Advances in the previous two decades in our understanding of the post-translational modifications, functions, and drug perspectives of ArgBP2 and its family members

Arginine kinase-binding protein 2 (ArgBP2) is an adapter protein that belongs to the sorbin homology (SoHo) family. The SoHo family also includes c-Cbl-associated protein (CAP) and vinexin, both of which share structural and functional similarities to ArgBP2. However, the role of SoHo family proteins in cell signaling, drug resis-tance, metabolism, and diseases, especially cancer, is not fully understood. Herein, we summarize the structure of SoHo family proteins, their post-translational modifications and the comprehensive network of cellular pathways regulated by these proteins, with an emphasis on ArgBP2. We also discuss the relevance of the SoHo family proteins in lipid raft distribution, extracellular matrix-associated microenvironments, and drug discovery. This review provides insights into the possibility of targeting ArgBP2 and other SoHo family proteins as drugs for use in preclinical trials.