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
AtriAmTr_v1.0_scaffold000320099490.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000320099490.1
AtriAmTr_v1.0_scaffold000320099620.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000320099620.1
AtriAmTr_v1.0_scaffold000330102820.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000330102820.1
AtriAmTr_v1.0_scaffold000430120150.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000430120150.1
AtriAmTr_v1.0_scaffold000430120160.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000430120160.1
AtriAmTr_v1.0_scaffold000430120200.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000430120200.1
AtriAmTr_v1.0_scaffold000430120210.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000430120210.1
AtriAmTr_v1.0_scaffold000620159830.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000620159830.1
AtriAmTr_v1.0_scaffold000660165710.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000660165710.1
AtriAmTr_v1.0_scaffold000660165930.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000660165930.1
AtriAmTr_v1.0_scaffold000660165980.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000660165980.1
AtriAmTr_v1.0_scaffold000660166200.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000660166200.1
AtriAmTr_v1.0_scaffold000710174800.1 amborella_trichopoda AtriAmTr_v1.0_scaffold000710174800.1
AtriAmTr_v1.0_scaffold001030208900.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001030208900.1
AtriAmTr_v1.0_scaffold001190221680.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001190221680.1
AtriAmTr_v1.0_scaffold001690246620.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001690246620.1
AtriAmTr_v1.0_scaffold001690246640.1 amborella_trichopoda AtriAmTr_v1.0_scaffold001690246640.1
AtriAmTr_v1.0_scaffold002030253830.1 amborella_trichopoda AtriAmTr_v1.0_scaffold002030253830.1
AtriAmTr_v1.0_scaffold002030253840.1 amborella_trichopoda AtriAmTr_v1.0_scaffold002030253840.1
AtriAmTr_v1.0_scaffold002030253860.1 amborella_trichopoda AtriAmTr_v1.0_scaffold002030253860.1
AtriAmTr_v1.0_scaffold002600256440.1 amborella_trichopoda AtriAmTr_v1.0_scaffold002600256440.1
AtriAmTr_v1.0_scaffold003520258010.1 amborella_trichopoda AtriAmTr_v1.0_scaffold003520258010.1
AtriAmTr_v1.0_scaffold014630262000.1 amborella_trichopoda AtriAmTr_v1.0_scaffold014630262000.1
AtriAmTr_v1.0_scaffold040750266360.1 amborella_trichopoda AtriAmTr_v1.0_scaffold040750266360.1
AnanContig000100002500.1 ammopiptanthus_nanus AnanContig000100002500.1
AnanContig000100002530.1 ammopiptanthus_nanus AnanContig000100002530.1
AnanContig000100002540.1 ammopiptanthus_nanus AnanContig000100002540.1
AnanContig000260015880.1 ammopiptanthus_nanus AnanContig000260015880.1
AnanContig000440025590.1 ammopiptanthus_nanus AnanContig000440025590.1
AnanContig000440025600.1 ammopiptanthus_nanus AnanContig000440025600.1