Bioscience, Biotechnology, and Biochemistry
Online ISSN : 1347-6947
Print ISSN : 0916-8451
Biochemistry & Molecular Biology Communications
Functional Conservation between Fission Yeast moc1/sds23 and Its Two Orthologs, Budding Yeast SDS23 and SDS24, and Phenotypic Differences in Their Disruptants
Md. Muniruzzaman GOLDARToshikazu NISHIEYasue ISHIKURAToshifumi FUKUDAKaoru TAKEGAWAMakoto KAWAMUKAI
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2005 Volume 69 Issue 7 Pages 1422-1426

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Abstract

The moc1/sds23 gene was isolated to induce sexual development of a sterile strain due to overexpression of adenylate cyclase in Schizosaccharomyces pombe. Here, we studied the functional conservation between moc1/sds23 and its two orthologs SDS23 and SDS24 in Saccharomyces cerevisiae. We observed that the temperature sensitivity, salt tolerance, cell morphology, and sterility of the Δmoc1 mutant in S. pombe were recovered by expressing either S. cerevisiae SDS23 or SDS24. We found that deletion of both SDS23 and SDS24 resulted in the production of a large vacuole that was reversed by the expression of S. pombe moc1/sds23. In these ways we found that S. pombe Moc1/Sds23 and S. cerevisiae SDS23p or SDS24p are functional homologs. In addition we found that the Δsds23 Δsds24 diploid strain reduces cell separation in forming pseudohyphal-like growth in S. cerevisiae. Thus S. pombe moc1/sds23 and S. cerevisiae SDS23 or SDS24 are interchangeable with each other, but their disruptants are phenotypically dissimilar.

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© 2005 by Japan Society for Bioscience, Biotechnology, and Agrochemistry
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