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
antirrhinum_hispanicum_GWHPBJVR009258	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR009258
antirrhinum_hispanicum_GWHPBJVR009259	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR009259
antirrhinum_hispanicum_GWHPBJVR009736	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR009736
antirrhinum_hispanicum_GWHPBJVR010214	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR010214
antirrhinum_hispanicum_GWHPBJVR011186	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR011186
antirrhinum_hispanicum_GWHPBJVR012678	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR012678
antirrhinum_hispanicum_GWHPBJVR012679	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR012679
antirrhinum_hispanicum_GWHPBJVR012906	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR012906
antirrhinum_hispanicum_GWHPBJVR013064	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013064
antirrhinum_hispanicum_GWHPBJVR013066	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013066
antirrhinum_hispanicum_GWHPBJVR013067	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013067
antirrhinum_hispanicum_GWHPBJVR013068	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013068
antirrhinum_hispanicum_GWHPBJVR013069	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013069
antirrhinum_hispanicum_GWHPBJVR013072	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013072
antirrhinum_hispanicum_GWHPBJVR013073	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013073
antirrhinum_hispanicum_GWHPBJVR013076	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013076
antirrhinum_hispanicum_GWHPBJVR013078	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013078
antirrhinum_hispanicum_GWHPBJVR013080	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013080
antirrhinum_hispanicum_GWHPBJVR013568	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013568
antirrhinum_hispanicum_GWHPBJVR013569	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013569
antirrhinum_hispanicum_GWHPBJVR013704	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013704
antirrhinum_hispanicum_GWHPBJVR013706	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013706
antirrhinum_hispanicum_GWHPBJVR013710	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013710
antirrhinum_hispanicum_GWHPBJVR013712	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013712
antirrhinum_hispanicum_GWHPBJVR013713	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013713
antirrhinum_hispanicum_GWHPBJVR013715	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR013715
antirrhinum_hispanicum_GWHPBJVR016915	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR016915
antirrhinum_hispanicum_GWHPBJVR017792	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR017792
antirrhinum_hispanicum_GWHPBJVR023315	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR023315
antirrhinum_hispanicum_GWHPBJVR024308	antirrhinum_hispanicum	antirrhinum_hispanicum_GWHPBJVR024308