Literature summary for 3.2.1.103 extracted from

Fukuda, M.; Watanabe, K.; Hakomori, S.I.
Release of oligosaccharides from various glycosphingolipids by endo-beta-galactosidase (1978), J. Biol. Chem., 253, 6814-6819.

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Organism

Organism	UniProt	Comment	Textmining
Escherichia coli	-	-	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
glycosphingolipids + H2O	lacto-N-glycosylceramide series having the common structure R-GlcAcbeta1-3Galbeta1-4Glc(or GlcNAc) are hydrolyzed at Galbeta1-4Glc (or GlcNAC) linkages. beta-Galactosyl linkages in globo series or ganglio series of glycolipids are not hydrolyzed	Escherichia coli	?	-	?
additional information	sialosyl substitution at the terminal galactosyl residue of lacto-N-neotetraosyl structure of paragloboside greatly enhances the hydrolyzability of the internal Galbeta1-4Glc linkage, thus producing a high yield of sialotetrasaccharide (AcNeualpha2-3Galbeta1-4GlcNAcbeta-3Gal). The Galbeta1-4GlcNAc linkage located in the middle of the repeating Galbeta1-4GlcNAc(or Glc) unit seen in H2-glycolipid or Ab-glycolipid, (R-Galbeta1-4GlcNAcbeta1-3Galbeta1-4GlcNAcbeta1-3Galbeta1-4Glc-Cer) is preferentially hydrolyzed relative to the Galbeta1-4Glc linkage directly attached to ceramide. The branched structure as is found in H3-glycolipid greatly reduces the hydrolyzability	Escherichia coli	?	-	?

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Release 2023.1 (January 2023)