LOC126862526 rs126862526: Understanding This Regulatory Variant
The variant rs126862526 is located within a functional regulatory element known as LOC126862526. This specific region is associated with Perrault syndrome 6, a rare condition characterized by sensorineural hearing loss and ovarian dysgenesis.
What each genotype means
Potential risk for Perrault syndrome
This genotype represents the homozygous state for the variant in the LOC126862526 regulatory element. Research indicates that pathogenic variants in this region are associated with Perrault syndrome 6, a condition involving ovarian dysgenesis and sensorineural hearing loss. Because this is a rare regulatory variant, its clinical impact depends on specific functional disruption; please consult with a genetic counselor or medical professional to discuss these findings in the context of your personal and family health history.
This specific genotype is extremely rare across all global populations.
Carrier of regulatory variant
This genotype indicates you carry one copy of the variant in the LOC126862526 regulatory element. As Perrault syndrome is typically an autosomal recessive condition, carrying a single copy is generally not expected to cause the clinical features of the syndrome. You may wish to discuss carrier status and reproductive health implications with a qualified healthcare provider.
This heterozygous genotype is very rare in the general population.
Typical regulatory sequence
This genotype represents the common, non-variant sequence at this location in the LOC126862526 regulatory element. There is no evidence to suggest this genotype is associated with the development of Perrault syndrome 6. This result is consistent with the typical genetic profile for this region.
This is the most common genotype observed across all human populations.
What is the rs126862526 Variant?
The variant rs126862526 is a specific genetic change located within the genomic region identified as LOC126862526. Unlike protein-coding genes that provide instructions for building proteins, this region functions as a regulatory element. Specifically, it has been characterized as a BRD4-independent group 4 enhancer. Enhancers are segments of DNA that act as control switches, increasing the likelihood that a particular gene will be transcribed into messenger RNA. By binding to specific proteins like BRD2, P300/CBP, MED14, and CDK7, this element helps fine-tune gene expression within certain cell types, such as HCT116 colorectal carcinoma cells. Because it is a regulatory sequence, variations here do not change a protein's structure directly but may alter the timing, location, or amount of gene expression, which can have downstream effects on cellular function.
The Role of LOC126862526
LOC126862526 is classified as a functional enhancer element. Its primary role is to facilitate transcriptional regulation, which is the process by which a cell reads the information in its DNA to create functional products. Research using techniques like the STARR-seq massively parallel reporter assay has validated its activity as an enhancer. The element is notable for its independence from BRD4, a protein often involved in super-enhancer activity, suggesting it operates through a distinct regulatory pathway involving other cofactors. While its exact target genes in a physiological context are still being mapped, its classification as a regulatory element highlights the importance of non-coding DNA in human health. Disruptions in such control switches can lead to significant biological consequences if the genes they regulate are critical for development or maintenance of specific tissues.
Research and Clinical Associations
The variant rs126862526 is linked to Perrault syndrome 6, a rare, genetically heterogeneous, and autosomal recessive disorder. Perrault syndrome is clinically defined by the presence of bilateral sensorineural hearing loss in both males and females, alongside primary ovarian insufficiency or dysgenesis in females. The evidence connecting this specific regulatory element to the syndrome is considered moderate, as it represents a complex interaction between non-coding variation and clinical phenotype. Because Perrault syndrome is rare—with fewer than 100 cases described in medical literature—understanding the specific contribution of regulatory variants like rs126862526 requires ongoing study. Researchers continue to investigate how these regulatory changes disrupt the delicate balance of gene expression required for normal auditory and reproductive development, as the underlying mechanisms are often distinct from the more commonly studied protein-coding mutations.
What You Can and Cannot Do With This Information
Information regarding genetic variants like rs126862526 is intended for educational purposes and to provide insight into the genetic architecture of rare conditions. It is important to understand that identifying a variant in a regulatory element does not constitute a medical diagnosis. If you or a family member have concerns about symptoms such as hearing loss or reproductive health, you should consult with a qualified healthcare professional or a genetic counselor. They can provide appropriate clinical evaluations, diagnostic testing, and personalized guidance. You cannot use this information to predict health outcomes or make decisions about medical treatment on your own. Genetic data is complex, and clinical interpretation requires integrating family history, physical examinations, and specialized laboratory testing that goes far beyond the presence of a single variant.
How common is this variant?
The variant rs126862526 is considered very rare in the general population. Specific frequency data across diverse ancestral groups remains limited due to the rarity of the associated clinical conditions.
Frequently asked questions
What is Perrault syndrome?
Perrault syndrome is a rare, inherited disorder characterized by sensorineural hearing loss in both males and females, and ovarian dysfunction in females. It is genetically heterogeneous, meaning it can be caused by mutations in several different genes.
Is rs126862526 a gene?
No, rs126862526 is a specific genetic variant located within a regulatory element called LOC126862526. This element acts as an enhancer, which helps control the expression of other genes.
Can I be tested for this variant?
Genetic testing for specific variants is typically performed in a clinical setting, often as part of a broader panel for hearing loss or reproductive health. You should discuss the necessity and implications of such testing with a medical geneticist or your primary care physician.
What does 'regulatory element' mean?
A regulatory element is a segment of DNA that does not code for a protein but instead acts as a switch to turn genes on or off. These elements are crucial for ensuring that genes are expressed at the right time and in the right amount.
Sources & further reading
Educational information only, last refreshed 9/15/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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