Novel rhodococcus bacterium, nitrilase gene, nitryl...

C - Chemistry – Metallurgy – 12 – N

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C12N 15/09 (2006.01) C07K 14/37 (2006.01) C12N 1/21 (2006.01) C12N 9/78 (2006.01) C12N 15/55 (2006.01) C12P 7/40 (2006.01) C12P 13/02 (2006.01)

Patent

CA 2356741

A novel rhodococcus and a process for producing carboxylic acids by hydrolyzing cyano group of nitrile compounds by using this bacterium. A process for producing carboxylic acids (in particular, cyanocarboxylic acids) by using transformants having been transformed by plasmids containing rhodococcus-origin nitrilase gene, nitrilehydratase gene and amidase gene showing an excellent site-selectivity to cyano group of aromatic polynitrile compounds; these transformants, plasmids, genes and a process for producing enzymes by using these transformants; and the enzymes thus obtained. The carboxylic acids (in particular, cyanocarboxylic acids) thus obtained are useful as starting materials in the synthesis of drugs, pesticides, dyes and other chemical products.

L'invention concerne un nouveau rhodocoque ainsi qu'un procédé de production d'acides carboxyliques, consistant à hydrolyser le groupe cyano de composés nitriles, au moyen de cette bactérie. L'invention concerne un procédé de production d'acides carboxyliques (notamment des acides cyanocarboxyliques) consistant à utiliser des transformants obtenus au moyen de plasmides contenant le gène de la nitrilase, le gène de la nitrilehydratase et le gène de l'amidase, lesquels proviennent du rhodocoque et démontrent une excellente sélectivité de site à l'égard du groupe cyano de composés polynitriles aromatiques. L'invention concerne ces transformants, plasmides, gènes, ainsi qu'un procédé de production d'enzymes à l'aide de ces transformants, de même que les enzymes ainsi obtenues. Les acides carboxyliques (notamment les acides cyanocarboxyliques) obtenus par les procédés ci-dessus sont utiles en tant que matériaux de départ dans la synthèse de médicaments, pesticides, colorants et autres produits chimiques.

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