In Saccharomyces cerevisiae, the functions of two unlinked genes (LYS2 and LYS5) are required for the synthesis of the lysine biosynthetic enzyme, a-aminoadipate reductase. The LYS5 gene of S. cerevisiae was cloned by functional complementation of a lys5 mutant, X4004-3A, using a YEp24 plasmid libra
Cloning and mapping of theCYS4gene ofSaccharomyces cerevisiae
โ Scribed by Bun-ichiro Ono; Chinatsu Heike; Yukie Yano; Toyomi Inoue; Kazuhide Naito; Satoru Nakagami; Akio Yamane
- Publisher
- Springer-Verlag
- Year
- 1992
- Tongue
- English
- Weight
- 489 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0172-8083
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โฆ Synopsis
A D N A fragment containing the C YS4 gene of Saccharomyces cerevisiae was isolated from a genomic library. The cloned fragment hybridized to the transverse-alternating-field-electrophoresis band corresponding to chromosomes VII and XV. According to the 2 ~tm D N A chromosome-loss procedure, the cys2 and cys4 mutations, which are linked together and co-operatively confer cysteine dependence, were assigned to chromosome VIL By further mapping involving tetrad analysis, the cys2-cys4 pair was localized between SUP77 (SUP166) and ado3 on the right arm of chromosome VII.
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