Question

Describe in brief the reductive amination reactions for synthesis of amino acids in plants.

Answer 1

Description of the reductive amination reactions for synthesis of amino acids in plants is as follows:

• The reductive amination of alpha-ketoglutarate is catalyzed by glutamate dehydrogenase. It is converted to glutamate.
• In synthesis of amino acids, this reaction occurs.
• Hydroxylation of essential amino acid named phenylalanine synthesizes tyrosine.
• To make RNA and DNA methionine, the required coenzyme is folate.

Answer 2

Reductive amination reaction: In this reaction transaminase enzyme plays a major role.

Explanation:

• The transaminase enzyme which involves the biosynthesis of many alpha amino acid by the reductive amination reaction of an alpha keto acid.
• The first step is the formation of an imine. This is mainly a coupling reaction the carbonyl group is converted into an amine.
• This reaction forms the basis of many pharmaceutical industry. It first reacts and form a hemiaminal species.
• Thus, reductive amination reaction is explained briefly.

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