The de-ubiquitinating enzyme Unp interacts with the retinoblastoma protein

被引:30
作者
DeSalle, LM
Latres, E
Lin, D
Graner, E
Montagnoli, A
Baker, RT
Pagano, M [1 ]
Loda, M
机构
[1] Dana Farber Canc Inst, Dept Adult Oncol, Boston, MA 02115 USA
[2] NYU, Med Ctr, Dept Pathol, New York, NY 10016 USA
[3] NYU, Med Ctr, Caplan Comprehens Canc Ctr, New York, NY 10016 USA
[4] Harvard Univ, Brigham & Womens Hosp, Sch Med, Dept Pathol, Boston, MA 02115 USA
[5] Australian Natl Univ, John Curtin Sch Med Res, Canberra, ACT 2601, Australia
关键词
Unp; retinoblastoma; isopeptidase; ubiquitin;
D O I
10.1038/sj.onc.1204824
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The ubiquitin pathway is involved in the proteolytic turnover of many short-lived cellular regulatory proteins. Since selective degradation of substrates of this system requires the covalent attachment of a polyubiquitin chain to the substrates, degradation could be counteracted by de-ubiquitinating enzymes (or isopeptidases) which selectively remove the polyubiquitin chain. Unp is a human isopeptidase with still poorly understood biological functions. Here, we show that cellular Unp specifically interacts with the retinoblastoma gene product (pRb).
引用
收藏
页码:5538 / 5542
页数:5
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