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
Abuxscaffold251190131980.1	atlantia_buxifolia	Abuxscaffold251190131980.1
Abuxscaffold251190132050.1	atlantia_buxifolia	Abuxscaffold251190132050.1
Abuxscaffold253490139960.1	atlantia_buxifolia	Abuxscaffold253490139960.1
Abuxscaffold253490139970.1	atlantia_buxifolia	Abuxscaffold253490139970.1
Abuxscaffold253490139980.1	atlantia_buxifolia	Abuxscaffold253490139980.1
Abuxscaffold253490139990.1	atlantia_buxifolia	Abuxscaffold253490139990.1
Abuxscaffold253490140000.1	atlantia_buxifolia	Abuxscaffold253490140000.1
Abuxscaffold253490140010.1	atlantia_buxifolia	Abuxscaffold253490140010.1
Abuxscaffold262410147550.1	atlantia_buxifolia	Abuxscaffold262410147550.1
Abuxscaffold271950158860.1	atlantia_buxifolia	Abuxscaffold271950158860.1
Abuxscaffold280810163240.1	atlantia_buxifolia	Abuxscaffold280810163240.1
Abuxscaffold293010176000.1	atlantia_buxifolia	Abuxscaffold293010176000.1
Abuxscaffold293090178840.1	atlantia_buxifolia	Abuxscaffold293090178840.1
Abuxscaffold293090178870.1	atlantia_buxifolia	Abuxscaffold293090178870.1
Abuxscaffold293190179640.1	atlantia_buxifolia	Abuxscaffold293190179640.1
Abuxscaffold32210185320.1	atlantia_buxifolia	Abuxscaffold32210185320.1
Abuxscaffold32210185330.1	atlantia_buxifolia	Abuxscaffold32210185330.1
Abuxscaffold34170187150.1	atlantia_buxifolia	Abuxscaffold34170187150.1
Abuxscaffold34170188260.1	atlantia_buxifolia	Abuxscaffold34170188260.1
Abuxscaffold34170188260.2	atlantia_buxifolia	Abuxscaffold34170188260.2
Abuxscaffold34170188260.3	atlantia_buxifolia	Abuxscaffold34170188260.3
Abuxscaffold40170199140.1	atlantia_buxifolia	Abuxscaffold40170199140.1
Abuxscaffold45050205120.1	atlantia_buxifolia	Abuxscaffold45050205120.1
Abuxscaffold45050205120.2	atlantia_buxifolia	Abuxscaffold45050205120.2
Abuxscaffold45050205120.3	atlantia_buxifolia	Abuxscaffold45050205120.3
Abuxscaffold45050205120.4	atlantia_buxifolia	Abuxscaffold45050205120.4
Abuxscaffold45050205120.5	atlantia_buxifolia	Abuxscaffold45050205120.5
Abuxscaffold45050205120.6	atlantia_buxifolia	Abuxscaffold45050205120.6
Abuxscaffold45050205120.7	atlantia_buxifolia	Abuxscaffold45050205120.7
Abuxscaffold45050205120.8	atlantia_buxifolia	Abuxscaffold45050205120.8