PlantSME Plant secondary metabolism enzyme database
Phenylpropanoid portable pathway

Phenylpropanoid portable pathway

Phenylpropanoid pathway definition imported from the 2026-05-17 portable BLAST/HMM package.

Representative Phenylpropanoid Reaction Route
Entry backbone to monolignol/lignin branches. Substrates, products, and condensed structural formulae show representative conversions; resolved reactions are shown as single enzymes, whereas multi-enzyme branches are shown as curated modules. Member counts come from public annotations.
6 curated steps/modules
Entry Backbone And Lignin Direction
01
Substrate
L-Phenylalanine
C9H11NO2
C6H5-CH2-CH(NH2)-COOH
Deamination to form the phenylpropene acid scaffold
Product
trans-Cinnamic acid
C9H8O2
C6H5-CH=CH-COOH
PAL commits the amino-acid substrate to phenylpropanoid metabolism.
02
Substrate
trans-Cinnamic acid
C9H8O2
C6H5-CH=CH-COOH
Para-hydroxylation of the aromatic ring
Product
p-Coumaric acid
C9H8O3
4-HO-C6H4-CH=CH-COOH
C4H/CYP73A introduces the 4-hydroxyl group for downstream CoA activation.
03
Substrate
p-Coumaric acid
C9H8O3
4-HO-C6H4-CH=CH-COOH
Substrate
CoA
C21H36N7O16P3S
CoA-SH
CoA ligation and activation
Product
p-Coumaroyl-CoA
C30H38N7O18P3S
4-HO-C6H4-CH=CH-C(=O)-SCoA
4CL converts the free acid into a thioester used by condensation, acyltransfer, and reduction reactions.
04
Substrate
p-Coumaroyl-CoA
C30H38N7O18P3S
4-HO-C6H4-CH=CH-C(=O)-SCoA
Hydroxylation, acyl transfer, and methylation
Product
Feruloyl-CoA-type intermediates
C31H40N7O19P3S
3-MeO-4-HO-C6H3-CH=CH-C(=O)-SCoA
This segment remodels the p-coumaroyl scaffold into caffeoyl/feruloyl-type intermediates.
05
Substrate
Hydroxycinnamoyl-CoA
C30-31 CoA thioesters
Ar-CH=CH-C(=O)-SCoA
Reduction and S/G monolignol formation
Product
Coniferyl/sinapyl alcohol
C10H12O3 / C11H14O4
Ar-CH=CH-CH2OH
CCR/CAD and related steps route CoA thioesters toward monolignol monomers.
06
Substrate
Monolignols
C9-C11 phenylpropanoids
Ar-CH=CH-CH2OH
Oxidative coupling and polymerization
Product
Lignin polymer
(C9 unit)n
[Ar-C3]n ether/C-C polymer
LAC/POD oxidatively couple monolignols into lignin polymers.
Lineage Distribution
Assignments under this module are distributed across the following plant lineages.
Current lineage filter: Bryophytes. All species, family, module, and gene statistics below have been narrowed to this lineage.
Lineage Summary
Module Gene List
Reset
GeneSpeciesProtein ID
AagrOXFutg000097l0203380.4 anthoceros_agrestis_oxford AagrOXFutg000097l0203380.4
AagrOXFutg000097l0203380.5 anthoceros_agrestis_oxford AagrOXFutg000097l0203380.5
AagrOXFutg000097l0203380.6 anthoceros_agrestis_oxford AagrOXFutg000097l0203380.6
AagrOXFutg000097l0203380.7 anthoceros_agrestis_oxford AagrOXFutg000097l0203380.7
AagrOXFutg000098l0203750.1 anthoceros_agrestis_oxford AagrOXFutg000098l0203750.1
AagrOXFutg000098l0203780.1 anthoceros_agrestis_oxford AagrOXFutg000098l0203780.1
AagrOXFutg000100l0204660.1 anthoceros_agrestis_oxford AagrOXFutg000100l0204660.1
AagrOXFutg000100l0204660.2 anthoceros_agrestis_oxford AagrOXFutg000100l0204660.2
AagrOXFutg000100l0207390.1 anthoceros_agrestis_oxford AagrOXFutg000100l0207390.1
AagrOXFutg000100l0207670.1 anthoceros_agrestis_oxford AagrOXFutg000100l0207670.1
AagrOXFutg000100l0207830.1 anthoceros_agrestis_oxford AagrOXFutg000100l0207830.1
AagrOXFutg000102l0210500.1 anthoceros_agrestis_oxford AagrOXFutg000102l0210500.1
AagrOXFutg000103l0210930.1 anthoceros_agrestis_oxford AagrOXFutg000103l0210930.1
AagrOXFutg000103l0211290.1 anthoceros_agrestis_oxford AagrOXFutg000103l0211290.1
AagrOXFutg000103l0211500.1 anthoceros_agrestis_oxford AagrOXFutg000103l0211500.1
AagrOXFutg000103l0211500.2 anthoceros_agrestis_oxford AagrOXFutg000103l0211500.2
AagrOXFutg000103l0211970.1 anthoceros_agrestis_oxford AagrOXFutg000103l0211970.1
AagrOXFutg000103l0211970.2 anthoceros_agrestis_oxford AagrOXFutg000103l0211970.2
AagrOXFutg000103l0212060.1 anthoceros_agrestis_oxford AagrOXFutg000103l0212060.1
AagrOXFutg000103l0212060.2 anthoceros_agrestis_oxford AagrOXFutg000103l0212060.2
AagrOXFutg000104l0212610.1 anthoceros_agrestis_oxford AagrOXFutg000104l0212610.1
AagrOXFutg000104l0213600.1 anthoceros_agrestis_oxford AagrOXFutg000104l0213600.1
AagrOXFutg000109l0216300.1 anthoceros_agrestis_oxford AagrOXFutg000109l0216300.1
AagrOXFutg000109l0216300.2 anthoceros_agrestis_oxford AagrOXFutg000109l0216300.2
AagrOXFutg000109l0217540.1 anthoceros_agrestis_oxford AagrOXFutg000109l0217540.1
AagrOXFutg000109l0217540.2 anthoceros_agrestis_oxford AagrOXFutg000109l0217540.2
AagrOXFutg000109l0217540.3 anthoceros_agrestis_oxford AagrOXFutg000109l0217540.3
AagrOXFutg000109l0217540.4 anthoceros_agrestis_oxford AagrOXFutg000109l0217540.4
AagrOXFutg000109l0217540.5 anthoceros_agrestis_oxford AagrOXFutg000109l0217540.5
AagrOXFutg000109l0217540.6 anthoceros_agrestis_oxford AagrOXFutg000109l0217540.6