sphingomyelin (d18:2/23:0, d18:1/23:1, d17:1/24:1)* to 1-(1-enyl-stearoyl)-gpe (p-18:0)*

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: GCST90199910
Name: 1-(1-enyl-stearoyl)-gpe (p-18:0)*
Hmdb Id: NA
Super Pathway: NA
Sub Pathway: NA
Inchikey: NA

Associated Genomic Regions

Region: rs72654473

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:
19
Beta (Ratio):
-0.211
Position:
45414399
SE (Ratio):
0.027
Effect Allele:
A
Z-score (Ratio):
-7.829
Reference Allele:
C
-log10(P):
-32.948
MAF:
0.107
Beta (Num):
-0.096
Novel Locus:
Yes ✔️
SE (Num):
0.022
Beta (Den):
0.116
SE (Den):
0.025
No CNV overlap
rQTL cluster:
8
Reaction Distance:
NA
Closest Genes:
APOE APOC1 TOMM40 PVRL2 APOC4

LLM Analysis

Numerator Metabolite Explanation:

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

Denominator Metabolite Explanation:

Ether lipid (Plasmalogen) synthesis.6[1], 7[2]

Ratio Explanation:

This ratio reflects the balance between sphingolipid and ether lipid metabolism, which is influenced by APOE-mediated lipid transport and metabolism in the circulation.8[1], 9[2], 10[3]

Ratio Evidence:

metabolites related through biology

Gene Ratio Phenotype Relationship:

Genetic variants in APOE, a key lipid transporter, alter circulating levels of sphingomyelins and plasmalogens.8[1], 9[2] This dyslipidemia is a major causal factor for atherosclerosis, hypercholesterolemia, and subsequent ischemic heart disease.11[3], 1[4], 12[5]

Phenotype Driver:

Gene-centric:APOE

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