Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2003-7-4
pubmed:databankReference
pubmed:abstractText
CTP:phosphocholine cytidylyltransferase (CCT) is a key regulatory enzyme in phosphatidylcholine (PtdCho) biosynthesis, and in mammals, there are two distinct genes that encode enzymes that catalyze this reaction. This work defines the structures of both the murine CCT genes (Pcyt1a and Pcyt1b) and identifies a new CCT protein, CCTbeta3, with a unique amino terminus that arises from an alternate initiation exon. CCTalpha is expressed in all tissues, and is most abundant in liver, kidney and heart. A second CCTalpha transcript is described that initiates from a separate untranslated exon that is most highly expressed in testis. The CCTbeta isoforms are most highly expressed in brain and reproductive tissues. CCTbeta3 is not expressed in embryonic brain tissues, but is a significant transcript in the adult. These data suggest unique roles for the CCT protein isoforms in the differential regulation of PtdCho biosynthesis in specific tissues.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
4
pubmed:volume
1633
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-12
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:12842190-Alternative Splicing, pubmed-meshheading:12842190-Amino Acid Sequence, pubmed-meshheading:12842190-Animals, pubmed-meshheading:12842190-Brain, pubmed-meshheading:12842190-CHO Cells, pubmed-meshheading:12842190-Cells, Cultured, pubmed-meshheading:12842190-Choline-Phosphate Cytidylyltransferase, pubmed-meshheading:12842190-Cricetinae, pubmed-meshheading:12842190-Exons, pubmed-meshheading:12842190-Genetic Vectors, pubmed-meshheading:12842190-Liver, pubmed-meshheading:12842190-Mice, pubmed-meshheading:12842190-Molecular Sequence Data, pubmed-meshheading:12842190-Phosphatidylcholines, pubmed-meshheading:12842190-Protein Isoforms, pubmed-meshheading:12842190-Protein Structure, Tertiary, pubmed-meshheading:12842190-RNA, Messenger, pubmed-meshheading:12842190-Substrate Specificity, pubmed-meshheading:12842190-Tissue Distribution, pubmed-meshheading:12842190-Transcription, Genetic
pubmed:year
2003
pubmed:articleTitle
Gene structure, expression and identification of a new CTP:phosphocholine cytidylyltransferase beta isoform.
pubmed:affiliation
Protein Science Division, Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105-2794, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't