L-methionine biosynthetic process 'de novo' L-methionine biosynthetic process https://github.com/geneontology/go-ontology/issues/31318 https://github.com/geneontology/go-ontology/issues/31525 2009-12-09T04:34:41Z 'de novo' L-methionine synthesis 'de novo' L-methionine anabolism The chemical reactions and pathways resulting in the formation of L-methionine, the L-enantiomer of (2S)-2-amino-4-(methylsulfanyl)butanoic acid, from simpler components such as L-aspartate or L-homoserine. This process occurs in plants, bacteria, archae and fungi. MetaCyc:PWY-5345 MetaCyc:PWY-5347 biological_process 'de novo' L-methionine biosynthesis 'de novo' L-methionine formation MetaCyc:HSERMETANA-PWY MetaCyc:PWY-7977 mah MetaCyc:HOMOSER-METSYN-PWY MetaCyc:PWY-702 GO:0071266