Abhydrolase Domain Containing 2 (ABHD2) Antibody

Background

ABHD2 is a serine hydrolase well-known for its role in sperm activation and fertilization by regulating the CatSper calcium channel, which is activated by progesterone. This calcium influx is essential for sperm motility and the acrosome reaction. Beyond reproduction, ABHD2 is expressed in the lungs, brain, and immune cells, where it hydrolyzes bioactive lipids, including 2-arachidonoylglycerol (2-AG), a key endocannabinoid. Through lipid metabolism, ABHD2 modulates inflammatory responses, immune signaling, and cellular lipid composition. Dysregulation of ABHD2 has been associated with infertility, due to impaired sperm activation, and inflammatory diseases, highlighting its dual importance in reproductive biology and immune regulation. Structurally, ABHD2 features a catalytic triad within its hydrolase domain, driving its activity in lipid processing and signaling. Its multifunctionality and therapeutic relevance make it a critical target for understanding lipid metabolism in both reproductive and systemic contexts.