sphingomyelin (d18:2/23:0, d18:1/23:1, d17:1/24:1)* to 1-stearoyl-2-oleoyl-gpi (18:0/18:1)*

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

Metabolite Accession: GCST90200077
Name: 1-stearoyl-2-oleoyl-gpi (18:0/18:1)*
Hmdb Id: NA
Super Pathway: NA
Sub Pathway: NA
Inchikey: NA

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):
-0.205
Position:
61557803
SE (Ratio):
0.018
Effect Allele:
C
Z-score (Ratio):
-11.126
Reference Allele:
T
-log10(P):
-64.537
MAF:
0.346
Beta (Num):
-0.078
Novel Locus:
No
SE (Num):
0.014
Beta (Den):
0.127
SE (Den):
0.016
No CNV overlap
rQTL cluster:
62
Reaction Distance:
NA
Closest Genes:
TMEM258 MYRF FEN1 FADS2 FADS1

LLM Analysis

Numerator Metabolite Explanation:

Sphingolipid biosynthesis.4[1], 5[2], 6[3]

Denominator Metabolite Explanation:

Glycosylphosphatidylinositol (GPI) anchor biosynthesis.7[1], 8[2]

Ratio Explanation:

This ratio may reflect FADS1/FADS2 activity, which alters the fatty acid pool used for synthesizing both sphingolipids and GPI anchors, thus impacting membrane composition.

Ratio Evidence:

metabolites related through biology

Gene Ratio Phenotype Relationship:

Genetic variants in FADS1/FADS2 alter fatty acid desaturase activity, which can change circulating lipid profiles (cholesterol and triglycerides) and inflammatory responses.1[1], 9[2], 10[3] This is strongly associated with disorders of lipoprotein metabolism, cholelithiasis, and inflammatory conditions like asthma.1[4], 11[5], 12[6], 13[7]

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