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
pyrus_ussuriensis_x_communis_Pdr9g000440.1 pyrus_ussuriensis_x_communis pyrus_ussuriensis_x_communis_Pdr9g000440.1
quercus_dentata_GWHPBRAD018880 quercus_dentata quercus_dentata_GWHPBRAD018880
quercus_dentata_GWHPBRAD018881 quercus_dentata quercus_dentata_GWHPBRAD018881
quercus_dentata_GWHPBRAD018882 quercus_dentata quercus_dentata_GWHPBRAD018882
quercus_dentata_GWHPBRAD018883 quercus_dentata quercus_dentata_GWHPBRAD018883
quercus_dentata_GWHPBRAD018884 quercus_dentata quercus_dentata_GWHPBRAD018884
quercus_dentata_GWHPBRAD018885 quercus_dentata quercus_dentata_GWHPBRAD018885
quercus_dentata_GWHPBRAD018886 quercus_dentata quercus_dentata_GWHPBRAD018886
quercus_dentata_GWHPBRAD018891 quercus_dentata quercus_dentata_GWHPBRAD018891
quercus_dentata_GWHPBRAD018892 quercus_dentata quercus_dentata_GWHPBRAD018892
quercus_dentata_GWHPBRAD018893 quercus_dentata quercus_dentata_GWHPBRAD018893
quercus_dentata_GWHPBRAD018894 quercus_dentata quercus_dentata_GWHPBRAD018894
quercus_dentata_GWHPBRAD026667 quercus_dentata quercus_dentata_GWHPBRAD026667
quercus_dentata_GWHPBRAD032378 quercus_dentata quercus_dentata_GWHPBRAD032378
quercus_dentata_GWHPBRAD032379 quercus_dentata quercus_dentata_GWHPBRAD032379
quercus_lobata_QL06p038677 quercus_lobata quercus_lobata_QL06p038677
quercus_lobata_QL06p038685 quercus_lobata quercus_lobata_QL06p038685
quercus_lobata_QL06p038717 quercus_lobata quercus_lobata_QL06p038717
quercus_lobata_QL09p016092 quercus_lobata quercus_lobata_QL09p016092
quercus_lobata_QL11p027722 quercus_lobata quercus_lobata_QL11p027722
Qrob09G0004870 quercus_robur Qrob09G0004870
Qrob09G0007870 quercus_robur Qrob09G0007870
Qrob09G0017760 quercus_robur Qrob09G0017760
Qrob09G0017770 quercus_robur Qrob09G0017770
Qrob09G0017780 quercus_robur Qrob09G0017780
QrobQrob_H2.3_Sc00002490009860 quercus_robur QrobQrob_H2.3_Sc00002490009860
QrobQrob_H2.3_Sc00002490009870 quercus_robur QrobQrob_H2.3_Sc00002490009870
quercus_rubra_Qurub.06G087300.1 quercus_rubra quercus_rubra_Qurub.06G087300.1
quercus_rubra_Qurub.09G083200.1 quercus_rubra quercus_rubra_Qurub.09G083200.1
quercus_rubra_Qurub.11G024700.1 quercus_rubra quercus_rubra_Qurub.11G024700.1