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_670_13520404710.1 avena_eriantha AVeriSctCcfP_670_13520404710.1
AVeriSctCcfP_670_13520404990.1 avena_eriantha AVeriSctCcfP_670_13520404990.1
AVeriSctCcfP_670_13520407460.1 avena_eriantha AVeriSctCcfP_670_13520407460.1
AVeriSctCcfP_670_13520407950.1 avena_eriantha AVeriSctCcfP_670_13520407950.1
AVeriSctCcfP_670_13520408370.1 avena_eriantha AVeriSctCcfP_670_13520408370.1
AVeriSctCcfP_670_13520408400.1 avena_eriantha AVeriSctCcfP_670_13520408400.1
AVeriSctCcfP_670_13520440370.1 avena_eriantha AVeriSctCcfP_670_13520440370.1
AVeriSctCcfP_670_13520445310.1 avena_eriantha AVeriSctCcfP_670_13520445310.1
AVeriSctCcfP_670_13520452390.1 avena_eriantha AVeriSctCcfP_670_13520452390.1
AVeriSctCcfP_670_13520454590.1 avena_eriantha AVeriSctCcfP_670_13520454590.1
AVeriSctCcfP_670_13520462630.1 avena_eriantha AVeriSctCcfP_670_13520462630.1
AVeriSctCcfP_670_13520463090.1 avena_eriantha AVeriSctCcfP_670_13520463090.1
AVESA.00010b.r1.1AG0022760.1 avena_sativa AVESA.00010b.r1.1AG0022760.1
AVESA.00010b.r1.1AG0027010.2 avena_sativa AVESA.00010b.r1.1AG0027010.2
AVESA.00010b.r1.1AG0027020.1 avena_sativa AVESA.00010b.r1.1AG0027020.1
AVESA.00010b.r1.1AG0027050.1 avena_sativa AVESA.00010b.r1.1AG0027050.1
AVESA.00010b.r1.1AG0029970.1 avena_sativa AVESA.00010b.r1.1AG0029970.1
AVESA.00010b.r1.1AG0029980.1 avena_sativa AVESA.00010b.r1.1AG0029980.1
AVESA.00010b.r1.1AG0029990.1 avena_sativa AVESA.00010b.r1.1AG0029990.1
AVESA.00010b.r1.1AG0030030.1 avena_sativa AVESA.00010b.r1.1AG0030030.1
AVESA.00010b.r1.1AG0056650.2 avena_sativa AVESA.00010b.r1.1AG0056650.2
AVESA.00010b.r1.1AG0075290.1 avena_sativa AVESA.00010b.r1.1AG0075290.1
AVESA.00010b.r1.1AG0077490.1 avena_sativa AVESA.00010b.r1.1AG0077490.1
AVESA.00010b.r1.1AG0077690.1 avena_sativa AVESA.00010b.r1.1AG0077690.1
AVESA.00010b.r1.1CG0082750.6 avena_sativa AVESA.00010b.r1.1CG0082750.6
AVESA.00010b.r1.1CG0108160.1 avena_sativa AVESA.00010b.r1.1CG0108160.1
AVESA.00010b.r1.1CG0112300.1 avena_sativa AVESA.00010b.r1.1CG0112300.1
AVESA.00010b.r1.1CG0115660.1 avena_sativa AVESA.00010b.r1.1CG0115660.1
AVESA.00010b.r1.1CG0118060.1 avena_sativa AVESA.00010b.r1.1CG0118060.1
AVESA.00010b.r1.1CG0118100.1 avena_sativa AVESA.00010b.r1.1CG0118100.1