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Key Documents

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:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.32

recombinant

expressed in E. coli

Quality Level

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

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K M Hong et al.
Journal of cancer research and clinical oncology, 127(9), 551-558 (2001-09-26)
To identify a new tumor-associated antigen, a monoclonal antibody, SC142, was produced by immunizing mice with a stomach cancer cell line. The tumor specificity of mAb SC142 was studied by immunohistochemical staining, and the biochemical characteristics of this new gastrointestinal
C Liu et al.
Journal of mass spectrometry : JMS, 32(1), 33-42 (1997-01-01)
A high-performance liquid chromatographic/electrospray mass spectrometric (HPLC/MS) technique is described for the characterization of the beta-subunit of the glycopeptide human chorionic gonadotropin (hCG). The beta-subunit of hCG was dissociated from the alpha-subunit using 0.1% trifluoroacetic acid (TFA) and separated by
L Robertson et al.
Journal of reproduction and fertility, 120(2), 397-403 (2000-11-04)
This study demonstrates that carbohydrates play an essential role in sperm-egg interactions in birds. Sperm-egg interaction was measured in vitro as the ability of spermatozoa to hydrolyse a small hole in the inner perivitelline layer, the equivalent of the mammalian
A Hachisuka et al.
Neurochemistry international, 28(4), 373-379 (1996-04-01)
Monoclonal antibodies to opioid-binding cell adhesion molecule (OBCAM) were produced against a synthetic OBCAM peptide. Immunoblotting analysis revealed that the antibodies reacted with 58 and/or 51 kDa proteins in P2 membranes from bovine, rat, mouse, guinea pig and rabbit brains.
B S Dunbar et al.
Biology of reproduction, 65(3), 951-960 (2001-08-22)
A lactosaminoglycan-associated antigen is associated with a carbohydrate moiety of all three zona pellucida (ZP) glycoproteins of pig and rabbit but is absent in the mouse and rat. A monoclonal antibody (PS1) recognizing this determinant was obtained by immunizing mice

Articles

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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