D-mannose/D-glucose-binding lectin (PubMed:24865454). Has anti-inflammatory activity in animal models when applied intravenously (PubMed:24865454). Has antinociceptive activity in mice when applied intravenously (PubMed:19705102). Homodimer and homotetramer. Oligomerization is pH-dependent with homotetramers forming at pH 4 and above. Alpha chain. Beta chain. Gamma chain. Binds one manganese (or another transition metal) ion and one calcium ion. The metal ions are essential for the saccharide-binding and cell-agglutinating activities. Belongs to the leguminous lectin family.