The SLC39A13 gene helps move zinc inside cells, which supports the building and upkeep of connective tissue. This gene plays an important role in how your body forms skin, joints, bones, and teeth. If the gene does not work properly, some people develop a rare inherited form of Ehlers-Danlos syndrome with loose joints, soft or stretchy skin, easy bruising, short stature, and changes in bone shape. The SLC39A13 gene is mainly known in rare disease genetics rather than in mainstream public health discussions.
What is a gene?
Genes are stretches of DNA that carry instructions your cells use to make molecules or guide activities in the body. Some genes provide the directions for building proteins, which are the parts of cells that do much of the work. Others mainly regulate when certain processes happen, where they take place, and how active they are. Taken together, genes affect how the body develops and functions, and they can influence how you respond to food, stress, and medications. You can learn more about this in the LearnHub.
Overview
SLC39A13Gene function
What if the gene works
The SLC39A13 gene helps move zinc inside cells. This supports connective tissue, bone, and skin development and helps cells respond to growth signals.
Risk
What if the gene does not work
Changes that reduce the SLC39A13 gene's function are linked to a rare Ehlers-Danlos syndrome with short stature, loose joints, stretchy skin, and muscle weakness. Milder or more severe variants can shape when features appear and how marked they are.
Treatment
What does that mean for your treatment
No treatment or drug choice strategy specific to pathogenic variants in the SLC39A13 gene is currently established. The SLC39A13 gene is being studied for its role in zinc handling and connective tissue biology, but this has not yet led to targeted therapy.
Conditions associated with SLC39A13
Gene function
What if the gene works
Your cells use the SLC39A13 gene to move zinc to the right place inside the cell. Zinc is a mineral that many proteins need for routine cell work. Understanding how the SLC39A13 gene works in the body helps explain how cells keep their internal balance and support healthy tissue building.
The SLC39A13 gene helps move zinc between compartments inside the cell. This keeps zinc available where it is needed for normal cell activity.
By guiding zinc to the right cellular spaces, this gene helps maintain zinc balance. That balance supports many proteins that rely on zinc to work properly.
Zinc helps tune signaling pathways, the messages cells use to coordinate growth and tissue upkeep. The SLC39A13 gene supports these messages by helping control where zinc is kept inside cells.
What is a variant?
A genetic variant is a small difference in the DNA sequence within a gene. These differences are common and help shape normal human diversity, such as variation in appearance, metabolism, or the way the body responds to environmental influences. Many variants do not have any noticeable effect and simply reflect natural genetic variation. In some cases, though, 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 SLC39A13 gene can weaken the ZIP13 transport protein by changing its shape, lowering its stability, or causing it to be cleared away too early, which disrupts zinc movement inside cells and related connective tissue signals. This pattern is seen in SLC39A13 gene variants linked to spondylodysplastic Ehlers-Danlos syndrome: milder changes may leave some activity, while more severe variants can lead to little or no function. This can influence how early features appear and how noticeable they are.
How variants are linked to conditions
Pathogenic variants in the SLC39A13 gene cause a rare inherited form of Ehlers-Danlos syndrome called spondylodysplastic Ehlers-Danlos syndrome. This SLC39A13 gene condition is linked to short stature, joints that move beyond the usual range, soft or stretchy skin, easy bruising, and changes in the spine. It is a confirmed genetic diagnosis rather than a small risk signal for a common disease.
A variant is not necessarily a diagnosis
Genetic variants are a routine feature of human biology and are widely seen in the general population. Most do not have a direct effect on health and instead reflect normal human diversity. For many genes, having a variant associated with a condition indicates a possible link rather than a certain diagnosis, especially when several genes and environmental influences are involved. In other cases, 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?
For SLC39A13, health effects are mainly linked to inheriting disease-causing changes in both copies of the gene, rather than to lifestyle or common outside factors. There is not enough evidence to say that specific habits lower risk, but gentle joint protection, injury prevention, and regular follow-up can help limit complications.
Inheritance of SLC39A13 variants
SLC39A13-related conditions are inherited in an autosomal recessive pattern. This means a person usually develops the condition only when they inherit two disease-causing variants in the SLC39A13 gene, one from each parent. Parents who each carry one variant are typically unaffected carriers, and with each pregnancy they have a 25% chance of having an affected child, a 50% chance of having a carrier child, and a 25% chance of having a child without either variant. This is the established SLC39A13 inheritance pattern for the best-known condition linked to this gene.
What does my SLC39A13 result mean for my family?
For families, a change in the SLC39A13 gene is usually linked to a recessive condition, which means close relatives may also carry the same gene change without having symptoms. Brothers and sisters could be affected or could be carriers, and parents are usually carriers. The result can also matter for future children and for relatives planning a family.
Genetic information
Genetic testing
How you find out about variants
To find out whether you carry a variant in the SLC39A13 gene, clinicians use genetic testing on a blood or saliva sample. Genetic testing for SLC39A13 variants usually reads the gene's DNA code, often as part of a connective tissue panel or broader sequencing test. Results may help confirm a diagnosis and guide family testing.
When should I consider getting a genetic test?
Testing may be worth discussing if you or your child has very loose joints, soft or stretchy skin, easy bruising, and short stature, especially when these signs run in the family. Changes in the SLC39A13 gene can cause a rare inherited connective tissue condition, and testing can help confirm the cause and clarify chances for other family members.
A genetic result is only one part of your health story
A genetic result can provide useful insight, but how much it explains varies with the condition and the kind of variant involved. Over time, many factors, including lifestyle, environment, age, and medical history, influence how the body functions. In some conditions, particularly those shaped by many genes, genetic information offers context rather than certainty and makes the most sense when viewed alongside 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 put personal experiences into context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how people respond to medicines. This helps explain why the same treatment may work well for one person but less well for another, or why some people are more likely to have side effects. Small differences in genes can change how the body breaks down, moves, or responds to a drug, and this kind of variation is common.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences affect the way people respond to medications. It studies relationships between genes and drugs to help explain why treatments can work differently from one person to another. For many medicines, genes influence either how strongly a drug works or how the body processes it. This information can support treatment decisions that are more informed and more individualized. To explore this subject in more detail, you can learn more in the LearnHub.
Drugs influenced by the SLC39A13 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication choice or dose, so general questions about side effects, new symptoms, or how medicines may affect you are best discussed with your doctor.