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
rhododendron_molle_KAI8550130.1 rhododendron_molle rhododendron_molle_KAI8550130.1
rhododendron_molle_KAI8554675.1 rhododendron_molle rhododendron_molle_KAI8554675.1
Rova01G0022280 rhododendron_ovatum Rova01G0022280
Rova06G0026690 rhododendron_ovatum Rova06G0026690
Rova06G0026710 rhododendron_ovatum Rova06G0026710
Rova12G0012690 rhododendron_ovatum Rova12G0012690
Rova12G0012700 rhododendron_ovatum Rova12G0012700
rhododendron_vialii_GWHPCAXW026984 rhododendron_vialii rhododendron_vialii_GWHPCAXW026984
rhododendron_vialii_GWHPCAXW029759 rhododendron_vialii rhododendron_vialii_GWHPCAXW029759
rhododendron_vialii_GWHPCAXW032327 rhododendron_vialii rhododendron_vialii_GWHPCAXW032327
rhododendron_vialii_GWHPCAXW032328 rhododendron_vialii rhododendron_vialii_GWHPCAXW032328
rhododendron_vialii_GWHPCAXW032329 rhododendron_vialii rhododendron_vialii_GWHPCAXW032329
rhododendron_vialii_GWHPCAXW032330 rhododendron_vialii rhododendron_vialii_GWHPCAXW032330
rhododendron_vialii_GWHPCAXW035636 rhododendron_vialii rhododendron_vialii_GWHPCAXW035636
rhododendron_vialii_GWHPCAXW035637 rhododendron_vialii rhododendron_vialii_GWHPCAXW035637
rhododendron_vialii_GWHPCAXW045976 rhododendron_vialii rhododendron_vialii_GWHPCAXW045976
rhododendron_vialii_GWHPCAXW049354 rhododendron_vialii rhododendron_vialii_GWHPCAXW049354
rhoiptelea_chiliantha.genome_RCH_Chr01G19140.1 rhoiptelea_chiliantha rhoiptelea_chiliantha.genome_RCH_Chr01G19140.1
rhoiptelea_chiliantha.genome_RCH_Chr01G24590.1 rhoiptelea_chiliantha rhoiptelea_chiliantha.genome_RCH_Chr01G24590.1
rhoiptelea_chiliantha.genome_RCH_Chr03G21510.1 rhoiptelea_chiliantha rhoiptelea_chiliantha.genome_RCH_Chr03G21510.1
rhoiptelea_chiliantha.genome_RCH_Chr04G07350.1 rhoiptelea_chiliantha rhoiptelea_chiliantha.genome_RCH_Chr04G07350.1
rhoiptelea_chiliantha.genome_RCH_Chr04G20620.1 rhoiptelea_chiliantha rhoiptelea_chiliantha.genome_RCH_Chr04G20620.1
rhoiptelea_chiliantha.genome_RCH_Chr09G02040.1 rhoiptelea_chiliantha rhoiptelea_chiliantha.genome_RCH_Chr09G02040.1
rhoiptelea_chiliantha.genome_RCH_Chr10G06100.1 rhoiptelea_chiliantha rhoiptelea_chiliantha.genome_RCH_Chr10G06100.1
rhoiptelea_chiliantha.genome_RCH_Chr10G16630.1 rhoiptelea_chiliantha rhoiptelea_chiliantha.genome_RCH_Chr10G16630.1
rhynchospora_breviuscula_mRNA12887 rhynchospora_breviuscula rhynchospora_breviuscula_mRNA12887
rhynchospora_breviuscula_mRNA17758 rhynchospora_breviuscula rhynchospora_breviuscula_mRNA17758
rhynchospora_breviuscula_mRNA20250 rhynchospora_breviuscula rhynchospora_breviuscula_mRNA20250
rhynchospora_breviuscula_mRNA8337 rhynchospora_breviuscula rhynchospora_breviuscula_mRNA8337
rhynchospora_pubera_mRNA15755 rhynchospora_pubera rhynchospora_pubera_mRNA15755