The alternative complex III from Rhodothermus marinus – A prototype of a new family of quinol:electron acceptor oxidoreductases

The biochemical and genetic search for a bc 1 complex in Rhodothermus marinus was always fruitless; however, a functional equivalent, i.e. having quinol:cytochrome c oxidoreductase activity was characterized. Now, with the sequencing of R. marinus genome, it was possible to assign the N-terminal seq...

Full description

Saved in:
Bibliographic Details
Published in:FEBS letters 2007-10, Vol.581 (25), p.4831-4835
Main Authors: Pereira, Manuela M., Refojo, Patricia N., Hreggvidsson, Gudmundur O., Hjorleifsdottir, Sigridur, Teixeira, Miguel
Format: Article
Language:English
Subjects:
Amino Acid Sequence
Bacterial Proteins - chemistry
Bacterial Proteins - genetics
bc 1 Complex
bc1 Complex
Complex III
Electron Transport Complex III - chemistry
Electron Transport Complex III - classification
Electron Transport Complex III - genetics
Marine
MFIcc
Molecular Sequence Data
Multigene Family
Oxygen reductase
Protein Subunits - chemistry
Protein Subunits - genetics
Rhodothermus - enzymology
Rhodothermus marinus
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The biochemical and genetic search for a bc 1 complex in Rhodothermus marinus was always fruitless; however, a functional equivalent, i.e. having quinol:cytochrome c oxidoreductase activity was characterized. Now, with the sequencing of R. marinus genome, it was possible to assign the N-terminal sequences of several proteins of this complex to its coding genes. The alternative complex III from R. marinus has the same genomic organization of the so-called MFIcc complexes, proposed to be oxidoreductases of the respiratory and photosynthetic electron transfer chains. In this report, we establish undoubtedly the existence of an alternative complex III, a functional substitute of the bc 1 complex, by its identification at both the biochemical and genomic level.
ISSN:0014-5793
1873-3468
DOI:10.1016/j.febslet.2007.09.008