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
Cses03G0001960.1 chloranthus_sessilifolius Cses03G0001960.1
Cses04G0025230.1 chloranthus_sessilifolius Cses04G0025230.1
Cses06G0014830.1 chloranthus_sessilifolius Cses06G0014830.1
Cses06G0017730.1 chloranthus_sessilifolius Cses06G0017730.1
Cses12G0003450.1 chloranthus_sessilifolius Cses12G0003450.1
Cses12G0004530.1 chloranthus_sessilifolius Cses12G0004530.1
Catmscaffold1_pilon0027580 chlorokybus_atmophyticus Catmscaffold1_pilon0027580
Catmscaffold44_pilon0060290 chlorokybus_atmophyticus Catmscaffold44_pilon0060290
Cacid2476750197810 chorisodontium_acidophyllum Cacid2476750197810
Cacid2512930274560 chorisodontium_acidophyllum Cacid2512930274560
Cacipscaffold_4190190620 chorisodontium_aciphyllum Cacipscaffold_4190190620
Cacipscaffold_6190319830 chorisodontium_aciphyllum Cacipscaffold_6190319830
Czof02G0001470.1 chromochloris_zofingiensis Czof02G0001470.1
Czof08G0002740.1 chromochloris_zofingiensis Czof08G0002740.1
Cnanutg10349_pilon_pilon0006860.1 chrysanthemum_nankingense Cnanutg10349_pilon_pilon0006860.1
Cnanutg10421_pilon_pilon0008430.1 chrysanthemum_nankingense Cnanutg10421_pilon_pilon0008430.1
Cnanutg13033_pilon_pilon0041700.1 chrysanthemum_nankingense Cnanutg13033_pilon_pilon0041700.1
Cnanutg13664_pilon_pilon0052620.1 chrysanthemum_nankingense Cnanutg13664_pilon_pilon0052620.1
Cnanutg13979_pilon_pilon0059360.1 chrysanthemum_nankingense Cnanutg13979_pilon_pilon0059360.1
Cnanutg14710_pilon_pilon0071290.1 chrysanthemum_nankingense Cnanutg14710_pilon_pilon0071290.1
Cnanutg15703_pilon_pilon0088710.1 chrysanthemum_nankingense Cnanutg15703_pilon_pilon0088710.1
Cnanutg1887_pilon_pilon0134270.1 chrysanthemum_nankingense Cnanutg1887_pilon_pilon0134270.1
Cnanutg19475_pilon_pilon0142570.1 chrysanthemum_nankingense Cnanutg19475_pilon_pilon0142570.1
Cnanutg20049_pilon_pilon0151980.1 chrysanthemum_nankingense Cnanutg20049_pilon_pilon0151980.1
Cnanutg20599_pilon_pilon0161930.1 chrysanthemum_nankingense Cnanutg20599_pilon_pilon0161930.1
Cnanutg216074_pilon_pilon0178580.1 chrysanthemum_nankingense Cnanutg216074_pilon_pilon0178580.1
Cnanutg23168_pilon_pilon0202040.1 chrysanthemum_nankingense Cnanutg23168_pilon_pilon0202040.1
Cnanutg24756_pilon_pilon0223070.1 chrysanthemum_nankingense Cnanutg24756_pilon_pilon0223070.1
Cnanutg26075_pilon_pilon0240210.1 chrysanthemum_nankingense Cnanutg26075_pilon_pilon0240210.1
Cnanutg26655_pilon_pilon0246990.1 chrysanthemum_nankingense Cnanutg26655_pilon_pilon0246990.1