MIB1（mindbomb E3 ubiquitin protein ligase 1），癌症关联基因，基因ID：57534，该基因编码一种含有多个锚蛋白重复序列和无名指结构域的蛋白质，其功能类似于E3泛素连接酶编码的蛋白质通过泛素化notch受体来积极调节notch信号，从而促进其内吞。该蛋白还可能促进死亡相关蛋白激酶1（dapk1）的泛素化和降解。[由RefSeq提供，2013年6月]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). [provided by RefSeq， Jun 2013]。