SPT5 stabilization of promoter-proximal RNA polymerase II.
SPT5 stabilization of promoter-proximal RNA polymerase II.
复制标题
DOI:
10.1016/j.molcel.2021.08.006
复制
发表时间:
2021-11-04
期刊:
影响因子:
16
通讯作者:
Shilatifard A
中科院分区:
文献类型:
--
作者:
Aoi Y;Takahashi YH;Shah AP;Iwanaszko M;Rendleman EJ;Khan NH;Cho BK;Goo YA;Ganesan S;Kelleher NL;Shilatifard A
Based on in vitro studies, it has been demonstrated that the DSIF complex, comprised of SPT4 and SPT5, regulates the elongation stage of transcription catalyzed by RNA polymerase II (Pol II). The precise cellular function of SPT5 is not clear since conventional gene depletion strategies for SPT5 result in loss of cellular viability. Using an acute inducible protein depletion strategy to circumvent this issue, we report that SPT5 loss triggers the ubiquitination and proteasomal degradation of the core Pol II subunit RPB1, a process which we show to be evolutionarily conserved from yeast to human cells. RPB1 degradation requires the E3 ligase Cullin 3, the unfoldase VCP/p97 and a novel form of CDK9 kinase complex. Our study demonstrates that SPT5 stabilizes Pol II specifically at promoter-proximal regions, permitting Pol II release from promoters into gene bodies providing mechanistic insight into the cellular function of SPT5 in safeguarding accurate gene expression. Aoi et al find that the conserved transcription elongation factor SPT5 stabilizes RNA polymerase II (Pol II) in yeast and human cells. SPT5 loss triggers degradation of a Pol II subunit through CUL3, VCP, and CDK9. Stabilizing Pol II may be a SPT5’s primary function to safeguard accurate gene expression.
登录
查看更多内容
影响因子:
5.7
作者:
Baumli, Sonja;Hole, Alison J.;Wang, Lan-Zhen;Noble, Martin E. M.;Endicott, Jane A.
通讯作者:
Endicott, Jane A.
影响因子:
16
作者:
Anindya, Roy;Ayguen, Ozan;Svejstrup, Jesper Q.
通讯作者:
Svejstrup, Jesper Q.
DOI:
10.1073/pnas.1216880109
发表时间:
2012-12-04
影响因子:
11.1
作者:
Holland, Andrew J.;Fachinetti, Daniele;Cleveland, Don W.
通讯作者:
Cleveland, Don W.
影响因子:
14.8
作者:
Gregersen, Lea H.;Mitter, Richard;Svejstrup, Jesper Q.
通讯作者:
Svejstrup, Jesper Q.
影响因子:
16
作者:
Huang KL;Jee D;Stein CB;Elrod ND;Henriques T;Mascibroda LG;Baillat D;Russell WK;Adelman K;Wagner EJ
通讯作者:
Wagner EJ