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
Aaltescaffold_60433280 archidium_alternifolium Aaltescaffold_60433280
Aaltescaffold_70451600 archidium_alternifolium Aaltescaffold_70451600
Aaltescaffold_70465090 archidium_alternifolium Aaltescaffold_70465090
Aaltescaffold_80481650 archidium_alternifolium Aaltescaffold_80481650
Aaltescaffold_80489660 archidium_alternifolium Aaltescaffold_80489660
Aaltescaffold_90509180 archidium_alternifolium Aaltescaffold_90509180
arctium_lappa_Alap.ptg000001l.g1017.t1 arctium_lappa arctium_lappa_Alap.ptg000001l.g1017.t1
arctium_lappa_Alap.ptg000002l.g4294.t1 arctium_lappa arctium_lappa_Alap.ptg000002l.g4294.t1
arctium_lappa_Alap.ptg000002l.g4302.t1 arctium_lappa arctium_lappa_Alap.ptg000002l.g4302.t1
arctium_lappa_Alap.ptg000002l.g4305.t1 arctium_lappa arctium_lappa_Alap.ptg000002l.g4305.t1
arctium_lappa_Alap.ptg000002l.g4306.t1 arctium_lappa arctium_lappa_Alap.ptg000002l.g4306.t1
arctium_lappa_Alap.ptg000004l.g1360.t1 arctium_lappa arctium_lappa_Alap.ptg000004l.g1360.t1
arctium_lappa_Alap.ptg000005l.g2875.t1 arctium_lappa arctium_lappa_Alap.ptg000005l.g2875.t1
arctium_lappa_Alap.ptg000005l.g3589.t1 arctium_lappa arctium_lappa_Alap.ptg000005l.g3589.t1
arctium_lappa_Alap.ptg000005l.g3591.t1 arctium_lappa arctium_lappa_Alap.ptg000005l.g3591.t1
arctium_lappa_Alap.ptg000005l.g3593.t1 arctium_lappa arctium_lappa_Alap.ptg000005l.g3593.t1
arctium_lappa_Alap.ptg000005l.g3594.t1 arctium_lappa arctium_lappa_Alap.ptg000005l.g3594.t1
arctium_lappa_Alap.ptg000005l.g4404.t1 arctium_lappa arctium_lappa_Alap.ptg000005l.g4404.t1
arctium_lappa_Alap.ptg000005l.g4406.t1 arctium_lappa arctium_lappa_Alap.ptg000005l.g4406.t1
arctium_lappa_Alap.ptg000007l.g3527.t1 arctium_lappa arctium_lappa_Alap.ptg000007l.g3527.t1
arctium_lappa_Alap.ptg000007l.g563.t1 arctium_lappa arctium_lappa_Alap.ptg000007l.g563.t1
arctium_lappa_Alap.ptg000008l.g1279.t1 arctium_lappa arctium_lappa_Alap.ptg000008l.g1279.t1
arctium_lappa_Alap.ptg000008l.g1323.t1 arctium_lappa arctium_lappa_Alap.ptg000008l.g1323.t1
arctium_lappa_Alap.ptg000009l.g2152.t1 arctium_lappa arctium_lappa_Alap.ptg000009l.g2152.t1
arctium_lappa_Alap.ptg000009l.g2251.t1 arctium_lappa arctium_lappa_Alap.ptg000009l.g2251.t1
arctium_lappa_Alap.ptg000009l.g2779.t1 arctium_lappa arctium_lappa_Alap.ptg000009l.g2779.t1
arctium_lappa_Alap.ptg000009l.g3087.t1 arctium_lappa arctium_lappa_Alap.ptg000009l.g3087.t1
arctium_lappa_Alap.ptg000009l.g3089.t1 arctium_lappa arctium_lappa_Alap.ptg000009l.g3089.t1
arctium_lappa_Alap.ptg000009l.g3831.t1 arctium_lappa arctium_lappa_Alap.ptg000009l.g3831.t1
arctium_lappa_Alap.ptg000011l.g3445.t1 arctium_lappa arctium_lappa_Alap.ptg000011l.g3445.t1