O-Glycanase™ [GK80090]

$ 250.00


Releases unsubstituted, Ser/Thr-linked GalGalNAc from proteins; used with additional enzymes to remove more complex O-linked structures. Also known as Endo-O-Glycosidase™, Endo-α N-acetylgalactosaminidase, O-Glycosidase. 

Recombinant gene from Streptococcus pneumoniae, expressed in E.coli.

The enzyme is highly specific, liberating Galβ1-3GalNAc from serine or threonine residues alone or as part of glycopeptides or glycoproteins. There is no apparent preference for serine over threonine. Substitution of the disaccharide core with sialic acid, fucose, N-acetylglucosamine or N-acetylgalactosamine residues, prevents cleavage of the glycosylamine linkage. Absence of the galactose residue or the acetamido group on the innermost N-acetylgalactosamine residue also prevents cleavage of the glycosylamine linkage.

O-Glycanase is included in our Enzymatic Deglycosylation Kit for N-Linked & Simple O-Linked Glycans (GK80110), which may be used in conjunction with our prO-LINK Extender™ Kit for Complex O-Linked Glycans (GK80115).


  • Detection of O-glycosylation in proteins
  • Epitope and binding site analysis
  • Bioactivity in O-glycans
  • Analysis of biosynthesis of glycoproteins
  • Structural analysis of O-glycan
  • Glycoprotein deglycosylation

Ships with:
WS0059 5X reaction buffer A [250 mM sodium phosphate pH 5.0]

20 mM Tris HCl pH 7.5 containing 25 mM NaCl.

Reaction Buffer:
5X concentrated buffer which when diluted gives 50 mM sodium phosphate pH 5.0.

~180 kD

pH optimum/range:
5.5 / 5.0 - 7.0

Unit Definition:
One unit is defined as the amount of enzyme required to catalyze the release of 1 μmole of Galβ1-3GalNAcα1-p-nitrophenol per minute at 37°C, pH 5.5.

Size: 50 mU (40 µl)

Concentration: ≥ 1.25 U/ml

Product Code: GK80090

Tech Info

GK80090 Technical Data Sheet  


Product Safety Documentation for GK80090:

Product/Part No. Description
GK80090 O-Glycanase™  
WS0059 5x Incubation Buffer A


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