2.3.3.13 3-methylbutanol biosynthesis (engineered) - - PWY-6871 2.3.3.13 Biosynthesis of secondary metabolites - 01110 - 2.3.3.13 L-leucine biosynthesis - - LEUSYN-PWY 2.3.3.13 leucine metabolism leucine metabolism - - 2.3.3.13 Metabolic pathways - 01100 - 2.3.3.13 Pyruvate metabolism - 00620 - 2.3.3.13 Valine, leucine and isoleucine biosynthesis - 00290 -