The ADCY5 gene helps nerve cells make a signaling molecule called cAMP, which supports smooth, controlled movement. If this gene does not work normally, brain signals that guide movement can become less steady, and some people develop repeated jerking, twisting, or writhing movements, often beginning in childhood. Symptoms may come and go and can flare during sleepiness, stress, or illness. Understanding this gene can help clarify why some genetic results are linked to ADCY5-related dyskinesia.
What is a gene?
Genes are sections of DNA that provide instructions your cells can use to make molecules or regulate processes in the body. Some genes hold the directions for producing proteins, which are the parts of cells that do much of the work. Other genes mainly control when certain processes happen, where they take place, and how strongly they operate. Taken together, genes influence how the body develops and functions, and they can shape how you respond to food, stress, or medications. You can find more on this topic in the LearnHub.
Overview
ADCY5Gene function
What if the gene works
The ADCY5 gene helps cells make cAMP, a chemical messenger that carries signals inside cells. This signaling supports brain pathways that help control movement and also affects heart and other tissue function.
Risk
What if the gene does not work
Variants in the ADCY5 gene can cause involuntary movements such as jerking, twisting, or chorea, often starting in infancy or childhood. Milder or more severe variants may change when symptoms begin, how strong they are, and whether development is affected.
Treatment
What does that mean for your treatment
A pathogenic variant in the ADCY5 gene does not currently point to a treatment plan or drug choice that is specific to this gene in clinical guidelines. The ADCY5 gene is being studied as a treatment target in movement conditions, and caffeine has helped some reported cases, but this has not become standard care.
Conditions associated with ADCY5
Gene function
What if the gene works
Your cells use the ADCY5 gene to turn outside messages into useful internal signals. Its protein makes cyclic AMP (cAMP), a small messenger that helps cells respond to hormones and nerve signals. This background helps explain what the ADCY5 gene does in the body during everyday cell signaling.
One of its main roles is to make cyclic AMP (cAMP), a small messenger inside cells. It does this by converting ATP, a cell energy molecule, into cAMP when a signal reaches the cell surface.
Inside your cells, the ADCY5 gene helps pass signals from surface receptors to internal control systems. This lets hormones and nerve signals trigger the next step in a clear, organized way.
Through cAMP, the ADCY5 gene helps control how strong a cell response should be and how long it lasts. This helps cells adjust their activity in a measured, well timed way.
The cAMP signal made through ADCY5 can switch on other helper proteins inside the cell. These protein signals help coordinate everyday processes such as communication, timing, and energy use.
What is a variant?
A genetic variant is a minor difference in the DNA sequence within a gene. These differences are common and are part of normal human diversity, including variation in appearance, metabolism, and how the body reacts to environmental influences. Many variants do not cause any noticeable effect and simply represent natural genetic variation. In some situations, though, a variant can change how a gene works more significantly and may contribute to or lead to a genetic condition.
Genetic variants
What if the gene does not work
Most disease-linked variants in the ADCY5 gene alter the protein’s shape or how it is regulated, causing nerve cells to make too much cyclic AMP, a signaling messenger. In practical terms, how ADCY5 gene variants affect function is that many keep the protein too active rather than shutting it down. Stronger activating variants can disrupt signaling more and are often linked to earlier onset or more frequent involuntary movements, while milder variants may have a lighter effect.
How variants are linked to conditions
Pathogenic variants in the ADCY5 gene cause ADCY5-related dyskinesia, a movement condition with involuntary jerking, writhing, or chorea that often begins in childhood. Symptoms can range from mild to more limiting, and some people notice episodes during sleep or on waking. Older medical papers may call part of this spectrum familial dyskinesia with facial myokymia. This is the main condition doctors mean when discussing an ADCY5 gene movement disorder.
A variant is not necessarily a diagnosis
Genetic variants are a usual part of human biology and are common across the general population. Most have no direct effect on health and simply 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 specific gene can be enough to confirm a diagnosis.
Are there things that can increase or change my risk?
For ADCY5, risk is mainly shaped by whether you carry a disease-causing change in the ADCY5 gene, either inherited from a parent or happening for the first time in you. There is not enough evidence to say lifestyle changes lower the chance of developing the condition. In people already living with ADCY5-related symptoms, stress, lack of sleep, and illness can make episodes worse.
Inheritance of ADCY5 variants
Inheritance of ADCY5 gene variants is usually autosomal dominant for ADCY5-related movement conditions. This means a person with a disease-causing variant in one copy of the ADCY5 gene can pass it on to a child, with a 50% chance in each pregnancy. Sons and daughters are affected at similar rates because the ADCY5 gene is on an autosome, not a sex chromosome. Some people have a new (de novo) variant that was not inherited from either parent.
What does my ADCY5 result mean for my family?
ADCY5-related movement conditions usually follow a dominant family pattern, so close relatives such as parents, brothers, sisters, and children may also carry the same gene change. If a parent has the same ADCY5 change, each child has a 1 in 2 chance of inheriting it. Some people have a new ADCY5 change that was not inherited from either parent, so a parent is not always the source.
Genetic information
Genetic testing
How you find out about variants
To find out whether you carry a variant in the ADCY5 gene, doctors use ADCY5 genetic testing on a blood or saliva sample. The lab reads the gene’s DNA sequence and compares it with the usual pattern to look for changes that may help explain symptoms such as involuntary movements or confirm a diagnosis.
When should I consider getting a genetic test?
Consider testing for the ADCY5 gene if there are unexplained jerky or writhing movements, muscle twisting, or repeated nighttime movement spells, especially when these start in childhood or run in the family. A genetic result can help confirm an ADCY5-related movement condition and guide family planning.
A genetic result is only one part of your health story
Genetic results can be informative, but how much they reveal depends on the condition and the specific type of variant. Over time, many factors shape how the body functions, including lifestyle, environment, age, and medical history. For some conditions, especially those influenced by many genes, genetic information provides context rather than certainty and is best considered alongside other parts of care. In other situations, a genetic result may offer a clear answer. In areas like 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 genes can change how the body breaks down a drug, how strongly it acts, or how likely side effects are. This helps explain why the same medication may work well for one person, seem less effective for another, or cause more sensitivity in someone else. These differences are common and are only one part of the picture, along with age, overall health, and other medicines.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences can influence the way a person responds to medication. It looks at relationships between genes and drugs to better explain why the same treatment may work differently from one person to another. For many medicines, genes affect both how strongly a drug works and how the body processes it. This information can help support more informed and individualized treatment decisions. To learn more about this topic, more information is available in the LearnHub.
Drugs influenced by the ADCY5 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication response, so concerns about medicines, side effects, or your overall health are best discussed with your doctor.
History
ADCY5 first entered the research literature as one of several genes identified in the adenylate cyclase family during the 1990s, when scientists were mapping genes involved in cell signaling. In recent decades, awareness of this gene’s role has grown. A major step came in the early 2010s, when variants in the ADCY5 gene were linked to a distinctive inherited movement condition marked by involuntary movements that can come and go during the day or during sleep. That discovery helped explain cases that had previously been difficult to classify. As medical science evolved, so did understanding of this gene. Researchers then recognized that ADCY5 related movement symptoms can vary widely from one person to another, even within the same family.