INMAP, a novel truncated version of POLR3B, represses AP-1 and p53 transcriptional activity
INMAP, a novel truncated version of POLR3B, represses AP-1 and p53 transcriptional activity
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INMAP 是 POLR3B 的新型截短版本,可抑制 AP-1 和 p53 转录活性
DOI:
10.1007/s11010-012-1507-4
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发表时间:
2013-02
影响因子:
4.3
通讯作者:
Qianjin Liang
中科院分区:
文献类型:
--
作者:
Yunlei Zhou;Zhe Chen;Yan Lei;Pengcheng Wang;Yanbo Zheng;Le Sun;Qianjin Liang
INMAP was first identified as an interphase nucleus and mitotic apparatus-associated protein that plays essential roles in the formation of the spindle and cell-cycle progression. Here, we report that INMAP might be conserved from prokaryotes to humans, is a truncated version of the RNA polymerase III subunit B POLR3B, and is up-regulated in several human cancer cell lines including HeLa, Bel-7402, HepG2 and BGC-823. Deletion analysis revealed that the 209–290 amino-acid region is necessary for the punctate distribution of INMAP in the nucleus. Furthermore, over-expression of INMAP inhibited the transcriptional activities of p53 and AP-1 in a dose-dependent manner. These results suggest that INMAP may function through the p53 and AP-1 pathways, thus providing a possible link of its activity with tumourigenesis. Integrating our data and those in previous studies, it can be concluded that INMAP plays dual functional roles in the coordination of mitotic kinetics with gene expression as well as in cell-fate determination and proliferation.
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影响因子:
10.5
作者:
Schreiber, M;Kolbus, A;Wagner, EF
通讯作者:
Wagner, EF
影响因子:
56.9
作者:
Silvia Tornaletti;Gerd P. Pfeifer
通讯作者:
Silvia Tornaletti;Gerd P. Pfeifer
DOI:
--
发表时间:
2006
期刊:
--
影响因子:
--
作者:
F. Leach;T. Tokino;P. Meltzer;M. Burrell;J. Oliner;Sharon Smith;D. Hill;D. Sidransky;K. Kinzler;B. Vogelstein
通讯作者:
F. Leach;T. Tokino;P. Meltzer;M. Burrell;J. Oliner;Sharon Smith;D. Hill;D. Sidransky;K. Kinzler;B. Vogelstein
影响因子:
29.4
作者:
HAMELIN, R;LAURENTPUIG, P;THOMAS, G
通讯作者:
THOMAS, G
影响因子:
4.3
作者:
Goloudina, Anastasia R.;Mazur, Sharlyn J.;Demidov, Oleg N.
通讯作者:
Demidov, Oleg N.