Identification of the glycosyl transferase required for synthesis of the principal glycolipid characteristic of heterocysts of Anabaena sp strain PCC 7120

被引：29

作者：

Awai, Koichiro

Wolk, C. Peter ^{[1
]}

机构：

[1] Michigan State Univ, US DOE, Plant Res Lab, E Lansing, MI 48824 USA

[2] Michigan State Univ, Dept Plant Biol, E Lansing, MI 48824 USA

[3] Michigan State Univ, Dept Biochem & Mol Biol, E Lansing, MI 48824 USA

来源：

FEMS MICROBIOLOGY LETTERS | 2007年 / 266卷 / 01期

关键词：

heterocyst; glycosyl transferase; heterocyst envelope glycolipid;

D O I：

10.1111/j.1574-6968.2006.00512.x

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Nitrogenase is oxygen-labile. Cyanobacterial heterocysts can fix N-2 in an oxic milieu because their interior is micro-oxic, for which the glycolipid layer of the heterocyst envelope is required. ORF all5341 of the Anabaena sp. genome predicts a glycosyl transferase. An insertional mutant of all5341 synthesized only a nonglycosylated form of heterocyst envelope glycolipid, and lacked a glycolipid layer. All5341 appears to be the transferase required to glycosylate the glycolipid aglycone.

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收藏

页码：98 / 102

页数：5

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