Kelch-like protein 20 (KLHL20)

The BCR(KLHL20) E3 ubiquitin ligase complex mediates the ubiquitination of DAPK1, resulting in its degradation by the proteasome, thereby acting as a negative regulator of apoptosis (PubMed:20389280). The BCR(KLHL20) E3 ubiquitin ligase complex also specifically mediates 'Lys-33'- linked ubiquitination (PubMed:24768539).

Involved in anterograde Golgi to endosome transport by mediating 'Lys-33'-linked ubiquitination of CORO7, promoting interaction between CORO7 and EPS15, thereby facilitating actin polymerization and post-Golgi trafficking (PubMed:24768539). Also functions as a regulator of endothelial migration during angiogenesis by controlling the activation of Rho GTPases.