The TMEM63A gene helps make a channel that lets charged particles move in and out of cells when they are stretched or their fluid balance changes, which supports normal brain and nerve function. If this gene does not work properly, nerve cell signaling and early development can be affected. People with harmful variants in the TMEM63A gene may have developmental delay, low muscle tone, seizures, or problems with movement and balance. TMEM63A is mainly known in medical genetics and has not become a widely recognized public gene.
What is a gene?
A gene is a stretch of DNA that carries instructions your cells can use to make molecules or regulate activities in the body. Some genes hold the code for proteins, which are the parts of cells that do much of the work. Others mainly direct when certain activities take place, where they occur, and how active they are. Taken as a whole, genes affect how the body develops and works, and they can also influence how you respond to food, stress, or medications. If you want to go into this topic in more detail, you can read more in the LearnHub.
Overview
TMEM63AGene function
What if the gene works
The TMEM63A gene helps make a channel protein that lets charged particles move across cell membranes. This supports how cells respond to stretch and changes in fluid balance, including in nerve cells.
Risk
What if the gene does not work
Variants in the TMEM63A gene are linked to a neurodevelopmental condition that can affect learning, development, muscle tone, and sometimes seizures. Milder and more severe variants can lead to different ages of onset and different symptom patterns.
Treatment
What does that mean for your treatment
No TMEM63A-specific treatment or management approach is currently established in clinical guidelines. TMEM63A is being studied in early research on mechanosensitive ion channels, but this has not yet led to a gene-directed drug choice.
Gene function
What if the gene works
Cells use the TMEM63A gene to sense physical changes in their membranes and surrounding fluid. Its protein sits in the membrane and acts like a gated pathway for charged particles. Understanding the TMEM63A gene's function helps explain how cells stay balanced when stretch, pressure, or water movement changes.
The TMEM63A gene helps cells detect when their membrane is stretched or under physical force. This gives cells a way to respond to everyday changes in pressure and movement.
Its protein forms part of a channel that can let positively charged ions move across the membrane when it opens. That flow helps cells turn a physical change into an internal signal.
This channel supports how cells adjust to shifts in fluid and salt levels around them. By linking membrane tension to ion movement, it helps cells keep a steadier internal balance.
What is a variant?
A genetic variant is a minor difference in the DNA sequence within a gene. These differences are common and help shape normal human diversity, including variation in appearance, metabolism, and the way the body reacts to environmental influences. Many do not have any noticeable effect and are simply part of natural genetic variation. Sometimes, though, a variant can change how a gene works to a greater extent and may contribute to or lead to a genetic condition.
Genetic variants
What if the gene does not work
TMEM63A gene variants can change how the protein folds, reaches the cell membrane, or opens as a channel when a cell is stretched. Milder changes may leave some channel activity, while more disruptive variants can make the protein unstable, trap it inside the cell, or disrupt ion flow more strongly. This range helps explain how TMEM63A gene variants affect protein function to different degrees.
How variants are linked to conditions
Broadly confirmed links between variants in the TMEM63A gene and specific health conditions have not yet been established, though this may change as research develops. If you have a confirmed TMEM63A-related finding, your doctor or genetic counselor can explain what it may mean for you more accurately than general information.
A variant is not necessarily a diagnosis
Genetic variants are a routine part of human biology and are common throughout the general population. Most do not have a direct effect on health and simply reflect natural human variation. 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, however, 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 TMEM63A gene. For many living with a TMEM63A change, risk appears to depend mostly on the exact genetic change rather than lifestyle or environmental factors.
Inheritance of TMEM63A variants
TMEM63A gene variants linked to disease are inherited in an autosomal dominant pattern. This means one changed copy of the TMEM63A gene can be enough to cause the condition, and an affected parent can pass it to each child with a 50% chance. The inheritance pattern of TMEM63A gene variants also includes new, de novo variants, which arise for the first time in a child and are not inherited from either parent.
What does my TMEM63A result mean for my family?
For TMEM63A, the clearest pattern reported so far is a dominant one, which means close relatives such as parents, brothers, sisters, and children may also carry the same gene change in some families. At the same time, some reported cases happened as a new gene change in the affected child, so a parent may not carry it. What this means for relatives depends on the exact TMEM63A result and the condition linked to it.
Genetic information
Genetic testing
How you find out about variants
To find out whether you carry a variant in the TMEM63A gene, doctors can use genetic testing for TMEM63A variants on a blood or saliva sample. The lab reads the DNA sequence of the TMEM63A gene and compares it with the usual sequence to look for changes.
When should I consider getting a genetic test?
There is not yet a broadly established TMEM63A-specific reason for genetic testing in most people. Testing decisions are best made with a doctor or genetic counselor, based on symptoms such as unexplained developmental or nerve-related problems, or a family history that suggests an inherited condition.
A genetic result is only one part of your health story
A genetic result can be quite informative, but how much it reveals depends on the condition and the kind of variant involved. Over time, the way the body works is also shaped by many other 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 most useful when considered alongside other parts of care. In other situations, a genetic result may give a clear answer. In areas such as response to medications, genetic results can also help put individual experiences into context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how people respond to medicines. Two people can take the same treatment and have different results because their bodies may absorb, break down, or respond to the drug in different ways. This is a common part of human biology and can influence how well a medicine works or 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 the same treatment may work differently from one person to another. For many medicines, genes can influence how strongly a drug works or how the body handles it. This understanding can support treatment decisions that are better informed and more individualized. More information on this topic is available in the LearnHub.
Drugs influenced by the TMEM63A gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in how medicines work, so questions about side effects, new symptoms, or concerns when starting or changing a treatment are best discussed with your doctor.