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N8271

Sigma-Aldrich

α(2→3,6,8,9) Neuraminidase from Arthrobacter ureafaciens

recombinant, expressed in E. coli, buffered aqueous solution

Synonym(s):

Neuraminidase from Arthrobacter ureafaciens, Acyl-neuraminyl Hydrolase, Sialidase

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About This Item

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

recombinant

expressed in E. coli

Quality Level

form

buffered aqueous solution

specific activity

≥135 units/mg protein

mol wt

88 kDa
95 kDa

foreign activity

β-Galactosidase, α-mannosidase, β-hexosaminidase, α-fucosidase, and proteases, none detected

shipped in

wet ice

storage temp.

2-8°C

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Biochem/physiol Actions

Releases α(2→3), α(2→6), α(2→8), and α(2→9)-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 20 mM NaCl.

Preparation Note

Expressed in glycosidase-free hosts.

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Michael Worobey et al.
Nature, 508(7495), 254-257 (2014-02-18)
Zoonotic infectious diseases such as influenza continue to pose a grave threat to human health. However, the factors that mediate the emergence of RNA viruses such as influenza A virus (IAV) are still incompletely understood. Phylogenetic inference is crucial to reconstructing
Nenad Macesic et al.
The Medical journal of Australia, 198(7), 370-372 (2013-04-16)
To review cases of nosocomial influenza and compare the epidemiology, clinical characteristics and outcomes with community-acquired cases. Prospective case series of adults hospitalised with influenza during April - November of 2010 and 2011 using a hospital-based sentinel surveillance system. A
Dominic Meusch et al.
Nature, 508(7494), 61-65 (2014-02-28)
Tripartite Tc toxin complexes of bacterial pathogens perforate the host membrane and translocate toxic enzymes into the host cell, including in humans. The underlying mechanism is complex but poorly understood. Here we report the first, to our knowledge, high-resolution structures
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
Johan Nordholm et al.
The Journal of biological chemistry, 288(15), 10652-10660 (2013-03-01)
Interactions that facilitate transmembrane domain (TMD) dimerization have been identified mainly using synthetic TMDs. Here, we investigated how inherent properties within natural TMDs modulate their interaction strength by exploiting the sequence variation in the nine neuraminidase subtypes (N1-N9) and the

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