COL5A2 rs1040238147: Understanding This Rare Genetic Variant
The rs1040238147 variant is a rare single nucleotide change located within the COL5A2 gene. It is currently classified as a variant of uncertain significance, and there is limited research available regarding its specific impact on human health.
What each genotype means
Typical genetic profile
This genotype represents the most common form of this genetic marker observed in general population studies. There is currently no established clinical significance or specific trait association linked to this configuration in major research databases.
This is the most frequently observed genotype across most global populations.
Variant carrier status
Carrying one copy of this variant is noted in clinical databases as a potential genetic marker, though its specific functional impact remains under investigation. Current research has not established a definitive link to any specific health trait or condition.
This genotype is observed at low frequencies in most populations, with limited data available regarding specific ancestry-based prevalence.
Variant homozygous status
This genotype represents the presence of two copies of the variant marker. While this variant is cataloged as a potential genetic marker, there is currently insufficient evidence to associate this specific genotype with any known clinical phenotype or health outcome.
This genotype is rare in the general population, with no specific frequency data recorded in major genomic databases.
What is rs1040238147?
The rs1040238147 variant is a specific change in the DNA sequence, categorized as a single nucleotide polymorphism (SNP). It is located on chromosome 2 at position 189,915,366 (GRCh38). In genetic databases, this variant is identified by its unique reference SNP ID, or rsID. This specific location places it within the COL5A2 gene, which provides instructions for making a component of type V collagen. Collagen is a protein that provides structure and strength to connective tissues throughout the body, including skin, tendons, and ligaments. Because this variant involves a single letter change in the genetic code, scientists study it to determine if it alters the function of the resulting protein or if it is a benign variation that occurs naturally in the human population.
The Role of the COL5A2 Gene
The COL5A2 gene is essential for the production of the pro-alpha2(V) chain of type V collagen. Type V collagen is a fibrillar collagen that helps regulate the assembly of other collagen types, particularly type I collagen, which is the most abundant collagen in the body. Proper collagen assembly is vital for maintaining the integrity of connective tissues. Mutations in the COL5A2 gene are known to be associated with certain connective tissue disorders, such as Ehlers-Danlos syndrome, which can cause joint hypermobility, skin hyperextensibility, and tissue fragility. However, not every variant found within a gene is harmful. Many variants are neutral and do not affect the protein's structure or function. Research into rs1040238147 aims to clarify whether this specific change has any functional consequence or if it is simply a rare, harmless variation.
Research and Evidence Strength
The current evidence regarding rs1040238147 is limited. While some databases have flagged this variant as 'probable-pathogenic' in specific contexts, there is no robust, large-scale clinical evidence linking it to a specific disease or trait. In the world of genomics, 'uncertain significance' is a common classification for rare variants that have not been extensively studied in clinical populations. Because this variant is extremely rare, researchers have not yet gathered enough data to determine if it contributes to any health conditions. It is important to distinguish between a variant being present in a database and that variant being proven to cause a medical condition. As of now, there is no established clinical consensus on the impact of this variant, and it remains a subject of ongoing genomic surveillance.
Population Frequency
The rs1040238147 variant is considered extremely rare or absent in the general population. Large-scale genomic databases, such as gnomAD, which aggregate data from hundreds of thousands of individuals, show that this variant is not found in most people. When a variant is this rare, it is difficult for scientists to perform the statistical analyses required to confirm whether it has any biological effect. Its absence in most ancestral groups suggests that it is not a common feature of the human genome. Because it is so infrequent, it is unlikely to be a major factor in common health traits, and its presence in an individual is an uncommon finding that typically does not have a clear clinical interpretation.
What You Can Do With This Information
If you have received information about this variant from a genetic test, it is important to understand that this result does not constitute a medical diagnosis. Because rs1040238147 is a variant of uncertain significance, it cannot be used to predict health outcomes or guide medical treatment. Genetic information is complex, and findings should always be interpreted by a qualified healthcare professional, such as a genetic counselor or a medical geneticist, who can place the result in the context of your personal and family health history. You should not make any changes to your health regimen or medication based on this information alone. If you have concerns about your genetic results, discuss them with your clinician, who can help you understand the limitations of current research and what, if any, follow-up is appropriate for your specific situation.
How common is this variant?
The rs1040238147 variant is extremely rare or absent across all major ancestral populations in global genomic databases.
Frequently asked questions
Is rs1040238147 a disease-causing mutation?
There is currently no established clinical evidence to classify rs1040238147 as a disease-causing mutation. It is categorized as a variant of uncertain significance, meaning researchers do not have enough data to confirm if it has any impact on health.
Should I be worried if I have this variant?
Finding a rare variant like rs1040238147 is often a neutral discovery. Because the variant is not well-understood, it is not a reliable indicator of health, and you should discuss the finding with a genetic counselor to understand its relevance to your specific health history.
Where can I find more information about this SNP?
You can look up rs1040238147 in public databases like ClinVar or the NCBI dbSNP website. These resources provide the most up-to-date scientific information regarding known associations and research status.
Does this variant affect my collagen production?
While the variant is located in the COL5A2 gene, there is no evidence that it disrupts the production or function of type V collagen. Most rare variants in genes do not have a measurable impact on the proteins they encode.
Sources & further reading
Educational information only, last refreshed 10/20/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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This variant is a rare, uncharacterized single nucleotide variation with no established clinical significance in major databases.
This variant is an uncharacterized single nucleotide variation with no established clinical significance.
This variant is an uncharacterized single nucleotide variation with no established clinical significance.
This variant is an uncharacterized single nucleotide variation with no established clinical significance.
This rsID is not currently recognized as a valid, stable SNP in major public databases like dbSNP or Ensembl.
This variant is an uncharacterized single nucleotide variation with no established clinical significance.