dihomo-linoleate (20:2n6) to docosapentaenoate n3 DPA; 22:5n3

Numerator Metabolite

Structure of dihomo-linoleate (20:2n6)
Metabolite Accession: GCST90200320
Name: dihomo-linoleate (20:2n6)
Hmdb Id: HMDB0005060
Super Pathway: NA
Sub Pathway: NA
Inchikey: XSXIVVZCUAHUJO

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: rs174567

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):
0.161
Position:
61593005
SE (Ratio):
0.008
Effect Allele:
G
Z-score (Ratio):
20.715
Reference Allele:
A
-log10(P):
-217.807
MAF:
0.346
Beta (Num):
0.023
Novel Locus:
No
SE (Num):
0.016
Beta (Den):
-0.138
SE (Den):
0.015
No CNV overlap
rQTL cluster:
62
Reaction Distance:
NA
Closest Genes:
FADS1 FADS2 FEN1 TMEM258 MYRF

LLM Analysis

Numerator Metabolite Explanation:

Omega-6 fatty acid metabolism3[1]

Denominator Metabolite Explanation:

Omega-3 fatty acid metabolism4[1], 5[2]

Ratio Explanation:

The ratio reflects the relative activity of FADS enzymes in the competing omega-6 and omega-3 fatty acid synthesis pathways, influencing inflammatory processes.1[1], 2[2], 6[3]

Ratio Evidence:

metabolites related through biology

Gene Ratio Phenotype Relationship:

Genetic variation in FADS1/FADS2 alters polyunsaturated fatty acid metabolism.6[1] This imbalance, reflected by the ratio, can affect the composition of skin lipids like sebum, potentially contributing to the inflammation and hyperkeratinization seen in follicular cysts.7[2], 8[3], 9[4], 10[5]

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