Conditional Expression of RNA Polymerase II in Mammalian Cells
Conditional Expression of RNA Polymerase II in Mammalian Cells
复制标题
RNA 聚合酶 II 在哺乳动物细胞中的条件表达
DOI:
--
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发表时间:
2000
影响因子:
4.8
通讯作者:
D. Eick
中科院分区:
文献类型:
--
作者:
M. Meininghaus;Rob D. Chapman;M. Horndasch;D. Eick
The carboxyl-terminal domain (CTD) of the large subunit of mammalian RNA polymerase II contains 52 repeats of a heptapeptide that is the target of a variety of kinases. The hyperphosphorylated CTD recruits important factors for mRNA capping, splicing, and 3′-processing. The role of the CTD for the transcription process in vivo, however, is not yet clear. We have conditionally expressed an α-amanitin-resistant large subunit with an almost entirely deleted CTD (LS*Δ5) in B-cells. These cells have a defect in global transcription of cellular genes in the presence of α-amanitin. Moreover, pol II harboring LS*Δ5 failed to transcribe up to the promoter-proximal pause sites in thehsp70A and c-fos gene promoters. The results indicate that the CTD is already required for steps that occur before promoter-proximal pausing and maturation of mRNA.
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影响因子:
10.5
作者:
KRUMM, A;MEULIA, T;GROUDINE, M
通讯作者:
GROUDINE, M
影响因子:
10.5
作者:
Wada, T;Takagi, T;Handa, H
通讯作者:
Handa, H
影响因子:
16
作者:
Misteli, T;Spector, DL
通讯作者:
Spector, DL
影响因子:
10.5
作者:
Hartzog, GA;Wada, T;Winston, F
通讯作者:
Winston, F
DOI:
--
发表时间:
1989
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Thompson,NE;Steinberg,TH;Aronson,DB;Burgess,RR
通讯作者:
Burgess,RR