TPP1 as a versatile player at the ends of chromosomes
TPP1 as a versatile player at the ends of chromosomes
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TPP1 作为染色体末端的多才多艺的参与者
DOI:
10.1007/s11515-014-1307-1
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发表时间:
2014-06
期刊:
影响因子:
--
通讯作者:
Junjiu Huang
中科院分区:
文献类型:
--
作者:
Sijie Zhang;Zhenhua Luo;Guang Shi;Dan Liu;Zhou Songyang;Junjiu Huang
Telomeres, the ends of linear eukaryotic chromosomes, are tandem DNA repeats and capped by various telomeric proteins. These nucleoprotein complexes protect telomeres from DNA damage response (DDR), recombination, and end-to-end fusions, ensuring genome stability. The human telosome/shelterin complex is one of the best-studied telomere-associated protein complexes, made up of six core telomeric proteins TRF1, TRF2, TIN2, RAP1, POT1, and TPP1. TPP1, also known as adrenocortical dysplasia protein homolog (ACD), is a putative mammalian homolog of TEBP-β and belongs to the oligonucleotide binding (OB)-fold-containing protein family. Three functional domains have been identified within TPP1, the N-terminal OB fold, the POT1 binding recruitment domain (RD), and the carboxyl-terminal TIN2-interacting domain (TID). TPP1 can interact with both POT1 and TIN2 to maintain telomere structure, and mediate telomerase recruitment for telomere elongation. These features have indicated TPP1 play an essential role in telomere maintenance. Here, we will review important findings that highlight the functional significance of TPP1, with a focus on its interaction with other telosome components and the telomerase. We will also discuss potential implications in disease therapies.
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影响因子:
7
作者:
Lee, Ok-Hee;Kim, Hyeung;Zhou Songyang
通讯作者:
Zhou Songyang
影响因子:
64.5
作者:
Zhao Y;Sfeir AJ;Zou Y;Buseman CM;Chow TT;Shay JW;Wright WE
通讯作者:
Wright WE
影响因子:
64.8
作者:
通讯作者:
--
DOI:
10.1038/nrg3246
发表时间:
2012-10
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
--
影响因子:
64.8
作者:
Chen, Liuh-Yow;Redon, Sophie;Lingner, Joachim
通讯作者:
Lingner, Joachim