sphingomyelin (d18:1/22:1, d18:2/22:0, d16:1/24:1)* to 1-linoleoyl-gpc (18:2)

Numerator Metabolite

Structure of sphingomyelin (d18:1/22:1, d18:2/22:0, d16:1/24:1)*
Metabolite Accession: GCST90200010
Name: sphingomyelin (d18:1/22:1, d18:2/22:0, d16:1/24:1)*
Hmdb Id: HMDB0012104
Super Pathway: NA
Sub Pathway: NA
Inchikey: VBFKEZGCUWHGSK

Denominator Metabolite

Structure of 1-linoleoyl-gpc (18:2)
Metabolite Accession: GCST90199742
Name: 1-linoleoyl-gpc (18:2)
Hmdb Id: HMDB0010386
Super Pathway: NA
Sub Pathway: NA
Inchikey: SPJFYYJXNPEZDW

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):
-0.227
Position:
61557803
SE (Ratio):
0.019
Effect Allele:
C
Z-score (Ratio):
-12.168
Reference Allele:
T
-log10(P):
-76.760
MAF:
0.346
Beta (Num):
-0.106
Novel Locus:
No
SE (Num):
0.015
Beta (Den):
0.121
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 synthesis/metabolism.3[1], 4[2], 5[3]

Denominator Metabolite Explanation:

Glycerophospholipid metabolism, Linoleate metabolism.6[1], 7[2]

Ratio Explanation:

The ratio reflects the balance in the synthesis of complex lipids, influenced by FADS enzymes which desaturate fatty acids for incorporation into both sphingomyelins and glycerophospholipids.8[1], 9[2]

Ratio Evidence:

reaction where the ratio is shared through a pathway

Gene Ratio Phenotype Relationship:

Variations in FADS1/FADS2 genes alter fatty acid desaturation, affecting the sphingomyelin to 1-linoleoyl-gpc ratio.8[1], 9[2] This dysregulated lipid metabolism is linked to hypercholesterolemia, cholelithiasis, and inflammatory conditions like asthma and inflammatory bowel disease.10[3], 11[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