English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A cysteine-rich metal binding protein MT (metallothionein) gene (bmtA) and a CPx-ATPase metal transporter gene (bxa1) are induced upon exposure to multiple heavy metal ions in the cyanobacterium Oscillatoria brevis. The SmtB/ArsR family repressor BxmR from O. brevis represses the expression of an operon encoding bmtA and bxmR, and another operon encoding bxa1. In the present study, the expression of bmtA and bxa1 was induced in vivo by 5-15 μM gold (Au) treatment for 1-4 h with a different level in O. brevis cells. In vitro electrophoretic gel mobility shift analysis (EMSA) revealed that the Au treatment promotes a disassembly of BxmR protein from the BxmR-bxmR/bmtA operator (O)/promoter (P) or BxmR-bxa1 O/P complex with a different affinity. Our results indicate that Au treatment can cause a release of BxmR protein in gene-expression level of these genes in O.brevis.

Gold Induces a Metallothionein Gene and a CPx－ATPase Gene Through Regulation of a Repressor BxmR in <i>Oscillatoria brevis</i>