Linked Life Data

17526854

Source:http://linkedlifedata.com/resource/pubmed/id/17526854

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 6
pubmed:dateCreated
2007-5-28
pubmed:abstractText
Ubiquinones (UQs) and menaquinones (MKs) perform distinct functions in Escherichia coli. Whereas, in general, UQs are primarily involved in aerobic respiration, the MKs serve as electron carriers in anaerobic respiration. Both UQs and MKs can accept electrons from various dehydrogenases, and may donate electrons to different oxidases. Hence, they play a role in maintaining metabolic flexibility in E. coli whenever this organism has to adapt to conditions with changing redox characteristics, such as oxygen availability. Here, the authors report on the changes in both the size and the redox state of the quinone pool when the environment changes from being well aerated to one with low oxygen availability. It is shown that such transitions are accompanied by a rapid increase in the demethylmenaquinone pool, and a slow increase in the MK pool. Moreover, in exponentially growing cultures in a well-shaken Erlenmeyer flask, it is observed that the assumption of a pseudo-steady state does not hold with respect to the redox state of the quinone pool.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1350-0872
pubmed:author
pubmed:issnType
Print
pubmed:volume
153
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1974-80
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Changes in the redox state and composition of the quinone pool of Escherichia coli during aerobic batch-culture growth.
pubmed:affiliation
Molecular Microbial Physiology Group, Swammerdam Institute for Life Sciences, BioCentrum, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't