SLC19A1 Gene

What is the SLC19A1 gene?

SLC19A1 encodes solute carrier family 19 member 1 (reduced folate carrier), a protein involved in folate transport. It belongs to the Vitamin Metabolism category and is part of the Vitamin & Nutrient Metabolism biological cluster. SLC19A1 encodes the reduced folate carrier, the primary uptake mechanism for folate and methotrexate in most tissues.

Biological role and pathway

SLC19A1 is involved in the folate transport pathway, which plays a central role in regulating physiological processes relevant to immune defence, cellular energy, and systemic homeostasis. Genes within the Vitamin & Nutrient Metabolism 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 SLC19A1 gene have been studied in relation to vitamin metabolism and chronic illness. Each variant represents a single nucleotide position where individuals may carry different alleles.

• rs1051266— SLC19A1 variant

Conditions studied in relation to SLC19A1

Research into SLC19A1 variants has explored associations with the following conditions. These are areas of scientific investigation and do not imply that SLC19A1 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 SLC19A1 and related genes in the vitamin & nutrient metabolism 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 Vitamin & Nutrient Metabolism pathway

SLC19A1 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