SIAH1, 90-282aa, Human

Proteins, Recombinant
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Product Name SIAH1, 90-282aa, Human
Applications SDS-PAGE
Background E3 ubiquitin-protein ligase SIAH1, also known as SIAH1, is a member of the seven in absentia homolog (SIAH) family. SIAH1 is a tumor suppressor protein that is expressed in intestinal epithelium and activated during apoptosis. SIAH1 contains an N-terminal RING-finger domain, which is required for proteolysis, and a cystein-rich C-terminal domain, which regulates oligomerization and SIAH binding to target proteins. SIAH1 is known to cause indirect degradation of beta-catenin through formation of a complex with Siah-interacting protein (SIP), Skp1 and Ebi. Recombinant human SIAH1 protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques.
Concentration 1 mg/ml (determined by Bradford assay)
Form Liquid, in 20mM Tris-HCl buffer (pH8.0) containing 10% glycerol, 0.15M NaCl
Species Human
Host E.coli
Intended Use For Research Use Only
Molecular Weight 29.0kDa(260aa), confirmed by MALDI-TOF
NCBI Accession # NP_003022
Purity > 95% by SDS-PAGE
References Hu G., et al. (1999) Mol Cell Biol. 19: 724-732
Matsuzawas S., et al. (1998) EMBO J. 17: 2736-2747.
Storage Can be stored at +4C short term (1-2 weeks). For long term storage, aliquot and store at -20C or -70C. Avoid repeated freezing and thawing cycles.
Synonyms E3 ubiquitin-protein ligase SIAH1, SIAH1A
Tag His-tag

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