The FAM180B gene gives cells instructions for a protein that appears to help support normal cell function in certain tissues. When this gene is less active or disrupted, cells may be more likely to lose some control over normal growth. Many variants are harmless, while a few may change how the gene works, and reduced FAM180B activity has been linked in research studies to some cancers, including colorectal cancer. In medicine, this gene is mainly of interest as researchers study how changes in cell behavior may relate to disease.
What is a gene?
Genes are stretches of DNA that carry instructions your cells can use to make molecules or guide processes in the body. Some genes provide the directions for making proteins, the parts of cells that do the work. Other genes mainly regulate when certain processes happen, where they occur, 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. To explore this topic in more detail, you can learn more in the LearnHub.
Overview
FAM180BGene function
What if the gene works
The FAM180B gene provides instructions for a protein that may help support routine cell activity and cell signaling.
Risk
What if the gene does not work
Changes in the FAM180B gene can be mild or more severe, and they may reduce how much FAM180B protein cells make or how well it works. This can alter the protein’s usual role inside cells.
Treatment
What does that mean for your treatment
No FAM180B-specific treatment or management approach is currently established in clinical guidelines.
Gene function
What if the gene works
In normal cells, the FAM180B gene is part of everyday gene activity. It gives cells instructions to make the FAM180B protein. This explains how the FAM180B gene works in the body during routine tissue function.
The FAM180B gene gives cells the instructions to make the FAM180B protein. When it works properly, cells produce this protein as part of normal tissue function.
Cells switch on the FAM180B gene as part of their usual gene program. Proper function means the protein is made in a steady, controlled way during normal cell activity.
What is a variant?
A genetic variant is a small difference in the DNA sequence within a gene. These differences are common and are part of normal human diversity, including variation in appearance, metabolism, and the way the body responds to environmental influences. Many variants do not have any noticeable effect and simply represent natural genetic variation. At times, though, a variant changes how a gene works more significantly and can contribute to or lead to a genetic condition.
Genetic variants
What if the gene does not work
How variants influence the FAM180B gene's function depends on the type of DNA change. Some variants may lower the amount of FAM180B message (RNA, the cell's working copy of DNA) or lead to a shortened protein that is unstable and broken down early, while others may cause smaller shifts in protein shape or interactions inside the cell. As with many genes, milder variants can leave partial activity, and more severe variants can reduce function much more.
How variants are linked to conditions
The FAM180B gene does not yet have a broadly confirmed link to a specific health condition, although evidence about FAM180B gene variants linked to disease is still developing. If you carry a variant in the FAM180B gene, your doctor or genetic counselor can interpret it alongside your symptoms, family history, and other test results.
A variant is not necessarily a diagnosis
Genetic variants are a normal part of human biology and are widely found 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 multiple genes and environmental factors play a role. 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 is not yet broadly confirmed evidence on specific factors that increase or reduce health risk related to the FAM180B gene. Anyone with concerns about their personal or family risk can talk with a doctor or genetic counselor.
Inheritance of FAM180B variants
There is not yet a broadly confirmed inheritance pattern tied to a specific human condition for the FAM180B gene, so inheritance of FAM180B gene variants is not described in the same clear way as for well-established dominant or recessive conditions. FAM180B is located on chromosome 11, which is an autosome. That means a person inherits one copy of the FAM180B gene from each parent.
What does my FAM180B result mean for my family?
There is not yet a broadly confirmed inheritance pattern tied to a specific health condition for FAM180B, although this may become clearer as research grows. If you have a FAM180B result and want to understand what it could mean for close relatives, a doctor or genetic counselor can review the exact finding in the context of your family history.
Genetic information
Genetic testing
How you find out about variants
Genetic testing is how doctors find out about variants in the FAM180B gene. A lab reads DNA from blood, saliva, or a cheek swab to look for changes, and results are usually reported as benign, likely benign, uncertain, likely pathogenic, or pathogenic based on the evidence available.
When should I consider getting a genetic test?
There is not yet a broadly established reason to test the FAM180B gene on its own in routine care. Decisions about genetic testing 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, but how much they reveal varies by the condition and the specific type of variant involved. Over time, the body is also shaped by factors such as 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 parts of care. In other situations, a genetic result may give a clear answer. In areas like medication response, genetic results can 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 genes can change how the body breaks down a drug, moves it through the body, or reacts to it at its target. This helps explain why the same medication may work well for one person, work less well for another, or cause more side effects in someone else. These differences are common and are one reason treatment response can vary from person to person.
What is Pharmacogenetics?
Pharmacogenetics examines how differences in a person’s genes can affect the way they respond to medicines. It focuses on links between genes and drugs to help explain why the same treatment may work differently from one person to another. For many medicines, genes can influence either how strongly a drug works or how the body handles it. Understanding this can support treatment decisions that are both better informed and more individualized. More detail on this topic is available in the LearnHub.
Drugs influenced by the FAM180B gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in how medicines work, so questions about side effects, trouble starting a new treatment, or whether a medication is right for you are best discussed with your doctor.