The Schizosaccharomyces pombe cho1+ gene encodes a phospholipid methyltransferase.

The Schizosaccharomyces pombe cho1+ gene encodes a phospholipid methyltransferase.
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粟酒裂殖酵母 cho1 基因编码磷脂甲基转移酶。

DOI:
10.1093/genetics/150.2.553
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发表时间:
1998
期刊:
影响因子:
3.3
通讯作者:
Henry,SA
Henry,SA
中科院分区:
生物学2区
文献类型:
--
作者:
Kanipes,MI;Hill,JE;Henry,SA

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报道了通过磷脂酰乙醇胺甲基化合成磷脂酰胆碱的缺陷裂殖酵母突变株的分离。这些突变体是胆碱营养缺陷体,属于两个互不相连的互补组,cho1和cho2。我们还报道了克隆和鉴定的第一个编码人磷脂生物合成酶的结构基因cho1+基因的分析。ChO1+基因中断突变体(CHA1Δ)在提供胆碱的情况下是可行的,并且与诱变后分离到的CHA1突变体相似。序列分析表明,该基因编码一种与酿酒酵母和大鼠磷脂甲基转移酶密切相关的蛋白质。由大鼠肝脏c DNA和酿酒酵母OPI3基因编码的磷脂甲基转移酶均能补充pombe cho1突变株的胆碱营养缺陷症。这些结果表明,磷脂N-甲基转移酶的结构和功能在真核生物中都是广泛保守的。
The isolation of mutants of Schizosaccharomyces pombe defective in the synthesis of phosphatidylcholine via the methylation of phosphatidylethanolamine is reported. These mutants are choline auxotrophs and fall into two unlinked complementation groups, cho1 and cho2. We also report the analysis of the cho1+gene, the first structural gene encoding a phospholipid biosynthetic enzyme from S. pombe to be cloned and characterized. The cho1+gene disruption mutant (cho1Δ) is viable if choline is supplied and resembles the cho1 mutants isolated after mutagenesis. Sequence analysis of the cho1+gene indicates that it encodes a protein closely related to phospholipid methyltransferases from Saccharomyces cerevisiae and rat. Phospholipid methyltransferases encoded by a rat liver cDNA and the S. cerevisiae OPI3 gene are both able to complement the choline auxotrophy of the S. pombe cho1 mutants. These results suggest that both the structure and function of the phospholipid N-methyltransferases are broadly conserved among eukaryotic organisms.
DOI: --
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影响因子: 4.8
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影响因子: --
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