Mannose-specific lectin. Also binds alpha-methyl-D-mannoside, D-glucose, N-acetyl-D-glucosamine and sucrose but not D-galactose, D-arabinose, D-fructose, D-xylose, lactose or glycoproteins fetiun, PSM and ovalbumin. Shows agglutinating activity towards rabbit erythrocytes. Optimum pH is 7-8 for hemagglutinating activity. Activity drops rapidly at lower or higher pH. Thermostable. Retains hemagglutinating activity after incubation at 50 degrees Celsius for 1 hour. At higher temperatures activity drops drastically and is lost at 80 degrees Celsius. Homodimer; non-covalently linked. Glycosylated. CML-1. CML-2. Belongs to the leguminous lectin family.