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10269611001

Roche

Neuraminidase (Sialidase)

from Arthrobacter ureafaciens

Synonyme(s) :

PCR, taq

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About This Item

Numéro de classification (Commission des enzymes):
Code UNSPSC :
12352204

Source biologique

bacterial (Arthrobacter ureafaciens)

Niveau de qualité

Forme

solution

Activité spécifique

~25 units/mg protein

Conditionnement

pkg of 1 U (100 μl)

Fabricant/nom de marque

Roche

pH optimal

5.0-5.5

Température de stockage

2-8°C

Description générale

Neuraminidase hydrolyzes terminal N- or O-acylneuraminic acids which are α2,3-, α2,6-, or α2,8-linked (rate: α2,6 > α2,3 > α2,8) to oligosaccharides, polysaccharides, mucopolysaccharides, glycoproteins, and glycolipids. Noteworthy, for the hydrolysis of glycolipids, the presence of a detergent is necessary. Because of the broad substrate specificity, the enzyme is very well suited for the complete removal of sialic acids from glycoconjugates of a wide variety of biological materials.

Spécificité

Cleaves terminal sialic-acid residues that are α2,3-, α2,6-, or α2,8-linked to Gal, GlcNAc, GalNAc, AcNeu, GlcNeu, oligosaccharides, glycolipids, or glycoproteins. Relative rate of cleavage is α2,6 >α2,3 >α2,8, determined on bonds in tri- and tetrasaccharides.

Application

  • cell surface lectin array analysis.
  • hemagglutination assays.
  • cell adhesion assay.
For the hydrolysis of glycolipids, the presence of a detergent is necessary. Because of the broad substrate specificity, the enzyme is very well suited for the complete removal of sialic acids from glycoconjugates of a wide variety of biological materials.
Neuraminidase has been used for the:
  • detection of the cell surface glycosylations in human anaplastic large cell lymphoma cells
  • release of sialic acid from cells
  • antibody-overlay lectin microarray

Propriétés physiques

This product is a mixture of isoenzymes (L, M1, M2 and S) with the following molecular weight values: ~ 52 kDa, 66 kDa and 88 kDa.

Forme physique

Solution in 10 mM sodium phosphate, 0.1% Micr-O-Protect (w/v), 0.25 mg/ml bovine serum albumin, pH 7

Notes préparatoires

Working concentration: Enzyme/substrate ratio should be in the range of 0.04 U/25-80 μg.

Autres remarques

For life science research only. Not for use in diagnostic procedures.

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Skin Sens. 1

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

does not flash

Point d'éclair (°C)

does not flash


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Lam Raga Anggara Markely et al.
Biotechnology progress, 32(1), 235-241 (2015-11-21)
The serum half-life, biological activity, and solubility of many recombinant glycoproteins depend on their sialylation. Monitoring glycoprotein sialylation during cell culture manufacturing is, therefore, critical to ensure product efficacy and safety. Here a high-throughput method for semi-quantitative fingerprinting of glycoprotein
Sialylation by ??galactoside ??2,6?sialyltransferase and N?glycans regulate cell adhesion and invasion in human anaplastic large cell lymphoma
Suzuki O, et al.
International Journal of Oncology, 46(3), 973-980 (2015)
Tomonori Kaifu et al.
The Journal of experimental medicine, 218(12) (2021-11-25)
Dendritic cell immunoreceptor (DCIR) is a C-type lectin receptor with a carbohydrate recognition domain and an immunoreceptor tyrosine-based inhibitory motif. Previously, we showed that Dcir-/- mice spontaneously develop autoimmune enthesitis and sialadenitis, and also develop metabolic bone abnormalities. However, the
Cellular entry of the porcine epidemic diarrhea virus
Li W, et al.
Virus Research, 226, 117-127 (2016)
C K Liu et al.
Journal of virology, 72(6), 4643-4649 (1998-05-30)
The human JC polyomavirus (JCV) is the etiologic agent of the fatal central nervous system (CNS) demyelinating disease progressive multifocal leukoencephalopathy (PML). PML typically occurs in immunosuppressed patients and is the direct result of JCV infection of oligodendrocytes. The initial

Protocoles

Neuraminidase (Sialidase) Protocol

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