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
PglaA07G0013730.1	populus_glandulosa_x_p_alba	PglaA07G0013730.1
PglaA15G0002140.1	populus_glandulosa_x_p_alba	PglaA15G0002140.1
PglaA15G0002160.1	populus_glandulosa_x_p_alba	PglaA15G0002160.1
PglaA19G0011390.1	populus_glandulosa_x_p_alba	PglaA19G0011390.1
PglaA19G0011410.1	populus_glandulosa_x_p_alba	PglaA19G0011410.1
PglaA19G0011440.1	populus_glandulosa_x_p_alba	PglaA19G0011440.1
PglaA19G0011450.1	populus_glandulosa_x_p_alba	PglaA19G0011450.1
PglaA19G0012480.1	populus_glandulosa_x_p_alba	PglaA19G0012480.1
PglaA19G0012480.2	populus_glandulosa_x_p_alba	PglaA19G0012480.2
PglaA19G0012490.1	populus_glandulosa_x_p_alba	PglaA19G0012490.1
PglaA19G0012500.1	populus_glandulosa_x_p_alba	PglaA19G0012500.1
PglaG01G0015220.1	populus_glandulosa_x_p_alba	PglaG01G0015220.1
PglaG01G0015230.1	populus_glandulosa_x_p_alba	PglaG01G0015230.1
PglaG01G0031160.1	populus_glandulosa_x_p_alba	PglaG01G0031160.1
PglaG02G0014910.1	populus_glandulosa_x_p_alba	PglaG02G0014910.1
PglaG05G0010680.1	populus_glandulosa_x_p_alba	PglaG05G0010680.1
PglaG05G0016710.1	populus_glandulosa_x_p_alba	PglaG05G0016710.1
PglaG07G0013850.1	populus_glandulosa_x_p_alba	PglaG07G0013850.1
PglaG15G0003110.1	populus_glandulosa_x_p_alba	PglaG15G0003110.1
PglaG15G0003130.1	populus_glandulosa_x_p_alba	PglaG15G0003130.1
PglaG19G0011710.1	populus_glandulosa_x_p_alba	PglaG19G0011710.1
PglaG19G0011710.2	populus_glandulosa_x_p_alba	PglaG19G0011710.2
PglaG19G0011710.3	populus_glandulosa_x_p_alba	PglaG19G0011710.3
PglaG19G0011710.4	populus_glandulosa_x_p_alba	PglaG19G0011710.4
PglaG19G0011750.1	populus_glandulosa_x_p_alba	PglaG19G0011750.1
PglaG19G0013150.1	populus_glandulosa_x_p_alba	PglaG19G0013150.1
populus_ilicifolia_GWHPABKR002631	populus_ilicifolia	populus_ilicifolia_GWHPABKR002631
populus_ilicifolia_GWHPABKR004909	populus_ilicifolia	populus_ilicifolia_GWHPABKR004909
populus_ilicifolia_GWHPABKR011344	populus_ilicifolia	populus_ilicifolia_GWHPABKR011344
populus_ilicifolia_GWHPABKR014742	populus_ilicifolia	populus_ilicifolia_GWHPABKR014742