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
AagrBONNSc2ySwM_117G0034300 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0034300
AagrBONNSc2ySwM_117G0034320 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0034320
AagrBONNSc2ySwM_117G0034340 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0034340
AagrBONNSc2ySwM_117G0034370 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0034370
AagrBONNSc2ySwM_117G0034410 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0034410
AagrBONNSc2ySwM_117G0034550 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0034550
AagrBONNSc2ySwM_117G0034560 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0034560
AagrBONNSc2ySwM_117G0034640 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0034640
AagrBONNSc2ySwM_117G0037100 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0037100
AagrBONNSc2ySwM_117G0037250 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0037250
AagrBONNSc2ySwM_117G0040560 anthoceros_agrestis_bonn AagrBONNSc2ySwM_117G0040560
AagrBONNSc2ySwM_228G0000460 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0000460
AagrBONNSc2ySwM_228G0001130 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0001130
AagrBONNSc2ySwM_228G0003550 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0003550
AagrBONNSc2ySwM_228G0003580 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0003580
AagrBONNSc2ySwM_228G0003620 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0003620
AagrBONNSc2ySwM_228G0003830 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0003830
AagrBONNSc2ySwM_228G0005080 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0005080
AagrBONNSc2ySwM_228G0006610 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0006610
AagrBONNSc2ySwM_228G0007180 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0007180
AagrBONNSc2ySwM_228G0010230 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0010230
AagrBONNSc2ySwM_228G0012400 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0012400
AagrBONNSc2ySwM_228G0012580 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0012580
AagrBONNSc2ySwM_228G0014250 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0014250
AagrBONNSc2ySwM_228G0016120 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0016120
AagrBONNSc2ySwM_228G0022700 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0022700
AagrBONNSc2ySwM_228G0022840 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0022840
AagrBONNSc2ySwM_228G0023850 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0023850
AagrBONNSc2ySwM_228G0024130 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0024130
AagrBONNSc2ySwM_228G0024560 anthoceros_agrestis_bonn AagrBONNSc2ySwM_228G0024560