The FAM90A23 gene belongs to a group of closely related genes found in repeated parts of human DNA. This gene likely supports basic cell function as part of that larger gene family. Most variants in this gene are not tied to a clear, well recognized pattern of symptoms in everyday medical care. If the gene does not work as expected, any effects would likely depend on the exact variant and the rest of a person’s genetic background.
What is a gene?
Genes are stretches of DNA that carry instructions your cells use to make molecules or guide processes in the body. Some genes hold the code for proteins, the parts of cells that do much of the work. Others mainly regulate when certain processes happen, where they take place, and how strongly they are turned on. Together, genes affect how the body develops and works, and they can shape how you respond to food, stress, and medications. If you want to go into more detail on this topic, you can learn more in the LearnHub.
Overview
FAM90A23Gene function
What if the gene works
The FAM90A23 gene helps make a FAM90A family protein. This protein is part of normal cell activity.
Risk
What if the gene does not work
Changes in the FAM90A23 gene may reduce or alter the protein it helps make. Milder variants may have smaller effects, while more severe variants can cause a greater loss of normal cellular activity.
Treatment
What does that mean for your treatment
No treatment or drug choice guidance is currently established specifically for pathogenic variants in the FAM90A23 gene.
Gene function
What if the gene works
FAM90A23 is used by cells as part of the usual DNA to RNA to protein pathway. In everyday terms, this means it can serve as a set of instructions your cells read and use during normal cell activity. Understanding normal FAM90A23 gene function starts with this basic job in your DNA.
In normal cells, the FAM90A23 gene can be copied into RNA, a working copy of DNA instructions. This is part of how cells turn stored genetic information into everyday activity.
FAM90A23 is classified as a protein-coding gene. When it is used normally, your cells can use those instructions to make its matching protein.
What is a variant?
A genetic variant is a small change in the DNA sequence within a gene. These changes are common and help account for normal differences between people, such as appearance, metabolism, or how the body responds to environmental influences. Many variants do not have any noticeable effect and are simply part of natural genetic variation. Sometimes, however, a variant can change how a gene functions more substantially and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the FAM90A23 gene can affect function by altering the RNA message, changing amino acids in the protein, or creating an early stop signal that shortens it. Milder changes may only slightly reduce protein stability or the amount made, while more severe variants can disrupt splicing or lead to partial or near complete loss of function. This range helps explain how FAM90A23 gene variant effects can differ from one change to another at the cellular level.
How variants are linked to conditions
Current evidence does not yet show a broadly confirmed link between variants in the FAM90A23 gene and a specific health condition. As research develops, this can change, so anyone trying to understand what a FAM90A23 gene variant means should use their own test report and guidance from a doctor or genetic counselor.
A variant is not necessarily a diagnosis
Variants in genes are a usual part of human biology and are common across the general population. Most of these variants do not have a direct effect on health and instead reflect natural human diversity. For many genes, carrying a variant associated with a condition indicates a possible link rather than a definite diagnosis, especially when multiple genes and environmental factors are involved. In some cases, though, a single well-characterized variant in a specific gene is enough to confirm a diagnosis.
Are there things that can increase or change my risk?
There is not yet broadly confirmed evidence on specific factors that increase or reduce health risk related to the FAM90A23 gene. People with concerns about personal or family risk can talk with a doctor or genetic counselor about what their results may mean in the context of their own health history.
Inheritance of FAM90A23 variants
For people trying to understand how FAM90A23 gene variants are inherited, there is not yet a broadly confirmed Mendelian inheritance pattern tied to a specific FAM90A23-related condition. As research develops, this picture may become clearer. The FAM90A23 gene is located on chromosome 8, which is an autosome, so each person inherits one copy from each parent. In general, that means inheritance of this gene does not differ between sons and daughters.
What does my FAM90A23 result mean for my family?
There isn’t yet a broadly confirmed inheritance pattern tied to a specific health condition for FAM90A23, though this can change as research develops. If you have a FAM90A23 result and want to understand what it could mean for relatives, a doctor or genetic counselor can help explain it in the context of your family history and the exact finding.
Genetic information
Genetic testing
How you find out about variants
FAM90A23 genetic testing uses a blood or saliva sample to read this gene, often as part of a DNA panel or broader sequencing test, to find out about variants. The lab compares your sequence with a reference and classifies any variant based on current evidence, such as benign, uncertain, or clinically significant.
When should I consider getting a genetic test?
There is not yet a broadly established, FAM90A23-specific reason for genetic testing in routine care. Decisions about testing are usually based on your symptoms, other test results, and family history, and are best made with a doctor or genetic counselor.
A genetic result is only one part of your health story
A genetic finding can provide useful information, but how much it explains varies with the condition and the kind of variant present. How the body works over time is also shaped by many factors, including lifestyle, environment, age, and medical history. For some conditions, especially those influenced by many genes, genetic information offers context rather than certainty and is best understood alongside other parts of care. In other situations, a genetic result can give a clear answer. In areas such as medication response, genetic results may also help make sense of individual experiences.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how your body handles medicines, which helps explain why the same treatment can work differently from one person to another. Some people break down a drug more slowly or more quickly, while others may be more or less sensitive to its effects. This is common and can influence how well a medicine works or the chance of side effects.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences can shape the way a person responds to medications. It studies the links between genes and drugs to help explain why the same treatment may work differently from one person to another. For many medicines, genes can affect both how strongly a drug works and how the body processes it. This information can support more informed, individualized treatment decisions. You can explore this topic further in the LearnHub.
Drugs influenced by the FAM90A23 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in predicting how medicines will work, so general questions about side effects, treatment choices, or new symptoms are best discussed with your doctor.