The TRIP13 gene helps cells check and sort chromosomes correctly when they divide. If it does not work properly, cells can end up with the wrong number of chromosomes, which may affect growth and development and can raise the chance of certain childhood cancers, especially Wilms tumor. Some people with pathogenic variants in both copies of the gene have a rare condition called mosaic variegated aneuploidy, which can involve developmental differences and short stature.
What is a gene?
Genes are sections of DNA that provide instructions your cells use to make molecules or manage processes in the body. Some genes carry the information needed to produce proteins, which are the functional parts of cells. Others mainly help regulate when certain processes happen, where they take place, and how active they are. Taken together, genes affect how the body grows and works, and they can influence how you respond to food, stress, and medications. For a deeper look at this topic, you can find more in the LearnHub.
Overview
TRIP13Gene function
What if the gene works
The TRIP13 gene helps cells divide in an orderly way. It supports safety checks during cell division. It also helps chromosomes pair and be repaired during sperm and egg formation.
Risk
What if the gene does not work
More disruptive variants in the TRIP13 gene can cause growth restriction, small head size, developmental delay, and an increased chance of Wilms tumor, while milder changes may lead to later or less pronounced features.
Treatment
What does that mean for your treatment
No treatment or drug choice is currently guided specifically by a pathogenic variant in the TRIP13 gene. In research, the TRIP13 gene is being studied as a possible cancer biomarker and drug target, but this has not yet led to standard care.
Conditions associated with TRIP13
Gene function
What if the gene works
Your cells use the TRIP13 gene during key steps of cell division. Its protein acts like a reset tool for other proteins, helping chromosomes stay coordinated as cells divide and as reproductive cells go through meiosis. Understanding how the TRIP13 gene helps cell division gives useful context for its everyday role in the body.
The TRIP13 gene helps cells move through division only after chromosomes are properly attached for separation. This keeps the timing of cell division orderly and supports accurate chromosome sorting.
Its protein reshapes MAD2, a checkpoint helper protein, so a temporary stop signal can switch off at the right time. This lets the cell continue division after earlier safety checks are complete.
TRIP13 uses ATP, the cell's fuel molecule, to change the shape of certain control proteins. These shape changes help important cell signals turn on or off in an organized sequence.
In cells that make eggs or sperm, the TRIP13 gene helps chromosomes pair, exchange small DNA segments, and then separate in a controlled way. This supports meiosis, the special cell division used for reproduction.
What is a variant?
A genetic variant is a minor change in the DNA sequence of a gene. These changes are common and help shape normal differences among people, such as appearance, metabolism, or how the body responds to environmental influences. Many variants do not cause any noticeable effect and are simply part of natural genetic variation. In some cases, however, 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
Variants in the TRIP13 gene can weaken or block how the protein uses energy to change the shape of partner proteins during cell division and during egg or sperm cell formation, which helps explain how TRIP13 gene variants affect chromosome control. Some variants mainly reduce protein stability or lower how much protein the cell makes, while more severe variants can nearly abolish activity. This often leaves cells with abnormal chromosome numbers, and greater loss of function may be linked to earlier or broader features of TRIP13-related conditions.
How variants are linked to conditions
Pathogenic variants in both copies of the TRIP13 gene can cause mosaic variegated aneuploidy syndrome 2, a rare inherited condition associated with growth and developmental differences and a higher chance of childhood cancer, especially Wilms tumor. This is the clearest answer to how TRIP13 gene variants are linked to conditions. Cancer risk can vary between families, but this gene-condition link is well established.
A variant is not necessarily a diagnosis
Genetic variants are a routine and common feature of human biology across the general population. Most do not directly affect health and instead reflect natural human diversity. For many genes, carrying a variant associated with a condition suggests a possible link rather than a certain diagnosis, especially when several genes and environmental factors are involved. 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?
For TRIP13, there is no broadly confirmed evidence that specific lifestyle or environmental factors clearly increase or lower gene-related risk. If someone carries a disease-causing TRIP13 change, the risk is thought to come mainly from the genetic change itself, so follow-up care and monitoring matter more than lifestyle changes.
Inheritance of TRIP13 variants
For families trying to understand how TRIP13 gene variants are inherited, the pattern is autosomal recessive. This means a child usually inherits one altered copy of the TRIP13 gene from each parent. Parents who carry one variant are often unaffected themselves. When both parents are carriers, each pregnancy has a 25% chance of being affected, a 50% chance of resulting in a carrier child, and a 25% chance of resulting in a child who did not inherit either familial variant.
What does my TRIP13 result mean for my family?
For families with a disease-causing TRIP13 result linked to a recognized condition, it is usually inherited in a recessive pattern. This often means parents are healthy carriers, brothers and sisters may also be affected or may be carriers, and some other blood relatives could be carriers too. Family members may want to talk with their care team about whether the result is relevant for them.
Genetic information
Genetic testing
How you find out about variants
To find out whether you carry a variant in the TRIP13 gene, TRIP13 gene testing usually examines DNA from a blood sample or cheek swab. A lab reads the gene’s code and checks for changes that may help explain a diagnosed condition or confirm a suspected one.
When should I consider getting a genetic test?
Genetic testing for the TRIP13 gene may be considered when a child has poor growth, a very small head size, developmental delay, or unusual chromosome changes that point to a rare inherited condition linked to this gene. It may also be considered if Wilms tumor runs in the family or a TRIP13 variant is already known in a relative.
A genetic result is only one part of your health story
Genetic test results can provide useful insight, but how much they explain depends on the condition and on the kind of variant found. Over time, the body is shaped by many factors, including lifestyle, environment, age, and medical history. In some conditions, particularly those affected by many genes, genetic information offers context rather than certainty and makes the most sense when considered with other parts of care. In other situations, a genetic result can give a clear answer. For topics like medication response, genetic results may also help put personal experiences in context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how your body responds to medicines. This helps explain why the same treatment works well for one person, works less well for another, or causes more side effects in someone else. In many cases, inherited differences change how the body breaks down a drug, moves it through the bloodstream, or how strongly cells respond to it. These differences are common and can influence both how well a medication works and how sensitive a person may be to it.
What is Pharmacogenetics?
Pharmacogenetics examines how differences in a person’s genes can affect their response to medications. It focuses on the relationship between genes and drugs to better 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 processes it. This understanding can help support treatment decisions that are more informed and more individualized. More information about this topic is available in the LearnHub.
Drugs influenced by the TRIP13 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication choice or dose. Questions about medicines, side effects, or other health concerns are best discussed with your doctor.