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. 2006 Jan;188(2):609–618. doi: 10.1128/JB.188.2.609-618.2006

FIG. 5.

FIG. 5.

Extended pathway for methionine and isoleucine biosynthesis in C. glutamicum. In addition to the reactions known before, the newly found side reactions of cystathionine-β-synthase (MetB) and cystathionine-β-lyase (MetC) leading to the formation and cleavage of homolanthionine, respectively, are shown. Further enzymes involved are MetA (homoserine transacetylase) and MetZ (O-acetylhomoserine sulfhydrolase).