منابع مشابه
A binding motif for Siah ubiquitin ligase.
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...
متن کاملTwo high-resolution structures of the human E3 ubiquitin ligase Siah1
Siah1 is an E3 ubiquitin ligase that contributes to proteasome-mediated degradation of multiple targets in key cellular processes and which shows promise as a therapeutic target in oncology. Structures of a truncated Siah1 bound to peptide-based inhibitors have been reported. Here, new crystallization conditions have allowed the determination of a construct encompassing dual zinc-finger subdoma...
متن کاملThe E3 ubiquitin ligase Siah1 regulates adrenal gland organization and aldosterone secretion.
Primary and secondary hypertension are major risk factors for cardiovascular disease, the leading cause of death worldwide. Elevated secretion of aldosterone resulting from primary aldosteronism (PA) is a key driver of secondary hypertension. Here, we report an unexpected role for the ubiquitin ligase Siah1 in adrenal gland development and PA. Siah1a-/- mice exhibit altered adrenal gland morpho...
متن کاملInvestigating the Molecular Basis of Siah1 and Siah2 E3 Ubiquitin Ligase Substrate Specificity
The Siah1 and Siah2 E3 ubiquitin ligases play an important role in diverse signaling pathways and have been shown to be deregulated in cancer. The human Siah1 and Siah2 isoforms share high sequence similarity but possess contrary roles in cancer, with Siah1 more often acting as a tumor suppressor while Siah2 functions as a proto-oncogene. The different function of Siah1 and Siah2 in cancer is l...
متن کاملE3 Ubiquitin Ligase Siah-1 is Down-regulated and Fails to Target Natural HBx Truncates for Degradation in Hepatocellular Carcinoma.
Hepatocellular carcinoma (HCC) is a common worldwide malignancy with high morbidity and mortality. Hepatitis B viral (HBV)-encoded X protein (HBx) and natural HBx variants play important roles in HBV-associated HCC development. HBx is an unstable protein that can be degraded in vivo. Our previous study found that the E3 ubiquitin ligase Siah-1 could target HBx for poly-ubiquitylation and protea...
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ژورنال
عنوان ژورنال: Atlas of Genetics and Cytogenetics in Oncology and Haematology
سال: 2013
ISSN: 1768-3262
DOI: 10.4267/2042/51047