The SLC7A13 gene helps move certain amino acids, especially in the kidneys, where they are normally filtered and taken back into the body. This gene helps your body keep the right balance of these building blocks rather than losing too much in urine. If the gene does not work well, amino acid handling may change and urine chemistry can shift in ways that may play a role in kidney stone risk. SLC7A13 is not a gene that has become widely known in popular culture.
What is a gene?
Genes are sections of DNA that carry instructions your cells use to make molecules or direct processes in the body. Some genes provide the instructions for making proteins, the parts of cells that do much of the work. Others mainly help regulate when certain processes happen, where they happen, and how strongly they operate. Together, genes affect how the body develops and works, and they can influence how you respond to food, stress, or medications. For a more detailed look at this topic, you can find more in the LearnHub.
Overview
SLC7A13Gene function
What if the gene works
The SLC7A13 gene helps kidney cells move certain amino acids, including cystine, across cell membranes. This supports normal reabsorption and helps keep urine chemistry balanced.
Risk
What if the gene does not work
Variants in the SLC7A13 gene may reduce how kidney cell transporters move certain amino acids across the cell membrane. Milder variants may partly lower transport, while more severe variants can lead to a larger loss of transporter activity.
Treatment
What does that mean for your treatment
No SLC7A13-specific treatment or management approach is currently established in clinical guidelines. The SLC7A13 gene is being studied for its role in kidney cystine transport and possible links to cystinuria.
Gene function
What if the gene works
Your kidneys use the SLC7A13 gene to move selected amino acids across cell membranes as urine is being processed. Its protein sits on the surface of kidney tubule cells and works with a partner transporter. Understanding how the SLC7A13 gene helps the kidneys handle amino acids makes it easier to see how the body holds on to useful building blocks.
The SLC7A13 gene helps kidney cells move certain amino acids, especially aspartate and glutamate, across their outer membrane. This keeps these small protein building blocks circulating in the body instead of being left behind in forming urine.
In the kidney tubules, this transporter helps reclaim useful amino acids after blood has been filtered. That everyday reabsorption step supports the body's normal nutrient balance and reduces amino acid loss into urine.
SLC7A13 works best when paired with a partner protein called SLC3A1, which helps place the transporter at the cell surface. Together they form a working transport pair that swaps amino acids across the membrane.
What is a variant?
A genetic variant is a minor 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 reacts to environmental factors. Many do not produce any noticeable effect and are simply natural genetic variation. Sometimes, though, a variant changes how a gene works more significantly and can contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the SLC7A13 gene can change the shape or stability of its transporter protein, making it harder for the protein to pair with its partner and reach the cell surface. The pattern of how SLC7A13 gene variants affect amino acid transport depends on the specific DNA change: milder variants may leave some transport activity, while more disruptive variants can leave very little or none. Some variants may also alter which amino acids the transporter recognizes.
How variants are linked to conditions
Right now, the SLC7A13 gene does not yet have a broadly confirmed link to a specific health condition, and research on SLC7A13 gene variants and health conditions is still developing. Anyone with a confirmed SLC7A13-related diagnosis should rely on guidance from their doctor or genetic counselor rather than general information.
A variant is not necessarily a diagnosis
Genetic variants are a routine part of human biology and are widely found in the general population. Most do not have a direct effect on health and instead reflect normal human variation. For many genes, carrying a variant associated with a condition indicates a possible link rather than a certain diagnosis, especially when several genes and environmental factors play a role. In some situations, though, a single well-characterized variant in a particular 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 SLC7A13 gene. If a change in this gene is found, overall risk can still depend on the exact variant and other genes, and discussing the result with a doctor or genetic counselor can help put it in context.
Inheritance of SLC7A13 variants
There is not yet a broadly confirmed, disease specific Mendelian pattern for how SLC7A13 gene variants are inherited, so the answer to how SLC7A13 gene variants are inherited is still developing as research grows. The SLC7A13 gene is located on chromosome 8, which is an autosome. That means each person usually inherits one copy of the SLC7A13 gene from each parent.
What does my SLC7A13 result mean for my family?
There is not yet a broadly confirmed inheritance pattern tied to a specific health condition for the SLC7A13 gene. If you have a specific SLC7A13 result and want to know what it could mean for relatives, a doctor or genetic counselor can explain it in the context of your personal and family history.
Genetic information
Genetic testing
How you find out about variants
To find out whether you carry a variant in the SLC7A13 gene, a lab can use genetic testing for SLC7A13 variants on a blood, saliva, or cheek swab sample. The test reads the gene’s DNA code and compares it with the usual sequence to look for variants. Results may show a variant, no relevant variant, or an uncertain finding.
When should I consider getting a genetic test?
There isn't yet a broadly established reason to test the SLC7A13 gene on its own. Genetic testing decisions are usually guided by your personal or family history, such as repeated kidney stones or related findings, and are best made with a doctor or genetic counselor.
A genetic result is only one part of your health story
A genetic result can be informative, but how much it reveals varies based on the condition and the type of variant involved. The way the body functions over time is also shaped by factors such as age, lifestyle, environment, and medical history. For some conditions, especially those affected by many genes, genetic information provides context rather than certainty and is best considered with other parts of care. In other situations, a genetic result may offer a clear answer. In areas like medication response, genetic results can also help make individual experiences easier to understand.
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 absorbs, breaks down, moves, or responds to a drug. This helps explain why the same treatment may work well for one person, have less effect in another, or cause more side effects in someone else. These differences are common and are one reason medication response can vary from person to person.
What is Pharmacogenetics?
Pharmacogenetics examines how differences in genes can affect the way a person responds to medication. It studies relationships 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 how strongly a drug works or 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 SLC7A13 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in predicting how medicines will work, so questions about side effects, medication choice, or changes in treatment are best discussed with your doctor.
History
In recent decades, awareness of this gene’s role has grown. The SLC7A13 gene was identified during the broader effort to map and classify the human solute carrier family as genome research accelerated in the late 1990s and early 2000s. Early reports placed it within a growing set of transport related genes, and later studies helped define where it is active in the body and why it drew clinical interest. From these first observations, research expanded steadily. Unlike genes that became widely known through major public stories, the SLC7A13 gene has remained mostly a topic in specialist research. Its history is one of gradual progress through gene mapping, sequencing, and laboratory studies rather than a single landmark moment.