Anti-MIB1

Rabbit Polyclonal MIB1 Antibody against Human MIB E3 ubiquitin protein ligase 1. Validated for Western Blot. Buffer: 40% glycerol and PBS (pH 7.2). 0.02% sodium azide is added as preservative. Interspecies information: Highest antigen sequence indentity to the following orthologs: ENSMUSG00000024294: 95%, ENSRNOG00000013281: 95%. Protein function: E3 ubiquitin-protein ligase that mediates ubiquitination of Delta receptors, which act as ligands of Notch proteins. Positively regulates the Delta-mediated Notch signaling by ubiquitinating the intracellular domain of Delta, leading to endocytosis of Delta receptors. Probably mediates ubiquitination and subsequent proteasomal degradation of DAPK1, thereby antagonizing anti-apoptotic effects of DAPK1 to promote TNF-induced apoptosis. Involved in ubiquitination of centriolar satellite CEP131, CEP290 and PCM1 proteins and hence inhibits primary cilium formation in proliferating cells. Mediates 'Lys-63'-linked polyubiquitination of TBK1, which probably participates in kinase activation. [The UniProt Consortium]