obsolete L-methionine catabolic process to 3-methylthiopropanoate https://github.com/geneontology/go-ontology/issues/30202 true GO:0000954 biological_process This term was obsoleted because it represents a specific instance of a pathway that should be captured as a GO-CAM model. OBSOLETE. The chemical reactions and pathways involving the catabolism of amino acids to produce carboxylic acids with one carbon less than the starting amino acid. In S. cerevisiae, this is known to occur for leucine, isoleucine, valine, methionine, phenylalanine, tyrosine, or tryptophan. When L-methionine is used as the substrate, 3-methylthiopropanoate is produced. Often referred to as the Ehrlich pathway, these reactions generally occur during fermentation to produce a variety of carboxylic acids, sometimes collectively referred to as fusel acids. Depending on the redox state of the cells, alcohol derivatives may be produced instead of carboxylic acids. L-methionine catabolic process