rs1205

What is the rs1205 variant?

rs1205 is a SNP (single nucleotide polymorphism) in the CRP (C-Reactive Protein) gene. It belongs to the Acute Phase category and is part of the Immune System & Inflammation biological cluster. CRP encodes C-reactive protein, a sensitive biomarker of systemic inflammation produced primarily by the liver in response to IL6.

Biological role and pathway

This variant sits within the CRP gene, which is involved in the acute phase response pathway. Genes within the Immune System & Inflammation 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.

Parent gene: CRP

rs1205 is one of 1 known variant in the CRP gene. To understand the full biological context of this variant, explore the parent gene page.

Conditions studied in relation to rs1205

Research into CRP variants including rs1205 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 CRP and the rs1205 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