Linked Life Data

8612646

Source:http://linkedlifedata.com/resource/pubmed/id/8612646

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1996-6-3
pubmed:databankReference
pubmed:abstractText
A minor cytochrome c-551 component of Chromatium vinosum was previously found to efficiently couple electron transfer between the cytochrome bc1 complex and the photosynthetic reaction center. We have now determined the amino acid sequence of this cytochrome c-551 and find that it is homologous to cytochrome c8 (formerly called Pseudomonas cytochrome c-551). It is most similar to Methylophilus methylotrophus, Rhodocyclus tenuis, and Azotobacter vinelandii cytochromes c8 (respectively, 57%, 52% and 51%). The C. vinosum cytochrome c8 has a single residue insertion relative to Pseudomonas and Azotobacter cytochromes c8. It has fewer charged residues than its homologs and is essentially neutral, which may explain why it is less soluble than the others. The cytochromes c8 are only very distantly related to the cytochromes c2 found in other species of purple bacteria which are much larger in size and which usually mediate electron transfer between the cytochrome bc1 complex and the reaction center. The photosynthetic pathway in Chromatium thus appears to be radically different from that in purple non-sulfur bacteria.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0014-2956
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
236
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
689-96
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
A high-potential soluble cytochrome c-551 from the purple phototrophic bacterium Chromatium vinosum is homologous to cytochrome c8 from denitrifying pseudomonads.
pubmed:affiliation
Department of Biochemistry, Physiology and Microbiology, University of Gent, Belgium.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't