Codon reassignment in the Escherichia coli genetic code.
Codon reassignment in the Escherichia coli genetic code.
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DOI:
10.1093/nar/gkq707
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发表时间:
2010-12
影响因子:
14.9
通讯作者:
Sakamoto K
中科院分区:
文献类型:
--
作者:
Mukai T;Hayashi A;Iraha F;Sato A;Ohtake K;Yokoyama S;Sakamoto K
Most organisms, from Escherichia coli to humans, use the ‘universal’ genetic code, which have been unchanged or ‘frozen’ for billions of years. It has been argued that codon reassignment causes mistranslation of genetic information, and must be lethal. In this study, we successfully reassigned the UAG triplet from a stop to a sense codon in the E. coli genome, by eliminating the UAG-recognizing release factor, an essential cellular component, from the bacterium. Only a few genetic modifications of E. coli were needed to circumvent the lethality of codon reassignment; erasing all UAG triplets from the genome was unnecessary. Thus, UAG was assigned unambiguously to a natural or non-natural amino acid, according to the specificity of the UAG-decoding tRNA. The result reveals the unexpected flexibility of the genetic code.
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影响因子:
3.5
作者:
Alkalaeva E;Eliseev B;Ambrogelly A;Vlasov P;Kondrashov FA;Gundllapalli S;Frolova L;Söll D;Kisselev L
通讯作者:
Kisselev L
影响因子:
5.6
作者:
CRICK, FHC
通讯作者:
CRICK, FHC
影响因子:
3.6
作者:
Li, Xia;Yokota, Teruaki;Aiba, Hiroji
通讯作者:
Aiba, Hiroji
DOI:
10.1073/pnas.48.7.1121
发表时间:
1962-01-01
影响因子:
11.1
作者:
GAREN, A;SIDDIQI, O
通讯作者:
SIDDIQI, O
影响因子:
46.9
作者:
Wang, Kaihang;Neumann, Heinz;Chin, Jason W.
通讯作者:
Chin, Jason W.