SPT4, SPT5 and SPT6 interactions: effects on transcription and viability in Saccharomyces cerevisiae - PubMed (original) (raw)

SPT4, SPT5 and SPT6 interactions: effects on transcription and viability in Saccharomyces cerevisiae

M S Swanson et al. Genetics. 1992 Oct.

Abstract

The SPT4, SPT5 and SPT6 genes of Saccharomyces cerevisiae were identified originally by mutations that suppress delta insertion mutations at HIS4 and LYS2. Subsequent analysis has demonstrated that spt4, spt5 and spt6 mutations confer similar pleiotropic phenotypes. They suppress delta insertion mutations by altering transcription and are believed to be required for normal transcription of several other loci. We have now analyzed interactions between SPT4, SPT5 and SPT6. First, the combination of mutations in any two of these three genes causes lethality in haploids. Second, some recessive mutations in different members of this set fail to complement each other. Third, mutations in all three genes alter transcription in similar ways. Finally, the results of coimmunoprecipitation experiments demonstrate that at least the SPT5 and SPT6 proteins interact physically. Taken together, these genetic and biochemical results indicate that SPT4, SPT5 and SPT6 function together in a transcriptional process that is essential for viability in yeast.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Mol Cell Biol. 1988 Nov;8(11):4991-9 - PubMed
    1. Genetics. 1987 Apr;115(4):649-56 - PubMed
    1. Genetics. 1987 May;116(1):9-22 - PubMed
    1. Cell. 1986 Jan 17;44(1):53-63 - PubMed
    1. Genetics. 1986 Apr;112(4):741-53 - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources