from these data , and sequence comparison of discoidin i with other lectins , a general model for ligand binding has been proposed in which a sequence from position 176 to 188 , together with another region close to an apolar tryptophan residue , most probably trp-50 , would participate in the calcium- and sugar-binding site ( s ) of this protein .
C0023206
lectins
C1517880
ligand binding