Protein enhancement of hammerhead ribozyme catalysis.
Protein enhancement of hammerhead ribozyme catalysis.
复制标题
锤头核酶催化的蛋白质增强。
DOI:
10.1126/science.7692597
复制
发表时间:
1993
期刊:
影响因子:
56.9
通讯作者:
D. Herschlag
中科院分区:
文献类型:
--
作者:
Z. Tsuchihashi;M. Khosla;D. Herschlag
When the recognition sequence of a ribozyme is extended beyond a certain length, turnover is slowed and specificity is decreased. Here, it is shown that a protein can help a ribozyme overcome these general limitations on ribozyme activity. Cleavage of an RNA oligonucleotide by a hammerhead ribozyme is enhanced 10- to 20-fold upon addition of a protein derived from the p7 nucleocapsid (NC) protein of human immunodeficiency virus-type 1. The NC protein also enhances the ability of the ribozyme to discriminate between cleavage of RNA oligonucleotides with differing sequences. These catalytic improvements can be attributed to the strand exchange activity of this RNA binding protein. It is conceivable that endogenous or added proteins may provide analogous increases in ribozyme activity and specificity in vivo.
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DOI:
10.1126/science.3122322
发表时间:
1988
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Reich,C;Olsen,GJ;Pace,B;Pace,NR
通讯作者:
Pace,NR
影响因子:
2.9
作者:
FEDOR, MJ;UHLENBECK, OC
通讯作者:
UHLENBECK, OC
影响因子:
2.9
作者:
Perrotta,AT;Been,MD
通讯作者:
Been,MD
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Khan,R;Giedroc,DP
通讯作者:
Giedroc,DP
影响因子:
2.9
作者:
HERSCHLAG, D;CECH, TR
通讯作者:
CECH, TR