Functional expression of cloned human splicing factor SF2: homology to rna-binding proteins, U1 70K, and drosophila splicing regulators

Adrian R. Krainer, Akila Mayeda, Diane Kozak, Georgia Binns

Research output: Contribution to journalArticle

381 Citations (Scopus)

Abstract

SF2 is a protein factor essential for constitutive pre-mRNA splicing in HeLa cell extracts and also activates proximal alternative 5′ splice sites in a concentration dependent manner. This latter property suggests a role for SF2 in preventing axon skipping, ensuring the accuracy of splicing, and regulating alternative splicing. Human SF2 cDNAs have been isolated and overexpressed in bacteria. Recombinant SF2 is active in splicing and stimulates proximal 5′ splice sites. SF2 has a C-terminal region rich in arginine-serine dipeptides, similar to the RS domains of the U1 snRNP 70K polypeptide and the Drosophila alternative splicing regulators transformer, transformer-2, and suppressor-of-white-apricot. Like transformer-2 and 70K, SF2 contains an RNP-type RNA recognition motif.

Original languageEnglish
Pages (from-to)383-394
Number of pages12
JournalCell
Volume66
Issue number2
DOIs
Publication statusPublished - 26-07-1991
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)

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