CAS

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 CAS.

Lineage Coverage

Detected in 783 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 35857 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
acer_truncatum_Atru.chr2.2478	acer_truncatum	acer_truncatum_Atru.chr2.2478
acer_truncatum_Atru.chr2.249	acer_truncatum	acer_truncatum_Atru.chr2.249
acer_truncatum_Atru.chr2.3109_Atru.chr2.3098	acer_truncatum	acer_truncatum_Atru.chr2.3109_Atru.chr2.3098
acer_truncatum_Atru.chr2.3138	acer_truncatum	acer_truncatum_Atru.chr2.3138
acer_truncatum_Atru.chr2.3649	acer_truncatum	acer_truncatum_Atru.chr2.3649
acer_truncatum_Atru.chr2.3661	acer_truncatum	acer_truncatum_Atru.chr2.3661
acer_truncatum_Atru.chr2.713	acer_truncatum	acer_truncatum_Atru.chr2.713
acer_truncatum_Atru.chr2.714	acer_truncatum	acer_truncatum_Atru.chr2.714
acer_truncatum_Atru.chr3.2641	acer_truncatum	acer_truncatum_Atru.chr3.2641
acer_truncatum_Atru.chr3.4106	acer_truncatum	acer_truncatum_Atru.chr3.4106
acer_truncatum_Atru.chr3.4108	acer_truncatum	acer_truncatum_Atru.chr3.4108
acer_truncatum_Atru.chr4.1009	acer_truncatum	acer_truncatum_Atru.chr4.1009
acer_truncatum_Atru.chr4.1010	acer_truncatum	acer_truncatum_Atru.chr4.1010
acer_truncatum_Atru.chr4.1459	acer_truncatum	acer_truncatum_Atru.chr4.1459
acer_truncatum_Atru.chr4.2540	acer_truncatum	acer_truncatum_Atru.chr4.2540
acer_truncatum_Atru.chr5.1211	acer_truncatum	acer_truncatum_Atru.chr5.1211
acer_truncatum_Atru.chr5.1453	acer_truncatum	acer_truncatum_Atru.chr5.1453
acer_truncatum_Atru.chr5.515	acer_truncatum	acer_truncatum_Atru.chr5.515
acer_truncatum_Atru.chr6.1466	acer_truncatum	acer_truncatum_Atru.chr6.1466
acer_truncatum_Atru.chr7.1000	acer_truncatum	acer_truncatum_Atru.chr7.1000
acer_truncatum_Atru.chr7.1001	acer_truncatum	acer_truncatum_Atru.chr7.1001
acer_truncatum_Atru.chr7.1002	acer_truncatum	acer_truncatum_Atru.chr7.1002
acer_truncatum_Atru.chr9.693	acer_truncatum	acer_truncatum_Atru.chr9.693
Acyan01G0066800.1	acer_yangbiense	Acyan01G0066800.1
Acyan01G0132500.1	acer_yangbiense	Acyan01G0132500.1
Acyan01G0206700.1	acer_yangbiense	Acyan01G0206700.1
Acyan01G0311200.1	acer_yangbiense	Acyan01G0311200.1
Acyan01G0337800.1	acer_yangbiense	Acyan01G0337800.1
Acyan02G0139500.1	acer_yangbiense	Acyan02G0139500.1
Acyan02G0147500.1	acer_yangbiense	Acyan02G0147500.1