2-Selenouridine triphosphate synthesis and Se-RNA transcription.
2-Selenouridine triphosphate synthesis and Se-RNA transcription.
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DOI:
10.1261/rna.038075.112
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发表时间:
2013-09
期刊:
影响因子:
--
通讯作者:
Huang Z
中科院分区:
文献类型:
--
作者:
Sun H;Jiang S;Caton-Williams J;Liu H;Huang Z
The enzymatic synthesis of 2-selenouridine via 2-selenouridine triphosphate (SeUTP) synthesis and RNA transcription is reported. SeUTP is shown to be stable and recognizable by T7 RNA polymerase. 2-Selenouridine (SeU) is one of the naturally occurring modifications of Se-tRNAs (SeU-RNA) at the wobble position of the anticodon loop. Its role in the RNA-RNA interaction, especially during the mRNA decoding, is elusive. To assist the research exploration, herein we report the enzymatic synthesis of the SeU-RNA via 2-selenouridine triphosphate (SeUTP) synthesis and RNA transcription. Moreover, we have demonstrated that the synthesized SeUTP is stable and recognizable by T7 RNA polymerase. Under the optimized conditions, the transcription yield of SeU-RNA can reach up to 85% of the corresponding native RNA. Furthermore, the transcribed SeU-hammerhead ribozyme has the similar activity as the corresponding native, which suggests usefulness of SeU-RNAs in function and structure studies of noncoding RNAs, including the Se-tRNAs.
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