DYNC2H1 rs137853031: Understanding This Genetic Variant
The genetic variant rs137853031 is a specific change located within the DYNC2H1 gene. It is primarily recognized in clinical databases for its association with short-rib thoracic dysplasia, a rare skeletal condition.
What each genotype means
Typical genetic profile
This is the common, reference genotype for this position in the genome. It is not associated with the specific clinical conditions linked to the alternative allele.
This is the most common genotype observed in the general population.
Carrier status
You carry one copy of the alternative allele. Research indicates that this variant is associated with Short-rib thoracic dysplasia 3, a rare condition, and you should discuss any specific health concerns with a medical professional.
This genotype is rare in the general population.
Associated with clinical risk
You carry two copies of the alternative allele. This genotype has been identified in clinical databases as pathogenic in the context of Short-rib thoracic dysplasia 3 with or without polydactyly. Please consult with a genetic counselor or physician to understand what this means for your personal health.
This genotype is very rare in the general population.
What is rs137853031?
The identifier rs137853031 refers to a single nucleotide polymorphism (SNP) located on chromosome 11. In the context of human genetics, a SNP represents a variation at a single position in the DNA sequence. This specific variant is situated within the DYNC2H1 gene, which provides instructions for making a protein essential for the function of cilia. Cilia are microscopic, hair-like structures that extend from the surface of many cell types and play critical roles in cell signaling and movement. Because this variant involves a change in the genetic code of a gene responsible for fundamental cellular processes, it has been the subject of clinical investigation regarding how such changes might impact human development.
The Role of the DYNC2H1 Gene
The DYNC2H1 gene encodes a protein that is a key component of the cytoplasmic dynein 2 complex. This complex is the motor protein responsible for retrograde intraflagellar transport, a process that moves materials from the tip of the cilium back to the cell body. This transport mechanism is vital for the proper assembly and maintenance of cilia. When the DYNC2H1 gene is altered, the resulting protein may not function correctly, which can disrupt the signaling pathways that rely on cilia. These pathways are particularly important during embryonic development, influencing the formation of the skeleton and other organ systems. Research into this gene helps scientists understand the complex biological machinery required for normal human growth.
Clinical Associations and Evidence
In clinical genetics, rs137853031 is documented in databases like ClinVar as being associated with short-rib thoracic dysplasia 3, with or without polydactyly. This is a rare, severe, and inherited skeletal disorder characterized by a narrow chest, short ribs, and shortened limbs. The evidence for this association is derived from clinical observations where specific changes in the DYNC2H1 gene are identified in individuals presenting with these symptoms. It is important to note that this variant is categorized as pathogenic in clinical contexts, meaning it is linked to the development of the condition. Genetic associations of this nature are typically identified through clinical diagnostic testing rather than general population screening, as the condition is rare and the variant's presence is highly specific to the clinical presentation.
Understanding Your Genetic Information
Genetic information can be complex, and it is important to distinguish between common variations and those with significant clinical impact. The presence of a variant like rs137853031 does not provide a diagnosis on its own, nor does it predict health outcomes for everyone. If you have received information about this variant from a genetic test, it is essential to discuss the results with a qualified healthcare provider or a genetic counselor. They can help interpret the findings in the context of your personal and family medical history. Never use genetic data to make medical decisions or change treatments without professional guidance. Genetic testing is a tool for information, and its interpretation requires the expertise of a clinician who understands the nuances of your specific health profile.
How common is this variant?
Specific population frequency data for rs137853031 is not widely documented in general population databases, as it is a rare variant primarily identified in clinical settings.
Frequently asked questions
What is short-rib thoracic dysplasia?
Short-rib thoracic dysplasia is a rare, inherited skeletal disorder characterized by a narrow chest, short ribs, and shortened limbs. It is caused by mutations in genes involved in ciliary function, such as DYNC2H1.
Is rs137853031 common?
No, this variant is not considered a common polymorphism. It is a rare genetic change that is typically investigated in the context of specific clinical diagnoses.
Should I be worried if I have this variant?
Genetic variants are complex and their impact depends on many factors. If you have concerns about a genetic report, you should consult with a genetic counselor or your primary care physician to understand what it means for you.
Where can I find more information about DYNC2H1?
You can find authoritative information about genes and their associated conditions through resources like MedlinePlus Genetics or the NCBI Gene database. These sites provide detailed, peer-reviewed summaries for the public.
Sources & further reading
Educational information only, last refreshed 9/30/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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