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N7885

Sigma-Aldrich

Neuraminidase from Vibrio cholerae

Type III, buffered aqueous solution, 0.2 μm filtered, 1-5 units/mg protein (Lowry, using NAN-lactose)

Synonyme(s) :

Acyl-neuraminyl Hydrolase, Receptor-destroying enzyme, Sialidase

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About This Item

Numéro CAS:
9001-67-6
Numéro de classification (Commission des enzymes):
3.2.1.18 (BRENDA, IUBMB)
Numéro CE :
232-624-6
Numéro MDL:
MFCD00131711
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Niveau de qualité

300

Type

Type III

Forme

buffered aqueous solution

Activité spécifique

1-5 units/mg protein (Lowry, using NAN-lactose)

Poids mol.

83 kDa

Application(s)

diagnostic assay manufacturing

Activité étrangère

Protease and NAN-aldolase, present

Température de stockage

2-8°C

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Description générale

Neuraminidase enzymes are glycoside hydrolase enzymes that catalyze hydrolysis of terminal sialic acid residues. The most well-known are the viral nearamidases, which promote influenza virus release.

Application

Neuraminidase from Vibrio cholerae has been used in a study to assess its role in the binding and uptake of cholera toxin by susceptible cells. It has also been used in a study to investigate the preparation of a sodium substrate and its use in a fluorometric assay of neuraminidase.
Neurminidase is used as a cell-surface probe for glycoconjugate distribution and in substrate specificity studies.

Actions biochimiques/physiologiques

Vibrio cholerae neuraminidase has been shown to promote cholera toxin infection by binding the toxin and aiding in its uptake by cells.

Qualité

Preservative free.

Définition de l'unité

One unit will liberate 1.0 μmole of N-acetylneuraminic acid per min at pH 5.0 at 37 °C using NAN-lactose or bovine submaxillary mucin, unless otherwise specified. Prices based on units using NAN-lactose as substrate.

Forme physique

Aqueous solution, pH 5.5, containing 0.15 M NaCl and 4 mM CaCl2.

Notes préparatoires

Chromatographically purified.

Pictogrammes

Health hazard
GHS08

Mention d'avertissement

Danger

Mentions de danger

H334

Conseils de prudence

P261 - P284 - P501

Classification des risques

Resp. Sens. 1

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Fluorometric assay of neuraminidase with a sodium (4-methylumbelliferyl-alpha-D-N-acetylneuraminate) substrate.
M Potier et al.
Analytical biochemistry, 94(2), 287-296 (1979-04-15)
Jai Woong Seo et al.
Nature communications, 11(1), 2102-2102 (2020-05-02)
Adeno-associated viruses (AAVs) are typically single-stranded deoxyribonucleic acid (ssDNA) encapsulated within 25-nm protein capsids. Recently, tissue-specific AAV capsids (e.g. PHP.eB) have been shown to enhance brain delivery in rodents via the LY6A receptor on brain endothelial cells. Here, we create
P C Reading et al.
Journal of virology, 74(11), 5190-5197 (2000-05-09)
Influenza viruses A/PR/8/34 (PR8; H1N1), A/Aichi/68 X-31 (HKx31; H3N2), and A/Beijing/89 X-109 (BJx109; H3N2) show marked differences in their ability to infect murine macrophages, including resident alveolar and peritoneal macrophages as well as the macrophage-derived cell line J774. The hierarchy
Paola Rota et al.
Organic & biomolecular chemistry, 10(14), 2885-2894 (2012-03-08)
A simple protocol for the synthesis of N-perfluoroacylated and N-acylated glycals of neuraminic acid, with a secondary cyclic amine (morpholine or piperidine) at the 4α position, has been set-up, starting from peracetylated N-acetylneuraminic acid methyl ester that undergoes, sequentially to
L Patrick Havlik et al.
Journal of virology, 95(19), e0058721-e0058721 (2021-07-08)
Adeno-associated viruses utilize different glycans and the AAV receptor (AAVR) for cellular attachment and entry. Directed evolution has yielded new AAV variants; however, structure-function correlates underlying their improved transduction are generally overlooked. Here, we report that infectious cycling of structurally
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