Cyanoalanine nitrilase

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cyanoalanine nitrilase
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EC no. 3.5.5.4
CAS no. 85638-44-4
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In enzymology, a cyanoalanine nitrilase (EC 3.5.5.4) is an enzyme that catalyzes the chemical reaction

3-cyano-L-alanine + 2 H2O L-aspartate + NH3

Thus, the two substrates of this enzyme are 3-cyano-L-alanine and H2O, whereas its two products are L-aspartate and NH3.

This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in nitriles. The systematic name of this enzyme class is 3-cyano-L-alanine aminohydrolase. This enzyme is also called beta-cyanoalanine nitrilase. This enzyme participates in cyanoamino acid metabolism.

Related Research Articles

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Nitrilase enzymes catalyse the hydrolysis of nitriles to carboxylic acids and ammonia, without the formation of "free" amide intermediates. Nitrilases are involved in natural product biosynthesis and post translational modifications in plants, animals, fungi and certain prokaryotes. Nitrilases can also be used as catalysts in preparative organic chemistry. Among others, nitrilases have been used for the resolution of racemic mixtures. Nitrilase should not be confused with nitrile hydratase which hydrolyses nitriles to amides. Nitrile hydratases are almost invariably co-expressed with an amidase, which converts the amide to the carboxylic acid. Consequently, it can sometimes be difficult to distinguish nitrilase activity from nitrile hydratase plus amidase activity.

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