PlantSME Plant secondary metabolism enzyme database
SQE

SQE

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 SQE.

Lineage Coverage
Detected in 773 of 789 public species; click a lineage to inspect its species list.
Algae
Bryophytes
Lycophytes/Ferns
Gymnosperms
Basal angiosperms
Monocots
Eudicots
Species Distribution
Fragaria ananassa
Fragaria chiloensis
Rosa multiflora
Gossypium raimondii
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 4569 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
AVESA.00010b.r1.7AG1244580.1 avena_sativa AVESA.00010b.r1.7AG1244580.1
AVESA.00010b.r1.7DG1363520.1 avena_sativa AVESA.00010b.r1.7DG1363520.1
AVESA.00010b.r1.UnG1440480.1 avena_sativa AVESA.00010b.r1.UnG1440480.1
Acar06G0002980.1 averrhoa_carambola Acar06G0002980.1
Acar06G0002990.1 averrhoa_carambola Acar06G0002990.1
Acar07G0006500.1 averrhoa_carambola Acar07G0006500.1
Acar08G0000750.1 averrhoa_carambola Acar08G0000750.1
Acar08G0004750.1 averrhoa_carambola Acar08G0004750.1
Acar11G0013800.1 averrhoa_carambola Acar11G0013800.1
avicennia_marina_AM_12012 avicennia_marina avicennia_marina_AM_12012
avicennia_marina_AM_16385 avicennia_marina avicennia_marina_AM_16385
avicennia_marina_AM_18996 avicennia_marina avicennia_marina_AM_18996
avicennia_marina_AM_20055 avicennia_marina avicennia_marina_AM_20055
avicennia_marina_AM_29539 avicennia_marina avicennia_marina_AM_29539
avicennia_marina_AM_29541 avicennia_marina avicennia_marina_AM_29541
avicennia_marina_AM_31922 avicennia_marina avicennia_marina_AM_31922
avicennia_marina_AM_33427 avicennia_marina avicennia_marina_AM_33427
AfilAzfi_s02710151350 azolla_filiculoides AfilAzfi_s02710151350
balanophora_fungosa_var._globosa_BALA01133 balanophora_fungosa_var_globosa balanophora_fungosa_var._globosa_BALA01133
balanophora_fungosa_var._globosa_BALA02379 balanophora_fungosa_var_globosa balanophora_fungosa_var._globosa_BALA02379
balanophora_subcupularis_BAL09037 balanophora_subcupularis balanophora_subcupularis_BAL09037
BAvulContig12860027890.1 barbarea_vulgaris BAvulContig12860027890.1
BAvulContig1800063550.1 barbarea_vulgaris BAvulContig1800063550.1
BAvulContig2100079060.1 barbarea_vulgaris BAvulContig2100079060.1
BAvulContig2100079070.1 barbarea_vulgaris BAvulContig2100079070.1
BAvulContig2800112310.1 barbarea_vulgaris BAvulContig2800112310.1
BAvulContig5790192280.1 barbarea_vulgaris BAvulContig5790192280.1
BAvulContig5790192290.1 barbarea_vulgaris BAvulContig5790192290.1
BAvulContig720220510.1 barbarea_vulgaris BAvulContig720220510.1
BAampscaffold_120052750 barbula_amplexifolia BAampscaffold_120052750