Cbl proteins are a family of ubiquitin protein ligases (E3s) that negatively regulate signaling by targeting activated tyrosine kinases for degradation. Cbl- c is the most recently cloned member of the Cbl proteins and is expressed only in epithelial cells (the other Cbl proteins are ubiquitously expressed). Cbl-c, like the other mammalian Cbl proteins, can ubiquitinate the activated EGFR and target it for degradation. Through interactions with proteins containing SRC homology-2 (SH2) and SH3 domains, CBL proteins modulate downstream cell signaling.
Protein Aliases: Cas-Br-M (murine) ecotropic retroviral transforming sequence; Casitas B-lineage lymphoma; Casitas B-lineage lymphoma proto-oncogene; Cbl proto-oncogene, E3 ubiquitin protein ligase; CBL-3; CBLC; E3 ubiquitin-protein ligase CBL; fragile site, folic acid type, rare, fra(11)(q23.3); oncogene CBL2; Proto-oncogene c-Cbl; RING finger protein 55; RING-type E3 ubiquitin transferase CBL; RNF57; Signal transduction protein CBL
Gene Aliases: 4732447J05Rik; C-CBL; CBL; Cbl-2; CBL2; FRA11B; NSLL; RGD1561386; RNF55