• Medientyp: E-Artikel
  • Titel: Identification of a Plant Serine-Arginine-Rich Protein Similar to the Mammalian Splicing Factor SF2/ASF
  • Beteiligte: Lazar, Gabor; Schaal, Thomas; Maniatis, Tom; Goodman, Howard M.
  • Erschienen: National Academy of Sciences of the United States of America, 1995
  • Erschienen in: Proceedings of the National Academy of Sciences of the United States of America, 92 (1995) 17, Seite 7672-7676
  • Sprache: Englisch
  • ISSN: 0027-8424
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  • Beschreibung: <p>We show that the higher plant Arabidopsis thaliana has a serine-arginine-rich (SR) protein family whose members contain a phosphoepitope shared by the animal SR family of splicing factors. In addition, we report the cloning and characterization of a cDNA encoding a higher-plant SR protein from Arabidopsis, SR1, which has striking sequence and structural homology to the human splicing factor SF2/ASF. Similar to SF2/ASF, the plant SR1 protein promotes splice site switching in mammalian nuclear extracts. A novel feature of the Arabidopsis SR protein is a C-terminal domain containing a high concentration of proline, serine, and lysine residues (PSK domain), a composition reminiscent of histones. This domain includes a putative phosphorylation site for the mitotic kinase cyclin/p34<sup>cdc2</sup>.</p>
  • Zugangsstatus: Freier Zugang