 210 OPTIMIZE THE OBSERVATION OF CONNECTIVITIES IN THE DIAMAGNETIC REMARK 210 REGION NOESY MAPS IN D2O AND H2O SOLUTIONS WERE RECORDED ON A REMARK 210 SMALLER SPECTRAL WIDTH (36.2 AND 17.3 PPM FOR NOESY AND NOESY REMARK 210 WATERGATE, RESPECTIVELY ), WITH RECYCLE TIMES OF 800 MS, AND REMARK 210 MIXING TIMES OF 25, 60 AND 100 MS. ANALOGOUSLY, TPPI HOHAHA REMARK 210 EXPERIMENTS, WITH PRESATURATION DURING THE RELAXATION DELAY, REMARK 210 WERE RECORDED ON SPECTRAL WIDTH OF 59.5 PPM (RECYCLE TIME OF REMARK 210 550 MS, SPIN LOCK TIME OF 18 MS) AND 30 PPM (RECYCLE TIME OF REMARK 210 800 MS AND SPIN LOCK TIMES OF 30, 60, AND 90 MS). A MAGNITUDE REMARK 210 COSY MAP WAS RECORDED IN H2O SOLUTION ON A 30 PPM SPECTRAL REMARK 210 WIDTH (RECYCLE TIME OF 800 MS). ALL 2D SPECTRA CONSISTED OF 4K REMARK 210 DATA POINTS IN THE F2 DIMENSION. FROM 800 TO 1024 EXPERIMENTS REMARK 210 WERE RECORDED IN THE F1 DIMENSION, USING 64 - 192 SCANS PER REMARK 210 EXPERIMENT. RAW DATA WERE MULTIPLIED IN BOTH DIMENSIONS BY A REMARK 210 PURE COSINE-SQUARED (NOESY, TOCSY) AND A PURE SINE-SQUARED REMARK 210 (COSY) BELL WINDOW FUNCTION AND FOURIER-TRANSFORMED TO OBTAIN REMARK 210 2048 X 2048 REAL DATA POINTS. A POLYNOMIAL BASE-LINE REMARK 210 CORRECTION WAS APPLIED IN BOTH DIRECTIONS. DATA PROCESSING WAS REMARK 210 PERFORMED USING A STANDARD BRUKER SOFTWARE PACKAGE. THE 2D REMARK 210 MAPS WERE ANALYZED USING THE AID OF THE PROGRAM XEASY. REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. 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 M RES CSSEQI PSI PHI REMARK 500 1 ALA 35 -99.94 63.30 REMARK 500 2 ALA 35 -84.36 58.88 REMARK 500 3 ALA 35 -83.75 59.16 REMARK 500 4 ALA 35 -80.01 62.16 REMARK 500 5 ALA 35 -86.82 57.52 REMARK 500 6 ALA 35 -82.55 60.13 REMARK 500 7 ALA 35 -83.14 60.06 REMARK 500 8 ALA 35 -79.71 61.57 REMARK 500 9 ALA 35 -84.26 59.34 REMARK 500 10 ALA 35 -93.34 63.51 REMARK 500 11 ASP 2 -49.49 83.49 REMARK 500 11 ALA 35 -86.65 57.74 REMARK 500 12 ALA 35 -96.34 63.39 REMARK 500 13 ALA 35 -82.71 59.97 REMARK 500 14 ALA 35 -83.34 59.89 REMARK 500 15 ALA 35 -87.95 56.85 REMARK 500 16 ALA 35 -88.42 56.51 REMARK 500 17 ASP 2 -33.65 87.13 REMARK 500 17 ALA 35 -85.19 57.99 REMARK 500 18 ALA 35 -82.44 59.77 REMARK 500 19 ALA 35 -86.62 57.69 REMARK 500 20 ALA 35 -98.33 63.91 REMARK 650 REMARK 650 HELIX REMARK 650 DETERMINATION METHOD: USING THE PROGRAM PROCHECK REMARK 850 REMARK 850 CORRECTION BEFORE RELEASE REMARK 850 ORIGINAL DEPOSITION REVISED PRIOR TO RELEASE REMARK 850 DATE REVISED: 16-NOV-1996 TRACKING NUMBER: T9228 DBREF 1CFO 1 68 UNP P00137 CYC3_DESAC 1 68 SEQRES 1 68 ALA ASP VAL VAL THR TYR GLU ASN LYS LYS GLY ASN VAL SEQRES 2 68 THR PHE ASP HIS LYS ALA HIS ALA GLU LYS LEU GLY CYS SEQRES 3 68 ASP ALA CYS HIS GLU GLY THR PRO ALA LYS ILE ALA ILE SEQRES 4 68 ASP LYS LYS SER ALA HIS LYS ASP ALA CYS LYS THR CYS SEQRES 5 68 HIS LYS SER ASN ASN GLY PRO THR LYS CYS GLY GLY CYS SEQRES 6 68 HIS ILE LYS HET HEC 69 75 HET HEC 70 75 HET HEC 71 75 HETNAM HEC HEME C FORMUL 2 HEC 3(C34 H34 FE N4 O4) HELIX 1 H1 HIS 17 LEU 24 5 8 HELIX 2 H2 ASP 27 CYS 29 1 3 SHEET 1 S1 2 VAL 3 ASN 8 0 SHEET 2 S1 2 GLY 11 ASP 16 -1 LINK FE HEC 69 NE2 HIS 17 LINK FE HEC 69 NE2 HIS 30 LINK CAB HEC 69 SG CYS 26 LINK CAC HEC 69 SG CYS 29 LINK FE HEC 70 NE2 HIS 20 LINK FE HEC 70 NE2 HIS 53 LINK CAB HEC 70 SG CYS 49 LINK CAC HEC 70 SG CYS 52 LINK FE HEC 71 NE2 HIS 45 LINK FE HEC 71 NE2 HIS 66 LINK CAC HEC 71 SG CYS 65 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MODEL 1