Biosynthesis of open-chain tetrapyrroles in Prochlorococcus marinus

被引：14

作者：

Dammeyer, Thorben ^{[1
]}

Michaelsen, Kristin ^{[1
]}

Frankenberg-Dinkel, Nicole ^{[1
]}

机构：

[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Microbiol, Braunschweig, Germany

来源：

FEMS MICROBIOLOGY LETTERS | 2007年 / 271卷 / 02期

关键词：

bilin; bilin reductase; linear tetrapyrrole; marine phytoplankton; Prochlorococcus; phycoerythrin;

D O I：

10.1111/j.1574-6968.2007.00715.x

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Members of the genus Prochlorococcus belong to the most abundant phytoplankton on earth. In contrast to other cyanobacteria, Prochlorococcus is characterized by divinyl-chlorophyll containing light-harvesting complexes and the lack of phycobilisomes. Despite the lack of phycobilisomes, all sequenced genomes of Prochlorococcus possess genes that putatively encode enzymes involved in the biosynthesis of open-chain tetrapyrrole molecules. Here, biochemical evidence is presented indicating that high-light- and low-light-adapted Prochlorococcus ecotypes possess genes encoding functional enzymes for the biosynthesis of open-chain tetrapyrrole molecules. Experiments on recombinant protein as well as through complementation studies of a cyanobacterial insertion mutant revealed the functionality of the bilin reductases investigated.

引用

页码：251 / 257

页数：7

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