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
CcamCcam0.32_scaffold228b0170670.1 cuscuta_campestris CcamCcam0.32_scaffold228b0170670.1
CcamCcam0.32_scaffold770411280.1 cuscuta_campestris CcamCcam0.32_scaffold770411280.1
Cpartig000000420001340.v1.176 cyanophora_paradoxa Cpartig000000420001340.v1.176
Ccavscaffold_110026260 cyathodium_cavernarum Ccavscaffold_110026260
Ccavscaffold_760206180 cyathodium_cavernarum Ccavscaffold_760206180
cymbidium_goeringii_g320 cymbidium_goeringii cymbidium_goeringii_g320
cymbidium_goeringii_g36938 cymbidium_goeringii cymbidium_goeringii_g36938
cymbidium_goeringii_g37188 cymbidium_goeringii cymbidium_goeringii_g37188
cymbidium_goeringii_g5976 cymbidium_goeringii cymbidium_goeringii_g5976
cymbidium_goeringii_g5977 cymbidium_goeringii cymbidium_goeringii_g5977
cymbidium_goeringii_g5980 cymbidium_goeringii cymbidium_goeringii_g5980
cymbidium_goeringii_g5981 cymbidium_goeringii cymbidium_goeringii_g5981
cymbidium_goeringii_g6043 cymbidium_goeringii cymbidium_goeringii_g6043
cymbidium_goeringii_g64960 cymbidium_goeringii cymbidium_goeringii_g64960
Ccarscaffold_12840031340.1 cynara_cardunculus Ccarscaffold_12840031340.1
Ccarscaffold_130033060.1 cynara_cardunculus Ccarscaffold_130033060.1
Ccarscaffold_2230092320.1 cynara_cardunculus Ccarscaffold_2230092320.1
Ccarscaffold_2330097270.1 cynara_cardunculus Ccarscaffold_2330097270.1
Ccarscaffold_25300106180.1 cynara_cardunculus Ccarscaffold_25300106180.1
Ccarscaffold_25300106190.1 cynara_cardunculus Ccarscaffold_25300106190.1
Ccarscaffold_7220229610.1 cynara_cardunculus Ccarscaffold_7220229610.1
cyperus_esculentus_CESC_18367 cyperus_esculentus cyperus_esculentus_CESC_18367
DJ01Gene00802 daemonorops_jenkinsiana DJ01Gene00802
DJ01Gene05454 daemonorops_jenkinsiana DJ01Gene05454
DJ01Gene05455 daemonorops_jenkinsiana DJ01Gene05455
DJ01Gene31056 daemonorops_jenkinsiana DJ01Gene31056
DJ01Gene31057 daemonorops_jenkinsiana DJ01Gene31057
DJ01Gene31058 daemonorops_jenkinsiana DJ01Gene31058
DJ01Gene66930 daemonorops_jenkinsiana DJ01Gene66930
dalbergia_odorifera_evm.model.scaffold_340.44 dalbergia_odorifera dalbergia_odorifera_evm.model.scaffold_340.44