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
Psat05G0031720.1 pisum_sativum Psat05G0031720.1
Psat05G0031740.1 pisum_sativum Psat05G0031740.1
Psat06G0004260.1 pisum_sativum Psat06G0004260.1
Psat06G0004260.2 pisum_sativum Psat06G0004260.2
Psat06G0021430.1 pisum_sativum Psat06G0021430.1
Psat06G0034290.1 pisum_sativum Psat06G0034290.1
Psat07G0024010.1 pisum_sativum Psat07G0024010.1
Pappscaffold_20035300 plagiochasma_appendiculatum Pappscaffold_20035300
Pappscaffold_50122950 plagiochasma_appendiculatum Pappscaffold_50122950
Pappscaffold_50124040 plagiochasma_appendiculatum Pappscaffold_50124040
Psem4113270116980 plagiochila_semidecurrens Psem4113270116980
Psem4245210131360 plagiochila_semidecurrens Psem4245210131360
Pcil2881280041020 plagiomnium_ciliare Pcil2881280041020
Pcil3038470070560 plagiomnium_ciliare Pcil3038470070560
Pcil3123960255840 plagiomnium_ciliare Pcil3123960255840
plantago_major_evm.model.LG01.502 plantago_major plantago_major_evm.model.LG01.502
plantago_major_evm.model.LG01.5790 plantago_major plantago_major_evm.model.LG01.5790
plantago_major_evm.model.LG03.3368 plantago_major plantago_major_evm.model.LG03.3368
plantago_major_evm.model.LG05.4003 plantago_major plantago_major_evm.model.LG05.4003
plantago_major_evm.model.LG05.472 plantago_major plantago_major_evm.model.LG05.472
platycarya_strobilacea_PstrChr01G001012.1 platycarya_strobilacea platycarya_strobilacea_PstrChr01G001012.1
platycarya_strobilacea_PstrChr01G001014.1 platycarya_strobilacea platycarya_strobilacea_PstrChr01G001014.1
platycarya_strobilacea_PstrChr03G001742.1 platycarya_strobilacea platycarya_strobilacea_PstrChr03G001742.1
platycarya_strobilacea_PstrChr05G000287.1 platycarya_strobilacea platycarya_strobilacea_PstrChr05G000287.1
platycarya_strobilacea_PstrChr07G000337.1 platycarya_strobilacea platycarya_strobilacea_PstrChr07G000337.1
platycarya_strobilacea_PstrChr07G001525.1 platycarya_strobilacea platycarya_strobilacea_PstrChr07G001525.1
platycarya_strobilacea_PstrChr08G000244.1 platycarya_strobilacea platycarya_strobilacea_PstrChr08G000244.1
platycarya_strobilacea_PstrChr08G000245.1 platycarya_strobilacea platycarya_strobilacea_PstrChr08G000245.1
platycarya_strobilacea_PstrChr08G000246.1 platycarya_strobilacea platycarya_strobilacea_PstrChr08G000246.1
platycarya_strobilacea_PstrChr08G001098.1 platycarya_strobilacea platycarya_strobilacea_PstrChr08G001098.1