Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1990-8-1
pubmed:abstractText
We have previously characterized a calmodulin gene from the organism Drosophila melanogaster. In the higher vertebrates a multi-gene system for encoding calmodulin is present and, in at least one invertebrate species, genes encoding highly related calmodulin isotypes exist. We have therefore searched for additional calmodulin genes within D. melanogaster. Although our searches were sensitive enough to detect a relatively divergent gene encoding a calmodulin family protein, we were unable to detect any additional genes for calmodulin per se. Further studies of the structure and expression of the single calmodulin gene of D. melanogaster have established that the gene contains a tiny additional 5' exon encoding only 50 residues of the 5' leader. Sequencing at the 3' terminus has established that the two transcript size classes derived from the gene are produced as a result of alternative polyadenylation site usage. The relative abundance of the two size classes of mRNAs differs throughout the life cycle, indicating developmental regulation of polyadenylation site usage.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0022-2836
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
213
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
599-605
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Drosophila melanogaster contains a single calmodulin gene. Further structure and expression studies.
pubmed:affiliation
Department of Biochemistry and Cell Biology, Rice University, Houston, TX 77005.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't