Linked Life Data

10411633

Source:http://linkedlifedata.com/resource/pubmed/id/10411633

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1999-8-6
pubmed:abstractText
The interactions of CYP11B1 (cytochrome P-45011beta), CYP11B2 (cytochrome P-450aldo) and CYP11A1 (cytochrome P-450scc) were investigated by cotransfection of their cDNA into COS-1 cells. The effect of CYP11A1 on CYP11B isozymes was examined by studying the conversion of 11-deoxycorticosterone to corticosterone, 18-hydroxycorticosterone and aldosterone. It was shown that when human or bovine CYP11B1 and CYP11A1 were cotransfected they competed for the reducing equivalents from the limiting source contained in COS-1 cells; this resulted in a decrease of the CYP11B activities without changes in the product formation patterns. The competition of human CYP11A1 with human CYP11B1 and CYP11B2 could be diminished with excess expression of bovine adrenodoxin. However, the coexpression of bovine CYP11B1 and CYP11A1 in the presence of adrenodoxin resulted in a stimulation of 11beta-hydroxylation activity of CYP11B1 and in a decrease of the 18-hydroxycorticosterone and aldosterone formation. These results suggest that the interactions of CYP11A1 with CYP11B1 and CYP11B2 do not have an identical regulatory function in human and in bovine adrenal tissue.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0014-2956
pubmed:author
pubmed:issnType
Print
pubmed:volume
262
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
720-6
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Interaction of CYP11B1 (cytochrome P-45011 beta) with CYP11A1 (cytochrome P-450scc) in COS-1 cells.
pubmed:affiliation
Universität des Saarlandes, Fachrichtung 12.4-Biochemie, Saarbrücken, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't