Where could you find the inhibition mechanisms in E. coli of these amino acids L-valine L-isoleucine L-leucine L-lysine L-threonine L-phenolalanine and selenium-methionine?
In E. coli, the inhibition mechanisms of amino acid biosynthesis involve feedback inhibition. For L-valine, L-isoleucine, and L-leucine biosynthesis, an intermediate product (e.g., alpha-keto acid) typically acts as an inhibitor. L-lysine biosynthesis is inhibited by lysine itself, while threonine biosynthesis is feedback inhibited by isoleucine. Phenylalanine biosynthesis can be inhibited by accumulating levels of phenylalanine. Selenium-methionine incorporation can also be regulated through feedback inhibition mechanisms.