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
PYcom07G0002480.1 pyrus_communis PYcom07G0002480.1
PYcom07G0002490.1 pyrus_communis PYcom07G0002490.1
PYcom07G0002500.1 pyrus_communis PYcom07G0002500.1
PYcom07G0002510.1 pyrus_communis PYcom07G0002510.1
PYcom08G0005350.1 pyrus_communis PYcom08G0005350.1
PYcom09G0014810.1 pyrus_communis PYcom09G0014810.1
PYcom10G0007830.1 pyrus_communis PYcom10G0007830.1
PYcom11G0016220.1 pyrus_communis PYcom11G0016220.1
PYcom15G0005260.1 pyrus_communis PYcom15G0005260.1
PYcom15G0022720.1 pyrus_communis PYcom15G0022720.1
PYcom15G0022730.1 pyrus_communis PYcom15G0022730.1
pyrus_ussuriensis_x_communis_Pdr0g014820.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr0g014820.1
pyrus_ussuriensis_x_communis_Pdr0g014840.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr0g014840.1
pyrus_ussuriensis_x_communis_Pdr0g014850.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr0g014850.1
pyrus_ussuriensis_x_communis_Pdr0g014860.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr0g014860.1
pyrus_ussuriensis_x_communis_Pdr0g019310.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr0g019310.1
pyrus_ussuriensis_x_communis_Pdr10g018490.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr10g018490.1
pyrus_ussuriensis_x_communis_Pdr10g028880.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr10g028880.1
pyrus_ussuriensis_x_communis_Pdr10g028900.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr10g028900.1
pyrus_ussuriensis_x_communis_Pdr15g008440.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr15g008440.1
pyrus_ussuriensis_x_communis_Pdr2g002000.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr2g002000.1
pyrus_ussuriensis_x_communis_Pdr2g008850.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr2g008850.1
pyrus_ussuriensis_x_communis_Pdr5g011470.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr5g011470.1
pyrus_ussuriensis_x_communis_Pdr5g011480.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr5g011480.1
pyrus_ussuriensis_x_communis_Pdr5g011500.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr5g011500.1
pyrus_ussuriensis_x_communis_Pdr7g001920.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr7g001920.1
pyrus_ussuriensis_x_communis_Pdr7g001930.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr7g001930.1
pyrus_ussuriensis_x_communis_Pdr7g001940.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr7g001940.1
pyrus_ussuriensis_x_communis_Pdr8g000560.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr8g000560.1
pyrus_ussuriensis_x_communis_Pdr8g000820.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr8g000820.1