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
Asin02G0003070 aquilaria_sinensis Asin02G0003070
Asin02G0024770 aquilaria_sinensis Asin02G0024770
Asin04G0025650 aquilaria_sinensis Asin04G0025650
Asin05G0005290 aquilaria_sinensis Asin05G0005290
Asin05G0009410 aquilaria_sinensis Asin05G0009410
Acoe_02G0024660.1 aquilegia_coerulea Acoe_02G0024660.1
Acoe_05G0009550.1 aquilegia_coerulea Acoe_05G0009550.1
Acoe_06G0031800.1 aquilegia_coerulea Acoe_06G0031800.1
arabidopsis_arenosa_CAE5962569.1 arabidopsis_arenosa arabidopsis_arenosa_CAE5962569.1
arabidopsis_arenosa_CAE6003241.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6003241.1
arabidopsis_arenosa_CAE6117793.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6117793.1
arabidopsis_arenosa_CAE6117805.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6117805.1
arabidopsis_arenosa_CAE6117831.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6117831.1
arabidopsis_arenosa_CAE6117855.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6117855.1
arabidopsis_arenosa_CAE6153793.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6153793.1
arabidopsis_arenosa_CAE6193811.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6193811.1
AhalFJVB01001326 arabidopsis_halleri AhalFJVB01001326
AhalFJVB01001502 arabidopsis_halleri AhalFJVB01001502
Alyrscaffold_20060560.1 arabidopsis_lyrata Alyrscaffold_20060560.1
Alyrscaffold_40127650.1 arabidopsis_lyrata Alyrscaffold_40127650.1
Alyrscaffold_60218160.1 arabidopsis_lyrata Alyrscaffold_60218160.1
Alyrscaffold_60218160.2 arabidopsis_lyrata Alyrscaffold_60218160.2
Alyrscaffold_60218170.1 arabidopsis_lyrata Alyrscaffold_60218170.1
Alyrscaffold_60218180.1 arabidopsis_lyrata Alyrscaffold_60218180.1
Alyrscaffold_60218190.1 arabidopsis_lyrata Alyrscaffold_60218190.1
Alyrscaffold_60218200.1 arabidopsis_lyrata Alyrscaffold_60218200.1
Alyrscaffold_70237760.1 arabidopsis_lyrata Alyrscaffold_70237760.1
Alyrscaffold_70247970.1 arabidopsis_lyrata Alyrscaffold_70247970.1
Alyrscaffold_70262990.1 arabidopsis_lyrata Alyrscaffold_70262990.1
ara_suecica_KAG7544685.1 arabidopsis_suecica ara_suecica_KAG7544685.1