NOD2 Gene

What is the NOD2 gene?

NOD2 encodes nucleotide binding oligomerization domain containing 2, a protein involved in intracellular bacterial sensing / autophagy. It belongs to the Immune Signaling category and is part of the Viral Defense & Interferon Response biological cluster. NOD2 encodes an intracellular sensor for bacterial muramyl dipeptide that activates NF-kB and autophagy; mutations cause Crohn's disease.

Biological role and pathway

NOD2 is involved in the intracellular bacterial sensing / autophagy pathway, which plays a central role in regulating physiological processes relevant to immune defence, cellular energy, and systemic homeostasis. Genes within the Viral Defense & Interferon Response 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 in these systems — particularly under conditions of physiological stress such as viral infection or prolonged illness.

Known genetic variants

The following variants (SNPs) in the NOD2 gene have been studied in relation to immune signaling and chronic illness. Each variant represents a single nucleotide position where individuals may carry different alleles.

• rs2066844— NOD2 variant
• rs2066845— NOD2 variant
• rs2066847— NOD2 variant

Conditions studied in relation to NOD2

Research into NOD2 variants has explored associations with the following conditions. These are areas of scientific investigation and do not imply that NOD2 causes or treats any condition.

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 NOD2 and related genes in the viral defense & interferon response pathway.

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.

Related genes in the Viral Defense & Interferon Response pathway

NOD2 does not act in isolation. The following genes are functionally related and may be analysed together for a more complete picture of your genetic predispositions.

Frequently asked questions