rs1800255
Variant in the COL3A1 gene (Collagen Type III Alpha 1 Chain)
rs1800255 is a single nucleotide polymorphism (SNP) in the COL3A1 gene, involved in extracellular matrix / vascular integrity. 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 rs1800255 variant?
rs1800255 is a SNP (single nucleotide polymorphism) in the COL3A1 (Collagen Type III Alpha 1 Chain) gene. It belongs to the Connective Tissue category and is part of the Coagulation & Microcirculation biological cluster. COL3A1 encodes type III collagen, which is important for vascular and skin integrity.
Biological role and pathway
This variant sits within the COL3A1 gene, which is involved in the extracellular matrix / vascular integrity 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.
rs1800255 and Long COVID / ME-CFS research
Type III collagen variants are associated with connective tissue disorders like Ehlers-Danlos syndrome; connective tissue laxity may contribute to dysautonomia and POTS in Long COVID.
This information is based on published research and does not constitute medical advice. See references below.
Parent gene: COL3A1
rs1800255 is one of 1 known variant in the COL3A1 gene. To understand the full biological context of this variant, explore the parent gene page.
View COL3A1 gene page →Conditions studied in relation to rs1800255
Research into COL3A1 variants including rs1800255 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 COL3A1 and the rs1800255 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 rs1800255 variant in the COL3A1 gene?
rs1800255 is a single nucleotide polymorphism (SNP) located in the COL3A1 (Collagen Type III Alpha 1 Chain) gene, which is involved in extracellular matrix / vascular integrity. COL3A1 encodes type III collagen, which is important for vascular and skin integrity.
How may the rs1800255 variant relate to Long COVID or ME/CFS?
Type III collagen variants are associated with connective tissue disorders like Ehlers-Danlos syndrome; connective tissue laxity may contribute to dysautonomia and POTS in Long COVID.
Can a consumer DNA test detect the rs1800255 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 rs1800255 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 ReportInformational and educational only · Not a diagnostic tool · GDPR compliant
References
The following publications were used in compiling the research context for COL3A1 and its variants. This is not an exhaustive literature review.
- [1]PMID: 32966261
- [2]Nature Genetics
- [3]Matrix Biology