rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
4
|
pubmed:dateCreated |
2004-3-26
|
pubmed:databankReference |
|
pubmed:abstractText |
Human LPTS/PinX1 is a telomerase-inhibitory protein, which binds to the telomere protein Pin2/TRF1 and the catalytic subunit hTERT of telomerase. To explore the proteins that might be involved in the telomerase pathway, we performed a yeast two-hybrid screening with LPTS/PinX1 as the bait. A novel gene, MCRS2, encoding for an isoform of MCRS1/p78 and MSP58 was isolated. The expression of MCRS2 protein is cell-cycle dependent, accumulating in the very early S phase. MCRS2 interacts with LPTS/PinX1 in vitro, in vivo and colocalizes with LPTS/PinX1 in cells. MCRS2 and its amino terminus inhibit telomerase activity in vitro and long-term overexpression of MCRS2 in SMMC-7721 cells results in a gradual and progressive shortening of telomeres. Our findings suggest that MCRS2 might be a linker between telomere maintenance and cell-cycle regulation.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
0006-291X
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
16
|
pubmed:volume |
316
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1116-23
|
pubmed:dateRevised |
2011-9-26
|
pubmed:meshHeading |
pubmed-meshheading:15044100-Base Sequence,
pubmed-meshheading:15044100-Brain,
pubmed-meshheading:15044100-Carcinoma, Hepatocellular,
pubmed-meshheading:15044100-Cell Cycle,
pubmed-meshheading:15044100-Cell Cycle Proteins,
pubmed-meshheading:15044100-Cell Line, Tumor,
pubmed-meshheading:15044100-Gene Expression Regulation, Neoplastic,
pubmed-meshheading:15044100-Humans,
pubmed-meshheading:15044100-Liver,
pubmed-meshheading:15044100-Molecular Sequence Data,
pubmed-meshheading:15044100-Nuclear Proteins,
pubmed-meshheading:15044100-Proteins,
pubmed-meshheading:15044100-RNA-Binding Proteins,
pubmed-meshheading:15044100-Telomere,
pubmed-meshheading:15044100-Tumor Suppressor Proteins
|
pubmed:year |
2004
|
pubmed:articleTitle |
Human MCRS2, a cell-cycle-dependent protein, associates with LPTS/PinX1 and reduces the telomere length.
|
pubmed:affiliation |
State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai 200031, China.
|
pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
|