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
Sbra15G0001910.1 salix_brachista Sbra15G0001910.1
Sbra18G0000010.1 salix_brachista Sbra18G0000010.1
Sbra18G0000030.1 salix_brachista Sbra18G0000030.1
Sbra18G0000960.1 salix_brachista Sbra18G0000960.1
Sbra18G0001100.1 salix_brachista Sbra18G0001100.1
salix_chaenomeloides_GWHPBDOA005724 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA005724
salix_chaenomeloides_GWHPBDOA007683 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA007683
salix_chaenomeloides_GWHPBDOA013599 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA013599
salix_chaenomeloides_GWHPBDOA013610 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA013610
salix_chaenomeloides_GWHPBDOA013615 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA013615
salix_chaenomeloides_GWHPBDOA013654 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA013654
salix_chaenomeloides_GWHPBDOA013658 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA013658
salix_chaenomeloides_GWHPBDOA013660 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA013660
salix_chaenomeloides_GWHPBDOA013661 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA013661
salix_chaenomeloides_GWHPBDOA020405 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA020405
salix_chaenomeloides_GWHPBDOA023964 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA023964
salix_chaenomeloides_GWHPBDOA027032 salix_chaenomeloides salix_chaenomeloides_GWHPBDOA027032
salix_dunnii_KAF9660921.1 salix_dunnii salix_dunnii_KAF9660921.1
salix_dunnii_KAF9668188.1 salix_dunnii salix_dunnii_KAF9668188.1
salix_purpurea_Sapur.002G092600.1.p salix_purpurea salix_purpurea_Sapur.002G092600.1.p
salix_purpurea_Sapur.005G121400.1.p salix_purpurea salix_purpurea_Sapur.005G121400.1.p
salix_purpurea_Sapur.007G005700.1.p salix_purpurea salix_purpurea_Sapur.007G005700.1.p
salix_purpurea_Sapur.009G064200.1.p salix_purpurea salix_purpurea_Sapur.009G064200.1.p
salix_purpurea_Sapur.016G184700.1.p salix_purpurea salix_purpurea_Sapur.016G184700.1.p
salix_purpurea_Sapur.016G184800.1.p salix_purpurea salix_purpurea_Sapur.016G184800.1.p
salix_purpurea_Sapur.019G023900.1.p salix_purpurea salix_purpurea_Sapur.019G023900.1.p
salix_purpurea_Sapur.019G048000.1.p salix_purpurea salix_purpurea_Sapur.019G048000.1.p
salix_purpurea_Sapur.019G049100.1.p salix_purpurea salix_purpurea_Sapur.019G049100.1.p
salix_purpurea_Sapur.15WG132200.1.p salix_purpurea salix_purpurea_Sapur.15WG132200.1.p
salix_purpurea_Sapur.15ZG114400.1.p salix_purpurea salix_purpurea_Sapur.15ZG114400.1.p