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
sonneratia_alba_SA_11093 sonneratia_alba sonneratia_alba_SA_11093
sonneratia_alba_SA_15151 sonneratia_alba sonneratia_alba_SA_15151
sonneratia_alba_SA_15654 sonneratia_alba sonneratia_alba_SA_15654
sonneratia_alba_SA_16146 sonneratia_alba sonneratia_alba_SA_16146
sonneratia_alba_SA_16665 sonneratia_alba sonneratia_alba_SA_16665
sonneratia_alba_SA_21541 sonneratia_alba sonneratia_alba_SA_21541
sonneratia_alba_SA_22132 sonneratia_alba sonneratia_alba_SA_22132
sonneratia_alba_SA_26177 sonneratia_alba sonneratia_alba_SA_26177
sonneratia_caseolaris_Sc2_03053 sonneratia_caseolaris sonneratia_caseolaris_Sc2_03053
sonneratia_caseolaris_Sc2_06158 sonneratia_caseolaris sonneratia_caseolaris_Sc2_06158
sonneratia_caseolaris_Sc2_14833 sonneratia_caseolaris sonneratia_caseolaris_Sc2_14833
sonneratia_caseolaris_Sc2_15608 sonneratia_caseolaris sonneratia_caseolaris_Sc2_15608
sonneratia_caseolaris_Sc2_16189 sonneratia_caseolaris sonneratia_caseolaris_Sc2_16189
sonneratia_caseolaris_Sc2_20242 sonneratia_caseolaris sonneratia_caseolaris_Sc2_20242
sonneratia_caseolaris_Sc2_26980 sonneratia_caseolaris sonneratia_caseolaris_Sc2_26980
Sbic01G0046930.1 sorghum_bicolor Sbic01G0046930.1
sparganium_stoloniferum_evm.model.Chr3.46 sparganium_stoloniferum sparganium_stoloniferum_evm.model.Chr3.46
TKY46698.1 spatholobus_suberectus TKY46698.1
TKY57932.1 spatholobus_suberectus TKY57932.1
TKY59403.1 spatholobus_suberectus TKY59403.1
TKY71565.1 spatholobus_suberectus TKY71565.1
TKY74946.1 spatholobus_suberectus TKY74946.1
speranskia_yunnanensis_evm.model.ctg000080_np1212.696 speranskia_yunnanensis speranskia_yunnanensis_evm.model.ctg000080_np1212.696
speranskia_yunnanensis_evm.model.ctg000130_np1212.1351 speranskia_yunnanensis speranskia_yunnanensis_evm.model.ctg000130_np1212.1351
speranskia_yunnanensis_evm.model.ctg000130_np1212.1353 speranskia_yunnanensis speranskia_yunnanensis_evm.model.ctg000130_np1212.1353
speranskia_yunnanensis_evm.model.ctg000130_np1212.1377 speranskia_yunnanensis speranskia_yunnanensis_evm.model.ctg000130_np1212.1377
speranskia_yunnanensis_evm.model.ctg000130_np1212.1382 speranskia_yunnanensis speranskia_yunnanensis_evm.model.ctg000130_np1212.1382
speranskia_yunnanensis_evm.model.ctg000290_np1212.29 speranskia_yunnanensis speranskia_yunnanensis_evm.model.ctg000290_np1212.29
Sdon751840165130 sphaerocarpos_donnellii Sdon751840165130
Sdon792930251880 sphaerocarpos_donnellii Sdon792930251880