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
ceriops_zippeliana_evm.model.Scaffold_18_RagTag.260 ceriops_zippeliana ceriops_zippeliana_evm.model.Scaffold_18_RagTag.260
ceriops_zippeliana_evm.model.Scaffold_18_RagTag.55 ceriops_zippeliana ceriops_zippeliana_evm.model.Scaffold_18_RagTag.55
ceriops_zippeliana_evm.model.Scaffold_6_RagTag.567 ceriops_zippeliana ceriops_zippeliana_evm.model.Scaffold_6_RagTag.567
ceriops_zippeliana_evm.model.Scaffold_9_RagTag.849 ceriops_zippeliana ceriops_zippeliana_evm.model.Scaffold_9_RagTag.849
Cfasscaffold13627_cov2200037330 chamaecrista_fasciculata Cfasscaffold13627_cov2200037330
Cfasscaffold3009_cov2030132010 chamaecrista_fasciculata Cfasscaffold3009_cov2030132010
Cfasscaffold95213_cov1940288930 chamaecrista_fasciculata Cfasscaffold95213_cov1940288930
GBG63013 chara_braunii GBG63013
GBG66439 chara_braunii GBG66439
Cf003424.mRNA1 chenopodium_giganteum Cf003424.mRNA1
Cf018700.mRNA1 chenopodium_giganteum Cf018700.mRNA1
Cf031833.mRNA1 chenopodium_giganteum Cf031833.mRNA1
Cf050131.mRNA1 chenopodium_giganteum Cf050131.mRNA1
Cf060048.mRNA1 chenopodium_giganteum Cf060048.mRNA1
Cf060612.mRNA1 chenopodium_giganteum Cf060612.mRNA1
Cf076196.mRNA1 chenopodium_giganteum Cf076196.mRNA1
CquiC_Quinoa_Scaffold_13190054470.1 chenopodium_quinoa CquiC_Quinoa_Scaffold_13190054470.1
CquiC_Quinoa_Scaffold_19320137390.1 chenopodium_quinoa CquiC_Quinoa_Scaffold_19320137390.1
CquiC_Quinoa_Scaffold_23700201410.1 chenopodium_quinoa CquiC_Quinoa_Scaffold_23700201410.1
CquiC_Quinoa_Scaffold_26460223010.1 chenopodium_quinoa CquiC_Quinoa_Scaffold_26460223010.1
Calb1890051150.1 chiococca_alba Calb1890051150.1
Calb1910064740.1 chiococca_alba Calb1910064740.1
Calb1910064740.2 chiococca_alba Calb1910064740.2
Calb1910064740.3 chiococca_alba Calb1910064740.3
Calb1930074260.1 chiococca_alba Calb1930074260.1
Calb1930075920.1 chiococca_alba Calb1930075920.1
Calb3810231050.1 chiococca_alba Calb3810231050.1
Crei17G0008660.1 chlamydomonas_reinhardtii Crei17G0008660.1
jgi|Chlsc1|15487|g2362.t1 chlamydomonas_schloesseri jgi|Chlsc1|15487|g2362.t1
Cses01G0004080.1 chloranthus_sessilifolius Cses01G0004080.1