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
Dinv09G0001460.2	davidia_involucrata	Dinv09G0001460.2
Dinv09G0001460.3	davidia_involucrata	Dinv09G0001460.3
Dinv12G0005040.1	davidia_involucrata	Dinv12G0005040.1
Dinv12G0005050.1	davidia_involucrata	Dinv12G0005050.1
Dinv12G0005060.1	davidia_involucrata	Dinv12G0005060.1
Dinv12G0005070.1	davidia_involucrata	Dinv12G0005070.1
Dinv18G0009230.1	davidia_involucrata	Dinv18G0009230.1
Dinv18G0009230.2	davidia_involucrata	Dinv18G0009230.2
Dinv18G0009230.3	davidia_involucrata	Dinv18G0009230.3
Dinv18G0009230.4	davidia_involucrata	Dinv18G0009230.4
Dinv20G0021380.1	davidia_involucrata	Dinv20G0021380.1
KAH0454464.1	dendrobium_chrysotoxum	KAH0454464.1
KAH0455138.1	dendrobium_chrysotoxum	KAH0455138.1
KAH0458958.1	dendrobium_chrysotoxum	KAH0458958.1
Dhuo11G0005200	dendrobium_huoshanense	Dhuo11G0005200
Dhuo14G0000800	dendrobium_huoshanense	Dhuo14G0000800
Dhuo14G0000870	dendrobium_huoshanense	Dhuo14G0000870
KAI0497645.1	dendrobium_nobile	KAI0497645.1
KAI0503561.1	dendrobium_nobile	KAI0503561.1
genome_Dca16447.1	dianthus_caryophyllus	genome_Dca16447.1
genome_Dca36261.1	dianthus_caryophyllus	genome_Dca36261.1
genome_Dca43604.1	dianthus_caryophyllus	genome_Dca43604.1
genome_Dca43606.1	dianthus_caryophyllus	genome_Dca43606.1
genome_Dca59171.1	dianthus_caryophyllus	genome_Dca59171.1
Dchi1125600022020	dicranoloma_chilense	Dchi1125600022020
Dchi1686910168480	dicranoloma_chilense	Dchi1686910168480
DICful13000005620	dicranum_fulvum	DICful13000005620
DICful3976970093020	dicranum_fulvum	DICful3976970093020
DICful4110940113750	dicranum_fulvum	DICful4110940113750
DICful4281950228780	dicranum_fulvum	DICful4281950228780