Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
17
pubmed:dateCreated
1989-3-23
pubmed:abstractText
The (Na+,K+)-ATPase ATP hydrolyzing activity from rabbit kidney medulla basolateral membrane vesicles was studied as a function of the cholesterol content of the basolateral membranes. The cholesterol content of the membranes was modified by incubation with phospholipid vesicles. When the cholesterol content was increased above that found in the native membrane, the (Na+,K+)-ATPase ATP hydrolyzing activity was inhibited. When the cholesterol content was decreased from that found in the native membranes, the (Na+,K+)-ATPase ATP hydrolyzing activity was inhibited. Analogous effects were found with the K+-activated phosphatase activity of the same membrane vesicles. Therefore, at low cholesterol contents, cholesterol was stimulatory, and at high cholesterol contents, cholesterol was inhibitory. The structural specificity of this effect was tested by introducing lanosterol and ergosterol as 50% of the membrane sterol. Ergosterol was the least effective at supporting (Na+,K+)-ATPase ATP hydrolyzing activity, while lanosterol was more effective, but still not as effective as cholesterol.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-2960
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6449-52
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Effects of cholesterol on (Na+,K+)-ATPase ATP hydrolyzing activity in bovine kidney.
pubmed:affiliation
Department of Biochemistry, State University of New York, Buffalo 14214.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.