Catfish (Clarias batrachus) serum lectin recognizes polyvalent Tn [α-d-GalpNAc1-Ser/Thr], Tα [β-d-Galp-(1→3)-α-d-GalpNAc1-Ser/Thr], and II [β-d-Galp(1→4)-β-d-GlcpNAc1-] mammalian glycotopes

Order of avidity for ligands: polyvalent Tn, Tα, and II ≫≫ Tn ⩾ Me-αGalNAc > Tα > Me-βGalNAc > Me-αGal > T > GalNAc > F > II > Me-βGal > Gal.