Nucleic Acids Research, 1992, Vol. 20, No. 15 4009-4013
© 1992
MOLECULAR BIOLOGY |
The yeast homolog of the U1 snRNP protein 70K is encoded by the SNP1 gene
Department of Biochemistry and Institute of Human Genetics, University of Minnesota Medical School 4-225 Millard Hall, 435 Delaware Street SE, Minneapolis, MN 55455, USA
*To whom Correspondence should be addressed
Received June 30, 1992. The product of the yeast SNP1 gene has high homology to two domains of the metazoan U1 snRNP protein 70K, which binds to stem/loop I of the U1 RNA. However, the absence of other domains conserved in metazoan 70K and the minimal effect of yeast U1 RNA stem/loop I deletion make the assignment of SNP1 as yeast 70K less clear. To address this question, we have expressed the SNPl gene as a fusion protein in E. coli and developed a gel shift assay for U1 RNA binding. We show here that the product of the yeast SNP1 gene binds directly and specifically to the first 47 nucleotides of yeast U1 RNA, which include the stem/loop 1 structure. We therefore conclude that the SNP1 gene product is the yeast 70K homolog. This is the first yeast protein to be identified as a homolog of a metazoan snRNP protein.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
M. Golovkin and A. S.N. Reddy Expression of U1 Small Nuclear Ribonucleoprotein 70K Antisense Transcript Using APETALA3 Promoter Suppresses the Development of Sepals and Petals Plant Physiology, August 1, 2003; 132(4): 1884 - 1891. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. Zhang and M. Rosbash Identification of eight proteins that cross-link to pre-mRNA in the yeast commitment complex Genes & Dev., March 1, 1999; 13(5): 581 - 592. [Abstract] [Full Text] |
||||
![]() |
H.-R. Chen, S.-P. Jan, T. Y. Tsao, Y.-J. Sheu, J. Banroques, and S.-C. Cheng Snt309p, a Component of the Prp19p-Associated Complex That Interacts with Prp19p and Associates with the Spliceosome Simultaneously with or Immediately after Dissociation of U4 in the Same Manner as Prp19p Mol. Cell. Biol., April 1, 1998; 18(4): 2196 - 2204. [Abstract] [Full Text] |
||||
![]() |
S. Gee, S. W. Krauss, E. Miller, K. Aoyagi, J. Arenas, and J. G. Conboy Cloning of mDEAH9, a putative RNA helicase and mammalian homologue of Saccharomyces cerevisiae splicing factor Prp43 PNAS, October 28, 1997; 94(22): 11803 - 11807. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Awasthi, R. Palmer, M. Castro, C. D. Mobarak, and S. W. Ruby New Roles for the Snp1 and Exo84 Proteins in Yeast Pre-mRNA Splicing J. Biol. Chem., August 10, 2001; 276(33): 31004 - 31015. [Abstract] [Full Text] [PDF] |
||||




