Indirect tRNA aminoacylation during accurate translation and phenotypic mistranslation.
[No authors listed]
摘要
The fact that most bacteria do not contain a full set of aminoacyl-tRNA synthetases (aaRS) is often underappreciated. In the absence of asparaginyl-tRNA and/or glutaminyl-tRNA synthetase (AsnRS and GlnRS), Asn-tRNAAsn and/or Gln-tRNAGln are produced by an indirect tRNA aminoacylation pathway that relies on misacylation of these two tRNAs by two different misacylating aaRSs, followed by transamidation by an amidotransferase (GatCAB in bacteria). This review highlights the central importance of indirect tRNA aminoacylation to accurate protein translation, mechanistic peculiarities that appear to be unique to this system, and the newly recognized connection between indirect tRNA aminoacylation and mistranslation as a strategy used by bacteria to respond to environmental stressors like antibiotics.
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基因功能
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原始数据
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文献解读
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