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
AVeriSctCcfP_1285_25100040090.1 avena_eriantha AVeriSctCcfP_1285_25100040090.1
AVeriSctCcfP_1285_25100058210.1 avena_eriantha AVeriSctCcfP_1285_25100058210.1
AVeriSctCcfP_1285_25100058630.1 avena_eriantha AVeriSctCcfP_1285_25100058630.1
AVeriSctCcfP_1585_30680086800.1 avena_eriantha AVeriSctCcfP_1585_30680086800.1
AVeriSctCcfP_1585_30680086850.1 avena_eriantha AVeriSctCcfP_1585_30680086850.1
AVeriSctCcfP_1585_30680096890.1 avena_eriantha AVeriSctCcfP_1585_30680096890.1
AVeriSctCcfP_1585_30680098170.1 avena_eriantha AVeriSctCcfP_1585_30680098170.1
AVeriSctCcfP_1585_30680099760.1 avena_eriantha AVeriSctCcfP_1585_30680099760.1
AVeriSctCcfP_1585_30680103340.1 avena_eriantha AVeriSctCcfP_1585_30680103340.1
AVeriSctCcfP_1585_30680103800.1 avena_eriantha AVeriSctCcfP_1585_30680103800.1
AVeriSctCcfP_1585_30680103850.1 avena_eriantha AVeriSctCcfP_1585_30680103850.1
AVeriSctCcfP_1585_30680104120.1 avena_eriantha AVeriSctCcfP_1585_30680104120.1
AVeriSctCcfP_1585_30680104130.1 avena_eriantha AVeriSctCcfP_1585_30680104130.1
AVeriSctCcfP_1585_30680104150.1 avena_eriantha AVeriSctCcfP_1585_30680104150.1
AVeriSctCcfP_1585_30680104440.1 avena_eriantha AVeriSctCcfP_1585_30680104440.1
AVeriSctCcfP_1585_30680105830.1 avena_eriantha AVeriSctCcfP_1585_30680105830.1
AVeriSctCcfP_1585_30680106380.1 avena_eriantha AVeriSctCcfP_1585_30680106380.1
AVeriSctCcfP_1585_30680117190.1 avena_eriantha AVeriSctCcfP_1585_30680117190.1
AVeriSctCcfP_2055_39360154660.1 avena_eriantha AVeriSctCcfP_2055_39360154660.1
AVeriSctCcfP_2055_39360157250.1 avena_eriantha AVeriSctCcfP_2055_39360157250.1
AVeriSctCcfP_2055_39360157260.1 avena_eriantha AVeriSctCcfP_2055_39360157260.1
AVeriSctCcfP_2055_39360158120.1 avena_eriantha AVeriSctCcfP_2055_39360158120.1
AVeriSctCcfP_2055_39360163180.1 avena_eriantha AVeriSctCcfP_2055_39360163180.1
AVeriSctCcfP_2055_39360163190.1 avena_eriantha AVeriSctCcfP_2055_39360163190.1
AVeriSctCcfP_2055_39360163300.1 avena_eriantha AVeriSctCcfP_2055_39360163300.1
AVeriSctCcfP_2055_39360163340.1 avena_eriantha AVeriSctCcfP_2055_39360163340.1
AVeriSctCcfP_2055_39360163990.1 avena_eriantha AVeriSctCcfP_2055_39360163990.1
AVeriSctCcfP_2055_39360164250.1 avena_eriantha AVeriSctCcfP_2055_39360164250.1
AVeriSctCcfP_2055_39360175420.1 avena_eriantha AVeriSctCcfP_2055_39360175420.1
AVeriSctCcfP_2055_39360181580.1 avena_eriantha AVeriSctCcfP_2055_39360181580.1