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G1163

Sigma-Aldrich

O-Glycosidase from Streptococcus pneumoniae

recombinant, expressed in E. coli, buffered aqueous solution

Synonym(s):

Endo-α-N-acetylgalactosaminidase, O-Glycanase

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About This Item

CAS Number:
9032-92-2
Enzyme Commission number:
3.2.1.97 (BRENDA, IUBMB)
EC Number:
232-888-2
MDL number:
MFCD00131003
UNSPSC Code:
12352204
NACRES:
NA.32

recombinant

expressed in E. coli

Quality Level

200

conjugate

(O-linked)

form

buffered aqueous solution

mol wt

180 kDa

concentration

≥800 units/mL

shipped in

wet ice

storage temp.

2-8°C

Biochem/physiol Actions

Releases unsubstituted Ser- and Thr-linked β-Gal-(1→3)-α-GalNAc (Core 1 type O-glycan) from glycoproteins. Substitutions of the disaccharide core with sialic acid, lactosamine (galactose-N-acetyl glucosamine), or fucose will block hydrolysis and prevent the liberation of the oligosaccharide from the protein. Pretreament with glycolytic enzymes to remove substituent saccharides from the O-glycan may be needed prior to cleavage using O-glycosidase..

Packaging

Supplied with 5× Reaction Buffer, 250 mM NaH2PO4 pH 5.0.

Unit Definition

One unit will hydrolyze 1 μmole of p-nitrophenyl galacto-N-bioside (β-Gal-(1→3)-α-GalNAc-1→ΟC6H4NO2) per min at 37 °C at pH 6.5.

Physical form

Solution in 50 mM sodium phosphate, pH 7.5

Analysis Note

Screened for presence of: β-galactosidase, α-mannosidase, β-hexosaminidase, α-fucosidase, neuraminidase, and proteases. See Certificate of Analysis for lot specific information.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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I Brockhausen
Biochimica et biophysica acta, 1473(1), 67-95 (1999-12-02)
Glycoproteins with O-glycosidically linked carbohydrate chains of complex structures and functions are found in secretions and on the cell surfaces of cancer cells. The structures of O-glycans are often unusual or abnormal in cancer, and greatly contribute to the phenotype
Nelia A Tobey et al.
Digestive diseases and sciences, 55(7), 1856-1865 (2010-05-27)
The structures that contribute to shunt resistance (Rs) in esophageal epithelium are incompletely understood, with 35-40% of Rs known to be calcium-dependent, reflecting the role of e-cadherin. Two calcium-independent candidates for the remaining approximately 60% of Rs have been identified:
Roudabeh J Jamasbi et al.
Hybridoma and hybridomics, 22(6), 367-376 (2003-12-20)
A mouse monoclonal antibody (MAb-9) produced by immunization with a human esophageal carcinoma cell line, TE-2 (derived from undifferentiated squamous cell carcinoma) reacted specifically with about 30% of esophageal carcinoma cell lines and tissue sections from clinical samples. MAb-9 showed
H Yamini Shrivastava et al.
Journal of biomolecular structure & dynamics, 21(5), 671-680 (2004-02-11)
In the present study, the impact of chromium(III) complexes ([Cr(salen)(H2O)2](+) (1), [Cr(en)3]3+ (2) and [Cr(EDTA)(H2O)]- (3)) on the biophysical properties of mucin like specific viscosity, zeta potential and particle size has been investigated. It is evident from the present investigation
Tongzhong Ju et al.
Glycobiology, 16(10), 947-958 (2006-06-10)
The common O-glycan core structure in animal glycoproteins is the core 1 disaccharide Galbeta1-3GalNAcalpha1-Ser/Thr, which is generated by the addition of Gal to GalNAcalpha1-Ser/Thr by core 1 UDP-alpha-galactose (UDP-Gal):GalNAcalpha1-Ser/Thr beta1,3-galactosyltransferase (core 1 beta3-Gal-T or T-synthase, EC2.4.1.122). Although O-glycans play important
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O-Linked Glycan Strategies

Learn about O-linked glycan strategies, O-glycosidase actions, how to remove sialic acid residues, β-Elimination, and O-glycan modifications.

O-Linked Glycan Strategies

Learn about O-linked glycan strategies, O-glycosidase actions, how to remove sialic acid residues, β-Elimination, and O-glycan modifications.

O-Linked Glycan Strategies

Learn about O-linked glycan strategies, O-glycosidase actions, how to remove sialic acid residues, β-Elimination, and O-glycan modifications.

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