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
Acom16G0002300.1	ananas_comosus	Acom16G0002300.1
Acom16G0002980.1	ananas_comosus	Acom16G0002980.1
Acom17G0003760.1	ananas_comosus	Acom17G0003760.1
Acom20G0004140.1	ananas_comosus	Acom20G0004140.1
Acom20G0004150.1	ananas_comosus	Acom20G0004150.1
Acom20G0004170.1	ananas_comosus	Acom20G0004170.1
Acom21G0006010.1	ananas_comosus	Acom21G0006010.1
Acom23G0002780.1	ananas_comosus	Acom23G0002780.1
Acomscaffold_11760002910.1	ananas_comosus	Acomscaffold_11760002910.1
Acomscaffold_11760002920.1	ananas_comosus	Acomscaffold_11760002920.1
Acomscaffold_8520028680.1	ananas_comosus	Acomscaffold_8520028680.1
Arupctg000677_np121212120032710	andreaea_rupestris	Arupctg000677_np121212120032710
Arupctg000757_np121212120050570	andreaea_rupestris	Arupctg000757_np121212120050570
Arupctg000821_np121212120063080	andreaea_rupestris	Arupctg000821_np121212120063080
Arupctg000951_np121212120092500	andreaea_rupestris	Arupctg000951_np121212120092500
Arupctg001306_np121212120142100	andreaea_rupestris	Arupctg001306_np121212120142100
Arupctg001306_np121212120142140	andreaea_rupestris	Arupctg001306_np121212120142140
Arupctg001362_np121212120152230	andreaea_rupestris	Arupctg001362_np121212120152230
Arupctg001450_np121212120164390	andreaea_rupestris	Arupctg001450_np121212120164390
Arupctg001483_np121212120171100	andreaea_rupestris	Arupctg001483_np121212120171100
Arupctg001630_np121212120192450	andreaea_rupestris	Arupctg001630_np121212120192450
Arupctg001691_np121212120208260	andreaea_rupestris	Arupctg001691_np121212120208260
Arupctg001799_np121212120218730	andreaea_rupestris	Arupctg001799_np121212120218730
Arupctg001800_np121212120221230	andreaea_rupestris	Arupctg001800_np121212120221230
Arupctg001876_np121212120235240	andreaea_rupestris	Arupctg001876_np121212120235240
Arupctg002020_np121212120245810	andreaea_rupestris	Arupctg002020_np121212120245810
Arupctg002059_np121212120251740	andreaea_rupestris	Arupctg002059_np121212120251740
Awil12260022290	andreaea_wilsonii	Awil12260022290
Awil1790049820	andreaea_wilsonii	Awil1790049820
Awil2050054260	andreaea_wilsonii	Awil2050054260