Elucidation of the substrate binding site of Siah ubiquitin ligase

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Elucidation of the substrate binding site of Siah ubiquitin ligase.

The Siah family of RING proteins function as ubiquitin ligase components, contributing to the degradation of multiple targets involved in cell growth, differentiation, angiogenesis, oncogenesis, and inflammation. Previously, a binding motif (degron) was recognized in many of the Siah degradation targets, suggesting that Siah itself may facilitate substrate recognition. We report the crystal str...

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The Drosophila SINA (seven in absentia) protein and its mammalian orthologs (Siah, seven in absentia homolog) are RING domain proteins that function in E3 ubiquitin ligase complexes and facilitate ubiquitination and degradation of a wide range of cellular proteins, including beta-catenin. Despite these diverse targets, the means by which SINASiah recognize substrates or binding proteins has rem...

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ژورنال

عنوان ژورنال: The FASEB Journal

سال: 2006

ISSN: 0892-6638,1530-6860

DOI: 10.1096/fasebj.20.4.a492