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Key Documents

04529

Sigma-Aldrich

Nitrilase

recombinant, expressed in E. coli, ≥2.0 U/mg

Synonyme(s) :

Nitrile aminohydrolase

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About This Item

Numéro CAS:
Numéro de classification (Commission des enzymes):
Numéro MDL:
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Produit recombinant

expressed in E. coli

Niveau de qualité

Forme

crystals
powder

Activité spécifique

≥2.0 U/mg

Poids mol.

41 kDa

Température de stockage

2-8°C

Description générale

Nitrilase belongs to the C-N hydrolase superfamily. It possesses the catalytic triad motifs: glutamate, lysine, and cysteine and are distributed in fungi, plants, and animals.The isoelectric point (pI) of this protein is 8.1. Native polyacrylamide gel electrophoresis (PAGE).

Application

Nitrilase may be used for immobilization on acryloyl crosslinked cellulose dialdehyde (ACCD) for catalytic activity studies.

Actions biochimiques/physiologiques

Nitrilases catalyze the liberation of ammonia and the formation of carboxylic acid from the nitriles. The oligomeric structural organization of nitrilase is crucial for its functionality. It displays broad substrate specificity.

Conditionnement

Bottomless glass bottle. Contents are inside inserted fused cone.

Définition de l'unité

1 U corresponds to the amount of enzyme which liberates 1 μmol ammonia per minute at pH 7.2 and 25°C with the conversion of acrylonitrile to acrylic acid

Pictogrammes

Health hazard

Mention d'avertissement

Danger

Mentions de danger

Conseils de prudence

Classification des risques

Resp. Sens. 1 - Skin Sens. 1

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Pablo Soriano-Maldonado et al.
Applied and environmental microbiology, 77(16), 5761-5769 (2011-06-28)
Formamidases (EC 3.5.1.49) are poorly characterized proteins. In spite of this scarce knowledge, ammonia has been described as playing a central role in the pathogenesis of human pathogens such as Helicobacter pylori, for which formamidase has been shown to participate
Zhi-Qiang Liu et al.
PloS one, 8(6), e67197-e67197 (2013-07-05)
In this study, several nitrilase genes from phylogenetically distinct organisms were expressed and purified in E. coli in order to study their ability to mediate the biotransformation of nitriles. We identified three nitrilases: Acidovorax facilis nitrilase (AcN); Alcaligenes fecalis nitrilase
Y V D Nageshwar et al.
Bioprocess and biosystems engineering, 34(5), 515-523 (2010-12-29)
Microbial nitrilases are biocatalysts of interest and the enzyme produced using various inducers exhibits altered substrate specificity, which is of great interest in bioprocess development. The aim of the present study is to investigate the nitrilase-producing Alcaligenes faecalis MTCC 10757
Zhi-Jun Zhang et al.
Journal of biotechnology, 152(1-2), 24-29 (2011-01-26)
The enantioselective hydrolysis of mandelonitrile with whole cells of a recombinant Escherichia coli expressing nitrilase activity was severely inhibited by the substrate at high concentrations (>300mM), which resulted in a low yield of the target product (R)-(-)-mandelic acid. To relieve
Joanna E Raczynska et al.
Journal of structural biology, 173(2), 294-302 (2010-11-26)
The nitrilase superfamily is a large and diverse superfamily of enzymes that catalyse the cleavage of various types of carbon-nitrogen bonds using a Cys-Glu-Lys catalytic triad. Thermoactive nitrilase from Pyrococcus abyssi (PaNit) hydrolyses small aliphatic nitriles like fumaro- and malononitryl.

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