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
bothriochloa_decipiens_Bdec29014-RA bothriochloa_decipiens bothriochloa_decipiens_Bdec29014-RA
Bbrascaffold_1330023850.1 botryococcus_braunii Bbrascaffold_1330023850.1
Bbrascaffold_1440032220.1 botryococcus_braunii Bbrascaffold_1440032220.1
Bbrascaffold_1440032230.1 botryococcus_braunii Bbrascaffold_1440032230.1
Bbrascaffold_145_10033100.1 botryococcus_braunii Bbrascaffold_145_10033100.1
Bbrascaffold_150038250.1 botryococcus_braunii Bbrascaffold_150038250.1
Bbrascaffold_290109980.1 botryococcus_braunii Bbrascaffold_290109980.1
Bbrascaffold_290109990.1 botryococcus_braunii Bbrascaffold_290109990.1
bougainvillea_buttiana_Bou_119147 bougainvillea_buttiana bougainvillea_buttiana_Bou_119147
bougainvillea_buttiana_Bou_119410 bougainvillea_buttiana bougainvillea_buttiana_Bou_119410
bougainvillea_buttiana_Bou_16300 bougainvillea_buttiana bougainvillea_buttiana_Bou_16300
bougainvillea_buttiana_Bou_24906 bougainvillea_buttiana bougainvillea_buttiana_Bou_24906
bougainvillea_buttiana_Bou_30791 bougainvillea_buttiana bougainvillea_buttiana_Bou_30791
bougainvillea_buttiana_Bou_39628 bougainvillea_buttiana bougainvillea_buttiana_Bou_39628
bougainvillea_buttiana_Bou_42712 bougainvillea_buttiana bougainvillea_buttiana_Bou_42712
bougainvillea_buttiana_Bou_53020 bougainvillea_buttiana bougainvillea_buttiana_Bou_53020
bougainvillea_buttiana_Bou_70720 bougainvillea_buttiana bougainvillea_buttiana_Bou_70720
bougainvillea_buttiana_Bou_77599 bougainvillea_buttiana bougainvillea_buttiana_Bou_77599
bougainvillea_buttiana_Bou_94779 bougainvillea_buttiana bougainvillea_buttiana_Bou_94779
bougainvillea_buttiana_Bou_97095 bougainvillea_buttiana bougainvillea_buttiana_Bou_97095
Bdis01G0083040.1 brachypodium_distachyon Bdis01G0083040.1
Bdis01G0083040.2 brachypodium_distachyon Bdis01G0083040.2
Bdis01G0089130.1 brachypodium_distachyon Bdis01G0089130.1
Bdis01G0089170.1 brachypodium_distachyon Bdis01G0089170.1
BhybBhD10095100.1 brachypodium_hybridum BhybBhD10095100.1
BhybBhD10101950.1 brachypodium_hybridum BhybBhD10101950.1
BhybBhS20449060.1 brachypodium_hybridum BhybBhS20449060.1
BhybBhS20455030.1 brachypodium_hybridum BhybBhS20455030.1
BhybBhS30493000.1 brachypodium_hybridum BhybBhS30493000.1
brachypodium_mexicanum_Brame.02PG052400.1.p brachypodium_mexicanum brachypodium_mexicanum_Brame.02PG052400.1.p