The ATP6V1E1 gene helps cells keep tiny internal compartments acidic so they can process proteins and build healthy tissues. When it does not work properly, the body may have trouble with connective tissue and development, and some people are born with loose or wrinkled skin, short stature, delayed development, and hearing or vision problems. Pathogenic variants in both copies of the ATP6V1E1 gene can cause a rare inherited condition called cutis laxa.
What is a gene?
Genes are stretches of DNA that carry instructions your cells use to make molecules or regulate activities in the body. Some genes provide the directions for producing proteins, the working parts of cells. Others mainly help determine when certain processes happen, where they take place, and how strongly they operate. 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 deeper look at this topic, more information is available in the LearnHub.
Overview
ATP6V1E1Gene function
What if the gene works
The ATP6V1E1 gene helps build a cell pump that controls acidity inside compartments such as lysosomes. This helps cells recycle materials, process proteins, and support normal growth.
Risk
What if the gene does not work
Variants in both copies of the ATP6V1E1 gene can cause cutis laxa, with loose skin, delayed development, poor growth, and sometimes hearing or bone problems. Milder and more severe variants can change when features appear and how marked they are.
Treatment
What does that mean for your treatment
No treatment or management approach is currently established specifically for pathogenic variants in the ATP6V1E1 gene. Care is symptom based rather than guided by a gene specific drug choice.
Conditions associated with ATP6V1E1
Gene function
What if the gene works
Inside your cells, the ATP6V1E1 gene helps power a pump that moves protons, which are tiny charged particles. This keeps spaces such as lysosomes, endosomes, and the Golgi at the right acidity. Seeing how the ATP6V1E1 gene works helps explain how cells recycle materials, process proteins, and move cargo in an orderly way.
The ATP6V1E1 gene helps build and run the V ATPase pump, which moves protons into cell compartments. This creates the acidic conditions many parts of the cell need for routine work.
Proper acidity helps lysosomes, the cell’s recycling centers, break down worn out materials. It also supports the cleanup and reuse of building blocks your cells need every day.
The ATP6V1E1 gene supports the acidic environment used to sort and prepare proteins inside the Golgi and related compartments. This helps proteins reach the right place in a usable form.
Endosomes use controlled acidity to release, sort, and move incoming cell cargo. By supporting this process, the ATP6V1E1 gene helps cells manage nutrients, signals, and other materials.
What is a variant?
A genetic variant is a small alteration in the DNA sequence of a gene. These changes are common and are part of normal human diversity, including differences in appearance, metabolism, or how the body responds to environmental influences. Many variants do not cause 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 ATP6V1E1 gene often weaken how this cell pump subunit folds, stays stable, or joins the larger pump. Milder variants may leave some activity, while more severe loss of function variants can greatly reduce acidification inside cell compartments, disrupting protein sorting and glycosylation (the sugar tags cells add to proteins). In ATP6V1E1-related cutis laxa, this range in functional impact can influence how early features appear and how marked they are.
How variants are linked to conditions
Pathogenic variants in both copies of the ATP6V1E1 gene cause a rare inherited form of cutis laxa. In reports of ATP6V1E1 gene variants linked to cutis laxa, people often have loose or wrinkled skin from infancy, along with developmental delay and growth differences. Hearing changes and other body systems may also be involved. When these variants are found in someone with matching features, they can confirm the diagnosis.
A variant is not necessarily a diagnosis
Genetic variants are a routine part of human biology and are common across the general population. Most do not have a direct effect on health and simply represent natural human variation. For many genes, carrying a variant associated with a condition indicates a possible link rather than a definite diagnosis, especially when multiple genes and environmental factors are involved. In some 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?
There is not yet broadly confirmed evidence on specific factors that increase or reduce health risk related to the ATP6V1E1 gene. In families with a known ATP6V1E1-related condition, risk is mainly shaped by the gene change itself and whether a child inherits altered copies from both parents.
Inheritance of ATP6V1E1 variants
ATP6V1E1-related conditions are inherited in an autosomal recessive pattern. This means a child usually inherits one ATP6V1E1 gene variant from each parent, and the parents are often healthy carriers. When both parents carry a variant, each pregnancy has a 25% chance of resulting in a child with the condition, a 50% chance of a child being a carrier, and a 25% chance of a child inheriting neither variant. In practical terms, how ATP6V1E1 gene variants are inherited usually explains why the condition can appear in one child even when there is no earlier family history.
What does my ATP6V1E1 result mean for my family?
For ATP6V1E1-related conditions, the family pattern is usually recessive, which often means both parents are healthy carriers. Brothers and sisters may also be affected or may be carriers, and other relatives can sometimes carry the same change without knowing it. Because of this, family members may want to learn whether carrier testing is relevant for them, especially when planning a pregnancy.
Genetic information
Genetic testing
How you find out about variants
Genetic testing for ATP6V1E1 variants usually analyzes DNA from a blood sample, saliva sample, or cheek swab. A lab reads the ATP6V1E1 gene and checks its sequence for changes, then compares any variant found with established medical evidence to help clarify whether it is linked to a genetic condition.
When should I consider getting a genetic test?
Consider testing for changes in the ATP6V1E1 gene if a child has signs of an inherited condition with loose or sagging skin, growth or developmental concerns, and problems affecting more than one part of the body, or if there is a known ATP6V1E1 change in the family. Testing can help confirm the cause and clarify the chance of it happening again in future pregnancies.
A genetic result is only one part of your health story
Genetic results can provide useful insight, but how much they reveal depends on the condition and the specific type of variant. Over time, many factors shape how the body functions, including lifestyle, environment, age, and medical history. For 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 offer 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 responds to it at its target. This helps explain why the same medication may work well for one person, have less effect in another, or cause more side effects in someone who is more sensitive to it.
What is Pharmacogenetics?
Pharmacogenetics looks at how genetic differences can shape a person’s response to medication. It studies 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 affect both how strongly a drug works and how the body handles it. This information can support treatment decisions that are better informed and more individualized. You can read more about this topic in the LearnHub.
Drugs influenced by the ATP6V1E1 gene
When should I seek medical advice?
There isn't yet a broadly confirmed role for this gene in guiding medication response. If you have concerns about side effects, how well a treatment is working, or other health changes, talk with your doctor.