Erlin-1 and erlin-2 (SPFH1 and SPFH2) are SPFH domain-containing proteins that belong to the prohibitin family . The N-termal domain of erlin proteins contains ER-targeting sequences responsible for their translocation to the endoplasmic reticulum (ER) . In the ER, erlin-1 and erlin-2 specifically associate with the detergent resistant lipid raft microdomain of the membrane . Erlin-1 may be involved in dentritic cell activation and erlin-2 has been shown to regulate the ER-associated degradation (ERAD) pathway by interacting with endogenous substrates and resulting in their polyubiquitination and degradation .蛋白质ID:O75477/O94905