Publication Date:
1993-10-22
Description:
The large subunit of the human pre-messenger RNA splicing factor U2 small nuclear ribonucleoprotein auxiliary factor (hU2AF65) is required for spliceosome assembly in vitro. A complementary DNA clone encoding the large subunit of Drosophila U2AF (dU2AF50) has been isolated. The dU2AF50 protein is closely related to its mammalian counterpart and contains three carboxyl-terminal ribonucleoprotein consensus sequence RNA binding domains and an amino-terminal arginine- and serine-rich (R/S) domain. Recombinant dU2AF50 protein complements mammalian splicing extracts depleted of U2AF activity. Germline transformation of Drosophila with the dU2AF50 complementary DNA rescues a lethal mutation, establishing that the dU2AF50 gene is essential for viability. R/S domains have been found in numerous metazoan splicing factors, but their function is unknown. The mutation in Drosophila U2AF will allow in vivo analysis of a conserved R/S domain-containing general splicing factor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kanaar, R -- Roche, S E -- Beall, E L -- Green, M R -- Rio, D C -- R01-HD28063/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1993 Oct 22;262(5133):569-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7692602" target="_blank"〉PubMed〈/a〉
Keywords:
Amino Acid Sequence
;
Animals
;
Base Sequence
;
Conserved Sequence
;
DNA, Complementary
;
Drosophila melanogaster/*genetics/growth & development
;
Female
;
Gene Transfer Techniques
;
Genes, Insect
;
Genes, Lethal
;
In Situ Hybridization
;
Male
;
Molecular Sequence Data
;
Mutation
;
*Nuclear Proteins
;
RNA/metabolism
;
RNA Precursors/*metabolism
;
*RNA Splicing
;
Recombinant Proteins/metabolism
;
Ribonucleoproteins/chemistry/*genetics/metabolism
;
Sequence Alignment
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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