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
Abu5g_033320.2	atalantia_buxifolia	Abu5g_033320.2
Abu5g_040400.1	atalantia_buxifolia	Abu5g_040400.1
Abu7g_013900.1	atalantia_buxifolia	Abu7g_013900.1
Abu7g_014140.2	atalantia_buxifolia	Abu7g_014140.2
Abu8g_007100.1	atalantia_buxifolia	Abu8g_007100.1
Abu8g_007110.1	atalantia_buxifolia	Abu8g_007110.1
Abu8g_007130.1	atalantia_buxifolia	Abu8g_007130.1
Abu8g_013080.1	atalantia_buxifolia	Abu8g_013080.1
Abu8g_013100.1	atalantia_buxifolia	Abu8g_013100.1
Abu9g_005760.1	atalantia_buxifolia	Abu9g_005760.1
Abu9g_022280.1	atalantia_buxifolia	Abu9g_022280.1
Abu9g_022850.1	atalantia_buxifolia	Abu9g_022850.1
Abuxscaffold12970022730.1	atlantia_buxifolia	Abuxscaffold12970022730.1
Abuxscaffold12970022730.2	atlantia_buxifolia	Abuxscaffold12970022730.2
Abuxscaffold12970022730.3	atlantia_buxifolia	Abuxscaffold12970022730.3
Abuxscaffold12970022730.4	atlantia_buxifolia	Abuxscaffold12970022730.4
Abuxscaffold164110056970.1	atlantia_buxifolia	Abuxscaffold164110056970.1
Abuxscaffold164110057020.1	atlantia_buxifolia	Abuxscaffold164110057020.1
Abuxscaffold164110057130.1	atlantia_buxifolia	Abuxscaffold164110057130.1
Abuxscaffold164110057130.2	atlantia_buxifolia	Abuxscaffold164110057130.2
Abuxscaffold173110065280.1	atlantia_buxifolia	Abuxscaffold173110065280.1
Abuxscaffold178370067360.1	atlantia_buxifolia	Abuxscaffold178370067360.1
Abuxscaffold183570070070.1	atlantia_buxifolia	Abuxscaffold183570070070.1
Abuxscaffold183570070070.2	atlantia_buxifolia	Abuxscaffold183570070070.2
Abuxscaffold183570070070.3	atlantia_buxifolia	Abuxscaffold183570070070.3
Abuxscaffold186490071650.1	atlantia_buxifolia	Abuxscaffold186490071650.1
Abuxscaffold188570073750.1	atlantia_buxifolia	Abuxscaffold188570073750.1
Abuxscaffold188570073750.10	atlantia_buxifolia	Abuxscaffold188570073750.10
Abuxscaffold188570073750.11	atlantia_buxifolia	Abuxscaffold188570073750.11
Abuxscaffold188570073750.12	atlantia_buxifolia	Abuxscaffold188570073750.12