rs4148496
Variant in the CHST3 gene (Carbohydrate Sulfotransferase 3)
rs4148496 is a single nucleotide polymorphism (SNP) in the CHST3 gene, involved in chondroitin sulfate biosynthesis / ECM. 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 rs4148496 variant?
rs4148496 is a SNP (single nucleotide polymorphism) in the CHST3 (Carbohydrate Sulfotransferase 3) gene. It belongs to the Connective Tissue category and is part of the Coagulation & Microcirculation biological cluster. CHST3 encodes chondroitin 6-O-sulfotransferase 1, which modifies chondroitin sulfate proteoglycans in the extracellular matrix.
Biological role and pathway
This variant sits within the CHST3 gene, which is involved in the chondroitin sulfate biosynthesis / ECM pathway. Genes within the Coagulation & Microcirculation 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.
rs4148496 and Long COVID / ME-CFS research
Chondroitin sulfate proteoglycans modulate extracellular matrix structure and inflammatory signaling; CHST3 variants may affect connective tissue properties and inflammatory responses in Long COVID.
This information is based on published research and does not constitute medical advice. See references below.
Parent gene: CHST3
rs4148496 is one of 1 known variant in the CHST3 gene. To understand the full biological context of this variant, explore the parent gene page.
View CHST3 gene page →Conditions studied in relation to rs4148496
Research into CHST3 variants including rs4148496 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 CHST3 and the rs4148496 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 rs4148496 variant in the CHST3 gene?
rs4148496 is a single nucleotide polymorphism (SNP) located in the CHST3 (Carbohydrate Sulfotransferase 3) gene, which is involved in chondroitin sulfate biosynthesis / ECM. CHST3 encodes chondroitin 6-O-sulfotransferase 1, which modifies chondroitin sulfate proteoglycans in the extracellular matrix.
How may the rs4148496 variant relate to Long COVID or ME/CFS?
Chondroitin sulfate proteoglycans modulate extracellular matrix structure and inflammatory signaling; CHST3 variants may affect connective tissue properties and inflammatory responses in Long COVID.
Can a consumer DNA test detect the rs4148496 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 rs4148496 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.
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References
The following publications were used in compiling the research context for CHST3 and its variants. This is not an exhaustive literature review.
- [1]PMID: 33141942
- [2]Nature Genetics
- [3]Matrix Biology