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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

TIN2, a new regulator of telomere length in human cells.

Telomeres are DNA-protein structures that cap linear chromosomes and are essential for maintaining genomic stability and cell phenotype. We identified a novel human telomere-associated protein, TIN2, by interaction cloning using the telomeric DNA-binding-protein TRF1 as a bait. TIN2 interacted with TRF1 in vitro and in cells, and co-localized with TRF1 in nuclei and metaphase chromosomes. A mutant TIN2 that lacks amino-terminal sequences effects elongated human telomeres in a telomerase-dependent manner. Our findings suggest that TRF1 is insufficient for control of telomere length in human cells, and that TIN2 is an essential mediator of TRF1 function.[1]


  1. TIN2, a new regulator of telomere length in human cells. Kim, S.H., Kaminker, P., Campisi, J. Nat. Genet. (1999) [Pubmed]
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