The SLC25A11 gene helps move key molecules across the inner membrane of mitochondria, the parts of cells that make most of your body’s energy. If it does not work properly, cells may have trouble managing energy, especially in high demand tissues such as the brain and muscles. Rare harmful variants in the SLC25A11 gene have been linked to mitochondrial conditions that can involve developmental delay, seizures, or low muscle tone. Some inherited variants are also associated with a higher chance of certain neuroendocrine tumors, including paraganglioma.
What is a gene?
Genes are stretches of DNA that carry instructions your cells use to make molecules or regulate processes throughout the body. In some cases, those instructions are for producing proteins, which serve as the working parts of cells. Other genes mainly help direct when certain processes happen, where they happen, and how strongly they are carried out. Taken together, genes affect how the body develops and works, and they can also influence how you respond to food, stress, or medications. For a closer look at this topic, you can learn more in the LearnHub.
Overview
SLC25A11Gene function
What if the gene works
The SLC25A11 gene helps move small molecules across the membrane inside mitochondria, your cells’ energy centers. This supports energy production and the balance of key building blocks used in everyday cell work.
Risk
What if the gene does not work
Some variants in the SLC25A11 gene can increase the chance of paragangliomas, especially in the head and neck, and sometimes pheochromocytoma. Milder and more severe variants may affect how much gene activity is lost and can influence whether tumors appear and when.
Treatment
What does that mean for your treatment
No treatment or drug choice is currently tailored specifically to pathogenic variants in the SLC25A11 gene. Management follows standard care for the condition a person has. The SLC25A11 gene is also being studied in cancer metabolism research, but this has not yet changed routine treatment.
Conditions associated with SLC25A11
Gene function
What if the gene works
Your cells need a steady exchange of fuel molecules to make energy smoothly. The SLC25A11 gene helps move key molecules across the inner membrane of mitochondria, the parts of cells that generate energy. This supports everyday metabolism and helps different parts of the cell work together efficiently.
The SLC25A11 gene helps mitochondria swap 2-oxoglutarate for malate across their inner membrane. This keeps important fuel molecules moving between the energy center and the rest of the cell.
By moving these molecules, it supports a transfer system that carries chemical energy from the cell fluid into mitochondria. This is part of how the SLC25A11 gene supports energy production during routine cell activity.
This transport also helps coordinate how cells use sugars and amino acids. It supports the steady recycling of molecules that cells need for everyday metabolism.
What is a variant?
Genetic variants are small changes in the DNA sequence within a gene. These changes are common and are part of normal human diversity, including differences in appearance, metabolism, and how the body responds to environmental influences. Many variants do not produce any noticeable effect and simply represent natural genetic variation. Sometimes, though, a variant can change a gene’s function more markedly and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the SLC25A11 gene can change the carrier protein’s shape, stability, or placement in the mitochondrial membrane, so it moves key molecules less effectively. In plain terms, SLC25A11 gene variant effects on mitochondrial transport can range from mild slowing to near-complete loss of activity. Some variants leave partial function, while more severe variants may make the protein unstable or unable to switch shape properly. This changes how cells handle energy-related chemical traffic.
How variants are linked to conditions
People with pathogenic variants in the SLC25A11 gene have a higher chance of hereditary paraganglioma and pheochromocytoma, including head and neck paragangliomas. An SLC25A11 gene variant linked to paraganglioma can help explain why these tumors cluster in some families. Some carriers develop one tumor, others more than one, and some never develop symptoms.
A variant is not necessarily a diagnosis
Genetic variants are a routine part of human biology and are widely present in the general population. Most do not have a direct effect on health and simply represent natural human diversity. For many genes, carrying a variant tied to a condition suggests a possible association rather than a definite diagnosis, particularly when several genes and environmental factors are involved. In some situations, however, one well-characterized variant in a particular gene can be 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 risk related to the SLC25A11 gene. If a change in this gene is found, risk may depend mainly on the exact variant and family history, and a doctor or genetic counselor can help explain what that means for you.
Inheritance of SLC25A11 variants
SLC25A11-related paraganglioma and pheochromocytoma susceptibility is inherited in an autosomal dominant pattern. This means a parent carrying a disease-causing variant in the SLC25A11 gene can pass it to a child with a 50% chance in each pregnancy. Sons and daughters are affected equally because the SLC25A11 gene is on chromosome 17, not a sex chromosome. In practical terms, how SLC25A11 gene variants are inherited usually means the variant can be passed down through either side of the family.
What does my SLC25A11 result mean for my family?
A harmful change in the SLC25A11 gene has been linked to an inherited risk of paraganglioma, a rare growth that can develop near certain nerves and glands. This risk often runs in families in a dominant pattern, so close relatives such as parents, brothers, sisters, and children may also carry the same gene change. That is why family members may want to discuss genetic testing and screening with their care team.
Genetic information
Genetic testing
How you find out about variants
Genetic testing for SLC25A11 variants usually uses a blood or saliva sample. A lab reads the DNA in the SLC25A11 gene, often as part of a larger inherited condition panel or exome test, and reports whether a variant was found and how it is currently classified.
When should I consider getting a genetic test?
Genetic testing for the SLC25A11 gene may be worth considering if you or close relatives have had paraganglioma or pheochromocytoma, which are rare tumors linked to nerve tissue, often near the adrenal glands. Testing can be especially helpful when tumors happen at a younger age, more than once, or in several family members.
A genetic result is only one part of your health story
A genetic result can provide valuable insight, but what it reveals depends on the condition and the specific type of variant. Many factors, including lifestyle, environment, age, and medical history, influence how the body works over time. For some conditions, especially those shaped by many genes, genetic information provides context rather than certainty and is most useful when considered alongside other parts of care. In other situations, a genetic result can offer a clear answer. In areas such as medication response, genetic results can also help place personal experiences in context.
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, moves, or responds to a drug, so the same treatment may work well for one person but less well for another. These differences are common and can influence how much benefit a medicine gives or how likely someone is to notice side effects.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences can shape a person’s response to medications. By looking at relationships between genes and drugs, it helps explain why the same treatment can affect people differently. For many medicines, genes influence both how strongly a drug works and how the body processes it. This information can support more informed, more individualized treatment decisions. You can read more about this topic in the LearnHub.
Drugs influenced by the SLC25A11 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding how medicines are chosen or adjusted, so any concerns about side effects, new symptoms, or medication changes are best discussed with your doctor.