SLC22A4 rs17370812: What Your Genotype Means
The rs17370812 variant is a genetic change located within the SLC22A4 gene. It has been studied for its potential statistical association with susceptibility to inflammatory bowel disease, particularly Crohn's disease.
What each genotype means
Baseline risk profile
This genotype represents the most common form of this variant in many populations. Research indicates that individuals with this genotype do not carry the specific allele associated with increased susceptibility to inflammatory bowel disease in this genetic region. This result should not be interpreted as a medical diagnosis or a guarantee of health.
This is the most frequent genotype in most global populations, particularly among those of European ancestry.
Potential susceptibility association
This genotype includes one copy of the variant allele that has been associated with an increased risk of inflammatory bowel disease, specifically Crohn's disease, in various genome-wide association studies. Because this association is based on statistical trends across large populations, it does not predict individual health outcomes. Please consult with a healthcare provider if you have concerns about digestive health or family history.
Carried by a significant portion of the population, with a minor allele frequency typically ranging between 0.10 and 0.20 in European ancestry groups.
Increased susceptibility association
This genotype contains two copies of the variant allele associated with a higher statistical risk for inflammatory bowel disease, including Crohn's disease, in published research. While this variant is a known genetic marker for susceptibility, it is only one of many factors that influence disease development. This information is for educational purposes and should not be used to diagnose or manage medical conditions.
This genotype is less common than the heterozygous form, occurring in a smaller percentage of individuals of European ancestry.
Understanding the rs17370812 Variant
The rs17370812 variant is a single nucleotide polymorphism (SNP) located within the SLC22A4 gene. In genetics, a SNP represents a variation at a single position in the DNA sequence among individuals. This specific variant is situated in a region of the genome that has been the subject of investigation in various genome-wide association studies (GWAS). These studies aim to identify statistical links between specific genetic markers and complex health traits. Because rs17370812 is located in a gene involved in transport processes, researchers have sought to understand if this variation influences how the body manages certain substances, which in turn might relate to inflammatory processes in the gastrointestinal tract.
The Role of the SLC22A4 Gene
The SLC22A4 gene encodes a protein known as the organic cation transporter novel type 1 (OCTN1). This protein is primarily responsible for the transport of L-carnitine and ergothioneine across cell membranes. These substances are essential for cellular metabolism and the regulation of oxidative stress. The SLC22A4 protein is expressed in various tissues, including the kidneys and cells of the hematopoietic lineage, which are involved in immune system function. By facilitating the movement of these molecules, the SLC22A4 gene plays a role in maintaining cellular health and controlling inflammation. Disruptions or variations in this gene may theoretically alter these transport functions, potentially impacting how the body responds to environmental or internal stressors.
Research and Evidence Strength
The association between rs17370812 and inflammatory bowel disease (IBD), specifically Crohn's disease, is categorized as having limited evidence. While multiple genome-wide association studies have identified this locus as a potential susceptibility factor, the biological mechanisms linking this specific SNP to disease development remain complex and are not fully understood. It is important to note that IBD is a multifactorial condition influenced by a combination of genetic, environmental, and immunological factors. A statistical association in a GWAS does not imply a direct cause-and-effect relationship. Furthermore, the strength of these associations can vary significantly between different ethnic and ancestral populations, meaning that findings in one group may not necessarily be replicated in another.
Interpreting Your Genetic Information
If you have information about your genotype for rs17370812, it is essential to view it within the context of current scientific understanding. This variant is one of many genetic markers studied in relation to IBD, and possessing a specific genotype does not mean an individual will develop a disease. Genetic testing for such variants is not a diagnostic tool for IBD. If you have concerns about your digestive health or family history, the most appropriate step is to consult with a healthcare professional or a gastroenterologist. They can provide personalized medical advice based on your clinical symptoms, medical history, and appropriate diagnostic testing, rather than relying on individual genetic markers.
How common is this variant?
The minor allele frequency for rs17370812 is approximately 0.10 to 0.20 in European ancestry groups. Frequencies can vary significantly across different global populations.
Frequently asked questions
Does having the rs17370812 variant mean I will get Crohn's disease?
No. Having a specific genotype for this variant does not mean you will develop Crohn's disease. IBD is a complex condition influenced by many genetic and environmental factors, and this variant is only one of many markers studied.
Is there a test to diagnose IBD using this SNP?
No. There is no clinical genetic test for this SNP that can diagnose inflammatory bowel disease. Diagnosis is based on clinical evaluation, imaging, and endoscopic procedures performed by a doctor.
What should I do if I am worried about my IBD risk?
If you have concerns about your risk for IBD, you should speak with a healthcare provider. They can evaluate your symptoms and family history to determine if further medical screening is necessary.
Why is the evidence for this variant considered limited?
Evidence is considered limited because while statistical associations have been found in research studies, the biological impact of this specific variant is not fully established. Additionally, results can be inconsistent across different populations.
Sources & further reading
Educational information only, last refreshed 9/18/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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