1-palmitoyl-2-arachidonoyl-gpe (16:0/20:4)* to 1,2-dilinoleoyl-gpe (18:2/18:2)*

Numerator Metabolite

Structure of 1-palmitoyl-2-arachidonoyl-gpe (16:0/20:4)*
Metabolite Accession: GCST90200054
Name: 1-palmitoyl-2-arachidonoyl-gpe (16:0/20:4)*
Hmdb Id: HMDB0005323
Super Pathway: NA
Sub Pathway: NA
Inchikey: DRIVXEVMDWCWLI

Denominator Metabolite

Structure of 1,2-dilinoleoyl-gpe (18:2/18:2)*
Metabolite Accession: GCST90200068
Name: 1,2-dilinoleoyl-gpe (18:2/18:2)*
Hmdb Id: HMDB0009093
Super Pathway: NA
Sub Pathway: NA
Inchikey: SSCDRSKJTAQNNB

Associated Genomic Regions

Region: rs99780

Click a 'Plot' button in the tables to the right to view a locus plot here.

Clumped rQTL variant

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SNP Summary

Chr:
11
Beta (Ratio):
-0.368
Position:
61596633
SE (Ratio):
0.023
Effect Allele:
T
Z-score (Ratio):
-16.243
Reference Allele:
C
-log10(P):
-134.930
MAF:
0.346
Beta (Num):
-0.140
Novel Locus:
No
SE (Num):
0.016
Beta (Den):
0.227
SE (Den):
0.017
No CNV overlap
rQTL cluster:
62
Reaction Distance:
NA
Closest Genes:
FADS1 FADS2 FEN1 TMEM258 MYRF

LLM Analysis

Numerator Metabolite Explanation:

Glycerophospholipid metabolism

Denominator Metabolite Explanation:

Glycerophospholipid metabolism

Ratio Explanation:

The ratio reflects the desaturation of linoleic acid (18:2) to produce arachidonic acid (20:4) via FADS1/FADS2, a key step in fatty acid metabolism.3[1]

Ratio Evidence:

reaction where the ratio is shared through a pathway

Gene Ratio Phenotype Relationship:

Genetic variation in FADS1/FADS2 alters the balance of pro-inflammatory arachidonic acid and its precursor, linoleic acid.4[1], 3[2] This dysregulation of lipid metabolism is strongly associated with pure hypercholesterolemia, other lipid traits, and inflammatory conditions like asthma.5[3], 4[4]

Phenotype Driver:

Gene-centric:FADS1/FADS2

Downloads

Download the full rQTL summary statistics file for this metabolite ratio. Data contains the loci listed here. For each SNP (chromosome, effect_allele, reference_allele, pos_name, position) these columns contain the summary statistics of the ratio (beta, pgain, pval, se, z), the numerator metabolite (beta_1, pval_1, n_iids_1, effect_allele_frequency_1, se_1, z_1) and the denominator metabolite (beta_2, pval_2, n_iids_2, effect_allele_frequency_2, se_2, z_2)

Download rQTL Data