Linked Life Data

10563807

Source:http://linkedlifedata.com/resource/pubmed/id/10563807

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
46
pubmed:dateCreated
1999-12-20
pubmed:databankReference
pubmed:abstractText
In several strains of the photosynthetic bacterium Rubrivivax gelatinosus, the synthesis of a high midpoint potential cytochrome is enhanced 4-6-fold in dark aerobically grown cells compared with anaerobic photosynthetic growth. This observation explains the conflicting reports in the literature concerning the cytochrome c content for this species. This cytochrome was isolated and characterized in detail from Rubrivivax gelatinosus strain IL144. The redox midpoint potential of this cytochrome is +300 mV at pH 7. Its molecular mass, 9470 kDa, and its amino acid sequence, deduced from gene sequencing, support its placement in the cytochrome c8 family. The ratio of this cytochrome to reaction center lies between 0.8 and 1 for cells of Rvi. gelatinosus grown under dark aerobic conditions. Analysis of light-induced absorption changes shows that this high-potential cytochrome c8 can act in vivo as efficient electron donor to the photooxidized high-potential heme of the Rvi. gelatinosus reaction center.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0006-2960
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
15238-44
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Dark aerobic growth conditions induce the synthesis of a high midpoint potential cytochrome c8 in the photosynthetic bacterium Rubrivivax gelatinosus.
pubmed:affiliation
C.E.A./Cadarache-DSV-DEVM-Laboratoire de Bioénergétique Cellulaire, Saint-Paul-lez-Durance, France.
pubmed:publicationType
Journal Article