Suppr超能文献

酿酒酵母糖化酵母编码甘油-3-磷酸脱氢酶的DAR1基因的克隆、测序及破坏。

Cloning, sequence, and disruption of the Saccharomyces diastaticus DAR1 gene encoding a glycerol-3-phosphate dehydrogenase.

作者信息

Wang H T, Rahaim P, Robbins P, Yocum R R

机构信息

OmniGene, Inc., Cambridge, Massachusetts 02139-9002.

出版信息

J Bacteriol. 1994 Nov;176(22):7091-5. doi: 10.1128/jb.176.22.7091-7095.1994.

Abstract

The Saccharomyces diastaticus DAR1 gene was cloned by complementation in an Escherichia coli strain auxogrophic for glycerol-3-phosphate. DAR1 encodes an NADH-dependent dihydroxyacetone phosphate reductase (sn-glycerol-3-phosphate dehydrogenase [G3PDase; EC 1.1.1.8]) homologous to several other eukaryotic G3PDases. DAR1 is distinct from GUT2, which encodes a glucose-repressed mitochondrial G3PDase, but is identical to GPD1 from S. cerevisiae, a close relative of S. diastaticus. The level of DAR1-encoded G3PDase was increased about threefold in a medium of high osmolarity. Disruption of DAR1 in a haploid S. cerevisiae was not lethal but led to a decrease in cytoplasmic NADH-dependent G3PDase activity, an increase in osmotic sensitivity, and a 25% reduction in glycerol secretion from cells grown anaerobically on glucose.

摘要

通过在一株对3-磷酸甘油营养缺陷的大肠杆菌菌株中进行互补,克隆出了糖化酵母(Saccharomyces diastaticus)的DAR1基因。DAR1编码一种依赖NADH的磷酸二羟丙酮还原酶(sn-甘油-3-磷酸脱氢酶[G3PDase;EC 1.1.1.8]),与其他几种真核生物G3PDase同源。DAR1与GUT2不同,GUT2编码一种受葡萄糖抑制的线粒体G3PDase,但与糖化酵母的近亲酿酒酵母(S. cerevisiae)的GPD1相同。在高渗透压培养基中,DAR1编码的G3PDase水平增加了约三倍。单倍体酿酒酵母中DAR1的破坏并不致命,但导致细胞质中依赖NADH的G3PDase活性降低、渗透压敏感性增加,以及在葡萄糖上厌氧生长的细胞甘油分泌减少25%。

相似文献

引用本文的文献

1
NAD Metabolism and Regulation: Lessons From Yeast.NAD 代谢与调控:酵母的启示。
Biomolecules. 2020 Feb 19;10(2):330. doi: 10.3390/biom10020330.

本文引用的文献

7
8
Purification and some properties of sn-glycerol-3-phosphate dehydrogenase from Saccharomyces cerevisiae.
Anal Biochem. 1982 May 1;122(1):180-5. doi: 10.1016/0003-2697(82)90268-8.
10
Yeast growth and glycerol formation.酵母生长与甘油形成。
Acta Chem Scand. 1966;20(4):1016-25. doi: 10.3891/acta.chem.scand.20-1016.

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验