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
SalbSina_scaffold5660372970.1 sinapis_alba SalbSina_scaffold5660372970.1
SalbSina_scaffold60020386260.1 sinapis_alba SalbSina_scaffold60020386260.1
SalbSina_scaffold7110420680.1 sinapis_alba SalbSina_scaffold7110420680.1
SalbSina_scaffold8220457610.1 sinapis_alba SalbSina_scaffold8220457610.1
SalbSina_scaffold8220457620.1 sinapis_alba SalbSina_scaffold8220457620.1
SalbSina_scaffold940487930.1 sinapis_alba SalbSina_scaffold940487930.1
evm.TU.tig00000152.2_1_ORF1 siraitia_grosvenorii evm.TU.tig00000152.2_1_ORF1
evm.TU.tig00003685.1_1_ORF1 siraitia_grosvenorii evm.TU.tig00003685.1_1_ORF1
evm.TU.tig00003685.2_1_ORF1 siraitia_grosvenorii evm.TU.tig00003685.2_1_ORF1
evm.TU.tig00153055.304_1_ORF1 siraitia_grosvenorii evm.TU.tig00153055.304_1_ORF1
evm.TU.tig00153204.279_1_ORF1 siraitia_grosvenorii evm.TU.tig00153204.279_1_ORF1
evm.TU.tig00153554.124_1_ORF1 siraitia_grosvenorii evm.TU.tig00153554.124_1_ORF1
evm.TU.tig00153823.3_1_ORF1 siraitia_grosvenorii evm.TU.tig00153823.3_1_ORF1
evm.TU.tig00154107.28_1_ORF1 siraitia_grosvenorii evm.TU.tig00154107.28_1_ORF1
SiriSI_C1985450043290 sisymbrium_irio SiriSI_C1985450043290
SiriSI_C2004890044910 sisymbrium_irio SiriSI_C2004890044910
SiriSI_scaffold15090165030 sisymbrium_irio SiriSI_scaffold15090165030
SiriSI_scaffold15090165050 sisymbrium_irio SiriSI_scaffold15090165050
SiriSI_scaffold17710207180 sisymbrium_irio SiriSI_scaffold17710207180
SiriSI_scaffold21210250590 sisymbrium_irio SiriSI_scaffold21210250590
SiriSI_scaffold21420251840 sisymbrium_irio SiriSI_scaffold21420251840
SiriSI_scaffold2210258920 sisymbrium_irio SiriSI_scaffold2210258920
SiriSI_scaffold22230260050 sisymbrium_irio SiriSI_scaffold22230260050
SiriSI_scaffold22230260060 sisymbrium_irio SiriSI_scaffold22230260060
SiriSI_scaffold22230260070 sisymbrium_irio SiriSI_scaffold22230260070
SiriSI_scaffold22230260080 sisymbrium_irio SiriSI_scaffold22230260080
SiriSI_scaffold22230260090 sisymbrium_irio SiriSI_scaffold22230260090
SiriSI_scaffold22230260100 sisymbrium_irio SiriSI_scaffold22230260100
SiriSI_scaffold9040482990 sisymbrium_irio SiriSI_scaffold9040482990
solanum_aethiopicum_Soaet10011572 solanum_aethiopicum solanum_aethiopicum_Soaet10011572