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
XP_015890455.1[Ziziphus ziziphus_jujuba XP_015890455.1[Ziziphus
XP_015891029.1[Ziziphus ziziphus_jujuba XP_015891029.1[Ziziphus
XP_015893262.1[Ziziphus ziziphus_jujuba XP_015893262.1[Ziziphus
XP_015893296.1[Ziziphus ziziphus_jujuba XP_015893296.1[Ziziphus
XP_015893322.1[Ziziphus ziziphus_jujuba XP_015893322.1[Ziziphus
XP_015893340.1[Ziziphus ziziphus_jujuba XP_015893340.1[Ziziphus
Zmar06G0001900.1 zostera_marina Zmar06G0001900.1
ZjapZjn_sc00002.10023960 zoysia_japonica ZjapZjn_sc00002.10023960
ZjapZjn_sc00003.10039920 zoysia_japonica ZjapZjn_sc00003.10039920
zoysia_matrella_Zmw_sc01070.1.g00120.1.am.mkhc zoysia_matrella zoysia_matrella_Zmw_sc01070.1.g00120.1.am.mkhc
zoysia_matrella_Zmw_sc01608.1.g00100.1.am.mkhc zoysia_matrella zoysia_matrella_Zmw_sc01608.1.g00100.1.am.mkhc
zoysia_matrella_Zmw_sc06522.1.g00040.1.am.mkhc zoysia_matrella zoysia_matrella_Zmw_sc06522.1.g00040.1.am.mkhc
ZPZ_r1.0_Zpz_sc00007.1.g01130.1.am.mkhc zoysia_pacifica ZPZ_r1.0_Zpz_sc00007.1.g01130.1.am.mkhc
ZPZ_r1.0_Zpz_sc00236.1.g00330.1.am.mkhc zoysia_pacifica ZPZ_r1.0_Zpz_sc00236.1.g00330.1.am.mkhc
acacia_pycnantha_KAI9077647.1 acacia_pycnantha acacia_pycnantha_KAI9077647.1
acer_truncatum_Atru.chr7.1632 acer_truncatum acer_truncatum_Atru.chr7.1632
Acyan05G0096200.1 acer_yangbiense Acyan05G0096200.1
Acyan07G0063900.1 acer_yangbiense Acyan07G0063900.1
aconitum_vilmorinianum_GWHPBRAL044170 aconitum_vilmorinianum aconitum_vilmorinianum_GWHPBRAL044170
aconitum_vilmorinianum_GWHPBRAL045990 aconitum_vilmorinianum aconitum_vilmorinianum_GWHPBRAL045990
acorus_americanus_Acora.08G030500.1.p acorus_americanus acorus_americanus_Acora.08G030500.1.p
acorus_gramineus_AGRA_17627 acorus_gramineus acorus_gramineus_AGRA_17627
ATA7.244.t1 acorus_tatarinowii ATA7.244.t1
Aurv8776810179460 acrobolbus_urvilleanus Aurv8776810179460
Atau1DG0047130.1 aegilops_tauschii Atau1DG0047130.1
Atau1DG0047130.10 aegilops_tauschii Atau1DG0047130.10
Atau1DG0047130.11 aegilops_tauschii Atau1DG0047130.11
Atau1DG0047130.12 aegilops_tauschii Atau1DG0047130.12
Atau1DG0047130.13 aegilops_tauschii Atau1DG0047130.13
Atau1DG0047130.14 aegilops_tauschii Atau1DG0047130.14