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
litchi_chinensis_LITCHI008530.m1 litchi_chinensis litchi_chinensis_LITCHI008530.m1
litchi_chinensis_LITCHI008533.m1 litchi_chinensis litchi_chinensis_LITCHI008533.m1
litchi_chinensis_LITCHI010781.m1 litchi_chinensis litchi_chinensis_LITCHI010781.m1
litchi_chinensis_LITCHI012858.m1 litchi_chinensis litchi_chinensis_LITCHI012858.m1
litchi_chinensis_LITCHI012859.m1 litchi_chinensis litchi_chinensis_LITCHI012859.m1
litchi_chinensis_LITCHI023510.m1 litchi_chinensis litchi_chinensis_LITCHI023510.m1
litchi_chinensis_LITCHI023511.m1 litchi_chinensis litchi_chinensis_LITCHI023511.m1
litchi_chinensis_LITCHI023517.m1 litchi_chinensis litchi_chinensis_LITCHI023517.m1
litchi_chinensis_LITCHI023519.m1 litchi_chinensis litchi_chinensis_LITCHI023519.m1
lithospermum_erythrorhizon_LE00643.1 lithospermum_erythrorhizon lithospermum_erythrorhizon_LE00643.1
lithospermum_erythrorhizon_LE15226.1 lithospermum_erythrorhizon lithospermum_erythrorhizon_LE15226.1
lithospermum_erythrorhizon_LE15646.1 lithospermum_erythrorhizon lithospermum_erythrorhizon_LE15646.1
lithospermum_erythrorhizon_LE21268.1 lithospermum_erythrorhizon lithospermum_erythrorhizon_LE21268.1
lithospermum_erythrorhizon_LE22208.1 lithospermum_erythrorhizon lithospermum_erythrorhizon_LE22208.1
lithospermum_erythrorhizon_LE22520.1 lithospermum_erythrorhizon lithospermum_erythrorhizon_LE22520.1
lithospermum_erythrorhizon_LE25841.1 lithospermum_erythrorhizon lithospermum_erythrorhizon_LE25841.1
lithospermum_erythrorhizon_LE35298.1 lithospermum_erythrorhizon lithospermum_erythrorhizon_LE35298.1
LmarGWHANWC000000030058560.1 lobularia_maritima LmarGWHANWC000000030058560.1
LmarGWHANWC000000030058570.1 lobularia_maritima LmarGWHANWC000000030058570.1
LmarGWHANWC000000030058580.1 lobularia_maritima LmarGWHANWC000000030058580.1
LmarGWHANWC000000070129540.1 lobularia_maritima LmarGWHANWC000000070129540.1
LmarGWHANWC000000070136910.1 lobularia_maritima LmarGWHANWC000000070136910.1
LmarGWHANWC000000070136920.1 lobularia_maritima LmarGWHANWC000000070136920.1
LmarGWHANWC000000090176250.1 lobularia_maritima LmarGWHANWC000000090176250.1
LmarGWHANWC000000110208960.1 lobularia_maritima LmarGWHANWC000000110208960.1
Lperescaffold_8581|ref00087170261830.1 lolium_perenne Lperescaffold_8581|ref00087170261830.1
LONjap02G0023390.1 lonicera_japonica LONjap02G0023390.1
LONjap04G0004220.1 lonicera_japonica LONjap04G0004220.1
LONjap04G0025920.1 lonicera_japonica LONjap04G0025920.1
LONjap05G0014960.1 lonicera_japonica LONjap05G0014960.1