FACT facilitates chromatin transcription by RNA polymerases I and III.
FACT facilitates chromatin transcription by RNA polymerases I and III.
复制标题
DOI:
10.1038/emboj.2009.33
复制
发表时间:
2009-04-08
期刊:
影响因子:
11.4
通讯作者:
Zomerdijk, Joost C. B. M.
中科院分区:
文献类型:
--
作者:
Birch, Joanna L.;Tan, Bertrand C-M;Panov, Kostya I.;Panova, Tatiana B.;Andersen, Jens S.;Owen-Hughes, Tom A.;Russell, Jackie;Lee, Sheng-Chung;Zomerdijk, Joost C. B. M.
Efficient transcription elongation from a chromatin template requires RNA polymerases (Pols) to negotiate nucleosomes. Our biochemical analyses demonstrate that RNA Pol I can transcribe through nucleosome templates and that this requires structural rearrangement of the nucleosomal core particle. The subunits of the histone chaperone FACT (facilitates chromatin transcription), SSRP1 and Spt16, co-purify and co-immunoprecipitate with mammalian Pol I complexes. In cells, SSRP1 is detectable at the rRNA gene repeats. Crucially, siRNA-mediated repression of FACT subunit expression in cells results in a significant reduction in 47S pre-rRNA levels, whereas synthesis of the first 40 nt of the rRNA is not affected, implying that FACT is important for Pol I transcription elongation through chromatin. FACT also associates with RNA Pol III complexes, is present at the chromatin of genes transcribed by Pol III and facilitates their transcription in cells. Our findings indicate that, beyond the established role in Pol II transcription, FACT has physiological functions in chromatin transcription by all three nuclear RNA Pols. Our data also imply that local chromatin dynamics influence transcription of the active rRNA genes by Pol I and of Pol III-transcribed genes.
登录
查看更多内容
影响因子:
5.6
作者:
Flaus, A;Richmond, TJ
通讯作者:
Richmond, TJ
DOI:
10.1083/jcb.153.7.1341
发表时间:
2001-06-25
期刊:
The Journal of cell biology
影响因子:
--
作者:
Kimura H;Cook PR
通讯作者:
Cook PR
DOI:
10.1073/pnas.89.6.2307
发表时间:
1992-03-15
影响因子:
11.1
作者:
BRUHN, SL;PIL, PM;LIPPARD, SJ
通讯作者:
LIPPARD, SJ
影响因子:
5.3
作者:
Arimbasseri, Aneeshkumar Gopalakrishnan;Bhargava, Purnima
通讯作者:
Bhargava, Purnima
影响因子:
4.8
作者:
Hannan, RD;Hempel, WM;Rothblum, L
通讯作者:
Rothblum, L