Tags: Protein.
In molecular biology the galactose binding lectin domain is a protein domain. It is found in many proteins including the lectin purified from sea urchin (Anthocidaris crassispina) eggs SUEL. This lectin exists as a disulfide-linked homodimer of two subunits; the dimeric form is essential for hemagglutination activity. The sea urchin egg lectin (SUEL) forms a new class of lectins.