NLRP7 rs104895503: What Your Genotype Means
The rs104895503 variant is a specific genetic change located within the NLRP7 gene. It has been identified in clinical research as a likely pathogenic variant associated with an increased risk of recurrent hydatidiform moles and other forms of reproductive wastage.
What each genotype means
Typical NLRP7 genotype
This is the most common genotype for this position in the NLRP7 gene. It is not associated with the increased risk of recurrent hydatidiform moles or reproductive wastage linked to pathogenic variants in this gene.
This is the predominant genotype found in the vast majority of the global population.
Carrier of variant allele
You carry one copy of the C allele at this position. Research indicates that pathogenic variants in NLRP7 typically follow a recessive inheritance pattern, meaning that carrying a single copy is generally not sufficient to cause the associated reproductive conditions on its own. You should consult with a genetic counselor or reproductive specialist if you have concerns regarding reproductive history.
This genotype is rare, occurring in approximately 1 in 270 individuals based on a global minor allele frequency of roughly 0.0018.
Potential increased reproductive risk
This genotype represents the homozygous state for the C allele. While this variant is cataloged in relation to recurrent hydatidiform moles, clinical significance can be complex and may depend on other genetic or environmental factors. Please discuss these results with a medical professional or genetic counselor to understand the implications for your reproductive health.
This genotype is extremely rare in the general population.
Understanding the rs104895503 Variant
The rs104895503 variant is a single nucleotide polymorphism (SNP) located within the NLRP7 gene, which is situated on chromosome 19. In genetics, a SNP represents a variation at a single position in the DNA sequence. This specific variant is classified as a missense mutation, meaning the change in the DNA sequence results in a different amino acid being incorporated into the protein produced by the gene. Because the NLRP7 gene is critical for early embryonic development, changes in its sequence can have significant biological consequences. Researchers track this variant to better understand how specific genetic alterations contribute to complex reproductive conditions. It is important to note that the presence of a variant does not automatically guarantee a specific health outcome, as many factors, including the inheritance pattern and the presence of other genetic modifiers, play a role in how these variants manifest in an individual.
The Role of the NLRP7 Gene
The NLRP7 gene provides instructions for making a protein that is essential for normal human reproduction. Specifically, it acts as a maternal-effect gene, meaning it is expressed in the mother's oocytes (egg cells) and is necessary for the proper development of the embryo during the very early stages of pregnancy. The protein produced by NLRP7 is thought to be involved in regulating the imprinting of genes, a process that determines which copies of certain genes are active in the developing embryo. When the NLRP7 protein is not functioning correctly due to genetic mutations, the oocyte may fail to develop normally. This can lead to the formation of a hydatidiform mole, an abnormal pregnancy characterized by the growth of placental tissue without a viable fetus. Because this gene is vital for early development, its proper function is a cornerstone of successful human reproduction.
Research and Clinical Associations
Scientific literature has established a strong link between biallelic mutations in the NLRP7 gene and the condition known as recurrent hydatidiform mole. A hydatidiform mole is an aberrant pregnancy where the embryo does not develop properly, often resulting in miscarriage or the need for medical intervention. Research indicates that individuals who carry pathogenic variants in both copies of their NLRP7 gene (biallelic inheritance) are at a significantly higher risk for these reproductive losses. The evidence for rs104895503 specifically is categorized as likely pathogenic in clinical databases. While the association with reproductive wastage is well-documented in clinical cohorts, the severity and specific presentation can vary between individuals. It is essential to understand that this research is based on clinical observations of patients experiencing recurrent pregnancy loss, and the variant is not considered a universal marker for all reproductive difficulties.
Population Frequency and Interpretation
The rs104895503 variant is considered rare in the general population, with a Global Minor Allele Frequency (GMAF) reported at approximately 0.001837. Because the variant is rare, it is not commonly encountered in the general public. In the context of reproductive genetics, the rarity of the variant aligns with the relatively low incidence of recurrent hydatidiform moles in the broader population. When interpreting genetic data, it is important to recognize that frequency data is derived from large-scale genomic databases, which may have varying levels of representation across different ancestral groups. The presence of this variant in a person's genetic profile should be interpreted within the context of their personal and family medical history. Because this information relates to complex reproductive health, it is best discussed with a qualified genetic counselor or a reproductive specialist who can provide context based on clinical findings.
Navigating Genetic Information
Genetic information regarding variants like rs104895503 is intended for educational purposes and should not be used for self-diagnosis or to make medical decisions. If you have concerns about your reproductive health or a history of pregnancy loss, the most appropriate step is to consult with a healthcare provider, such as a reproductive endocrinologist or a clinical geneticist. These professionals can offer diagnostic testing, interpret results in the context of your specific health history, and discuss potential management options. It is important to avoid making assumptions based on raw genetic data, as clinical diagnosis requires a comprehensive evaluation that includes physical exams, family history, and validated laboratory testing. Genetic science is rapidly evolving, and professional guidance ensures that you receive accurate, personalized information that is relevant to your specific clinical situation.
How common is this variant?
The rs104895503 variant is rare, with a reported Global Minor Allele Frequency of 0.001837.
Frequently asked questions
What is a hydatidiform mole?
A hydatidiform mole is an abnormal pregnancy where the placenta develops into a mass of cysts rather than a healthy fetus. It is a rare condition that requires medical monitoring and care.
Does having this variant mean I cannot have children?
Not necessarily. While certain NLRP7 variants are associated with reproductive challenges, genetic testing results should be discussed with a fertility specialist to understand your specific reproductive health context.
Should I get tested for the NLRP7 gene?
Genetic testing for NLRP7 is typically recommended by clinicians for individuals or couples who have experienced recurrent hydatidiform moles. You should discuss the necessity of this test with your doctor.
Is this variant related to other health conditions?
Current research primarily associates NLRP7 variants with reproductive phenotypes like hydatidiform moles and oocyte maturation arrest. It is not typically linked to general health conditions outside of reproductive development.
Sources & further reading
Educational information only, last refreshed 9/18/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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