Abstract:
γ-Glu-Val synthetase suitable for generating γ-Glu-Val, and a method for producing γ-Glu-Val-Gly using the same are provided. By using γ-Glu-Val synthetase showing a ratio of γ-glutamylvaline synthetase activity to γ-glutamylglycine synthetase activity of 2.0 or higher, such as γ-Glu-Val synthetase of Kocuria rosea (AJ3132), γ-Glu-Val-Gly is produced from Glu, Val, and Gly as raw materials.
Abstract:
A method for producing γ-Glu-Val-Gly comprising the step of reacting Val-Gly with a γ-glutamyl group donor in the presence of a γ-glutamyltransferase, a microorganism containing the enzyme, or a processed product thereof to generate γ-Glu-Val-Gly, wherein the γ-glutamyltransferase consists of a large subunit and a small subunit, and the small subunit has a specific mutation.
Abstract:
A method for producing benzaldehyde is provided. Benzaldehyde is produced by a method including a step of using amino acid deaminase (AAD), 4-hydroxymandelate synthase (HMAS), (S)-mandelate dehydrogenase (SMDH), and benzoylformate decarboxylase (BFDC) over a time period, wherein the producing step is carried out in the presence of catalase during a portion of said time period.
Abstract:
A mutant glutamate-cysteine ligase (GSHA) suitable for generating γ-Glu-Val, and a method for producing γ-Glu-Val-Gly using the same are provided. γ-Glu-Val is produced by using a mutant GSHA having a specific mutation with Glu and Val as raw materials, and γ-Glu-Val-Gly is further produced by using γ-Glu-Val and Gly as raw materials. γ-Glu-Val-Gly is produced by using a mutant GSHA having a specific mutation with Glu, Val, and Gly as raw materials.
Abstract:
A mutant glutamate-cysteine ligase (GSHA) suitable for generating γ-Glu-Val, and a method for producing γ-Glu-Val-Gly using the same are provided. γ-Glu-Val is produced by using a mutant GSHA having a specific mutation with Glu and Val as raw materials, and γ-Glu-Val-Gly is further produced by using γ-Glu-Val and Gly as raw materials. γ-Glu-Val-Gly is produced by using a mutant GSHA having a specific mutation with Glu, Val, and Gly as raw materials.
Abstract:
A method for producing γ-Glu-Val-Gly comprising the step of reacting Val-Gly with a γ-glutamyl group donor in the presence of a γ-glutamyltransferase, a microorganism containing the enzyme, or a processed product thereof to generate γ-Glu-Val-Gly, wherein the γ-glutamyltransferase consists of a large subunit and a small subunit, and the small subunit has a specific mutation.
Abstract:
A method efficiently produces a compound containing an N-acyl-amino group by an enzymatic method. Specifically, a method of producing a compound containing an N-acyl-amino group includes producing the compound containing an N-acyl-amino group by reacting a compound containing an amino group with a compound containing a carboxyl group in the presence of an enzyme having an ability to bond a carboxyl group and an amino group in an ATP dependent manner to form an amide bond.
Abstract:
A microorganism useful as an expression host for γ-Glu-Val synthetase and a method for producing γ-Glu-Val-Gly using γ-Glu-Val synthetase expressed in the microorganism are provided. By using γ-Glu-Val synthetase expressed in a bacterium, such as Escherichia bacteria, modified so that the activity of a protein encoded by a ybdK gene (YBDIQ is reduced as an expression host, γ-Glu-Val-Gly is produced (Yom Glu, Val, and Gly as raw materials.
Abstract:
A method efficiently produces a compound containing an N-acyl-amino group by an enzymatic method. Specifically, a method of producing a compound containing an N-acyl-amino group includes producing the compound containing an N-acyl-amino group by reacting a compound containing an amino group with a compound containing a carboxyl group in the presence of an enzyme having an ability to bond a carboxyl group and an amino group in an ATP dependent manner to form an amide bond.
Abstract:
Described herein is an enzyme useful for producing a target peptide, capable of producing the target peptide without requiring ATP. More specifically, provided herein is a modified enzyme includes an amino acid sequence such as a modified amino acid sequence including a mutation of one or more of the following amino acid residues: E81, I127, I136, T139, F140, G142, W143, I147, I181, I201, Q219, T229, M244, A249, P255, E256, I260, S293, N294, Y295, and I299 in an amino acid sequence of SEQ ID NO: 1, and
having the following property (a) or (b) enhanced relative to an enzyme of the amino acid sequence of SEQ ID NO: 1: (a) imidazole dipeptide production activity; or (b) thermal stability.