Anti-Mib1/Mindbomb Antibody Picoband®

E3 ubiquitin-protein ligase MIB1 is an enzyme that in humans is encoded by the MIB1 gene. It is mapped to 18q11.2. This gene encodes a protein containing multiple ankyrin repeats and RING finger domains that functions as an E3 ubiquitin ligase. The encoded protein positively regulates Notch signaling by ubiquitinating the Notch receptors, thereby facilitating their endocytosis. This protein may also promote the ubiquitination and degradation of death-associated protein kinase 1 (DAPK1) .

E3 ubiquitin-protein ligase MIB1; DAPK-interacting protein 1; DIP-1; Mind bomb homolog 1; RING-type E3 ubiquitin transferase MIB1 ; Zinc finger ZZ type with ankyrin repeat domain protein 2; MIB1; DIP1; KIAA1323; ZZANK2

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 (By similarity) . 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.

1. Barsi, J. C., Rajendra, R., Wu, J. I., Artzt, K. Mind bomb1 is a ubiquitin ligase essential for mouse embryonic development and Notch signaling. Mech. Dev. 122: 1106-1117, 2005. 2. Henshall, D. C., Schindler, C. K., So, N. K., Lan, J.-Q., Meller, R., Simon, R. P.Death-associated protein kinase expression in human temporal lobe epilepsy. Ann. Neurol. 55: 485-494, 2004. 3. Jin, Y., Blue, E. K., Dixon, S., Shao, Z., Gallagher, P. J. A death-associated protein kinase (DAPK) -interacting protein, DIP-1, is an E3 ubiquitin ligase that promotes tumor necrosis factor-induced apoptosis and regulates the cellular levels of DAPK. J. Biol. Chem. 277: 46980-46986, 2002.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.