The PHF23 gene helps cells read chemical marks that tell other genes when to turn on, which supports normal growth and development. If this process is disrupted, cells may lose some control over growth and gene activity. In medicine, this gene is important because changes involving PHF23 have been studied in some blood cancers.
What is a gene?
Genes are segments of DNA that carry instructions your cells use to make molecules or regulate processes in the body. Some genes hold the information needed to produce proteins, the parts of cells that do much of the work. Others mainly help direct when, where, and how strongly certain processes take place. Taken together, genes affect how the body develops and functions, and they can shape how you respond to food, stress, or medications. To explore this topic in more detail, you can find more in LearnHub.
Overview
PHF23Gene function
What if the gene works
The PHF23 gene helps control which genes cells turn on by recognizing chemical marks on proteins that package DNA. This supports normal cell growth and development.
Risk
What if the gene does not work
Changes in the PHF23 gene may alter how cells read small chemical marks on proteins that package DNA, which can disrupt normal gene activity. Milder and more severe variants can affect this control to different degrees.
Treatment
What does that mean for your treatment
The PHF23 gene has no established treatment or management approach specific to a pathogenic variant or loss of function in current clinical care. PHF23 is being studied in cancer research, especially when it is part of the NUP98-PHF23 fusion in some leukemias, where drugs that block its chromatin binding (how it attaches to DNA packaging) are under investigation.
Gene function
What if the gene works
Inside the nucleus, the PHF23 gene helps cells organize access to their genetic instructions. Its protein reads small chemical marks on DNA packaging proteins, which helps guide normal gene activity. Understanding what the PHF23 gene does in your cells helps explain how routine cell functions stay coordinated.
PHF23 recognizes chemical marks on histones (proteins that DNA wraps around). This lets cells identify stretches of DNA that are set up for active gene use.
By reading those marks, the PHF23 gene helps guide which genes are turned on. This supports orderly gene activity and helps cells use the right instructions for their usual jobs.
What is a variant?
A genetic variant is a small difference in the DNA sequence within a gene. These differences are common and help shape normal human diversity, such as variation in appearance, metabolism, or how the body responds to environmental influences. Many variants do not have any noticeable effect and simply represent natural genetic variation. In some cases, though, a variant can change how a gene functions to a greater extent and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the PHF23 gene can affect protein function by changing the shape or stability of the PHF23 protein, especially the region that reads histone marks (chemical tags on DNA packaging proteins). This may weaken binding inside the cell nucleus and change how the protein works with other proteins that help control gene activity. Milder variants may only partly reduce this activity, while more severe variants can shorten the protein, make it unstable, or greatly reduce its effect in the cell.
How variants are linked to conditions
At present, the PHF23 gene does not yet have a broadly confirmed link to a specific inherited health condition, though research on PHF23 gene variants and disease associations is still evolving. If you have a reported change in the PHF23 gene, your doctor or genetic counselor can interpret it in the context of your personal and family health history.
A variant is not necessarily a diagnosis
Genetic variants are a routine part of human biology and are widely seen in the general population. Most do not have a direct effect on health and simply reflect natural human diversity. For many genes, carrying a variant associated with a condition suggests a possible link rather than a definite diagnosis, especially when several genes and environmental factors play a role. In some situations, though, a single well-characterized variant in a particular gene can be 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 PHF23 gene. Anyone with concerns about a PHF23 result or family history can discuss their personal risk with a doctor or genetic counselor.
Inheritance of PHF23 variants
There is not yet a broadly confirmed, disease-associated Mendelian PHF23 inheritance pattern used in routine human genetics, and this picture may become clearer as research develops. For families asking how the PHF23 gene is inherited, the current answer is that no single autosomal dominant, autosomal recessive, or X linked pattern is firmly established for a specific inherited PHF23 related condition. The PHF23 gene is located on chromosome 17, which is an autosome, so you inherit one copy from each parent.
What does my PHF23 result mean for my family?
There isn't yet a broadly confirmed inheritance pattern tied to a specific inherited condition for PHF23, though this understanding can change as research develops. If you have a specific PHF23 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 result.
Genetic information
Genetic testing
How you find out about variants
To find variants in the PHF23 gene, a lab reads the gene's DNA from a blood or saliva sample, often as part of a test that checks several genes at once. This is how genetic testing for PHF23 variants works, and the report shows whether a variant was found and how it is classified.
When should I consider getting a genetic test?
There isn't yet a broadly established, PHF23-specific clinical reason for testing. Testing decisions are best made with a doctor or genetic counselor based on your personal health history, family history, and whether PHF23 is being included in a broader genetic test.
A genetic result is only one part of your health story
Genetic results can provide meaningful information, but how much they show depends on the condition and the specific type of variant. Many factors, including age, lifestyle, environment, and medical history, influence how the body works over time. For some conditions, especially those shaped by many genes, genetic information provides context rather than certainty and is best understood together with other parts of care. In other situations, a genetic result can offer a clear answer. In areas like medication response, genetic results can help put individual experiences into context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how people respond to medicines. Some people break down a drug more quickly, while others process it more slowly, so the same treatment may not work the same way for everyone. These inherited differences are common and can influence how much benefit a medicine gives or how likely someone is to have side effects. Medication response also depends on other factors, including age, liver and kidney function, and other medicines being taken.
What is Pharmacogenetics?
Pharmacogenetics examines how differences in genes affect the way people respond to medications. It studies gene and drug patterns to help explain why the same treatment may 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 information can help support more informed, individualized treatment decisions. You can explore this topic in more detail in the LearnHub.
Drugs influenced by the PHF23 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication response, so general concerns about your health, medicines, or side effects are best discussed with your doctor. Seek medical advice promptly for severe side effects, trouble breathing, swelling, fainting, or symptoms that are quickly getting worse.