PlantSME Plant secondary metabolism enzyme database
CAS

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.
Algae
Bryophytes
Lycophytes/Ferns
Gymnosperms
Basal angiosperms
Monocots
Eudicots
Species Distribution
Hordeum vulgare
Triticum turgidum
Aegilops tauschii
Pinus taeda
Related Modules
Steroid pathway
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
GeneSpeciesProtein ID
ara_suecica_KAG7611589.1 arabidopsis_suecica ara_suecica_KAG7611589.1
ara_suecica_KAG7611759.1 arabidopsis_suecica ara_suecica_KAG7611759.1
ara_suecica_KAG7611769.1 arabidopsis_suecica ara_suecica_KAG7611769.1
ara_suecica_KAG7619424.1 arabidopsis_suecica ara_suecica_KAG7619424.1
ara_suecica_KAG7620507.1 arabidopsis_suecica ara_suecica_KAG7620507.1
ara_suecica_KAG7620566.1 arabidopsis_suecica ara_suecica_KAG7620566.1
ara_suecica_KAG7620750.1 arabidopsis_suecica ara_suecica_KAG7620750.1
ara_suecica_KAG7620751.1 arabidopsis_suecica ara_suecica_KAG7620751.1
ara_suecica_KAG7620752.1 arabidopsis_suecica ara_suecica_KAG7620752.1
ara_suecica_KAG7620753.1 arabidopsis_suecica ara_suecica_KAG7620753.1
ara_suecica_KAG7629902.1 arabidopsis_suecica ara_suecica_KAG7629902.1
ara_suecica_KAG7630067.1 arabidopsis_suecica ara_suecica_KAG7630067.1
ara_suecica_KAG7630310.1 arabidopsis_suecica ara_suecica_KAG7630310.1
ara_suecica_KAG7632565.1 arabidopsis_suecica ara_suecica_KAG7632565.1
ara_suecica_KAG7632566.1 arabidopsis_suecica ara_suecica_KAG7632566.1
ara_suecica_KAG7632977.1 arabidopsis_suecica ara_suecica_KAG7632977.1
ara_suecica_KAG7632992.1 arabidopsis_suecica ara_suecica_KAG7632992.1
ara_suecica_KAG7632993.1 arabidopsis_suecica ara_suecica_KAG7632993.1
ara_suecica_KAG7633350.1 arabidopsis_suecica ara_suecica_KAG7633350.1
ara_suecica_KAG7635027.1 arabidopsis_suecica ara_suecica_KAG7635027.1
ara_suecica_KAG7635229.1 arabidopsis_suecica ara_suecica_KAG7635229.1
ara_suecica_KAG7640651.1 arabidopsis_suecica ara_suecica_KAG7640651.1
ara_suecica_KAG7641775.1 arabidopsis_suecica ara_suecica_KAG7641775.1
ara_suecica_KAG7641877.1 arabidopsis_suecica ara_suecica_KAG7641877.1
ara_suecica_KAG7641949.1 arabidopsis_suecica ara_suecica_KAG7641949.1
ara_suecica_KAG7644194.1 arabidopsis_suecica ara_suecica_KAG7644194.1
ara_suecica_KAG7656299.1 arabidopsis_suecica ara_suecica_KAG7656299.1
ara_suecica_KAG7658034.1 arabidopsis_suecica ara_suecica_KAG7658034.1
ara_suecica_KAG7658106.1 arabidopsis_suecica ara_suecica_KAG7658106.1
ara_suecica_KAG7658682.1 arabidopsis_suecica ara_suecica_KAG7658682.1