Glycoprotein-340 is member of the scavenger receptor superfamily and has been identified as a putative SP-D receptor. Gp-340 has been shown to bind SP-D in a calcium dependent manner through a protein-protein interaction. Like SP-D, gp-340 is mainly found in lung tissue and immunohistochemistry revealed high e, Xenopus/Amphibian,pression in alveolar macrophages. An identical protein is present in saliva (salivary agglutinin) and both forms are encoded by the gene DMBT1. This antibody is specific for gp-340.