Figure 1.

Simplified phenylpropanoid biosynthesis pathway (PAL: phenyl ammonia lyase, C4H: cinnamate 4-hydroxylase, 4CL: 4-coumaroyl CoA ligase, HCT: hydroxycinnamoyl transferase, C3’H: cinnamoyl ester 3’-hydroxylase), C2’H: p -coumaroyl CoA 2’-hydroxylase, PT: prenyltransferase, MS: marmesin synthase, PS: psoralen synthase, P5H: psoralen 5-hydroxylase, B o MT: bergaptol o -methyltransferase, P8H: psoralen 8-hydroxylase, X o MT: xanthotoxol o -methyltransferase, F6’H: feruloyl CoA hydroxylase, CCoAOMT: caffeoyl CoA O-methyltransferase Black dashed arrows: multistep reaction.

Karamat et al. BMC Plant Biology 2012 12:152   doi:10.1186/1471-2229-12-152
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