GNRHR rs104894341: What Your Genotype Means
The rs104894341 variant is a rare genetic change located in the GNRHR gene, which provides instructions for making the gonadotropin-releasing hormone receptor. This variant is associated with autosomal recessive hypogonadotropic hypogonadism, a condition characterized by delayed or absent puberty and infertility.
What each genotype means
Typical GNRHR function
This genotype represents the most common, expected sequence for this location in the GNRHR gene. It is associated with normal receptor function in the pituitary gland, which is necessary for the standard regulation of reproductive hormones.
This is the most common genotype found in the general population across all ancestries.
Carrier of rare variant
You carry one copy of the variant associated with GNRHR-related hypogonadotropic hypogonadism. Because this condition is inherited in an autosomal recessive manner, carriers typically do not exhibit symptoms, though you should discuss your family history with a genetic counselor.
This genotype is very rare and is typically identified only in specific clinical contexts or research studies.
Potential GNRHR dysfunction
This genotype indicates the presence of two copies of the variant, which may disrupt the binding of GnRH in the pituitary gonadotropes. This is associated with a risk for severe hypogonadotropic hypogonadism, and you should consult with an endocrinologist or clinical geneticist to discuss your health status.
This genotype is extremely rare in the general population.
Understanding the GNRHR Gene
The GNRHR gene is located on chromosome 4 and encodes the gonadotropin-releasing hormone receptor, a protein found primarily in the anterior pituitary gland. This receptor plays a critical role in the endocrine system by responding to gonadotropin-releasing hormone (GnRH) signals from the hypothalamus. When GnRH binds to this receptor, it triggers the release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). These hormones are essential for the proper function of the reproductive system, including the development of secondary sexual characteristics and the production of sex steroids in both males and females. Because this signaling pathway is fundamental to human reproduction, disruptions in the GNRHR gene can have significant impacts on pubertal development and fertility.
What is the rs104894341 Variant?
The rs104894341 variant is a specific change in the DNA sequence of the GNRHR gene. In the context of genetic research, it is classified as a missense variant, meaning the change in the DNA code results in a different amino acid being incorporated into the receptor protein. This alteration can disrupt the normal structure or function of the receptor, potentially impairing its ability to bind to GnRH or transmit signals effectively within the pituitary cells. Because the receptor's function is compromised, the downstream production of LH and FSH may be reduced. This mechanism is a known cause of normosmic congenital hypogonadotropic hypogonadism (nCHH), a condition where individuals fail to undergo normal puberty due to a deficiency in these specific reproductive hormones.
Research and Clinical Evidence
Scientific literature identifies GNRHR variants as a notable cause of isolated gonadotropin-releasing hormone deficiency. Research indicates that this condition is typically inherited in an autosomal recessive pattern, meaning an individual must inherit two copies of a pathogenic variant—one from each parent—to exhibit the clinical phenotype. While some individuals may carry a single copy of the variant without showing symptoms, those with biallelic mutations (two copies) often experience delayed or absent puberty and infertility. Clinical studies have observed that the severity of the phenotype can vary, and in some cases, individuals may have compound heterozygous mutations, where they carry two different pathogenic variants in the same gene. The evidence linking GNRHR dysfunction to hypogonadotropic hypogonadism is well-established in clinical genetics, though the specific impact of any single variant should always be evaluated by a medical professional.
Managing Genetic Information
If you have received information regarding the rs104894341 variant, it is important to understand that this is a rare finding. Genetic testing results should never be used to self-diagnose or make medical decisions without the guidance of a qualified healthcare provider, such as a genetic counselor or an endocrinologist. These professionals can help interpret the clinical significance of your results in the context of your personal and family health history. Because this variant is associated with reproductive health, a clinician can provide appropriate context regarding fertility and pubertal development. If you are concerned about your reproductive health or the potential for passing this variant to future children, consult with a medical geneticist who can offer personalized guidance and discuss the implications of your specific genetic profile.
How common is this variant?
The rs104894341 variant is considered a rare autosomal recessive variant, meaning it is found at a very low frequency in the general population across most ancestries.
Frequently asked questions
What is hypogonadotropic hypogonadism?
Hypogonadotropic hypogonadism is a condition where the body does not produce enough sex hormones due to a problem in the pituitary gland or hypothalamus. This often leads to delayed or absent puberty and can cause infertility.
Is rs104894341 a common genetic variant?
No, rs104894341 is a rare variant. It is not commonly found in the general population, which is typical for variants associated with rare, recessive genetic disorders.
Can I be a carrier of this variant?
Yes, it is possible to be a carrier if you have one copy of the variant. Carriers typically do not show symptoms of the condition because they have one functional copy of the gene.
What should I do if I have this variant?
If you have concerns about your genetic results, you should discuss them with a healthcare provider or a genetic counselor. They can provide context based on your personal health history and explain what the findings mean for you.
Sources & further reading
Educational information only, last refreshed 9/23/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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This synonymous variant in the gonadotropin-releasing hormone receptor gene is studied for its potential role in modulating reproductive hormone responsiveness.
Pathogenic missense substitution (p.Arg262Gln) in GNRHR linked to autosomal recessive normosmic congenital hypogonadotropic hypogonadism.
Gonadotropin-releasing hormone receptor variant associated with altered gonadotropin pulsatility and susceptibility to delayed puberty.
Recessive pathogenic missense variant in gonadotropin-releasing hormone receptor causing normosmic idiopathic hypogonadotropic hypogonadism and delayed puberty.
A missense variant (p.Gln106Arg) in the gonadotropin-releasing hormone receptor associated with normosmic congenital hypogonadotropic hypogonadism.
Common missense variant (p.Gln106Arg) in the gonadotropin-releasing hormone receptor associated with hypogonadotropic hypogonadism and delayed puberty when compound heterozygous.