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Origin of Mannose-Binding Lectin-Associated Serine Protease (MASP)-1 and MASP-3 Involved in the Lectin Complement Pathway Traced Back to the Invertebrate, Amphioxus

1 May 2003

Abstract excerpt

Mannose-binding lectin-associated serine proteases (MASPs) are involved in complement activation through the lectin pathway. To elucidate the phylogenetic origin of MASP and a primordial complement system, we cloned two MASP cDNAs from amphioxus (Branchiostoma belcheri) of the cephalochordates, considered to be the closest relative of vertebrates. The two sequences, orthologues of mammalian MASP-1 and MASP-3,...

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PMID: 12707349
DOI: 10.4049/jimmunol.170.9.4701

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