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
Abuxscaffold84910261090.1	atlantia_buxifolia	Abuxscaffold84910261090.1
Abuxscaffold84910261090.2	atlantia_buxifolia	Abuxscaffold84910261090.2
Abuxscaffold84910261100.1	atlantia_buxifolia	Abuxscaffold84910261100.1
Abuxscaffold86730264250.1	atlantia_buxifolia	Abuxscaffold86730264250.1
Abuxscaffold86730264270.1	atlantia_buxifolia	Abuxscaffold86730264270.1
Abuxscaffold91570267480.1	atlantia_buxifolia	Abuxscaffold91570267480.1
Abuxscaffold96350279790.1	atlantia_buxifolia	Abuxscaffold96350279790.1
Abuxscaffold96350279900.1	atlantia_buxifolia	Abuxscaffold96350279900.1
Abuxscaffold96350279930.1	atlantia_buxifolia	Abuxscaffold96350279930.1
Abuxscaffold96350279940.1	atlantia_buxifolia	Abuxscaffold96350279940.1
Abuxscaffold97310283280.1	atlantia_buxifolia	Abuxscaffold97310283280.1
Abuxscaffold97310283330.1	atlantia_buxifolia	Abuxscaffold97310283330.1
Abuxscaffold97310283370.1	atlantia_buxifolia	Abuxscaffold97310283370.1
Abuxscaffold97310283380.1	atlantia_buxifolia	Abuxscaffold97310283380.1
Abuxscaffold97310283410.1	atlantia_buxifolia	Abuxscaffold97310283410.1
ANangscaffold_10021950	atrichum_angustatum	ANangscaffold_10021950
ANangscaffold_10022040	atrichum_angustatum	ANangscaffold_10022040
ANangscaffold_10044010	atrichum_angustatum	ANangscaffold_10044010
ANangscaffold_10044100	atrichum_angustatum	ANangscaffold_10044100
ANangscaffold_20087720	atrichum_angustatum	ANangscaffold_20087720
ANangscaffold_20092810	atrichum_angustatum	ANangscaffold_20092810
ANangscaffold_50154960	atrichum_angustatum	ANangscaffold_50154960
ANangscaffold_60213150	atrichum_angustatum	ANangscaffold_60213150
Aand236570042960	aulacomnium_androgynum	Aand236570042960
Aand2380049380	aulacomnium_androgynum	Aand2380049380
Aand2390052840	aulacomnium_androgynum	Aand2390052840
Aand2390052860	aulacomnium_androgynum	Aand2390052860
Aand240660060030	aulacomnium_androgynum	Aand240660060030
Aand240660060050	aulacomnium_androgynum	Aand240660060050
Aand242650068810	aulacomnium_androgynum	Aand242650068810