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There are several Akabori amino acid reactions, which are named after Shirō Akabori (Japanese: 赤堀 四郎) (1900–1992), a Japanese chemist. In the first reaction, an α- amino acid is oxidised and undergoes decarboxylation to give an aldehyde at the former α position by heating with oxygen in the presence of a reducing sugar .
Codon–amino acids mappings may be the biological information system at the primordial origin of life on Earth. [122] While amino acids and consequently simple peptides must have formed under different experimentally probed geochemical scenarios, the transition from an abiotic world to the first life forms is to a large extent still unresolved ...
The commercial production of amino acids usually relies on mutant bacteria that overproduce individual amino acids using glucose as a carbon source. Some amino acids are produced by enzymatic conversions of synthetic intermediates. 2-Aminothiazoline-4-carboxylic acid is an intermediate in the industrial synthesis of L-cysteine for example.
The German chemist Adolph Strecker discovered the series of chemical reactions that produce an amino acid from an aldehyde or ketone. [9] [10] Using ammonia or ammonium salts in this reaction gives unsubstituted amino acids. In the original Strecker reaction acetaldehyde, ammonia, and hydrogen cyanide combined to form after hydrolysis alanine ...
The Urech hydantoin synthesis is the chemical reaction of amino acids with potassium cyanate and hydrochloric acid to give hydantoins. [ 1 ] [ 2 ] The Urech hydantoin synthesis
Aminotransfer reaction between an amino acid and an alpha-keto acid. Transamination is a chemical reaction that transfers an amino group to a ketoacid to form new amino acids.This pathway is responsible for the deamination of most amino acids. This is one of the major degradation pathways which convert essential amino acids to non-essential ...
Four key cofactors are required for the reaction catalyzed by the lysine 2,3-aminomutase enzyme. They are: S-Adenosyl methionine (SAM): Helps generate the radical intermediate by borrowing an electron. [5] Pyridoxal phosphate (PLP): Responsible for binding of the amino acid during reaction. The pi-system of this molecule facilitates radical ...
In 1952 he reported a method for determination of C-terminal amino acids in proteins by their reaction with hydrazine. In this case, all amino acids (except the C-terminal one) are transformed into hydrazides. [4] In 1955 he received the prize of Japanese Academy of Sciences and ten years later, the Japanese Order of Culture.