منابع مشابه
Regulatory RNAs in Haloferax volcanii.
In organisms of all three domains of life, a plethora of sRNAs (small regulatory RNAs) exists in addition to the well-known RNAs such as rRNAs, tRNAs and mRNAs. Although sRNAs have been well studied in eukaryotes and in bacteria, the sRNA population in archaea has just recently been identified and only in a few archaeal species. In the present paper, we summarize our current knowledge about sRN...
متن کاملDihydroxyacetone metabolism in Haloferax volcanii
Dihydroxyacetone (DHA) is a ketose sugar that can be produced by oxidizing glycerol. DHA in the environment is taken up and phosphorylated to DHA-phosphate by glycerol kinase or DHA kinase. In hypersaline environments, it is hypothesized that DHA is produced as an overflow product from glycerol utilization by organisms such as Salinibacter ruber. Previous research has demonstrated that the halo...
متن کاملExtracellular DNA metabolism in Haloferax volcanii
Extracellular DNA is found in all environments and is a dynamic component of the microbial ecosystem. Microbial cells produce and interact with extracellular DNA through many endogenous mechanisms. Extracellular DNA is processed and internalized for use as genetic information and as a major source of macronutrients, and plays several key roles within prokaryotic biofilms. Hypersaline sites cont...
متن کاملHigh throughput sequencing reveals a plethora of small RNAs including tRNA derived fragments in Haloferax volcanii
To define the complete sRNA population of the halophilic archaeon Haloferax volcanii, we employed high throughput sequencing. cDNAs were generated from RNA ranging in size from 17 to 500 nucleotides isolated from cells grown at three different conditions to exponential and stationary phase, respectively. Altogether, 145 intergenic and 45 antisense sRNAs were identified. Comparison of the expres...
متن کاملtRNA-Derived Fragments Target the Ribosome and Function as Regulatory Non-Coding RNA in Haloferax volcanii
Nonprotein coding RNA (ncRNA) molecules have been recognized recently as major contributors to regulatory networks in controlling gene expression in a highly efficient manner. These RNAs either originate from their individual transcription units or are processing products from longer precursor RNAs. For example, tRNA-derived fragments (tRFs) have been identified in all domains of life and repre...
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ژورنال
عنوان ژورنال: Biochimie
سال: 2012
ISSN: 0300-9084
DOI: 10.1016/j.biochi.2011.12.002