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- PDB-1wad: CYTOCHROME C3 WITH 4 HEME GROUPS AND ONE CALCIUM ION -

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Basic information

Entry
Database: PDB / ID: 1wad
TitleCYTOCHROME C3 WITH 4 HEME GROUPS AND ONE CALCIUM ION
ComponentsCYTOCHROME C3
KeywordsELECTRON TRANSPORT / CALCIUM BINDING
Function / homology
Function and homology information


anaerobic respiration / electron transfer activity / heme binding / metal ion binding
Similarity search - Function
Class III cytochrome C / Class III cytochrome C family / Cytochrome c, class III / Cytochrome C3 / Cytochrome C3 / Multiheme cytochrome c family profile. / Multiheme cytochrome superfamily / Alpha-Beta Complex / Alpha Beta
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING FE / Cytochrome c3
Similarity search - Component
Biological speciesDesulfovibrio gigas (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 1.8 Å
AuthorsMatias, P.M. / Morais, J. / Coelho, R. / Carrondo, M.A. / Wilson, K. / Dauter, Z. / Sieker, L.
CitationJournal: Protein Sci. / Year: 1996
Title: Cytochrome c3 from Desulfovibrio gigas: crystal structure at 1.8 A resolution and evidence for a specific calcium-binding site.
Authors: Matias, P.M. / Morais, J. / Coelho, R. / Carrondo, M.A. / Wilson, K. / Dauter, Z. / Sieker, L.
History
DepositionJan 10, 1996-
Revision 1.0Jan 27, 1997Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: CYTOCHROME C3
hetero molecules


Theoretical massNumber of molelcules
Total (without water)14,5106
Polymers12,0041
Non-polymers2,5065
Water1,838102
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)41.800, 50.100, 51.700
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein CYTOCHROME C3


Mass: 12003.509 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Desulfovibrio gigas (bacteria) / References: UniProt: P00133
#2: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#3: Chemical
ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME / Heme B


Mass: 616.487 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 102 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.25 Å3/Da / Density % sol: 40.9 %
Crystal growpH: 6.5 / Details: pH 6.5
Crystal grow
*PLUS
Temperature: 10 ℃ / Method: batch method
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
10.018 MTris-maleate11
20.0037 Msodium azide11
324.35 %PEG800011
42.2-3.3 mg/mlprotein11
560 %PEG800012

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Data collection

DiffractionMean temperature: 293 K
Diffraction sourceSource: SYNCHROTRON / Site: EMBL/DESY, Hamburg / Beamline: X11 / Wavelength: 0.928
DetectorType: MAR scanner 180 mm plate / Detector: IMAGE PLATE / Date: Oct 1, 1994 / Details: FOCUSSING MONOCHROMATOR A
RadiationMonochromator: GE(111) / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.928 Å / Relative weight: 1
ReflectionResolution: 1.8→36 Å / Num. obs: 10315 / % possible obs: 98.3 % / Observed criterion σ(I): 0 / Redundancy: 4.3 % / Rmerge(I) obs: 0.059
Reflection
*PLUS
Num. measured all: 44409
Reflection shell
*PLUS
Highest resolution: 1.8 Å / Lowest resolution: 1.83 Å / % possible obs: 96 % / Rmerge(I) obs: 0.188

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Processing

Software
NameClassification
SHELXL-93model building
SHELXL-93refinement
DENZOdata reduction
SCALEPACKdata scaling
SHELXL-93phasing
RefinementResolution: 1.8→36 Å / σ(F): 1
RfactorNum. reflection% reflection
Rfree0.219 -10 %
obs0.149 -98.3 %
all-9125 -
Refinement stepCycle: LAST / Resolution: 1.8→36 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms800 0 173 102 1075

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