Your body uses the METTL22 gene to make an enzyme that adds a small chemical tag, called a methyl group, to certain proteins and helps fine tune how cells work. The protein made by this gene helps your cells control protein activity and support normal cell function. If the METTL22 gene does not work properly, these protein signals may be altered, which can affect how cells carry out routine tasks.
What is a gene?
Genes are stretches of DNA that carry instructions your cells use to make molecules or direct processes in the body. Some genes hold the code for proteins, the parts of cells that do much of the work. Others mainly regulate when specific processes happen, where they occur, and how strongly they operate. Together, genes affect how the body develops and functions, and they can influence how you respond to food, stress, or medications. More on this topic is available in the LearnHub.
Overview
METTL22Gene function
What if the gene works
In your body, the METTL22 gene helps cells add small chemical marks to certain proteins. This supports the cell’s internal framework and the routine movement of materials inside cells.
Risk
What if the gene does not work
Changes in the METTL22 gene can reduce how well cells add small chemical marks to certain proteins. Milder variants may partly lower this activity, while more severe variants can disrupt it more strongly and alter protein behavior inside cells.
Treatment
What does that mean for your treatment
No METTL22-specific treatment or management approach is currently established for people with a pathogenic or loss-of-function variant in the METTL22 gene.
Gene function
What if the gene works
Inside your cells, the METTL22 gene helps fine tune how certain proteins work. It does this by adding tiny chemical marks called methyl groups to specific proteins. Understanding METTL22 gene function helps show how cells adjust routine protein activity from moment to moment.
The METTL22 gene helps cells place methyl groups, small chemical marks, onto certain proteins. This fine tuning supports normal protein activity and steady everyday cell function.
What is a variant?
Within a gene, a genetic variant is a small difference in its DNA sequence. These changes are common and contribute to normal human diversity, including differences in appearance, metabolism, and how the body responds to environmental influences. Many variants have no noticeable effect and are simply part of natural genetic variation. At times, though, a variant can change a gene’s function more substantially and may contribute to, or cause, a genetic condition.
Genetic variants
What if the gene does not work
Variants in the METTL22 gene can change the shape, stability, or activity of its protein, which is the main way METTL22 gene variants affect protein function inside the cell. Milder variants may leave some activity in place, while more disruptive variants can greatly reduce protein production, interfere with proper folding, or weaken normal interactions with other cell components. This range can lead to partial or near-complete loss of cellular activity.
How variants are linked to conditions
Current evidence does not yet show a broadly confirmed link between the METTL22 gene and a specific health condition, so information on how METTL22 gene variants are linked to conditions is still developing. Anyone with a confirmed METTL22-related diagnosis should rely on guidance from their doctor or genetic counselor rather than general information.
A variant is not necessarily a diagnosis
Genetic variants are common in the general population and are a normal part of human biology. Most do not have a direct effect on health and instead represent natural human diversity. For many genes, carrying a variant associated with a condition indicates a possible link rather than a certain diagnosis, especially when several genes and environmental factors contribute. In some situations, though, 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 isn’t yet broadly confirmed evidence on specific factors that increase or reduce health risk related to the METTL22 gene. If a METTL22 change is found on testing, a doctor or genetic counselor can help explain what it may mean in the context of your personal and family history.
Inheritance of METTL22 variants
There is not yet a broadly confirmed disease inheritance pattern for METTL22 gene variants, so doctors do not currently describe a single established way that METTL22 variants are inherited for a specific METTL22 related condition. As research develops, this picture may become clearer. The METTL22 gene is located on an autosome, which means you inherit one copy from your mother and one copy from your father. In general, a METTL22 variant could be passed through either side of the family.
What does my METTL22 result mean for my family?
There is not yet a broadly confirmed inheritance pattern tied to a specific health condition for METTL22, though this can change as research develops. If you have a METTL22 result and want to understand what it could mean for relatives, a doctor or genetic counselor can explain it in the context of your family and the exact finding.
Genetic information
Genetic testing
How you find out about variants
Genetic testing for METTL22 variants usually uses a blood sample or saliva sample to read the DNA sequence of the METTL22 gene. Results may show whether a variant is present and whether it is known, uncertain, or unlikely to affect health.
When should I consider getting a genetic test?
There isn’t yet a broadly established, METTL22-specific reason for genetic testing in routine care. Testing decisions are usually made with a doctor or genetic counselor based on your symptoms, medical history, and family history.
A genetic result is only one part of your health story
Genetic results can offer useful insight, but how much they reveal depends on the condition and the type of variant involved. Over time, many factors shape how the body works, 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 understood together with other aspects 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 helps explain why the same treatment works well for one person, seems weaker for another, or causes more side effects in someone else. These differences are common and are one part of the bigger picture, along with age, liver and kidney function, other medicines, and overall health.
What is Pharmacogenetics?
Pharmacogenetics examines how differences in genes can shape the way a person responds to medication. It focuses on gene and drug patterns to help explain why the same treatment may work differently in different people. With many medicines, genes can influence how powerfully a drug works or how the body handles it. This information can support treatment decisions that are more informed and more tailored to the individual. More on this topic is available in the LearnHub.
Drugs influenced by the METTL22 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication choices, so questions about side effects, new symptoms, or whether a treatment is working are best discussed with your doctor or pharmacist.