2.5.1.65 Biosynthesis of secondary metabolites - 01110 - 2.5.1.65 Cysteine and methionine metabolism - 00270 - 2.5.1.65 cysteine metabolism cysteine metabolism - - 2.5.1.65 L-cysteine biosynthesis IX (Trichomonas vaginalis) - - PWY-8010 2.5.1.65 L-cysteine biosynthesis VIII (Thermococcus kodakarensis) - - PWY-8009 2.5.1.65 Metabolic pathways - 01100 - 2.5.1.65 Microbial metabolism in diverse environments - 01120 - 2.5.1.65 Sulfur metabolism - 00920 -