Anti-MAp44 antibodies are protein reagents that detect specific antigens. The MAp44 antigen is another term for the human protein MBL associated serine protease 1, encoded by the MASP1 gene. The protein is reported to function 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. Canonically, it has an amino acid length of 699 residues and a mass of 79.2 kilodaltons. It is a secreted protein. The MAp44 protein is a member of the Peptidase S1 protein family. Other alias names for MAp44 include 3MC1, CRARF, and CRARF1. Indicated applications for MAp44 antibodies listed below include ELISA, Western Blot, and Immunohistochemistry.