rs1047891

Variant in the CPS1 gene (Carbamoyl-Phosphate Synthase 1)

rs1047891 is a single nucleotide polymorphism (SNP) in the CPS1 gene, involved in urea cycle / ammonia detoxification. Variants at this position have been studied in relation to immune function, metabolism, and chronic illness.

This page is for educational and informational purposes only. Not a diagnostic tool. Always consult a qualified healthcare provider.

What is the rs1047891 variant?

rs1047891 is a SNP (single nucleotide polymorphism) in the CPS1 (Carbamoyl-Phosphate Synthase 1) gene. It belongs to the Metabolic category and is part of the Metabolic Regulation biological cluster. CPS1 encodes the mitochondrial carbamoyl-phosphate synthase that initiates the urea cycle, converting ammonia to carbamoyl phosphate.

Biological role and pathway

This variant sits within the CPS1 gene, which is involved in the urea cycle / ammonia detoxification pathway. Genes within the Metabolic Regulation cluster work together to maintain balanced function across interconnected biological systems.

Variants in genes within this pathway may influence an individual's predisposition to altered function — particularly under conditions of physiological stress such as viral infection or prolonged illness.

rs1047891 and Long COVID / ME-CFS research

CPS1 activity affects ammonia detoxification; variants may affect urea cycle function and ammonia metabolism in COVID-19 liver dysfunction relevant to Long COVID neurological symptoms.

This information is based on published research and does not constitute medical advice. See references below.

Parent gene: CPS1

rs1047891 is one of 1 known variant in the CPS1 gene. To understand the full biological context of this variant, explore the parent gene page.

View CPS1 gene page →

Conditions studied in relation to rs1047891

Research into CPS1 variants including rs1047891 has explored associations with the following conditions. These are areas of scientific investigation and do not imply causation.

Genetic insights from DNA data

Consumer DNA files from 23andMe, AncestryDNA, and MyHeritage contain raw SNP data. When you upload your file to ChronicDNA, the analysis engine checks your genotype against a curated panel of 80+ genes selected for their relevance to Long COVID, ME/CFS, and connected biological pathways - some of which may include CPS1 and the rs1047891 variant.

The report is educational - it explains which variants you carry, what the research says about them, and how they fit into the biological pathways most relevant to chronic illness. Results are presented in plain English with appropriate scientific context, no medical jargon, no scare tactics. All results should be discussed with a qualified healthcare provider.

Frequently asked questions

What is the rs1047891 variant in the CPS1 gene?

rs1047891 is a single nucleotide polymorphism (SNP) located in the CPS1 (Carbamoyl-Phosphate Synthase 1) gene, which is involved in urea cycle / ammonia detoxification. CPS1 encodes the mitochondrial carbamoyl-phosphate synthase that initiates the urea cycle, converting ammonia to carbamoyl phosphate.

How may the rs1047891 variant relate to Long COVID or ME/CFS?

CPS1 activity affects ammonia detoxification; variants may affect urea cycle function and ammonia metabolism in COVID-19 liver dysfunction relevant to Long COVID neurological symptoms.

Can a consumer DNA test detect the rs1047891 variant?

Many consumer DNA tests such as 23andMe, AncestryDNA, and MyHeritage genotype common SNPs. ChronicDNA analyses your raw DNA file and reports on variants studied in relation to chronic illness, immune function, and metabolism. This is not a diagnostic service — results are informational and educational only.

Find out if you carry the rs1047891 variant

Upload your DNA data from 23andMe, AncestryDNA, or MyHeritage and receive a personalised report covering >80 genes relevant to Long COVID and ME/CFS.

Get Your Personalised DNA Report

Informational and educational only · Not a diagnostic tool · GDPR compliant

References

The following publications were used in compiling the research context for CPS1 and its variants. This is not an exhaustive literature review.

  • [1]PMID: 33153018
  • [2]Nature Genetics
  • [3]Metabolism