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arsenate reductase
Overview
Sequencing and expression of two arsenic resistance operons with different functions in the highly arsenic-resistant strain Ochrobactrum tritici SCII24T.
The study identifies two arsenic resistance operons, ars1 and ars2, in Ochrobactrum tritici SCII24T, which confer resistance to arsenite, antimonite, and arsenate. The genes within these operons were cloned and functionally validated in E. coli.
Identification of Resistance Genes and Response to Arsenic in Rhodococcus aetherivorans BCP1.
The study identifies three arsenate reductase genes (arsC1, arsC2, arsC3) and other ars genes involved in arsenic resistance in Rhodococcus aetherivorans BCP1. These genes are transcriptionally induced in response to arsenate and play a role in the detoxification of inorganic and organic arsenic compounds.
A reduction-secretion system contributes to roxarsone (V) degradation and efflux in Brevundimonas sp. M20.
Three genes, BsNtrA, arsC2, and BsExpA, were identified in Brevundimonas sp. M20, contributing to Rox(V) degradation and efflux. BsNtrA and arsC2 confer resistance to Rox(V) and HAPA(V), while BsExpA is involved in HAPA(III) efflux.
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