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
schrenkiella_parvula_SpUn0042_0010.1 schrenkiella_parvula schrenkiella_parvula_SpUn0042_0010.1
Sbirscaffold248_cov3080068600 sclerocarya_birrea Sbirscaffold248_cov3080068600
Sbirscaffold248_cov3080068630 sclerocarya_birrea Sbirscaffold248_cov3080068630
Sbirscaffold4_cov3400114980 sclerocarya_birrea Sbirscaffold4_cov3400114980
Sbirscaffold60061_cov3280153350 sclerocarya_birrea Sbirscaffold60061_cov3280153350
scurrula_parasitica_var._graciliflora_SPA03053 scurrula_parasitica_var_graciliflora scurrula_parasitica_var._graciliflora_SPA03053
scurrula_parasitica_var._graciliflora_SPA03949 scurrula_parasitica_var_graciliflora scurrula_parasitica_var._graciliflora_SPA03949
scurrula_parasitica_var._graciliflora_SPA10449 scurrula_parasitica_var_graciliflora scurrula_parasitica_var._graciliflora_SPA10449
scurrula_parasitica_var._graciliflora_SPA10450 scurrula_parasitica_var_graciliflora scurrula_parasitica_var._graciliflora_SPA10450
scurrula_parasitica_var._graciliflora_SPA20243 scurrula_parasitica_var_graciliflora scurrula_parasitica_var._graciliflora_SPA20243
scurrula_parasitica_var._graciliflora_SPA25601 scurrula_parasitica_var_graciliflora scurrula_parasitica_var._graciliflora_SPA25601
scutellaria_barbata_GWHPAOTP003947 scutellaria_barbata scutellaria_barbata_GWHPAOTP003947
scutellaria_barbata_GWHPAOTP003949 scutellaria_barbata scutellaria_barbata_GWHPAOTP003949
scutellaria_barbata_GWHPAOTP003952 scutellaria_barbata scutellaria_barbata_GWHPAOTP003952
scutellaria_barbata_GWHPAOTP004126 scutellaria_barbata scutellaria_barbata_GWHPAOTP004126
scutellaria_barbata_GWHPAOTP024222 scutellaria_barbata scutellaria_barbata_GWHPAOTP024222
scutellaria_barbata_GWHPAOTP024223 scutellaria_barbata scutellaria_barbata_GWHPAOTP024223
scutellaria_barbata_GWHPAOTP024224 scutellaria_barbata scutellaria_barbata_GWHPAOTP024224
scutellaria_barbata_GWHPAOTP024228 scutellaria_barbata scutellaria_barbata_GWHPAOTP024228
scutellaria_barbata_GWHPAOTP024229 scutellaria_barbata scutellaria_barbata_GWHPAOTP024229
scutellaria_barbata_GWHPAOTP024241 scutellaria_barbata scutellaria_barbata_GWHPAOTP024241
Scer03G0032350.1 secale_cereale Scer03G0032350.1
Scer07G0013240.1 secale_cereale Scer07G0013240.1
Scer07G0016730.1 secale_cereale Scer07G0016730.1
Smoescaffold_260105630.1 selaginella_moellendorffii Smoescaffold_260105630.1
XP_011074323.1 sesamum_indicum XP_011074323.1
XP_011078470.1 sesamum_indicum XP_011078470.1
XP_011088611.1 sesamum_indicum XP_011088611.1
XP_011092466.1 sesamum_indicum XP_011092466.1
Sitascaffold_90335910.1 setaria_italica Sitascaffold_90335910.1