Reaction catalyzed by keratan-sulfate endo-1,4-beta-galactosidase (3.2.1.103)
+
H2O
=
+
NeuAcalpha2-3Galbeta1-4GlcNAcbeta1-3Galbeta1-4Glc-Cer
+
H2O
=
NeuAcalpha2-3Galbeta1-4GlcNAcbeta1-3Gal
+
Glc-Cer