si_0837 Flavanone_biosynthesis trans-cinnamate 4-monooxygenase si_0837 Flavanone_biosynthesis 4-coumarate--CoA ligase 1 (EC 6.2.1.12) si_0837 Flavanone_biosynthesis Chalcone synthase (EC 2.3.1.74) si_0837 Flavanone_biosynthesis Chalcone--flavonone isomerase (EC 5.5.1.6) si_0837 Flavanone_biosynthesis Flavanone-3-hydroxylase (EC 1.14.11.9)