The first step of citrinin biosynthesis in fungi is the binding of citrinin synthase to the starting compound, a thiol ester.
2.
Each monomer of Human alpha-2-macroglobulin is composed of many functional domains, including macroglobulin domains, a thiol ester-containing domain and a receptor-binding domain.
3.
Two additional events occur as a consequence of bait region cleavage, namely ( i ) a h-cysteinyl-g-glutamyl thiol ester of the ?2-macroglobulin becomes highly reactive and ( ii ) a major conformational change exposes a conserved COOH-terminal receptor binding domain.
4.
Three examples of these reactions are the activity of coenzyme A ( CoA ) transferase, which transfers thiol esters, the action of N-acetyltransferase, which is part of the pathway that metabolizes tryptophan, and the regulation of pyruvate dehydrogenase ( PDH ), which converts pyruvate to acetyl CoA . Transferases are also utilized during translation.
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