The SLC27A5 gene gives your liver instructions for a protein that helps take up certain fats and process bile acids, which help your body digest fat. In medicine, this gene is important because it helps regulate how the liver handles fats and bile. If the SLC27A5 gene does not work properly, bile acid balance can be disturbed and some people may develop liver problems, including cholestasis or other signs of liver injury. This gene is mainly discussed in liver genetics rather than in popular culture.
What is a gene?
A gene is a section of DNA that holds information your cells can use to make molecules or regulate processes in the body. Some genes carry the instructions for making proteins, the parts that do the work inside cells. Other genes mainly help determine when, where, and how strongly certain processes occur. Together, genes affect how the body develops and works, and they can influence how you respond to food, stress, or medications. If you want to explore this subject in more detail, you can learn more in LearnHub.
Overview
SLC27A5Gene function
What if the gene works
In the liver, the SLC27A5 gene helps move and process fatty acids and helps recycle bile acids. This supports normal fat handling and digestion.
Risk
What if the gene does not work
Variants in the SLC27A5 gene can reduce a liver protein that helps handle long-chain fats and recycle bile acids. Milder and more severe variants may lower this activity to different degrees.
Treatment
What does that mean for your treatment
For the SLC27A5 gene, no gene-specific treatment or drug-selection approach is currently established in clinical guidelines for people with a pathogenic or loss-of-function variant. The SLC27A5 gene is being studied mainly as a biomarker and possible drug target in liver disease and liver cancer research.
Conditions associated with SLC27A5
Gene function
What if the gene works
Much of this gene’s day-to-day work happens in the liver, where your body processes fats and recycles bile. The SLC27A5 gene helps liver cells bring in certain long-chain fats and prepare them for use or storage. It also supports the normal handling of bile acids, which help digest dietary fat.
The SLC27A5 gene helps liver cells take in certain long-chain fats from the blood. This is a key part of how the SLC27A5 gene helps the liver handle fats each day.
Its protein links fatty acids to coenzyme A, a helper molecule cells use to process fats. This gets fats ready for energy use, storage, or building other needed molecules.
This gene also helps liver cells process bile acids after they return from the intestine. That recycling step supports steady bile flow and helps your body digest and absorb dietary fats.
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 human diversity, such as differences in appearance, metabolism, or how the body responds to environmental influences. Many variants do not have any noticeable effect and simply reflect natural genetic variation. Sometimes, 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 SLC27A5 gene can change the protein’s shape or reduce how much of it a cell makes, lowering fatty acid uptake and bile acid processing in liver cells. This is how SLC27A5 gene variants affect fatty acid transport in liver cells. Milder variants may leave some activity, while more severe variants can cause little or no working protein and a larger functional effect.
How variants are linked to conditions
At this stage, SLC27A5 gene variants and disease links are still being clarified. The SLC27A5 gene does not yet have a broadly confirmed link to a specific health condition, though this can change as research develops. If you carry a reported variant in the SLC27A5 gene, its meaning is best interpreted with your doctor or genetic counselor in the context of your own health and family history.
A variant is not necessarily a diagnosis
Genetic variants are common across the general population and are a routine part of human biology. Most do not directly affect health and simply contribute to normal human diversity. For many genes, having a variant associated with a condition points to a possible link, not a certain diagnosis, particularly when several genes and environmental influences play a role. There are cases, though, where one well-characterized variant in a particular gene is enough to confirm the diagnosis.
Are there things that can increase or change my risk?
There is not yet broadly confirmed evidence on specific factors that clearly increase or reduce health risk related to the SLC27A5 gene. Anyone with concerns about personal or family risk can speak with a doctor or genetic counselor for advice based on their own health history.
Inheritance of SLC27A5 variants
There is not yet a broadly confirmed, disease-specific inheritance pattern for the SLC27A5 gene in human genetics, so SLC27A5 gene variants are inherited in families according to general chromosome inheritance rather than a well-established single Mendelian pattern. The SLC27A5 gene is located on chromosome 19, which is an autosome. This means you inherit one copy of the SLC27A5 gene from your mother and one copy from your father.
What does my SLC27A5 result mean for my family?
There isn't yet a broadly confirmed inheritance pattern tied to a specific condition for the SLC27A5 gene, though this understanding can change as research develops. If you have a specific SLC27A5 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 personal and family history.
Genetic information
Genetic testing
How you find out about variants
To look for changes in the SLC27A5 gene, doctors use genetic testing for SLC27A5 variants on a blood, saliva, or cheek swab sample. A lab reads the DNA code and checks for variants that may help explain an inherited liver condition or clarify whether a family variant is present.
When should I consider getting a genetic test?
There is not yet a broadly established reason to order a genetic test just for the SLC27A5 gene. Testing is usually considered as part of a wider genetics workup based on personal or family history, especially when ongoing liver problems need more explanation.
A genetic result is only one part of your health story
Genetic test results can be informative, but how much they reveal depends on the condition and on the kind of variant involved. Many other factors, including lifestyle, environment, age, and medical history, also shape how the body works over time. In some conditions, especially those influenced by many genes, genetic information offers context rather than certainty and is best considered alongside 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. Some people break down or move a drug through the body differently, which can change how much of the medicine reaches its target. This helps explain why the same treatment works well for one person, works less well for another, or causes more side effects in someone who is more sensitive to it.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences affect a person’s response to medications. It studies the relationship between genes and drugs to help explain why the same treatment may work differently from one person to another. For many medicines, genes influence how strongly a drug works or how the body processes it. This information can support more informed and more personalized treatment decisions. You can learn more about this topic in the LearnHub.
Drugs influenced by the SLC27A5 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in predicting medication response. If you have concerns about side effects, how well a medicine is working, or possible interactions with your current treatment, discuss them with your doctor.
History
SLC27A5 entered the research literature in the late 1990s, when scientists were mapping a group of related genes involved in handling fats in the body. It was first described under the name FATP5, reflecting its place in the fatty acid transport protein family and its strong activity in the liver. Initially understood only through visible traits, later recognized as tied to a specific gene, its identity became clearer as human genome research expanded in the early 2000s. From these first observations, research expanded steadily, especially through animal studies and liver biology studies that helped confirm its importance. Unlike genes that became widely known through public figures or major screening campaigns, SLC27A5 has remained mainly a research and clinical science gene.