NIPBL rs398124467: What Your Genotype Means
The rs398124467 variant is a rare genetic change located within the NIPBL gene. It has been identified in clinical research as a potential factor associated with Cornelia de Lange syndrome.
What each genotype means
Heterozygous carrier status
You carry one copy of the G allele at this position. This variant is documented in clinical databases, but its specific functional impact on NIPBL gene activity remains a subject of ongoing research.
This genotype is rare and found at a very low frequency in the general population.
Homozygous variant status
You carry two copies of the G allele at this position. While this variant is tracked in clinical archives like ClinVar, there is currently limited evidence to define a specific clinical phenotype associated with this homozygous state.
This genotype is extremely rare in the general population.
Understanding the Variant and Its Location
The variant rs398124467 is a specific genetic alteration situated on chromosome 5. In the context of human genomics, a single nucleotide polymorphism (SNP) or small insertion/deletion represents a variation at a single position in the DNA sequence. This particular variant is cataloged in databases like dbSNP and ClinVar, which serve as repositories for human genetic variation. Because it is located within the NIPBL gene, researchers monitor it closely to understand how changes in this region might influence biological processes. Geneticists use these databases to track where variants sit relative to known functional elements of the genome, helping to distinguish between common, benign variations and those that may have clinical significance.
The Role of the NIPBL Gene
The NIPBL gene provides instructions for making a protein known as the NIPBL cohesin loading factor. This protein plays a critical role in the cohesin complex, which is essential for the structural organization of chromosomes and the regulation of gene expression during development. By helping to load cohesin onto DNA, the NIPBL protein ensures that cells can properly manage their genetic material during division and development. When the function of this gene is disrupted, it can lead to significant developmental challenges. Research has established that mutations in NIPBL are the primary cause of Cornelia de Lange syndrome, a condition characterized by distinct facial features, growth delays, and other developmental differences.
Research Associations and Evidence Strength
The association between rs398124467 and clinical findings is documented in public archives like ClinVar. In these records, the variant has been classified as pathogenic in the context of Cornelia de Lange syndrome. It is important to note that clinical databases aggregate reports from various laboratories and clinicians, and the strength of evidence can vary based on the specific case studies provided. While the link to this syndrome is recognized in the literature, the presence of a variant does not automatically imply a specific health outcome for every individual. Genetic research is an evolving field, and interpretations of pathogenicity are subject to updates as more data becomes available through large-scale genomic studies and clinical observations.
Population Frequency and Distribution
The rs398124467 variant is classified as rare across human populations. In genomics, rarity is a key indicator that a variant is not a common feature of the human genome and may be subject to stronger selective pressures. Because it is rare, it is not typically found in the general population at high frequencies. Large-scale databases like gnomAD are used by scientists to determine the frequency of such variants across different ancestral groups. Understanding the frequency of a variant helps researchers assess its potential impact; variants that are extremely rare are often investigated more closely for their role in rare, single-gene disorders rather than common, complex traits.
Navigating Genetic Information
Information regarding genetic variants like rs398124467 is intended for educational purposes and should not be used for self-diagnosis. If you have received a report mentioning this variant, it is essential to consult with a qualified healthcare professional, such as a genetic counselor or a medical geneticist. These experts can provide context based on your personal and family medical history, which is necessary to interpret the significance of any genetic finding. Genetic testing results are complex, and a clinician can help you understand what the information means for your health and whether any follow-up steps are appropriate. Never make medical decisions based solely on raw genetic data without professional guidance.
How common is this variant?
The rs398124467 variant is considered rare in the general population, meaning it is not commonly observed in large-scale genomic databases.
Frequently asked questions
What is the NIPBL gene?
The NIPBL gene provides instructions for making a protein that helps regulate chromosome structure and gene expression. It is well-known for its role in developmental processes.
Is rs398124467 associated with a disease?
Yes, this variant has been associated with Cornelia de Lange syndrome in clinical databases. It is classified as a pathogenic variant in those specific contexts.
Should I be worried if I have this variant?
Genetic findings should always be discussed with a healthcare provider or genetic counselor. They can interpret the result in the context of your overall health and family history.
Where can I find more information about this SNP?
You can search for the rsID on public databases like ClinVar, dbSNP, or the gnomAD browser. These sites provide technical details and clinical interpretations.
Sources & further reading
Educational information only, last refreshed 10/9/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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