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
hippophae_rhamnoides_Hiprha1gene03401 hippophae_rhamnoides hippophae_rhamnoides_Hiprha1gene03401
hippophae_rhamnoides_Hiprha1gene06347 hippophae_rhamnoides hippophae_rhamnoides_Hiprha1gene06347
hippophae_rhamnoides_Hiprha1gene10883 hippophae_rhamnoides hippophae_rhamnoides_Hiprha1gene10883
hippophae_rhamnoides_Hiprha1gene13179 hippophae_rhamnoides hippophae_rhamnoides_Hiprha1gene13179
hippophae_rhamnoides_Hiprha1gene14208 hippophae_rhamnoides hippophae_rhamnoides_Hiprha1gene14208
hippophae_rhamnoides_Hiprha1gene14991 hippophae_rhamnoides hippophae_rhamnoides_Hiprha1gene14991
hippophae_rhamnoides_Hiprha1gene28383 hippophae_rhamnoides hippophae_rhamnoides_Hiprha1gene28383
hirschfeldia_incana_HINC_NIJ_V1_G0066420.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0066420.1
hirschfeldia_incana_HINC_NIJ_V1_G0131720.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0131720.1
hirschfeldia_incana_HINC_NIJ_V1_G0157230.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0157230.1
hirschfeldia_incana_HINC_NIJ_V1_G0180100.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0180100.1
hirschfeldia_incana_HINC_NIJ_V1_G0236550.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0236550.1
hirschfeldia_incana_HINC_NIJ_V1_G0242130.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0242130.1
hirschfeldia_incana_HINC_NIJ_V1_G0242140.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0242140.1
hirschfeldia_incana_HINC_NIJ_V1_G0242150.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0242150.1
hirschfeldia_incana_HINC_NIJ_V1_G0242160.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0242160.1
hirschfeldia_incana_HINC_NIJ_V1_G0256000.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0256000.1
hirschfeldia_incana_HINC_NIJ_V1_G0298200.1 hirschfeldia_incana hirschfeldia_incana_HINC_NIJ_V1_G0298200.1
Hsca1632230111890 homaliodendron_scalpellifolium Hsca1632230111890
Hsca1661600203560 homaliodendron_scalpellifolium Hsca1661600203560
hordeum_marinum_GWHPBJBH020745 hordeum_marinum hordeum_marinum_GWHPBJBH020745
hordeum_marinum_GWHPBJBH032389 hordeum_marinum hordeum_marinum_GWHPBJBH032389
hordeum_marinum_GWHPBJBH039173 hordeum_marinum hordeum_marinum_GWHPBJBH039173
Hvulchr3HG0025110.1 hordeum_vulgare Hvulchr3HG0025110.1
Hvulchr3HG0046680.1 hordeum_vulgare Hvulchr3HG0046680.1
Hvulchr3HG0046680.3 hordeum_vulgare Hvulchr3HG0046680.3
Hvulchr3HG0046680.4 hordeum_vulgare Hvulchr3HG0046680.4
Hvulchr3HG0049590.1 hordeum_vulgare Hvulchr3HG0049590.1
Hvulchr3HG0049590.3 hordeum_vulgare Hvulchr3HG0049590.3
Hvulchr3HG0049590.4 hordeum_vulgare Hvulchr3HG0049590.4