PlantSME Plant secondary metabolism enzyme database
SQE

SQE

Triterpenoid/sterol-precursor shared module: SQS/SQE/OSC-family cyclases build the triterpenoid scaffold feeding sterol biosynthesis; overlap between terpenoid and steroid contexts is expected.

Atlas summary family SQE.

Lineage Coverage
Detected in 773 of 789 public species; click a lineage to inspect its species list.
Algae
Bryophytes
Lycophytes/Ferns
Gymnosperms
Basal angiosperms
Monocots
Eudicots
Species Distribution
Fragaria ananassa
Fragaria chiloensis
Rosa multiflora
Gossypium raimondii
Related Modules
Steroid pathway
Pathway Position Map
Pathways are arranged by literature-curated biosynthetic stages and highlight the current enzyme family; branched pathways are grouped by stage rather than forced into one linear reaction chain.
Curated order
Steroid pathway 4569 current-family members Du et al. 2022; Zebosi et al. 2024
Sterol precursor formation
SQS/FDFT1 4389 SQE 4569 CAS 35857
Phytosterol backbone
SMT1/SMT2/SMT3 27781 SMO1/SMO2 4067 CPI1 1261 CYP51G1 190 FK 1234 HYD1 1364 DWF7 1524 DWF5 888 DWF1 1689
Brassinosteroid branch
DET2 1316 DWF4/CYP90B1 290 CPD/CYP90A1 103 ROT3/CYP90C1 193 CYP90D1 142 BR6OX1/CYP85A1 40 BR6OX2/CYP85A2 68
Family Gene List
GeneSpeciesProtein ID
eruca_sativa_CAH8320330.1 eruca_sativa eruca_sativa_CAH8320330.1
eruca_sativa_CAH8320559.1 eruca_sativa eruca_sativa_CAH8320559.1
eruca_sativa_CAH8342451.1 eruca_sativa eruca_sativa_CAH8342451.1
eruca_sativa_CAH8343088.1 eruca_sativa eruca_sativa_CAH8343088.1
eruca_sativa_CAH8343099.1 eruca_sativa eruca_sativa_CAH8343099.1
eruca_sativa_CAH8344583.1 eruca_sativa eruca_sativa_CAH8344583.1
eruca_sativa_CAH8352077.1 eruca_sativa eruca_sativa_CAH8352077.1
eruca_sativa_CAH8355898.1 eruca_sativa eruca_sativa_CAH8355898.1
eruca_sativa_CAH8357599.1 eruca_sativa eruca_sativa_CAH8357599.1
eruca_sativa_CAH8360165.1 eruca_sativa eruca_sativa_CAH8360165.1
eruca_sativa_CAH8362997.1 eruca_sativa eruca_sativa_CAH8362997.1
erysimum_cheiranthoides_Erche02g042080.1.mRNA1.mrna1 erysimum_cheiranthoides erysimum_cheiranthoides_Erche02g042080.1.mRNA1.mrna1
erysimum_cheiranthoides_Erche03g024520.1.mRNA1.mrna1 erysimum_cheiranthoides erysimum_cheiranthoides_Erche03g024520.1.mRNA1.mrna1
erysimum_cheiranthoides_Erche03g024530.1.mRNA1.mrna1 erysimum_cheiranthoides erysimum_cheiranthoides_Erche03g024530.1.mRNA1.mrna1
erysimum_cheiranthoides_Erche04g008770.1.mRNA1.mrna1 erysimum_cheiranthoides erysimum_cheiranthoides_Erche04g008770.1.mRNA1.mrna1
erysimum_cheiranthoides_Erche07g033960.1.mRNA1.mrna1 erysimum_cheiranthoides erysimum_cheiranthoides_Erche07g033960.1.mRNA1.mrna1
erythranthe_guttata_Migut.B00080.1.p erythranthe_guttata erythranthe_guttata_Migut.B00080.1.p
erythranthe_guttata_Migut.C00442.1.p erythranthe_guttata erythranthe_guttata_Migut.C00442.1.p
erythranthe_guttata_Migut.N01115.1.p erythranthe_guttata erythranthe_guttata_Migut.N01115.1.p
Egra06G0002140.1 eucalyptus_grandis Egra06G0002140.1
Egra06G0002140.2 eucalyptus_grandis Egra06G0002140.2
Egra06G0019720.1 eucalyptus_grandis Egra06G0019720.1
Egra06G0019730.1 eucalyptus_grandis Egra06G0019730.1
Egra09G0005300.1 eucalyptus_grandis Egra09G0005300.1
Egra09G0011800.1 eucalyptus_grandis Egra09G0011800.1
Egra09G0021320.1 eucalyptus_grandis Egra09G0021320.1
Egra10G0025950.1 eucalyptus_grandis Egra10G0025950.1
Egrascaffold_45870016000.1 eucalyptus_grandis Egrascaffold_45870016000.1
EulmGWHAAAL000000010001230.1 eucommia_ulmoides EulmGWHAAAL000000010001230.1
EulmGWHAAAL000000280035050.1 eucommia_ulmoides EulmGWHAAAL000000280035050.1