1,2-dilinoleoyl-gpc (18:2/18:2) to 1-stearoyl-2-docosahexaenoyl-gpc (18:0/22:6)

Numerator Metabolite

Structure of 1,2-dilinoleoyl-gpc (18:2/18:2)
Metabolite Accession: GCST90200030
Name: 1,2-dilinoleoyl-gpc (18:2/18:2)
Hmdb Id: HMDB0008138
Super Pathway: NA
Sub Pathway: NA
Inchikey: FVXDQWZBHIXIEJ

Denominator Metabolite

Structure of 1-stearoyl-2-docosahexaenoyl-gpc (18:0/22:6)
Metabolite Accession: GCST90200046
Name: 1-stearoyl-2-docosahexaenoyl-gpc (18:0/22:6)
Hmdb Id: HMDB0008057
Super Pathway: NA
Sub Pathway: NA
Inchikey: FAUYAENFVCNTAL

Associated Genomic Regions

Region: rs174546

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):
0.543
Position:
61569830
SE (Ratio):
0.025
Effect Allele:
T
Z-score (Ratio):
21.709
Reference Allele:
C
-log10(P):
-238.952
MAF:
0.340
Beta (Num):
0.295
Novel Locus:
No
SE (Num):
0.016
Beta (Den):
-0.247
SE (Den):
0.015
No CNV overlap
rQTL cluster:
62
Reaction Distance:
NA
Closest Genes:
FADS2 FADS1 FEN1 TMEM258 MYRF

LLM Analysis

Numerator Metabolite Explanation:

Glycerophospholipid metabolism, Linoleic acid metabolism.4[1]

Denominator Metabolite Explanation:

Glycerophospholipid metabolism, Alpha-Linolenic acid metabolism.5[1], 6[2], 7[3]

Ratio Explanation:

This ratio compares a phosphatidylcholine containing omega-6 linoleic acid (18:2) with one containing omega-3 docosahexaenoic acid (22:6), reflecting the relative activity of FADS-mediated PUFA synthesis pathways.

Ratio Evidence:

reaction where the ratio is shared through a pathway

Gene Ratio Phenotype Relationship:

Genetic variation in FADS1/FADS2 alters the balance of omega-6 and omega-3 fatty acids, reflected in this ratio. This imbalance is causally linked to pure hypercholesterolemia and follicular cysts, likely through modulating lipid homeostasis and inflammatory pathways.8[1], 9[2], 10[3]

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