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N6514

Sigma-Aldrich

Neuraminidase from Vibrio cholerae

Type II, buffered aqueous solution, 8-24 units/mg protein (Lowry, using NAN-lactose)

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Synonym(s):
Acyl-neuraminyl Hydrolase, Receptor-destroying enzyme, Sialidase
CAS Number:
9001-67-6
Enzyme Commission number:
3.2.1.18 (BRENDA, IUBMB)
EC Number:
232-624-6
MDL number:
MFCD00131711
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

Vibrio cholerae

Quality Level

200

type

Type II

form

buffered aqueous solution

specific activity

8-24 units/mg protein (Lowry, using NAN-lactose)

foreign activity

Protease and NAN-aldolase, present

storage temp.

2-8°C

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General description

Calorimetry studies show that the two lectin-like domains flanking the central catalytic domain of Neuraminidase serve as the recognition and binding sites for sialic acid-containing substrates.
Neuraminidase enzymes are hydrolase enzymes that promote influenza virus release from infected cells and facilitate virus spread.

Application

Neuraminidase from Vibrio cholera has been used in a study to describe a five-step purification method. It has also been used in a study to investigate modification of leukemia L1210 tumor cells.
Neurminidase is used as a cell-surface probe for glycoconjugate distribution and in substrate specificity studies.

Quality

Preservative free.

Unit Definition

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.

Physical form

Solution in 50 mM sodium acetate, pH 5.5, containing 0.15 M sodium chloride and 4 mM calcium chloride, 0.2 μm filtered..

Preparation Note

A further purification by affinity chromatography of our Type III.

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H334

Precautionary Statements

P261 - P284 - P501

Hazard Classifications

Resp. Sens. 1

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

常规特殊物品

Certificates of Analysis (COA)

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Increase of leukemia L1210 immunogenicity by Vibrio cholerae neuraminidase treatment.
J G Bekesi et al.
Cancer research, 31(12), 2130-2132 (1971-12-01)
Paul Clark et al.
Viruses, 12(10) (2020-10-24)
Polyomaviruses are small, non-enveloped DNA tumor viruses that cause serious disease in immunosuppressed people, including progressive multifocal leukoencephalopathy (PML) in patients infected with JC polyomavirus, but the molecular events mediating polyomavirus entry are poorly understood. Through genetic knockdown approaches, we
Hirokazu Kai et al.
Bioorganic & medicinal chemistry, 20(8), 2739-2746 (2012-03-14)
A selective and potent inhibitor of neuraminidases, a hydrolase that is responsible for processing sialylated glycoconjugates, is a promising drug candidate for various infective diseases. The current study demonstrates that the use of an aglycone-focused library of 2-difluoromethylphenyl α-sialosides is
Ibrahim Moustafa et al.
The Journal of biological chemistry, 279(39), 40819-40826 (2004-07-01)
Vibrio cholerae neuraminidase (VCNA) plays a significant role in the pathogenesis of cholera by removing sialic acid from higher order gangliosides to unmask GM1, the receptor for cholera toxin. We previously showed that the structure of VCNA is composed of
Matthew D Lauver et al.
eLife, 9 (2020-09-18)
JCPyV polyomavirus, a member of the human virome, causes progressive multifocal leukoencephalopathy (PML), an oft-fatal demyelinating brain disease in individuals receiving immunomodulatory therapies. Mutations in the major viral capsid protein, VP1, are common in JCPyV from PML patients (JCPyV-PML) but
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Articles

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Protocols

Enzymatic Assay of Neuraminidase

Enzymatic Assay of Neuraminidase applies to products that have a specification for neuraminidase content by enzymatic determination.

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