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
Atau1DG0047130.15	aegilops_tauschii	Atau1DG0047130.15
Atau1DG0047130.16	aegilops_tauschii	Atau1DG0047130.16
Atau1DG0047130.17	aegilops_tauschii	Atau1DG0047130.17
Atau1DG0047130.18	aegilops_tauschii	Atau1DG0047130.18
Atau1DG0047130.2	aegilops_tauschii	Atau1DG0047130.2
Atau1DG0047130.24	aegilops_tauschii	Atau1DG0047130.24
Atau1DG0047130.26	aegilops_tauschii	Atau1DG0047130.26
Atau1DG0047130.27	aegilops_tauschii	Atau1DG0047130.27
Atau1DG0047130.28	aegilops_tauschii	Atau1DG0047130.28
Atau1DG0047130.29	aegilops_tauschii	Atau1DG0047130.29
Atau1DG0047130.3	aegilops_tauschii	Atau1DG0047130.3
Atau1DG0047130.30	aegilops_tauschii	Atau1DG0047130.30
Atau1DG0047130.31	aegilops_tauschii	Atau1DG0047130.31
Atau1DG0047130.32	aegilops_tauschii	Atau1DG0047130.32
Atau1DG0047130.4	aegilops_tauschii	Atau1DG0047130.4
Atau1DG0047130.5	aegilops_tauschii	Atau1DG0047130.5
Atau1DG0047130.6	aegilops_tauschii	Atau1DG0047130.6
Atau1DG0047130.7	aegilops_tauschii	Atau1DG0047130.7
Atau1DG0047130.8	aegilops_tauschii	Atau1DG0047130.8
Atau1DG0047130.9	aegilops_tauschii	Atau1DG0047130.9
Atau3DG0005390.2	aegilops_tauschii	Atau3DG0005390.2
Atau4DG0011290.6	aegilops_tauschii	Atau4DG0011290.6
Atau4DG0011290.7	aegilops_tauschii	Atau4DG0011290.7
Aeve08G0012680.1	aeschynomene_evenia	Aeve08G0012680.1
GWHPBISH002883	akebia_trifoliata	GWHPBISH002883
Agluscaffold3065_cov1090184660	alnus_glutinosa	Agluscaffold3065_cov1090184660
alnus_rubra_ALNRU00051703-RA	alnus_rubra	alnus_rubra_ALNRU00051703-RA
alnus_rubra_ALNRU00116124-RA	alnus_rubra	alnus_rubra_ALNRU00116124-RA
alnus_rubra_ALNRU00141136-RA	alnus_rubra	alnus_rubra_ALNRU00141136-RA
AMhypScaffold_140090020.1	amaranthus_hypochondriacus	AMhypScaffold_140090020.1