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B6db references: 20681987

type Journal Article
authors Ruiz M, Bettache A, Janicki A, Vinella D, Zhang CC, Latifi A.
title The alr2505 (osiS) gene from Anabaena sp. strain PCC7120 encodes a cysteine desulfurase induced by oxidative stress
journal FEBS J
sel selected
ui 20681987
year (2010)
volume 277
number 18
pages 3715-25
abstract NifS-like cysteine desulfurases are widespread enzymes involved in the mobilization of sulfur from cysteine. The genome of the filamentous diazotrophic cyanobacterium Anabaena PCC 7120 contains four open reading frames potentially encoding NifS-like proteins. One of them, alr2505, belongs to the pkn22 operon, which enables Anabaena to cope with oxidative stress. The Alr2505 protein was purified and found to share all the features characteristic of cysteine desufurases. This is the first NifS-like enzyme to be functionally characterized in this bacterium. On the basis of the transcriptional profiling of all nifS-like genes in Anabaena, it is concluded that alr2505 is the only cysteine desulfurase-encoding gene induced by oxidative stress. The function of Alr2505, which was termed OsiS, is discussed.
last changed 2020/05/08 03:09

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