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
asparagus_kiusianus_K1p1ch08g17718	asparagus_kiusianus	asparagus_kiusianus_K1p1ch08g17718
asparagus_kiusianus_K1p1ch10g48792	asparagus_kiusianus	asparagus_kiusianus_K1p1ch10g48792
asparagus_kiusianus_K1p1ch10g49225	asparagus_kiusianus	asparagus_kiusianus_K1p1ch10g49225
asparagus_kiusianus_K1p1ch10g49226	asparagus_kiusianus	asparagus_kiusianus_K1p1ch10g49226
asparagus_kiusianus_K1p1ch10g49315	asparagus_kiusianus	asparagus_kiusianus_K1p1ch10g49315
Aoff01G0005630.1	asparagus_officinalis	Aoff01G0005630.1
Aoff01G0021060.1	asparagus_officinalis	Aoff01G0021060.1
Aoff01G0021070.1	asparagus_officinalis	Aoff01G0021070.1
Aoff01G0032040.1	asparagus_officinalis	Aoff01G0032040.1
Aoff01G0032050.1	asparagus_officinalis	Aoff01G0032050.1
Aoff02G0003300.1	asparagus_officinalis	Aoff02G0003300.1
Aoff02G0003850.1	asparagus_officinalis	Aoff02G0003850.1
Aoff02G0005450.1	asparagus_officinalis	Aoff02G0005450.1
Aoff02G0011450.1	asparagus_officinalis	Aoff02G0011450.1
Aoff03G0014670.1	asparagus_officinalis	Aoff03G0014670.1
Aoff03G0026150.1	asparagus_officinalis	Aoff03G0026150.1
Aoff03G0029560.1	asparagus_officinalis	Aoff03G0029560.1
Aoff04G0000020.1	asparagus_officinalis	Aoff04G0000020.1
Aoff04G0016190.1	asparagus_officinalis	Aoff04G0016190.1
Aoff04G0017180.1	asparagus_officinalis	Aoff04G0017180.1
Aoff05G0007000.1	asparagus_officinalis	Aoff05G0007000.1
Aoff05G0007020.1	asparagus_officinalis	Aoff05G0007020.1
Aoff05G0024800.1	asparagus_officinalis	Aoff05G0024800.1
Aoff05G0027910.1	asparagus_officinalis	Aoff05G0027910.1
Aoff05G0031860.1	asparagus_officinalis	Aoff05G0031860.1
Aoff06G0002290.1	asparagus_officinalis	Aoff06G0002290.1
Aoff06G0002320.1	asparagus_officinalis	Aoff06G0002320.1
Aoff06G0002330.1	asparagus_officinalis	Aoff06G0002330.1
Aoff06G0002360.1	asparagus_officinalis	Aoff06G0002360.1
Aoff06G0008830.1	asparagus_officinalis	Aoff06G0008830.1