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Effects of the Repression of sphpr1 Expression on Growth and mRNA Export in Fission Yeast
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  • Journal title : The Korean Journal of Microbiology
  • Volume 48, Issue 2,  2012, pp.171-174
  • Publisher : The Microbiological Society of Korea
  • DOI : 10.7845/kjm.2012.48.2.171
 Title & Authors
Effects of the Repression of sphpr1 Expression on Growth and mRNA Export in Fission Yeast
Lee, Hyun-Joo; Yoon, Jin-Ho;
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 Abstract
THOC1/Hpr1 is one subunit of THO complex that is an evolutionally conserved assembly involved in the mRNP packaging and mRNA export during transcription elongation. In fission yeast Schizosaccharomyces pombe, an ortholog (spHpr1) of THOC1/Hpr1 was identified based on sequence alignment. A deletion mutant in a diploid strain was constructed by replacing one of spHpr1-coding region with a gene using one-step gene disruption method. Tetrad analysis showed that the sphpr1 is essential for growth. Over-expression of sphpr1 from strong nmt1 promoter caused no defects of growth and mRNA export. However, repression of the sphpr1 expression resulted in growth inhibition accompanied by accumulation of poly RNA in the nucleus. These results suggest that spHpr1 is involved in mRNA export from the nucleus to cytoplasm.
 Keywords
S. pombe;sphpr1;mRNA export;THO complex;
 Language
Korean
 Cited by
1.
Effects of fission yeast ortholog of THOC5 on growth and mRNA export in fission yeast, The Korean Journal of Microbiology, 2015, 51, 4, 435  crossref(new windwow)
2.
Effects of Tho2, a component of THO complex, on growth and mRNA export in fission yeast, The Korean Journal of Microbiology, 2015, 51, 2, 181  crossref(new windwow)
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