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Key Documents

N5521

Sigma-Aldrich

α(2→3,6) Neuraminidase from Clostridium perfringens (C. welchii)

recombinant, expressed in E. coli, buffered aqueous solution, ≥250 units/mg protein

Synonym(s):

Acyl-Neuraminyl Hydrolase, Sialidase

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About This Item

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

recombinant

expressed in E. coli

Quality Level

form

buffered aqueous solution

specific activity

≥250 units/mg protein

mol wt

~41 kDa

foreign activity

proteases, none detected

shipped in

wet ice

storage temp.

2-8°C

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Biochem/physiol Actions

Releases α(2→3)- and α(2→6)-linked N-acetylneuraminic acid from complex oligosaccharides.

Packaging

Provided with 5× reaction buffer (250 mM sodium phosphate, pH 6.0).

Unit Definition

One unit will hydrolyze 1 μmole of 4-methylumbelliferyl α-D-N-acetylneuraminide per min at pH 5.0 at 37 °C

Physical form

Solution in 20 mM Tris-HCl, pH 7.5, and 25 mM NaCl.

Preparation Note

Expressed in glycosidase-free hosts.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Resp. Sens. 1

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Andreas Max Ernst et al.
FEBS letters, 587(9), 1411-1417 (2013-03-26)
Influenza A Neuraminidase is essential for virus release from the cell surface of host cells. Given differential structures of the N-terminal sequences including the transmembrane domains of neuraminidase subtypes, we investigated their contribution to transport and localization of subtypes N1
Weijia Wang et al.
Journal of virology, 87(8), 4642-4649 (2013-02-15)
In 2009, we successfully produced a high-yield live attenuated H1N1pdm A/California/7/2009 vaccine (CA/09 LAIV) by substitution of three residues (K119E, A186D, and D222G) in the hemagglutinin (HA) protein. Since then, we have generated and evaluated additional H1N1pdm vaccine candidates from
S Bhatt et al.
Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 368(1614), 20120382-20120382 (2013-02-06)
Few questions on infectious disease are more important than understanding how and why avian influenza A viruses successfully emerge in mammalian populations, yet little is known about the rate and nature of the virus' genetic adaptation in new hosts. Here
E V Kostina et al.
Bioorganicheskaia khimiia, 38(6), 676-682 (2013-04-04)
The microchip for influenza A subtyping was developed, functioning on a principle "one spot--one subtype". Each spot contains the set of oligonucleotide probes, specific for a particular subtype of hemagglutinin, neuraminidase or matrix gene. Reliability of the proposed chip version
Audu J Natala et al.
Journal of medical entomology, 50(1), 85-93 (2013-02-23)
Amblyomma variegatum F. are obligate hematophagous ectoparasites of livestock that serve as the vectors of Ehrlichia ruminantium (formerly known as Cowdria ruminantium), the causative agent of heartwater disease. In the light of the fact that they are blood-feeding, their salivary

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