The amino acid sequences of jacalin and the Maclura pomifera agglutinin

Abstract
Amino acid sequences for the α-chains of the Moraceae lectins, jacalin and Maclura pomifera agglutinin, were determined by protein sequencing. Both are 133 residues long and contain several genetically variant positions; the overall homology is 85%. A possible site for the known glycopeptide ot jacalin was located. The α-chains have a conserved tryptophan residue that may be part of the binding-site.