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Reference - PMID:25530312 - Modulating the level of the Rpb7 subunit of RNA polymerase II affects cell separation in Schizosaccharomyces pombe.

Reference summary

PubMed ID
PMID:25530312
Title
Modulating the level of the Rpb7 subunit of RNA polymerase II affects cell separation in Schizosaccharomyces pombe.
Authors
Kumar D, Sharma N
Citation
Res Microbiol 2015 Jan;166(1):20-7
Publication year
2015
Abstract
The rpb7(+) gene encodes the seventh largest subunit of RNA polymerase II and is essential for survival of yeast cells. To gain insight into its functions, we expressed rpb7(+) under the control of the nmt1 promoter and investigated its role in regulating multiple phenotypes in Schizosaccharomyces pombe. We observed that low rpb7(+) levels resulted in slow growth of cells under optimum growth conditions. However, no growth defect was observed under different stress conditions tested in this study. Our results also showed that the most prominent phenotype of cells expressing reduced rpb7(+) is a defect in cell separation. Quantitative real-time PCR analysis further revealed that the transcription of specific cell septation genes was significantly reduced in these cells. Collectively, results presented in this study highlight the distinct role of Rpb7p in regulating cell separation in S. pombe.

Annotation

Single locus phenotype

FYPO:0004902 - curved, elongated, multinucleate multiseptate vegetative cell

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FYPO:0001407 - decreased cell population growth on glucose carbon source

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FYPO:0004903 - decreased level of cell separation after cytokinesis gene mRNA during vegetative growth

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FYPO:0000650 - increased septation index

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FYPO:0000674 - normal cell population growth at high temperature

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FYPO:0000962 - normal growth on hydrogen peroxide

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FYPO:0001420 - normal vegetative cell population growth rate

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FYPO:0001310 - normal viability in stationary phase

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FYPO:0001234 - slow vegetative cell population growth

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FYPO:0002177 - viable vegetative cell with normal cell morphology

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