1GWS

hexadecaheme high molecular weight cytochrome Hmc from Desulfovibrio vulgaris Hildenborough


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The Crystal Structure of the Hexadaca-Heme Cytochrome Hmc and a Structural Model of its Complex with Cytochrome C3

Czjzek, M.Elantak, L.Zamboni, V.Morelli, X.Dolla, A.Guerlesquin, F.Bruschi, M.

(2002) Structure 10: 1677


  • PubMed Abstract: 
  • Sulfate-reducing bacteria contain a variety of multi-heme c-type cytochromes. The cytochrome of highest molecular weight (Hmc) contains 16 heme groups and is part of a transmembrane complex involved in the sulfate respiration pathway. We present the ...

    Sulfate-reducing bacteria contain a variety of multi-heme c-type cytochromes. The cytochrome of highest molecular weight (Hmc) contains 16 heme groups and is part of a transmembrane complex involved in the sulfate respiration pathway. We present the 2.42 A resolution crystal structure of the Desulfovibrio vulgaris Hildenborough cytochrome Hmc and a structural model of the complex with its physiological electron transfer partner, cytochrome c(3), obtained by NMR restrained soft-docking calculations. The Hmc is composed of three domains, which exist independently in different sulfate-reducing species, namely cytochrome c(3), cytochrome c(7), and Hcc. The complex involves the last heme at the C-terminal region of the V-shaped Hmc and heme 4 of cytochrome c(3), and represents an example for specific cytochrome-cytochrome interaction.


    Organizational Affiliation

    Architecture et Fonction des Macromolécules Biologiques, IBSM-CNRS et Université Aix-Marseille I et II, 31 Chemin Joseph-Aiguier, 13402 Marseille cedex 20, France. czjzek@afmb.cnrs-mrs.fr




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HIGH-MOLECULAR-WEIGHT CYTOCHROME C
A
545Desulfovibrio vulgaris (strain Hildenborough / ATCC 29579 / NCIMB 8303)Gene Names: hmcA (hmc)
Find proteins for P24092 (Desulfovibrio vulgaris (strain Hildenborough / ATCC 29579 / NCIMB 8303))
Go to UniProtKB:  P24092
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download SDF File 
Download CCD File 
A
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
HEC
Query on HEC

Download SDF File 
Download CCD File 
A
HEME C
C34 H34 Fe N4 O4
HXQIYSLZKNYNMH-LJNAALQVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.201 
  • Space Group: P 62
Unit Cell:
Length (Å)Angle (°)
a = 108.386α = 90.00
b = 108.386β = 90.00
c = 102.809γ = 120.00
Software Package:
Software NamePurpose
DENZOdata reduction
SHARPphasing
REFMACrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-02-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance