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Arsenic resistance operon structure in Leptospirillum ferriphilum and proteomic response to arsenic stress.

Abstract：

:The response of Leptospirillum ferriphilum ML-04 to arsenic stress was analyzed using two-dimensional electrophoresis (2-DE), matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS). Thirty-eight of 65 significantly differentially expressed arsenic response proteins were identified, and 25 of them have known functions. Three proteins are arsenic resistance system (ARS) member proteins. Two ars operons appear to be present in this strain. In addition to the ARS system, phosphate regulation and glutathione (GSH) synthesis appear involved in As[V] and As[III] tolerance, respectively. These findings provide information potentially useful for the genetic engineering of arsenic resistant organisms.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Li B,Lin J,Mi S,Lin J

doi

10.1016/j.biortech.2010.07.043

subject

Has Abstract

pub_date

2010-12-01 00:00:00

pages

9811-4

issue

24

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(10)01233-2

journal_volume

101

pub_type

杂志文章

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