Translation termination in pyrrolysine-utilizing archaea.
Translation termination in pyrrolysine-utilizing archaea.
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DOI:
10.1016/j.febslet.2009.09.044
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发表时间:
2009-11-03
期刊:
影响因子:
3.5
通讯作者:
Kisselev L
中科院分区:
文献类型:
--
作者:
Alkalaeva E;Eliseev B;Ambrogelly A;Vlasov P;Kondrashov FA;Gundllapalli S;Frolova L;Söll D;Kisselev L
Although some data link archaeal and eukaryotic translation, the overall mechanism of protein synthesis in archaea remains largely obscure. Both archaeal (aRF1) and eukaryotic (eRF1) single release factors recognize all three stop codons. The archaeal genus Methanosarcinaceae contains two aRF1 homologs, and also uses the UAG stop to encode the 22nd amino acid, pyrrolysine. Here we provide an analysis of the last stage of archaeal translation in pyrrolysine-utilizing species. We demonstrated that only one of two Methanosarcina barkeri aRF1 homologs possesses activity and recognizes all three stop codons. The second aRF1 homolog may have another unknown function. The mechanism of pyrrolysine incorporation in the Methanosarcinaceae is discussed.
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影响因子:
3.2
作者:
Ambrogelly, A;Korencic, D;Ibba, M
通讯作者:
Ibba, M
影响因子:
64.5
作者:
Alkalaeva, Elena Z.;Pisarev, Andrey V.;Pestova, Tatyana V.
通讯作者:
Pestova, Tatyana V.
影响因子:
4.5
作者:
Bertram, G;Bell, HA;Stansfield, I
通讯作者:
Stansfield, I
DOI:
10.1073/pnas.0703887104
发表时间:
2007-06-26
影响因子:
11.1
作者:
Lekomtsev, Sergey;Kolosov, Petr;Kisselev, Lev
通讯作者:
Kisselev, Lev
影响因子:
7.7
作者:
Kervestin, S;Frolova, L;Jean-Jean, O
通讯作者:
Jean-Jean, O