Evidence for recycling of external guide sequences during cleavage of bipartite substrates in vitro by reconstituted archaeal RNase P.
Evidence for recycling of external guide sequences during cleavage of bipartite substrates in vitro by reconstituted archaeal RNase P.
复制标题
重组古菌 RNase P 体外切割二分底物过程中外部引导序列循环利用的证据。
DOI:
10.1016/j.jmb.2010.11.056
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发表时间:
2011
影响因子:
5.6
通讯作者:
Gopalan,Venkat
中科院分区:
文献类型:
--
作者:
Cho,I-Ming;Kazakov,SergeiA;Gopalan,Venkat
RNA-mediated RNA cleavage events are being increasingly exploited to disrupt RNA function, an important objective in post-genomic biology. RNase P, a ribonucleoprotein enzyme that catalyzes the removal of 5′-leaders from precursor tRNAs, has previously been utilized for sequence-specific cleavage of cellular RNAs. In one of these strategies, borne out in bacterial and mammalian cell culture, an external guide sequence (EGS) RNA base-paired to a target RNA makes the latter a substrate for endogenous RNase P by rendering the bipartite target RNA–EGS complex a precursor tRNA structural mimic. In this study, we first obtained evidence that four different mesophilic and thermophilic archaeal RNase P holoenzymes, reconstituted in vitro using their respective constituent RNA and protein subunits, recognize and cleave such substrate–EGS complexes. We further demonstrate that these EGSs engage in multiple rounds of substrate recognition while assisting archaeal RNase P-mediated cleavage of a target RNA in vitro. Taken together, the EGS-based approach merits consideration as a gene knockdown tool in archaea.
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DOI:
--
发表时间:
1969
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
C. B. Coleman;G. Matrone
通讯作者:
G. Matrone
DOI:
--
发表时间:
1982
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Chasteen,ND;Theil,EC
通讯作者:
Theil,EC
DOI:
--
发表时间:
1966
期刊:
Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan
影响因子:
--
作者:
Y. Nakanishi;K. Kurata;Y. Yoshimura;S. Ose
通讯作者:
S. Ose
DOI:
10.1073/pnas.70.12.3847
发表时间:
1973-01-01
影响因子:
11.1
作者:
MASSOVER, WH;COWLEY, JM
通讯作者:
COWLEY, JM
影响因子:
3.9
作者:
J. Rimbert;F. Dumas;C. Kellershohn;R. Girot;P. Brissot
通讯作者:
P. Brissot