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.

Species Distribution

Related Modules

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

Gene	Species	Protein ID
Bo2g160690.1	brassica_oleracea	Bo2g160690.1
Bo2g160730.1	brassica_oleracea	Bo2g160730.1
Bo2g160740.1	brassica_oleracea	Bo2g160740.1
Bo4g127140.1	brassica_oleracea	Bo4g127140.1
Bo4g151100.1	brassica_oleracea	Bo4g151100.1
Bo7g097120.1	brassica_oleracea	Bo7g097120.1
Bo7g097140.1	brassica_oleracea	Bo7g097140.1
Bo8g042040.1	brassica_oleracea	Bo8g042040.1
Bo8g102370.1	brassica_oleracea	Bo8g102370.1
Bo8g111040.1	brassica_oleracea	Bo8g111040.1
Bo9g013760.1	brassica_oleracea	Bo9g013760.1
Bra009737.1-P	brassica_rapa	Bra009737.1-P
Bra009738.1-P	brassica_rapa	Bra009738.1-P
Bra011783.1-P	brassica_rapa	Bra011783.1-P
Bra026465.1-P	brassica_rapa	Bra026465.1-P
Bra027863.1-P	brassica_rapa	Bra027863.1-P
Bra029391.1-P	brassica_rapa	Bra029391.1-P
Bra029392.1-P	brassica_rapa	Bra029392.1-P
Bra029393.1-P	brassica_rapa	Bra029393.1-P
Bra030198.1-P	brassica_rapa	Bra030198.1-P
Bra031120.1-P	brassica_rapa	Bra031120.1-P
Bra032778.1-P	brassica_rapa	Bra032778.1-P
Bra032779.1-P	brassica_rapa	Bra032779.1-P
Bra038068.1-P	brassica_rapa	Bra038068.1-P
bretschneidera_sinensis_BsiG0006053.1	bretschneidera_sinensis	bretschneidera_sinensis_BsiG0006053.1
bretschneidera_sinensis_BsiG0006054.1	bretschneidera_sinensis	bretschneidera_sinensis_BsiG0006054.1
bretschneidera_sinensis_BsiG0010151.1	bretschneidera_sinensis	bretschneidera_sinensis_BsiG0010151.1
bretschneidera_sinensis_BsiG0012661.1	bretschneidera_sinensis	bretschneidera_sinensis_BsiG0012661.1
bretschneidera_sinensis_BsiG0012662.1	bretschneidera_sinensis	bretschneidera_sinensis_BsiG0012662.1
bretschneidera_sinensis_BsiG0012663.1	bretschneidera_sinensis	bretschneidera_sinensis_BsiG0012663.1