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Identification of Stk6/STK15 as a candidate low-penetrance tumor-susceptibility gene in mouse and human

Lookup NU author(s): Professor Sir John Burn, Maria Almeida

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Abstract

Linkage analysis and haplotype mapping in interspecific mouse crosses (Mus musculus x Mus spretus) identified the gene encoding Aurora2 (Stk6 in mouse and STK15 in human) as a candidate skin tumor susceptibility gene. The Stk6 allele inherited from the susceptible M. musculus parent was overexpressed in normal cells and preferentially amplified in tumor cells from F1 hybrid mice. We identified a common genetic variant in STK15 (resulting in the amino acid substitution F31I) that is preferentially amplified and associated with the degree of aneuploidy in human colon tumors. The Ile31 variant transforms rat1 cells more potently than the more common Phe31 variant. The E2 ubiquitin-conjugating enzyme UBE2N was a preferential binding partner of the 'weak' STK15 Phe31 variant form in yeast two-hybrid screens and in human cells. This interaction results in colocalization of UBE2N with STK15 at the centrosomes during mitosis. These results are consistent with an important role for the Ile31 variant of STK15 in human cancer susceptibility.


Publication metadata

Author(s): Ewart-Toland A, Briassouli P, De Koning JP, Mao J-H, Yuan J, Chan F, MacCarthy-Morrogh L, Ponder BAJ, Nagase H, Burn J, Ball S, Almeida M, Linardopoulos S, Balmain A

Publication type: Article

Publication status: Published

Journal: Nature Genetics

Year: 2003

Volume: 34

Issue: 4

Pages: 403-412

ISSN (print): 1061-4036

ISSN (electronic): 1546-1718

Publisher: Nature Publishing Group

URL: http://dx.doi.org/10.1038/ng1220

DOI: 10.1038/ng1220

PubMed id: 12881723


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