rs2290707 and LOC130000897: What Your Genotype Means
The genetic variant rs2290707 is a single nucleotide polymorphism located within the LOC130000897 region. Research has identified statistical associations between this variant and variations in erythrocyte volume and mean corpuscular hemoglobin levels.
What each genotype means
Typical erythrocyte profile
This genotype is considered the reference or common form of this variant. Research indicates this variant is associated with variations in erythrocyte volume and mean corpuscular hemoglobin levels, though the clinical significance of this specific genotype is generally classified as benign.
This is the most common genotype observed in general population databases.
Intermediate erythrocyte profile
Carrying one copy of the T allele may be associated with slight differences in erythrocyte volume and mean corpuscular hemoglobin levels compared to the common G/G genotype. These associations are based on large-scale genome-wide studies, and the clinical impact of this specific genotype remains limited and generally considered benign.
This heterozygous genotype is found at varying frequencies across global populations.
Variant erythrocyte profile
Carrying two copies of the T allele is associated with measurable differences in erythrocyte volume and mean corpuscular hemoglobin levels in population-based studies. While this variant has been investigated in the context of certain mitochondrial conditions, it is currently classified as non-pathogenic in clinical databases.
This genotype is less common than the G/G or G/T genotypes in most studied populations.
Understanding rs2290707
A single nucleotide polymorphism, or SNP, is a variation at a single position in a DNA sequence among individuals. The variant rs2290707 is located in a region identified as LOC130000897. In genomics, LOC identifiers are often assigned to regions that are not yet fully characterized as protein-coding genes but show functional activity. According to genomic databases, this specific site is recognized as a non-genic functional element. It is situated within chromatin-accessible regions, which are areas of the genome where DNA is less tightly packed, often allowing for the binding of regulatory proteins. Because this variant sits in a regulatory-like region, researchers study it to see if it influences how nearby genes are expressed, rather than directly coding for a protein itself. It is important to note that being located in a functional region does not automatically mean the variant causes a specific health outcome; rather, it serves as a marker that researchers use to investigate biological processes.
The Role of LOC130000897
The LOC130000897 region is categorized as a RefSeq non-genic functional element. While it does not produce a protein, it is associated with regulatory activity in the human genome. Scientific studies, including those using techniques like ATAC-STARR-seq, have identified this region as being bound by transcription factors, which are proteins that help turn genes on or off. Because of its location, it is hypothesized to act as an enhancer or silencer for neighboring genes. Some of the genes potentially targeted by this regulatory element include KLF10, NCALD, and UBR5. These genes are involved in various cellular processes, including signal transduction and protein degradation. By influencing the activity of these neighbors, the regulatory element at the LOC130000897 site may indirectly affect cellular functions. Research into these non-coding regions is a growing field, as scientists work to map the 'dark matter' of the genome to understand how regulatory switches contribute to human traits.
Research Associations and Evidence
The evidence linking rs2290707 to specific traits comes primarily from Genome-Wide Association Studies (GWAS). The GWAS Catalog, a curated resource of published genetic studies, lists rs2290707 as having associations with erythrocyte volume and mean corpuscular hemoglobin. Erythrocyte volume refers to the size of red blood cells, while mean corpuscular hemoglobin measures the average amount of hemoglobin in a single red blood cell. These are standard metrics used in complete blood count tests. The evidence strength for these associations is currently considered moderate. It is crucial to understand that GWAS findings represent statistical correlations observed across large populations, not direct cause-and-effect relationships. These studies identify regions of the genome that appear more frequently in individuals with certain trait values. Because these associations are based on statistical models, they do not account for all the environmental, dietary, or other genetic factors that also influence blood cell characteristics.
Population Frequency and Interpretation
Currently, there is no widely recorded population frequency data for the specific alleles of rs2290707 in major public databases. Genetic variants can vary significantly in frequency across different ancestral groups, and without comprehensive data, it is difficult to determine how common this variant is globally. When interpreting information about genetic variants, it is important to remember that a statistical association is not a medical diagnosis. The traits mentioned—erythrocyte volume and hemoglobin levels—are complex and influenced by a wide array of factors, including iron status, nutrition, and underlying health conditions. If you have concerns about your blood test results or health, this genetic information should not be used to make medical decisions. Always consult with a qualified healthcare provider or a clinical geneticist who can interpret your results in the context of your personal medical history and clinical laboratory findings.
How common is this variant?
There is currently no recorded population frequency data available for the specific alleles of rs2290707 in major public genomic databases.
Frequently asked questions
What does it mean if a variant is associated with erythrocyte volume?
An association with erythrocyte volume means that, in large statistical studies, individuals with a specific genotype were found to have slightly different average red blood cell sizes compared to those without it. This is a population-level observation and does not necessarily indicate an abnormal or unhealthy blood cell size for an individual.
Can I use this information to diagnose a blood disorder?
No. Genetic variants identified in GWAS are statistical markers and are not diagnostic tools. Blood disorders are diagnosed by clinicians using clinical blood tests, physical exams, and medical history, not by looking at a single SNP.
Is rs2290707 a gene?
No, rs2290707 is a single nucleotide polymorphism (SNP), which is a specific location in the DNA. It is located within the LOC130000897 region, which is a non-genic functional element rather than a protein-coding gene.
Where can I find more information about my own genetic data?
If you have received genetic testing results, you should discuss them with a genetic counselor or your primary care physician. They can help you understand the clinical relevance of your specific results in the context of your overall health.
Sources & further reading
Educational information only, last refreshed 9/14/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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