Betaine reductase explained

Betaine reductase
Ec Number:1.21.4.4

Betaine reductase is an enzyme that catalyzes the chemical reaction

acetyl phosphate + trimethylamine + thioredoxin disulfide

\rightleftharpoons

N,N,N-trimethylglycine + phosphate + thioredoxin

The 3 substrates of this enzyme are acetyl phosphate, trimethylamine, and thioredoxin disulfide, whereas its 3 products are N,N,N-trimethylglycine, phosphate, and thioredoxin.

This enzyme belongs to the family of oxidoreductases, specifically those acting on X-H and Y-H to form an X-Y bond with a disulfide as acceptor. The systematic name of this enzyme class is acetyl-phosphate trimethylamine:thioredoxin disulfide oxidoreductase (N,N,N-trimethylglycine-forming).

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