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
Aalbaalba5_s000547540268020.1 abies_alba Aalbaalba5_s000547540268020.1
Aalbaalba5_s000620770292790.1 abies_alba Aalbaalba5_s000620770292790.1
Aalbaalba5_s000903750377990.1 abies_alba Aalbaalba5_s000903750377990.1
Aalbaalba5_s000903750377990.2 abies_alba Aalbaalba5_s000903750377990.2
Aalbaalba5_s001174610446640.1 abies_alba Aalbaalba5_s001174610446640.1
Aalbaalba5_s002030040605560.1 abies_alba Aalbaalba5_s002030040605560.1
Aalbaalba5_s002385250652400.1 abies_alba Aalbaalba5_s002385250652400.1
Aalbaalba5_s002522880668270.1 abies_alba Aalbaalba5_s002522880668270.1
Aalbaalba5_s003044170718970.1 abies_alba Aalbaalba5_s003044170718970.1
Aalbaalba5_s003556810756330.1 abies_alba Aalbaalba5_s003556810756330.1
Aalbaalba5_s004374230802540.1 abies_alba Aalbaalba5_s004374230802540.1
Aalbaalba5_s004374230802540.2 abies_alba Aalbaalba5_s004374230802540.2
Aalbaalba5_s004690960816290.1 abies_alba Aalbaalba5_s004690960816290.1
Aalbaalba5_s005146660835000.1 abies_alba Aalbaalba5_s005146660835000.1
XP_027332552.1 abrus_precatorius XP_027332552.1
XP_027334172.1 abrus_precatorius XP_027334172.1
XP_027334181.1 abrus_precatorius XP_027334181.1
XP_027339655.1 abrus_precatorius XP_027339655.1
XP_027339656.1 abrus_precatorius XP_027339656.1
XP_027345253.1 abrus_precatorius XP_027345253.1
XP_027346187.1 abrus_precatorius XP_027346187.1
XP_027354479.1 abrus_precatorius XP_027354479.1
XP_027354480.1 abrus_precatorius XP_027354480.1
XP_027356142.1 abrus_precatorius XP_027356142.1
acacia_pycnantha_KAI9074559.1 acacia_pycnantha acacia_pycnantha_KAI9074559.1
acacia_pycnantha_KAI9076761.1 acacia_pycnantha acacia_pycnantha_KAI9076761.1
acacia_pycnantha_KAI9079272.1 acacia_pycnantha acacia_pycnantha_KAI9079272.1
acacia_pycnantha_KAI9106450.1 acacia_pycnantha acacia_pycnantha_KAI9106450.1
acacia_pycnantha_KAI9110253.1 acacia_pycnantha acacia_pycnantha_KAI9110253.1
acacia_pycnantha_KAI9117762.1 acacia_pycnantha acacia_pycnantha_KAI9117762.1