The FBXO28 gene helps cells control important proteins so growth and brain development stay on track. The protein made by this gene helps your cells mark certain proteins for removal when they are no longer needed. When this gene is not working properly, brain development and cell signaling can be affected. People with a harmful variant may have developmental delay, learning difficulties, and sometimes seizures.
What is a gene?
Genes are stretches of DNA that give your cells instructions for making molecules or regulating processes in the body. Some genes hold the information needed to produce proteins, the functional parts of cells. Other genes mainly direct when certain processes happen, where they occur, and how strongly they operate. Taken together, genes affect how the body develops and works, and they can influence how you respond to food, stress, and medications. For a closer look at this topic, you can read more in the LearnHub.
Overview
FBXO28Gene function
What if the gene works
The FBXO28 gene helps cells control how long certain proteins stay active. This supports normal gene activity, cell growth, and cell division.
Risk
What if the gene does not work
Pathogenic variants in the FBXO28 gene are linked to a neurodevelopmental condition that often includes developmental delay or intellectual disability and seizures. Effects can range from milder learning difficulties to forms with early seizures and broader developmental impact.
Treatment
What does that mean for your treatment
No treatment plan is currently tailored specifically to pathogenic variants in the FBXO28 gene. Care is usually based on a person’s symptoms rather than on the FBXO28 result itself. In research, the FBXO28 gene is being studied as a possible cancer biomarker and drug target, especially in breast cancer.
Conditions associated with FBXO28
Gene function
What if the gene works
Inside your cells, the FBXO28 gene helps manage when certain proteins are adjusted or cleared away. This supports steady cell activity, especially during growth and division. It also helps explain how the FBXO28 gene helps control protein breakdown and timing in everyday cell function.
The protein from the FBXO28 gene helps choose certain proteins for a small cellular tag that can change their activity or send them for recycling. This keeps protein levels balanced and routine cell work organized.
FBXO28 helps coordinate protein changes during the cell cycle, the step by step process cells use to divide. By adjusting key proteins at the right moment, it supports orderly growth and division.
In the cell nucleus, FBXO28 can help tune how strongly some growth related genes are switched on. This gives cells a controlled way to support normal growth programs.
What is a variant?
A genetic variant is a minor change in the DNA sequence of a gene. These changes are common and are part of normal human diversity, including differences in appearance, metabolism, and how the body responds to environmental influences. Many variants do not have any noticeable effect and simply represent natural genetic variation. Sometimes, however, a variant changes how a gene functions more substantially and can contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
FBXO28 gene variants can change how the protein folds, how stable it is, or how well it joins the cell machinery that labels other proteins for removal. In practical terms, how FBXO28 gene variants affect protein control in brain cells depends on the specific DNA change. Some variants only partly reduce activity, while more disruptive variants can leave very little working protein. This difference may influence whether seizures and developmental differences start earlier or are more pronounced.
How variants are linked to conditions
Pathogenic variants in the FBXO28 gene can cause a neurodevelopmental condition often called FBXO28-related developmental and epileptic encephalopathy. Reported features include seizures, developmental delay or intellectual disability, and sometimes movement problems or autism features. Some people have developmental delay without seizures, so the way FBXO28 gene variants are linked to conditions can vary from one person to another.
A variant is not necessarily a diagnosis
Genetic variants are a usual part of human biology and are widespread in the general population. Most 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 several genes and environmental factors are involved. In some situations, though, a single well-characterized variant in a particular gene is enough to confirm a diagnosis.
Are there things that can increase or change my risk?
For FBXO28, risk is mainly driven by the gene change itself, often arising newly in the child rather than being caused by lifestyle or environmental factors. There is not enough evidence to say that diet, exercise, or other day-to-day changes lower the chance of developing the condition. For many living with FBXO28-related epilepsy, avoiding known seizure triggers and getting regular follow-up can still help reduce complications.
Inheritance of FBXO28 variants
FBXO28-related conditions are usually inherited in an autosomal dominant pattern, which means one altered copy of the FBXO28 gene can be enough to cause the condition. If a parent carries a disease-causing variant, each child has a 50% chance of inheriting it. In many reported families, the FBXO28 inheritance pattern involves a new (de novo) variant, meaning the change happened for the first time in the child and was not inherited from either parent.
What does my FBXO28 result mean for my family?
A harmful change in the FBXO28 gene is linked to a condition that usually follows a dominant inheritance pattern, so close relatives such as parents, brothers, sisters, and children may also carry the same change. In many families, the change is new in the affected child and is not found in either parent. If the change is present in a parent, other family members may also want to learn whether they carry it.
Genetic information
Genetic testing
How you find out about variants
FBXO28 genetic testing looks for variants in the FBXO28 gene, usually using a blood sample or cheek swab. A lab reads the gene’s DNA sequence and compares it with the usual pattern to identify changes that may help explain a person’s symptoms or support a diagnosis.
When should I consider getting a genetic test?
Consider genetic testing for the FBXO28 gene if a child has unexplained seizures, delayed development, low muscle tone, or learning and behavior differences, especially if similar problems run in the family. Testing can help show whether a change in FBXO28 is the cause.
A genetic result is only one part of your health story
A genetic result can provide meaningful information, but how much it reveals depends on the condition and the specific type of variant involved. Many factors, including lifestyle, environment, age, and medical history, influence how the body functions over time. In some conditions, especially those shaped by many genes, genetic information provides context rather than certainty and is most useful when considered alongside other parts of care. In other situations, a genetic result may offer a clear answer. In areas such as medication response, genetic results can also help put individual experiences into perspective.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how people respond to medicines. Small differences in DNA can change how the body breaks down a drug, moves it through the body, or responds to it at its target. This is common and helps explain why the same treatment works well for one person but less well for another. It can also influence how sensitive someone is to side effects.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences affect the way people respond to medications. It studies the relationship between genes and drugs to help explain why treatments can work differently from one person to another. For many medicines, genes influence both how strongly a drug works and how the body processes it. This understanding can support more informed and more individualized treatment decisions. More information about this topic is available in the LearnHub.
Drugs influenced by the FBXO28 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medicine choices or predicting medication response, so any concerns about side effects, how well a treatment is working, or other health changes are best discussed with your doctor.