Novel RNA base pair with higher specificity using single selenium atom.
Novel RNA base pair with higher specificity using single selenium atom.
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DOI:
10.1093/nar/gks010
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发表时间:
2012-06
影响因子:
14.9
通讯作者:
Huang Z
中科院分区:
文献类型:
--
作者:
Sun H;Sheng J;Hassan AE;Jiang S;Gan J;Huang Z
Specificity of nucleobase pairing provides essential foundation for genetic information storage, replication, transcription and translation in all living organisms. However, the wobble base pairs, where U in RNA (or T in DNA) pairs with G instead of A, might compromise the high specificity of the base pairing. The U/G wobble pairing is ubiquitous in RNA, especially in non-coding RNA. In order to increase U/A pairing specificity, we have hypothesized to discriminate against U/G wobble pair by tailoring the steric and electronic effects at the 2-exo position of uridine and replacing the 2-exo oxygen with a selenium atom. We report here the first synthesis of the 2-Se-U-RNAs as well as the 2-Se-uridine (SeU) phosphoramidite. Our biophysical and structural studies of the SeU-RNAs indicate that this single atom replacement can indeed create a novel U/A base pair with higher specificity than the natural one. We reveal that the SeU/A pair maintains a structure virtually identical to the native U/A base pair, while discriminating against U/G wobble pair. This oxygen replacement with selenium offers a unique chemical strategy to enhance the base pairing specificity at the atomic level.
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DOI:
10.1107/s0907444995011115
发表时间:
1996-01-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Parkinson, G;Vojtechovsky, J;Berman, HM
通讯作者:
Berman, HM
DOI:
10.1107/s0108767386099622
发表时间:
1986-05-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION A
影响因子:
--
作者:
READ, RJ
通讯作者:
READ, RJ
DOI:
10.1016/s0006-291x(88)81117-3
发表时间:
1988-08-30
影响因子:
3.1
作者:
SEETHARAM, R;HEEREN, RA;SIEGEL, NR
通讯作者:
SIEGEL, NR
影响因子:
15
作者:
Hassan, Abdalla E. A.;Sheng, Jia;Huang, Zhen
通讯作者:
Huang, Zhen
影响因子:
14.9
作者:
Jühling F;Mörl M;Hartmann RK;Sprinzl M;Stadler PF;Pütz J
通讯作者:
Pütz J