sphingomyelin (d18:2/23:0, d18:1/23:1, d17:1/24:1)* to 1-palmitoleoyl-2-linolenoyl-gpc (16:1/18:3)*

Numerator Metabolite

Metabolite Accession: GCST90200033
Name: sphingomyelin (d18:2/23:0, d18:1/23:1, d17:1/24:1)*
Hmdb Id: NA
Super Pathway: NA
Sub Pathway: NA
Inchikey: NA

Denominator Metabolite

Structure of 1-palmitoleoyl-2-linolenoyl-gpc (16:1/18:3)*
Metabolite Accession: GCST90200102
Name: 1-palmitoleoyl-2-linolenoyl-gpc (16:1/18:3)*
Hmdb Id: HMDB0008008
Super Pathway: NA
Sub Pathway: NA
Inchikey: MMUCLZZSNHBNFL

Associated Genomic Regions

Region: rs102275

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):
-0.342
Position:
61557803
SE (Ratio):
0.018
Effect Allele:
C
Z-score (Ratio):
-19.033
Reference Allele:
T
-log10(P):
-184.301
MAF:
0.346
Beta (Num):
-0.078
Novel Locus:
No
SE (Num):
0.014
Beta (Den):
0.265
SE (Den):
0.015
No CNV overlap
rQTL cluster:
62
Reaction Distance:
NA
Closest Genes:
TMEM258 MYRF FEN1 FADS2 FADS1

LLM Analysis

Numerator Metabolite Explanation:

Sphingolipid metabolism, Ceramide synthesis.4[1], 5[2], 6[3]

Denominator Metabolite Explanation:

Glycerophospholipid metabolism, Fatty acid desaturation.7[1], 8[2], 9[3]

Ratio Explanation:

Reflects FADS-mediated fatty acid desaturation, influencing the balance of fatty acids incorporated into sphingolipids versus glycerophospholipids, altering membrane composition and lipid signaling.2[1], 10[2], 3[3]

Ratio Evidence:

metabolites related through biology

Gene Ratio Phenotype Relationship:

FADS1/FADS2 variants alter polyunsaturated fatty acid metabolism, affecting the SM/PC balance. This dysregulates lipid profiles and inflammatory pathways, increasing risk for hypercholesterolemia, thrombosis (phlebitis, pulmonary embolism), and inflammatory conditions like IBD.2[1], 11[2], 12[3], 10[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