Ancient Ciphers: Translation in Archaea
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چکیده
منابع مشابه
Ancient Ciphers: Translation in Archaea
All operons share the common feature of long inverted repeats surrounding both the 16S and 23S rRNA genes. Department of Biochemistry and Molecular Biology In bacteria, these repeats form helical structures within the primary transcript that are recognized and cleaved and Canadian Institute for Advanced Research Program in Evolutionary Biology by the duplex-specific endonuclease, RNaseIII. Alth...
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Methanogenic archaea lack cysteinyl-tRNA synthetase; they synthesize Cys-tRNA and cysteine in a tRNA-dependent manner. Two enzymes are required: Phosphoseryl-tRNA synthetase (SepRS) forms phosphoseryl-tRNA(Cys) (Sep-tRNA(Cys)), which is converted to Cys-tRNA(Cys) by Sep-tRNA:Cys-tRNA synthase (SepCysS). This represents the ancestral pathway of Cys biosynthesis and coding in archaea. Here we rep...
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LETTERS Transcription and Translation are Coupled in Archaea
The presence or absence of a nuclear membrane has historically been used as a taxonomic feature to divide all life into 2 groups, eukaryotes or prokaryotes, respectively. However, there is now very substantial molecular support for 3 primary phylogenetic domains (Woese 2000), and the classical definition of a prokaryote applies to both Bacteria and Archaea. Given that Bacteria and Archaea do no...
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ژورنال
عنوان ژورنال: Cell
سال: 1997
ISSN: 0092-8674
DOI: 10.1016/s0092-8674(00)80288-3