EC - Blood-group-substance endo-1,4-β-galactosidase

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IntEnz Enzyme Nomenclature


Accepted name:
blood-group-substance endo-1,4-β-galactosidase
Other names:
endo-β-galactosidase [ambiguous]
blood-group-substance 1,4-β-D-galactanohydrolase
Systematic name:
blood-group-substance 4-β-D-galactanohydrolase



Hydrolyses the 1,4-β-D-galactosyl linkages adjacent to a 1,3-α-D-galactosyl or N-acetylgalactosaminyl residues and a 1,2-α-D-fucosyl residue.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB
Gene Ontology: GO:0033929


  1. Fukuda, M.N. and Matsumara, G.
    Endo-β-galactosidase of Escherichia freundii. Purification and endoglycosidic action on keratan sulfates, oligosaccharides, and blood group active glycoprotein.
    J. Biol. Chem. 251 : 6218-6225 (1976). [PMID: 135762]
  2. Nakazawa, K. and Suzuki, S.
    Purification of keratan sulfate-endogalactosidase and its action on keratan sulfates of different origin.
    J. Biol. Chem. 250 : 912-917 (1975). [PMID: 234443]
  3. Takasaki, S. and Kobata, A.
    Purification and characterization of an endo-β-galactosidase produced by Diplococcus pneumoniae.
    J. Biol. Chem. 251 : 3603-3609 (1976). [PMID: 6459]

[EC created 1984]