Second Acyl Homoserine Lactone Production System in the Extreme Acidophile Acidithiobacillus ferrooxidans
نویسندگان
چکیده
منابع مشابه
A Lux-like quorum sensing system in the extreme acidophile Acidithiobacillus ferrooxidans.
The genome of the acidophilic, proteobacterium Acidithiobacillusferrooxidans, contains linked but divergently oriented genes, termed afel and afeR, whose predicted protein products are significantly similar to the LuxI and LuxR families of proteins. A possible promoter and Lux box are predicted upstream of afel. A cloned copy of afel, expressed in E. coli, encodes an enzyme that catalyzes the p...
متن کاملThe ferric iron uptake regulator (Fur) from the extreme acidophile Acidithiobacillus ferrooxidans.
Acidithiobacillus ferrooxidans is a Gram-negative bacterium that lives at pH 2 in high concentrations of soluble ferrous and ferric iron, making it an interesting model for understanding the biological mechanisms of bacterial iron uptake and homeostasis in extremely acid conditions. A candidate fur(AF) (Ferric Uptake Regulator) gene was identified in the A. ferrooxidans ATCC 23270 genome. Fur(A...
متن کاملBioinformatic prediction and experimental verification of Fur-regulated genes in the extreme acidophile Acidithiobacillus ferrooxidans
The gamma-proteobacterium Acidithiobacillus ferrooxidans lives in extremely acidic conditions (pH 2) and, unlike most organisms, is confronted with an abundant supply of soluble iron. It is also unusual in that it oxidizes iron as an energy source. Consequently, it faces the challenging dual problems of (i) maintaining intracellular iron homeostasis when confronted with extremely high environme...
متن کاملα-fur, an antisense RNA gene to fur in the extreme acidophile Acidithiobacillus ferrooxidans.
A large non-coding RNA, termed α-Fur, of ~1000 nt has been detected in the extreme acidophile Acidithiobacillus ferrooxidans encoded on the antisense strand to the iron-responsive master regulator fur (ferric uptake regulator) gene. A promoter for α-fur was predicted bioinformatically and validated using gene fusion experiments. The promoter is situated within the coding region and in the same ...
متن کاملSulfur Metabolism in the Extreme Acidophile Acidithiobacillus Caldus
Given the challenges to life at low pH, an analysis of inorganic sulfur compound (ISC) oxidation was initiated in the chemolithoautotrophic extremophile Acidithiobacillus caldus. A. caldus is able to metabolize elemental sulfur and a broad range of ISCs. It has been implicated in the production of environmentally damaging acidic solutions as well as participating in industrial bioleaching opera...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2007
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.02948-06