Suppressors of Yeast Actin Mutations (original) (raw)

Abstract

Suppressors of a temperature-sensitive mutation (act1-1) in the single actin gene of Saccharomyces cerevisiae were selected that had simultaneously acquired a cold-sensitive growth phenotype. Five genes, called SAC (suppressor of actin) were defined by complementation tests; both suppression and cold-sensitive phenotypes were recessive. Three of the genes (SAC1, SAC2 and SAC3) were subjected to extensive genetic and phenotypic analysis, including molecular cloning. Suppression was found to be allele-specific with respect to actin alleles. The sac mutants, even in ACT1(+) genetic backgrounds, displayed phenotypes similar to those of actin mutants, notably aberrant organization of intracellular actin and deposition of chitin at the cell surface. These results are interpreted as being consistent with the idea that the SAC genes encode proteins that interact with actin, presumably as components or controllers of the assembly or stability of the yeast actin cytoskeleton. Two unexpected properties of the SAC1 gene were noted. Disruptions of the gene indicated that its function is essential only at temperatures below about 17° and all sac1 alleles are inviable when combined with act1-2. These properties are interpreted in the context of the evolution of the actin cytoskeleton of yeast.

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Selected References

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  1. Adams A. E., Pringle J. R. Relationship of actin and tubulin distribution to bud growth in wild-type and morphogenetic-mutant Saccharomyces cerevisiae. J Cell Biol. 1984 Mar;98(3):934–945. doi: 10.1083/jcb.98.3.934. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Boyer H. W., Roulland-Dussoix D. A complementation analysis of the restriction and modification of DNA in Escherichia coli. J Mol Biol. 1969 May 14;41(3):459–472. doi: 10.1016/0022-2836(69)90288-5. [DOI] [PubMed] [Google Scholar]
  3. Gallwitz D., Seidel R. Molecular cloning of the actin gene from yeast Saccharomyces cerevisiae. Nucleic Acids Res. 1980 Mar 11;8(5):1043–1059. doi: 10.1093/nar/8.5.1043. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Holm C., Meeks-Wagner D. W., Fangman W. L., Botstein D. A rapid, efficient method for isolating DNA from yeast. Gene. 1986;42(2):169–173. doi: 10.1016/0378-1119(86)90293-3. [DOI] [PubMed] [Google Scholar]
  5. Huang B., Ramanis Z., Luck D. J. Suppressor mutations in Chlamydomonas reveal a regulatory mechanism for Flagellar function. Cell. 1982 Jan;28(1):115–124. doi: 10.1016/0092-8674(82)90381-6. [DOI] [PubMed] [Google Scholar]
  6. Huffaker T. C., Hoyt M. A., Botstein D. Genetic analysis of the yeast cytoskeleton. Annu Rev Genet. 1987;21:259–284. doi: 10.1146/annurev.ge.21.120187.001355. [DOI] [PubMed] [Google Scholar]
  7. Ito H., Fukuda Y., Murata K., Kimura A. Transformation of intact yeast cells treated with alkali cations. J Bacteriol. 1983 Jan;153(1):163–168. doi: 10.1128/jb.153.1.163-168.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Jarvik J., Botstein D. Conditional-lethal mutations that suppress genetic defects in morphogenesis by altering structural proteins. Proc Natl Acad Sci U S A. 1975 Jul;72(7):2738–2742. doi: 10.1073/pnas.72.7.2738. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Ma H., Kunes S., Schatz P. J., Botstein D. Plasmid construction by homologous recombination in yeast. Gene. 1987;58(2-3):201–216. doi: 10.1016/0378-1119(87)90376-3. [DOI] [PubMed] [Google Scholar]
  10. Neff N. F., Thomas J. H., Grisafi P., Botstein D. Isolation of the beta-tubulin gene from yeast and demonstration of its essential function in vivo. Cell. 1983 May;33(1):211–219. doi: 10.1016/0092-8674(83)90350-1. [DOI] [PubMed] [Google Scholar]
  11. Ng R., Abelson J. Isolation and sequence of the gene for actin in Saccharomyces cerevisiae. Proc Natl Acad Sci U S A. 1980 Jul;77(7):3912–3916. doi: 10.1073/pnas.77.7.3912. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Novick P., Botstein D. Phenotypic analysis of temperature-sensitive yeast actin mutants. Cell. 1985 Feb;40(2):405–416. doi: 10.1016/0092-8674(85)90154-0. [DOI] [PubMed] [Google Scholar]
  13. Novick P., Field C., Schekman R. Identification of 23 complementation groups required for post-translational events in the yeast secretory pathway. Cell. 1980 Aug;21(1):205–215. doi: 10.1016/0092-8674(80)90128-2. [DOI] [PubMed] [Google Scholar]
  14. Orr-Weaver T. L., Szostak J. W., Rothstein R. J. Yeast transformation: a model system for the study of recombination. Proc Natl Acad Sci U S A. 1981 Oct;78(10):6354–6358. doi: 10.1073/pnas.78.10.6354. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Roberts R. L., Bowers B., Slater M. L., Cabib E. Chitin synthesis and localization in cell division cycle mutants of Saccharomyces cerevisiae. Mol Cell Biol. 1983 May;3(5):922–930. doi: 10.1128/mcb.3.5.922. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Rose M. D., Novick P., Thomas J. H., Botstein D., Fink G. R. A Saccharomyces cerevisiae genomic plasmid bank based on a centromere-containing shuttle vector. Gene. 1987;60(2-3):237–243. doi: 10.1016/0378-1119(87)90232-0. [DOI] [PubMed] [Google Scholar]
  17. Schatz P. J., Solomon F., Botstein D. Genetically essential and nonessential alpha-tubulin genes specify functionally interchangeable proteins. Mol Cell Biol. 1986 Nov;6(11):3722–3733. doi: 10.1128/mcb.6.11.3722. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Scherer S., Davis R. W. Replacement of chromosome segments with altered DNA sequences constructed in vitro. Proc Natl Acad Sci U S A. 1979 Oct;76(10):4951–4955. doi: 10.1073/pnas.76.10.4951. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Shortle D., Haber J. E., Botstein D. Lethal disruption of the yeast actin gene by integrative DNA transformation. Science. 1982 Jul 23;217(4557):371–373. doi: 10.1126/science.7046050. [DOI] [PubMed] [Google Scholar]
  20. Shortle D., Novick P., Botstein D. Construction and genetic characterization of temperature-sensitive mutant alleles of the yeast actin gene. Proc Natl Acad Sci U S A. 1984 Aug;81(15):4889–4893. doi: 10.1073/pnas.81.15.4889. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Simchen G., Piñon R., Salts Y. Sporulation in Saccharomyces cerevisiae: premeiotic DNA synthesis, readiness and commitment. Exp Cell Res. 1972 Nov;75(1):207–218. doi: 10.1016/0014-4827(72)90538-1. [DOI] [PubMed] [Google Scholar]
  22. Sturtevant A H. A Highly Specific Complementary Lethal System in Drosophila Melanogaster. Genetics. 1956 Jan;41(1):118–123. doi: 10.1093/genetics/41.1.118. [DOI] [PMC free article] [PubMed] [Google Scholar]