The LRRC28 gene gives cells instructions for a protein that helps organize signaling inside the cell, and if it does not work properly, those signals may become less coordinated. This can affect how cells grow, communicate, and carry out routine tasks. Most people hear about the LRRC28 gene only through genetic testing or research rather than from public news stories.
What is a gene?
Genes are stretches of DNA that hold instructions your cells use to make molecules or regulate processes in the body. Some genes carry the directions for producing proteins, the parts of cells that do much of the work. Other genes mainly help determine when certain processes happen, where they take place, and how active they are. Together, genes affect how the body develops and works, and they can influence the way you respond to food, stress, and medications. For a more detailed look at this topic, you can find additional information in the LearnHub.
Overview
LRRC28Gene function
What if the gene works
The LRRC28 gene makes a protein that likely helps other proteins connect and pass signals inside cells. This supports routine cell communication and growth.
Risk
What if the gene does not work
Variants in the LRRC28 gene may reduce the LRRC28 protein’s ability to interact with other proteins inside cells. Milder variants may leave some function intact, while more severe variants can cause a greater loss of activity.
Treatment
What does that mean for your treatment
No LRRC28-specific treatment or management approach is currently established for pathogenic variants in the LRRC28 gene.
Gene function
What if the gene works
Inside your cells, the LRRC28 gene supports routine protein teamwork. Understanding what the LRRC28 gene does in cells helps explain how internal messages move in an orderly way. When it is working properly, cell proteins can connect and pass signals more smoothly.
The LRRC28 gene helps make a protein with leucine rich repeat sections that act like docking surfaces for other proteins. This supports orderly protein to protein contact during routine cell activity.
By helping proteins meet in the right place, the LRRC28 gene supports smooth transfer of signals inside cells. When it works properly, cells can coordinate everyday tasks in a more controlled way.
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 human diversity, such as differences in appearance, metabolism, or the way the body responds to environmental influences. Many do not cause any noticeable effect and simply represent natural genetic variation. Sometimes, though, a variant can change how a gene works more significantly and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the LRRC28 gene can change how much LRRC28 protein a cell makes and how well that protein keeps its shape, which shows how variants in the LRRC28 gene affect protein function. Milder DNA changes may partly alter protein stability or interactions, while more severe changes, including early stop signals or shifts in the genetic code, can lead to a shortened protein or no usable protein. Functional impact can range from subtle to marked loss of activity.
How variants are linked to conditions
Research on whether variants in the LRRC28 gene are linked to a specific inherited condition is still developing, and no broadly confirmed association is established yet. Anyone with a reported LRRC28 variant should interpret it with their doctor or genetic counselor, since individual test findings need clinical context.
A variant is not necessarily a diagnosis
Variants in genes are a routine feature of human biology and occur commonly across the population. Most do not directly affect health and instead represent normal human variation. For many genes, having a variant associated with a condition points to a possible link rather than a confirmed diagnosis, particularly when several genes and environmental influences contribute. There are cases, though, where one well understood variant in a particular gene is enough to establish the 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 LRRC28 gene. Anyone with concerns about personal or family risk can talk with a doctor or genetic counselor.
Inheritance of LRRC28 variants
There is not yet a broadly confirmed, disease-specific Mendelian inheritance pattern for the LRRC28 gene, so how variants of the LRRC28 gene are inherited in relation to a defined condition is still being worked out. LRRC28 is located on an autosome, which means a person inherits one copy of the LRRC28 gene from each parent.
What does my LRRC28 result mean for my family?
There is not yet a broadly confirmed inheritance pattern tied to a specific health condition for LRRC28. If you have a specific LRRC28 result, what it means for relatives depends on exactly what change was found and why testing was done. A genetics specialist can help explain whether any family members might also want to learn more about their own results.
Genetic information
Genetic testing
How you find out about variants
To find out whether you carry a variant in the LRRC28 gene, doctors use genetic testing for LRRC28 variants on a blood or saliva sample. A lab reads the DNA code in this gene, either on its own or as part of a broader inherited-condition panel, and classifies any change by how likely it is to affect health.
When should I consider getting a genetic test?
There is not yet a broadly established reason to test the LRRC28 gene in routine care. Testing decisions are usually guided by your symptoms and family history and are best discussed with a doctor or genetic counselor.
A genetic result is only one part of your health story
A genetic finding can provide useful insight, but how much it explains varies based on the condition and the type of variant identified. Over time, many factors, including lifestyle, environment, age, and medical history, influence how the body functions. In some conditions, especially those shaped by many genes, genetic information offers context rather than certainty and is best understood together with other parts of care. In other situations, a genetic result can give a clear answer. In areas like medication response, genetic results can also help make sense of individual experiences.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can influence how your body responds to medicines. Small differences in DNA can affect how a drug is absorbed, broken down, moved through the body, or how strongly it acts on its target. This helps explain why the same medication works well for one person, causes more side effects in another, or seems to have less effect in someone else. These differences are common and are one of several factors, along with age, liver and kidney function, and other medicines, that shape treatment response.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences can affect a person’s response to medications. It focuses on relationships between genes and drugs to better explain why the same treatment may work differently from one person to the next. For many medicines, genes influence both how the body processes a drug and how strong its effects are. This information can support more informed, more individualized treatment decisions. You can read more about this topic in the LearnHub.
Drugs influenced by the LRRC28 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in how people respond to medicines, so questions about side effects, new symptoms, or whether a treatment is right for you are best discussed with your doctor.