An RNA-dependent RNA polymerase formed by TERT and the RMRP RNA.

An RNA-dependent RNA polymerase formed by TERT and the RMRP RNA.
复制标题

DOI:
10.1038/nature08283
复制
发表时间:
2009-09-10
期刊:
影响因子:
64.8
通讯作者:
--
中科院分区:
综合性期刊1区
文献类型:
--
作者:

文献摘要

参考文献

被引文献

相似文献

人类细胞中端粒酶的组成型表达通过维持端粒稳态来防止衰老和危机的发生。然而,越来越多的证据表明,人端粒酶催化亚基 (hTERT) 对细胞生理学的贡献与其延长端粒的能力无关。在这里,我们发现 hTERT 与线粒体 RNA 加工核糖核酸内切酶 (RMRP) 的 RNA 成分相互作用,RMRP 是一种在遗传性多效性综合征软骨毛发发育不全中发生突变的基因。 hTERT 和 RMRP 形成一种独特的核糖核蛋白复合物,具有 RNA 依赖性 RNA 聚合酶 (RdRP) 活性,并产生双链 RNA,该双链 RNA 可以以 Dicer 依赖性方式加工成小干扰 RNA。这些观察结果鉴定出由 hTERT 与 RMRP 复合物组成的哺乳动物 RdRP。
Constitutive expression of telomerase in human cells prevents the onset of senescence and crisis by maintaining telomere homeostasis. However, accumulating evidence suggests that the human telomerase catalytic subunit (hTERT) contributes to cell physiology independent of its ability to elongate telomeres. Here we show that hTERT interacts with the RNA component of mitochondrial RNA processing endoribonuclease (RMRP), a gene that is mutated in the inherited pleiotropic syndrome Cartilage-Hair Hypoplasia. hTERT and RMRP form a distinct ribonucleoprotein complex that exhibits RNA dependent RNA polymerase (RdRP) activity and produces double-stranded RNAs that can be processed into small interfering RNA in a Dicer-dependent manner. These observations identify a mammalian RdRP composed of hTERT in complex with RMRP.
DOI: 10.1016/s0092-8674(03)00550-6
发表时间: 2003-07-25
期刊: CELL
影响因子: 64.5
作者:
Masutomi, K;Yu, EY;Hahn, WC
通讯作者: Hahn, WC
DOI: 10.1101/gad.1705308
发表时间: 2008-10-15
影响因子: 10.5
作者:
Babiarz, Joshua E.;Ruby, J. Graham;Blelloch, Robert
通讯作者: Blelloch, Robert
DOI: 10.1038/sj.bmt.1705520
发表时间: 2006-12-01
影响因子: 4.8
作者:
Guggenheim, R.;Somech, R.;Roifman, C. M.
通讯作者: Roifman, C. M.
DOI: 10.1073/pnas.0502252102
发表时间: 2005-07-12
影响因子: 11.1
作者:
Lue, NF;Bosoy, D;Leng, SY
通讯作者: Leng, SY
DOI: 10.1371/journal.pgen.0040010
发表时间: 2008-01
期刊: PLoS genetics
影响因子: 4.5
作者:
Choi J;Southworth LK;Sarin KY;Venteicher AS;Ma W;Chang W;Cheung P;Jun S;Artandi MK;Shah N;Kim SK;Artandi SE
通讯作者: Artandi SE