FEATURES

FAMILY

DESCRIPTION

Also known as MASP1_HUMAN, MASP1, CRARF, CRARF1, PRSS5. Functions in the lectin pathway of complement, which performs a key role in innate immunity by recognizing pathogens through patterns of sugar moieties and neutralizing them. The lectin pathway is triggered upon binding of mannan-binding lectin (MBL) and ficolins to sugar moieties which leads to activation of the associated proteases MASP1 and MASP2. Functions as an endopeptidase and may activate MASP2 or C2 or directly activate C3 the key component of complement reaction. Isoform 2 may have an inhibitory effect on the activation of the lectin pathway of complement or may cleave IGFBP5. Also plays a role in development (PubMed:21258343). Homodimer. Interacts with the oligomeric lectins MBL2, FCN2 and FCN3; triggers the lectin pathway of complement through activation of C3. Interacts with SERPING1. Interacts with COLEC11; probably triggers the lectin pathway of complement (PubMed:20956340).

Also known as MASP1_HUMAN, MASP1, CRARF, CRARF1, PRSS5. Functions in the lectin pathway of complement, which performs a key role in innate immunity by recognizing pathogens through patterns of su ...

EXTERNAL LINKS

MASP1

Mutations

Mutation(s) distribution

Mutations table