n-acetylputrescine to 2r,3r-dihydroxybutyrate

Numerator Metabolite

Structure of n-acetylputrescine
Metabolite Accession: GCST90200351
Name: n-acetylputrescine
Hmdb Id: HMDB0002064
Super Pathway: NA
Sub Pathway: NA
Inchikey: KLZGKIDSEJWEDW

Denominator Metabolite

Structure of 2r,3r-dihydroxybutyrate
Metabolite Accession: GCST90199889
Name: 2r,3r-dihydroxybutyrate
Hmdb Id: HMDB0000498
Super Pathway: NA
Sub Pathway: NA
Inchikey: LOUGYXZSURQALL

Associated Genomic Regions

Region: rs1047891

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:
2
Beta (Ratio):
0.223
Position:
211540507
SE (Ratio):
0.021
Effect Allele:
A
Z-score (Ratio):
10.852
Reference Allele:
C
-log10(P):
-61.498
MAF:
0.310
Beta (Num):
0.071
Novel Locus:
No
SE (Num):
0.016
Beta (Den):
-0.152
SE (Den):
0.017
No CNV overlap
rQTL cluster:
140
Reaction Distance:
NA
Closest Genes:
CPS1 LANCL1 MYL1 ACADL KANSL1L

LLM Analysis

Numerator Metabolite Explanation:

Polyamine metabolism.6[1], 7[2], 8[3], 9[4]

Denominator Metabolite Explanation:

Fatty acid oxidation.10[1]

Ratio Explanation:

The ratio may reflect a disruption in nitrogen disposal pathways (urea cycle and polyamines) relative to energy metabolism, likely driven by impaired CPS1 function.6[1], 11[2], 12[3], 13[4]

Ratio Evidence:

metabolites related through biology

Gene Ratio Phenotype Relationship:

A missense variant in CPS1, a critical urea cycle enzyme, likely impairs ammonia detoxification.3[1], 1[2], 14[3], 15[4] This systemic metabolic stress can manifest as renal failure and cholelithiasis, with the altered metabolite ratio reflecting this underlying genetic defect and consequent metabolic dysregulation.

Phenotype Driver:

Gene-centric:CPS1

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