The USP22 gene helps control which genes are switched on or off, supports DNA repair, and helps cells grow in an orderly way. If it does not work properly, cells may lose some control over growth and how they respond to damage, which can play a role in some developmental conditions and cancers. In medicine, this gene is important because it helps regulate basic cell functions that many tissues rely on.
What is a gene?
Genes are stretches of DNA that give cells instructions to make molecules or regulate processes in the body. Some genes contain the code for proteins, the functional parts of cells. Others mainly help control when specific processes take place, where they happen, and how strongly they run. Together, genes affect how the body develops and works, and they can influence how you respond to food, stress, or medications. For a more detailed look at this topic, you can find more in the LearnHub.
Overview
USP22Gene function
What if the gene works
The USP22 gene helps control how other genes are turned on and off. It does this by modifying proteins that package DNA, which supports normal cell growth, renewal, and day-to-day cell function.
Risk
What if the gene does not work
Milder to more severe variants in the USP22 gene can partly reduce or more fully block removal of small control tags from proteins that package DNA, which may alter how other genes are switched on and how cells divide.
Treatment
What does that mean for your treatment
No USP22-specific treatment or drug choice is currently established in clinical guidelines for people with a pathogenic variant in the USP22 gene. USP22 is being studied in cancer research as a possible biomarker and drug target, but this has not yet led to routine treatment decisions.
Gene function
What if the gene works
In everyday cell life, the USP22 gene helps manage how DNA instructions are used. Its protein removes small tags called ubiquitin from DNA packaging proteins, which can change how easy it is for a cell to read certain genes. This is a key part of how the USP22 gene works in your cells day to day.
USP22 removes ubiquitin, a small control tag, from proteins that help package DNA. This helps reset signals on those proteins so cells can manage gene activity in a measured way.
By changing tags on DNA packaging proteins, USP22 helps parts of the DNA become easier to reach. This lets cells open the right sections of their genetic instructions for routine cell tasks.
USP22 works as part of a larger helper group called SAGA that supports gene activity. In that setting, it helps cells copy selected DNA instructions into RNA, an early step in making proteins.
What is a variant?
A genetic variant is a slight difference in the DNA sequence within a gene. These differences are common and help shape normal variation among people, including differences in appearance, metabolism, and how the body responds to environmental influences. Many variants do not cause any noticeable effect and simply reflect natural genetic variation. In some cases, though, 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
In the USP22 gene, milder variants may partly reduce protein stability or its ability to interact with the SAGA complex (a protein group that helps control gene activity), while more severe variants can sharply lower or eliminate enzyme activity. This is how USP22 gene variants affect protein function at a cellular level. Depending on the change, cells may make less working protein or a shortened protein that cannot bind its usual partners.
How variants are linked to conditions
At this time, USP22 gene variants are not yet broadly confirmed as a cause of a specific inherited health condition. Research on USP22 gene variants and disease risk is still developing, and any confirmed USP22-related diagnosis should be interpreted with guidance from a doctor or genetic counselor rather than general online information.
A variant is not necessarily a diagnosis
Variants in genes are a routine part of human biology and are widespread across the general population. Most do not directly affect health and simply reflect normal human diversity. For many genes, having a variant associated with a condition points to a possible link, not a certain diagnosis, especially when several genes and environmental influences play a role. In some situations, though, one well understood variant in a particular 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 USP22. If USP22 appears on a genetic test report, a doctor or genetic counselor can help explain what it may mean in the context of your personal and family history.
Inheritance of USP22 variants
There is not yet a broadly confirmed Mendelian pattern for how USP22 gene variants are inherited in a specific, well-established USP22 related condition, and understanding of USP22 gene inheritance may develop as research grows. The USP22 gene is located on chromosome 17, which is an autosome, so you inherit one copy of this gene from each parent. In general, changes in autosomal genes can be passed down through either side of the family.
What does my USP22 result mean for my family?
There is not yet a broadly confirmed inheritance pattern tied to a specific condition for USP22, though this understanding can change as research develops. If you have a specific USP22 result and questions about what it could mean for your family, a doctor or genetic counselor can help explain it in the context of your family history.
Genetic information
Genetic testing
How you find out about variants
To find out whether you carry a change in the USP22 gene, clinicians use genetic testing for variants in the USP22 gene on a blood sample, saliva, or cheek swab. A lab reads the DNA code and compares it with the usual sequence to identify variants and help clarify whether a change may explain health findings or a family pattern.
When should I consider getting a genetic test?
There is not yet a broadly established, USP22-specific reason for genetic testing in routine care. Testing decisions are usually based on your personal health and family history and are best discussed with a doctor or genetic counselor.
A genetic result is only one part of your health story
Genetic results can be informative, though what they reveal depends on the condition being considered and the kind of variant involved. How your body functions over time is also shaped by many other factors, including lifestyle, environment, age, and medical history. In some conditions, especially those influenced by many genes, genetic information offers context rather than certainty and is best considered together with other parts of care. In other situations, a genetic result can provide a clear answer. In areas like medication response, genetic results may also help put individual experiences into context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how people respond to medicines. Small differences in the genes involved in absorbing, breaking down, or responding to a drug can mean that the same treatment works well for one person, works less well for another, or causes more side effects. This kind of variation is common and helps explain why medication response is not the same for everyone.
What is Pharmacogenetics?
Pharmacogenetics looks at how genetic differences can shape a person’s response to medications. It examines links between genes and drugs to help explain why the same treatment can 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 support more informed and more individualized treatment decisions. You can read more about this topic in the LearnHub.
Drugs influenced by the USP22 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication choice or dose, so general questions about medicines, side effects, or treatment changes are best discussed with your doctor. USP22 has been studied in cancer research as a possible marker of how some tumors respond to treatment, but this is not yet used routinely to guide prescribing.
History
In the early 2000s, researchers identified the USP22 gene while studying patterns of gene activity linked to cancer outcomes. It drew attention after being included in a widely discussed “death from cancer” gene signature, which connected its activity with a higher chance of cancer spread in several tumor types. From these first observations, research expanded steadily. Scientists later placed the USP22 gene within a larger protein complex that helps control how genes are turned on and off, which gave its earlier cancer links more context. Over time, the USP22 gene became a regular focus in cancer biology and epigenetics research, especially in studies of tumor growth, treatment response, and prognosis.