tRNA evolution from the proto-tRNA minihelix world
نویسندگان
چکیده
منابع مشابه
tRNA evolution from the proto-tRNA minihelix world
Multiple models have been advanced for the evolution of cloverleaf tRNA. Here, the conserved archaeal tRNA core (75-nt) is posited to have evolved from ligation of three proto-tRNA minihelices (31-nt) and two-symmetrical 9-nt deletions within joined acceptor stems (93 - 18 = 75-nt). The primary evidence for this conclusion is that the 5-nt stem 7-nt anticodon loop and the 5-nt stem 7-nt T loop ...
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Poly-tRNA theory have revealed that the tRNA gene-clusters in the Bacillus subtilis trrnD- and rrnB-operons are relics of early peptide-synthesizing RNA apparatus. The trrnD-type and rrnB-type poly-tRNA models were re-analyzed by using recent databases. The results elucidated that the 16 amino acid (aa)-trrnD- and the 21 aa-rrnB-peptides (whose aa sequences are in the order of aa specificities ...
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ژورنال
عنوان ژورنال: Transcription
سال: 2016
ISSN: 2154-1264,2154-1272
DOI: 10.1080/21541264.2016.1235527