Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
43
pubmed:dateCreated
1995-12-14
pubmed:abstractText
Two sequence elements located at -111 to -100 base pairs and -70 to -50 base pairs in the 5'-flanking region of the bovine CYP11A gene and in closely related positions in CYP11A of other species contain G-rich regions that are similar to the consensus Sp1-binding site. These sequences bind the purified transcription factor Sp1 as well as nuclear proteins from mouse Y1 adrenal cells that interact with an antibody specific for Sp1. Both of these CYP11A sequences support basal and cAMP-dependent transcription of reporter gene plasmids transfected into Y1 cells, and mutations within the G-rich -111/-100-base pair sequence that reduce or eliminate the binding of Sp1-related Y1 nuclear proteins also markedly reduce cAMP-induced transcription. cAMP-dependent transcription supported by both CYP11A sequence elements is mediated by protein kinase A at levels comparable to that promoted by different cAMP-response sequences and transcription factors in other genes involved in steroidogenesis. These results indicate that ACTH-dependent regulation of cholesterol side chain cleavage cytochrome P450 levels in the adrenal cortex which is mediated through cAMP involves the ubiquitous transcription factor Sp1.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
27
pubmed:volume
270
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
25402-10
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:7592707-Adrenal Cortex, pubmed-meshheading:7592707-Animals, pubmed-meshheading:7592707-Base Sequence, pubmed-meshheading:7592707-Binding Sites, pubmed-meshheading:7592707-Cattle, pubmed-meshheading:7592707-Cholesterol Side-Chain Cleavage Enzyme, pubmed-meshheading:7592707-Cyclic AMP, pubmed-meshheading:7592707-Cyclic AMP-Dependent Protein Kinases, pubmed-meshheading:7592707-DNA Mutational Analysis, pubmed-meshheading:7592707-Gene Expression Regulation, pubmed-meshheading:7592707-Genes, Reporter, pubmed-meshheading:7592707-Mice, pubmed-meshheading:7592707-Molecular Sequence Data, pubmed-meshheading:7592707-Nuclear Proteins, pubmed-meshheading:7592707-Promoter Regions, Genetic, pubmed-meshheading:7592707-Protein Binding, pubmed-meshheading:7592707-Sequence Homology, Amino Acid, pubmed-meshheading:7592707-Signal Transduction, pubmed-meshheading:7592707-Sp1 Transcription Factor, pubmed-meshheading:7592707-Species Specificity, pubmed-meshheading:7592707-Steroids, pubmed-meshheading:7592707-Transcription, Genetic
pubmed:year
1995
pubmed:articleTitle
Two Sp1-binding sites mediate cAMP-induced transcription of the bovine CYP11A gene through the protein kinase A signaling pathway.
pubmed:affiliation
Department of Biochemistry, Vanderbilt University, School of Medicine, Nashville, Tennessee 37232-0146, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.