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
arabidopsis_arenosa_CAE6186234.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6186234.1
arabidopsis_arenosa_CAE6192257.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6192257.1
arabidopsis_arenosa_CAE6192272.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6192272.1
arabidopsis_arenosa_CAE6194753.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6194753.1
arabidopsis_arenosa_CAE6195644.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6195644.1
arabidopsis_arenosa_CAE6216479.1 arabidopsis_arenosa arabidopsis_arenosa_CAE6216479.1
AhalFJVB01000625 arabidopsis_halleri AhalFJVB01000625
AhalFJVB01001690 arabidopsis_halleri AhalFJVB01001690
AhalFJVB01001772 arabidopsis_halleri AhalFJVB01001772
Alyrscaffold_10017910.1 arabidopsis_lyrata Alyrscaffold_10017910.1
Alyrscaffold_10330052440.1 arabidopsis_lyrata Alyrscaffold_10330052440.1
Alyrscaffold_10330052450.1 arabidopsis_lyrata Alyrscaffold_10330052450.1
Alyrscaffold_20058370.1 arabidopsis_lyrata Alyrscaffold_20058370.1
Alyrscaffold_20058370.2 arabidopsis_lyrata Alyrscaffold_20058370.2
Alyrscaffold_20066160.1 arabidopsis_lyrata Alyrscaffold_20066160.1
Alyrscaffold_20066620.1 arabidopsis_lyrata Alyrscaffold_20066620.1
Alyrscaffold_20066620.2 arabidopsis_lyrata Alyrscaffold_20066620.2
Alyrscaffold_20067380.1 arabidopsis_lyrata Alyrscaffold_20067380.1
Alyrscaffold_20079330.1 arabidopsis_lyrata Alyrscaffold_20079330.1
Alyrscaffold_20079350.1 arabidopsis_lyrata Alyrscaffold_20079350.1
Alyrscaffold_20079370.1 arabidopsis_lyrata Alyrscaffold_20079370.1
Alyrscaffold_20079870.1 arabidopsis_lyrata Alyrscaffold_20079870.1
Alyrscaffold_20079880.1 arabidopsis_lyrata Alyrscaffold_20079880.1
Alyrscaffold_20079880.2 arabidopsis_lyrata Alyrscaffold_20079880.2
Alyrscaffold_20079890.1 arabidopsis_lyrata Alyrscaffold_20079890.1
Alyrscaffold_20079900.1 arabidopsis_lyrata Alyrscaffold_20079900.1
Alyrscaffold_20080490.1 arabidopsis_lyrata Alyrscaffold_20080490.1
Alyrscaffold_30087000.1 arabidopsis_lyrata Alyrscaffold_30087000.1
Alyrscaffold_30088700.1 arabidopsis_lyrata Alyrscaffold_30088700.1
Alyrscaffold_30099740.1 arabidopsis_lyrata Alyrscaffold_30099740.1