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G0535

Sigma-Aldrich

Glycopeptidase A from almonds

buffered aqueous glycerol solution, ≥0.05 unit/mL

Synonyme(s) :

N-Glycosidase A, N-linked-glycopeptide-(N-acetyl-β-D-glucosaminyl)-L-asparagine amidohydrolase, PNGase A

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About This Item

Numéro CAS:
83534-39-8
Numéro de classification (Commission des enzymes):
3.5.1.52 (BRENDA, IUBMB)
Numéro MDL:
MFCD00131222
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.32

Conjugué

(N-linked)

Niveau de qualité

200

Forme

buffered aqueous glycerol solution

Concentration

≥0.05 unit/mL

Température de stockage

−20°C

Catégories apparentées

Description générale

Glycopeptidase found in almonds can be divided into three groups- A, B and C. the optimum pH value and the isoelectric point of glycopeptidase A is 6.0 and 7.7 respectively. It has a preference for glycopeptides with long chains. It is also capable of hydrolyzing intact glycoproteins such as, desialyted human transferrin, ovalbumin etc. These proteins cleave glycoproteins with asialocarbohydrate moieties at their β-aspartyl-glucosylamine linkages.

Application

Glycopeptidase A from almonds is used for deglycosylation. It catalyzes the removal of N-linked oligosaccharide chains and converts Asn residue to Asp.

Actions biochimiques/physiologiques

Hydrolyzes an N4-(acetyl-β-D-glycosaminyl)asparagine in which the N-acetyl-D-glucosamine residue may be further glycosylated, yielding a (substituted) N-acetyl-β-D-glucoaminylamine and the peptide containing an aspartic residue.

Définition de l'unité

One unit will hydrolyze 1.0 μmole of ovalbumin glycopeptide per min at pH 5.0 at 37°C.

Forme physique

Solution in 50% glycerol containing 50 mM citrate-phosphate buffer, pH 5.0, and BSA.

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

No data available

Point d'éclair (°C)

No data available

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T Takahashi et al.
Biochimica et biophysica acta, 657(2), 457-467 (1981-02-13)
The glycopeptidase preparation that has been isolated from almond emulsin and acts on beta-aspartylglycosylamine linkages in glycopeptides was separated into three active fractions by DEAE-cellulose column chromatography. The three discrete species of glycopeptidase (Groups A, B and C) have been
Asparagine-linked oligosaccharides in human placenta and umbilical cord as demonstrated by almond glycopeptidase.
N Takahashi et al.
FEBS letters, 146(1), 139-142 (1982-09-06)
Karen G Welinder et al.
The Journal of biological chemistry, 284(15), 9764-9769 (2009-02-13)
Proteome data of potato (Solanum tuberosum) tuber juice and of purified potato tuber vacuoles indicated that mature patatins may perhaps lack a C-terminal propeptide. We have confirmed this by complete mass spectrometric sequencing of a number of patatin variants as
R P Miller et al.
Biochimica et biophysica acta, 954(1), 50-57 (1988-04-28)
The beta-subunit of dog kidney (Na+ + K+)-ATPase is a sialoglycoprotein and contains three potential N-glycosylation sites. In this study, the oligosaccharide chains of purified dog kidney beta-subunit were labeled with tritium by oxidation with sodium periodate or galactose oxidase
Pia H Jensen et al.
Nature protocols, 7(7), 1299-1310 (2012-06-09)
This protocol shows how to obtain a detailed glycan compositional and structural profile from purified glycoproteins or protein mixtures, and it can be used to distinguish different isobaric glycan isomers. Glycoproteins are immobilized on PVDF membranes before the N-glycans are
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