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
Cichscaffold_170065950.3 citrus_ichangensis Cichscaffold_170065950.3
Cichscaffold_170065950.4 citrus_ichangensis Cichscaffold_170065950.4
Cichscaffold_2090100360.1 citrus_ichangensis Cichscaffold_2090100360.1
Cichscaffold_2090100490.1 citrus_ichangensis Cichscaffold_2090100490.1
Cichscaffold_220105720.1 citrus_ichangensis Cichscaffold_220105720.1
Cichscaffold_220105960.1 citrus_ichangensis Cichscaffold_220105960.1
Cichscaffold_5510242750.1 citrus_ichangensis Cichscaffold_5510242750.1
Cichscaffold_750285250.1 citrus_ichangensis Cichscaffold_750285250.1
Cichscaffold_810296510.1 citrus_ichangensis Cichscaffold_810296510.1
Cichscaffold_810296520.1 citrus_ichangensis Cichscaffold_810296520.1
citrus_limon_GWHPCBFQ000616.1 citrus_limon citrus_limon_GWHPCBFQ000616.1
citrus_limon_GWHPCBFQ003653.1 citrus_limon citrus_limon_GWHPCBFQ003653.1
citrus_limon_GWHPCBFQ016006.1 citrus_limon citrus_limon_GWHPCBFQ016006.1
citrus_limon_GWHPCBFQ019647.1 citrus_limon citrus_limon_GWHPCBFQ019647.1
citrus_limon_GWHPCBFQ023755.1 citrus_limon citrus_limon_GWHPCBFQ023755.1
citrus_limon_GWHPCBFQ023758.1 citrus_limon citrus_limon_GWHPCBFQ023758.1
citrus_limon_GWHPCBFQ023759.1 citrus_limon citrus_limon_GWHPCBFQ023759.1
citrus_limon_GWHPCBFQ023762.1 citrus_limon citrus_limon_GWHPCBFQ023762.1
citrus_limon_GWHPCBFQ023763.1 citrus_limon citrus_limon_GWHPCBFQ023763.1
citrus_limon_GWHPCBFQ027182.1 citrus_limon citrus_limon_GWHPCBFQ027182.1
citrus_limon_GWHPCBFQ027183.1 citrus_limon citrus_limon_GWHPCBFQ027183.1
citrus_limon_GWHPCBFQ050528.1 citrus_limon citrus_limon_GWHPCBFQ050528.1
citrus_limon_GWHPCBFQ053592.1 citrus_limon citrus_limon_GWHPCBFQ053592.1
citrus_limon_GWHPCBFQ053614.1 citrus_limon citrus_limon_GWHPCBFQ053614.1
citrus_limon_GWHPCBFQ059960.1 citrus_limon citrus_limon_GWHPCBFQ059960.1
Cmedscaffold_135120040720.1 citrus_medica Cmedscaffold_135120040720.1
Cmedscaffold_1440048300.1 citrus_medica Cmedscaffold_1440048300.1
Cmedscaffold_1440048300.2 citrus_medica Cmedscaffold_1440048300.2
Cmedscaffold_1440048300.3 citrus_medica Cmedscaffold_1440048300.3
Cmedscaffold_2120101300.1 citrus_medica Cmedscaffold_2120101300.1