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
Abu1g_019340.1	atalantia_buxifolia	Abu1g_019340.1
Abu2g_002140.1	atalantia_buxifolia	Abu2g_002140.1
Abu2g_005120.1	atalantia_buxifolia	Abu2g_005120.1
Abu2g_005920.1	atalantia_buxifolia	Abu2g_005920.1
Abu2g_005950.1	atalantia_buxifolia	Abu2g_005950.1
Abu2g_018080.2	atalantia_buxifolia	Abu2g_018080.2
Abu2g_018150.1	atalantia_buxifolia	Abu2g_018150.1
Abu2g_018180.1	atalantia_buxifolia	Abu2g_018180.1
Abu2g_029730.1	atalantia_buxifolia	Abu2g_029730.1
Abu3g_005350.1	atalantia_buxifolia	Abu3g_005350.1
Abu3g_008970.1	atalantia_buxifolia	Abu3g_008970.1
Abu3g_010260.2	atalantia_buxifolia	Abu3g_010260.2
Abu3g_010270.1	atalantia_buxifolia	Abu3g_010270.1
Abu3g_010280.1	atalantia_buxifolia	Abu3g_010280.1
Abu3g_010290.1	atalantia_buxifolia	Abu3g_010290.1
Abu4g_003120.2	atalantia_buxifolia	Abu4g_003120.2
Abu4g_017310.1	atalantia_buxifolia	Abu4g_017310.1
Abu4g_017340.1	atalantia_buxifolia	Abu4g_017340.1
Abu4g_024690.2	atalantia_buxifolia	Abu4g_024690.2
Abu4g_024870.1	atalantia_buxifolia	Abu4g_024870.1
Abu4g_025120.1	atalantia_buxifolia	Abu4g_025120.1
Abu4g_025330.1	atalantia_buxifolia	Abu4g_025330.1
Abu4g_025490.1	atalantia_buxifolia	Abu4g_025490.1
Abu5g_003420.1	atalantia_buxifolia	Abu5g_003420.1
Abu5g_009890.1	atalantia_buxifolia	Abu5g_009890.1
Abu5g_017030.6	atalantia_buxifolia	Abu5g_017030.6
Abu5g_018450.1	atalantia_buxifolia	Abu5g_018450.1
Abu5g_020580.1	atalantia_buxifolia	Abu5g_020580.1
Abu5g_028590.1	atalantia_buxifolia	Abu5g_028590.1
Abu5g_028600.1	atalantia_buxifolia	Abu5g_028600.1