1-linoleoyl-gpi (18:2)* to docosapentaenoate n3 DPA; 22:5n3

Numerator Metabolite

Structure of 1-linoleoyl-gpi (18:2)*
Metabolite Accession: GCST90199821
Name: 1-linoleoyl-gpi (18:2)*
Hmdb Id: HMDB0240597
Super Pathway: NA
Sub Pathway: NA
Inchikey: SAHCQBPGXQFTRA

Denominator Metabolite

Structure of docosapentaenoate (n3 dpa; 22:5n3)
Metabolite Accession: GCST90199713
Name: docosapentaenoate (n3 dpa; 22:5n3)
Hmdb Id: HMDB0006528
Super Pathway: NA
Sub Pathway: NA
Inchikey: YUFFSWGQGVEMMI

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):
0.307
Position:
61569830
SE (Ratio):
0.020
Effect Allele:
T
Z-score (Ratio):
15.633
Reference Allele:
C
-log10(P):
-125.167
MAF:
0.340
Beta (Num):
0.165
Novel Locus:
No
SE (Num):
0.016
Beta (Den):
-0.142
SE (Den):
0.016
No CNV overlap
rQTL cluster:
62
Reaction Distance:
NA
Closest Genes:
FADS2 FADS1 FEN1 TMEM258 MYRF

LLM Analysis

Numerator Metabolite Explanation:

Glycerophospholipid metabolism.4[1], 5[2]

Denominator Metabolite Explanation:

Polyunsaturated fatty acid biosynthesis.6[1], 7[2]

Ratio Explanation:

The ratio of 1-linoleoyl-gpi (18:2) to docosapentaenoate (22:5n3) reflects the enzymatic efficiency of the FADS-mediated conversion of precursor fatty acids to elongated PUFAs.8[1], 9[2]

Ratio Evidence:

reaction where the ratio is shared through a pathway

Gene Ratio Phenotype Relationship:

Genetic variants in FADS1/FADS2 alter desaturase activity, impacting the balance of omega-3 and omega-6 fatty acids.10[1], 11[2], 12[3] This dysregulation is linked to inflammatory conditions like asthma and IBD, and disorders of lipid metabolism, which are among the observed phenotypes.13[4], 10[5], 14[6]

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