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04529

Sigma-Aldrich

Nitrilase

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

Synonym(s):

Nitrile aminohydrolase

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About This Item

CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

recombinant

expressed in E. coli

form

crystals
powder

specific activity

≥2.0 U/mg

mol wt

41 kDa

storage temp.

2-8°C

General description

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.

Biochem/physiol Actions

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.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Unit Definition

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

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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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.
Ahmed Kamal et al.
Journal of microbiology and biotechnology, 21(1), 37-42 (2011-02-09)
A new versatile acrylonitrile-bioconverting strain isolated from a petroleum-contaminated sludge sample and identified as Rhodococcus ruber AKSH-84 was used for optimization of medium and biotransformation conditions for nitrilase activity to produce acrylic acid. A simple and rapid HPLC protocol was
Shivani Jamwal et al.
International journal of biological macromolecules, 131, 117-126 (2019-03-08)
Immobilization of enzymes to improve their catalytic properties is an attractive protocol which makes them suitable candidates to meet various industrial demands. Present study describes the synthesis of new acryloyl crosslinked cellulose dialdehyde (ACCD) for nitrilase immobilization. Nitrilase was immobilized
Alena Petříčková et al.
Applied microbiology and biotechnology, 93(4), 1553-1561 (2011-09-06)
Nitrilases from Aspergillus niger CBS 513.88, A. niger K10, Gibberella moniliformis, Neurospora crassa OR74A, and Penicillium marneffei ATCC 18224 were expressed in Escherichia coli BL21-Gold (DE3) after IPTG induction. N. crassa nitrilase exhibited the highest yield of 69,000 U L(-1)
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

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