MBL Associated Serine Proteases (MASPs) are crucial components of the innate immune system. They associate with mannose-binding lectin (MBL), a pattern recognition molecule that identifies pathogen-associated molecular patterns (PAMPs) on the surface of microorganisms. MASPs are involved in the lectin pathway of the complement system, which is a cascade of protein interactions that enhance the ability of antibodies and phagocytic cells to clear pathogens.
