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The Rb-related p130 protein controls telomere lengthening through an interaction with a Rad50-interacting protein, RINT-1.

Abstract：

:The oncogenic process often leads to a loss of normal telomere length control, usually as a result of activation of telomerase. Nevertheless, there are also telomerase-independent events that involve a Rad50-dependent recombination mechanism to maintain telomere length. Previous work has implicated the Rb family of proteins in the control of telomere length, and we now demonstrate that the p130 member of the Rb family is critical for telomere length control. p130 interacts specifically with the RINT-1 protein, previously identified as a Rad50-interacting protein. We further show that RINT-1 is essential for telomere length control. We propose that p130, forming a complex with Rad50 through RINT-1, blocks telomerase-independent telomere lengthening in normal cells. Given previous work implicating E2F in the control of telomerase gene expression, these results thus point to complementary roles for the Rb/E2F pathway in the control of telomere length.

journal_name

Mol Cell

journal_title

Molecular cell

authors

Kong LJ,Meloni AR,Nevins JR

doi

10.1016/j.molcel.2006.02.016

subject

Has Abstract

pub_date

2006-04-07 00:00:00

pages

63-71

issue

1

eissn

1097-2765

issn

1097-4164

pii

S1097-2765(06)00118-3

journal_volume

22

pub_type

杂志文章

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