The MYO1E gene helps specialized kidney cells keep the kidney’s filter strong, so important proteins stay in the blood instead of leaking into the urine. When this gene does not work properly, that filter can become leaky, which may lead to protein in the urine, swelling, and kidney conditions such as steroid resistant nephrotic syndrome or focal segmental glomerulosclerosis. In medicine, this gene is important because it supports podocytes, the cells that form a key part of the kidney’s filtering barrier.
What is a gene?
Genes are sections of DNA that carry instructions your cells use to make molecules or regulate what happens in the body. Some genes provide the directions for building proteins, which do much of the cell’s work. Others mostly guide when certain activities happen, where they take place, and how active they are. In combination, genes affect how the body grows and works, and they may influence how you respond to food, stress, and medicines. For a deeper look at this topic, visit the LearnHub.
Overview
MYO1EGene function
What if the gene works
The MYO1E gene helps cells coordinate their outer surface with their inner scaffolding. This is especially important in kidney filtering cells, where it supports the filter barrier and helps keep protein from leaking into urine.
Risk
What if the gene does not work
More disruptive variants in the MYO1E gene can cause an inherited kidney condition, often steroid-resistant nephrotic syndrome with kidney filter scarring. Milder variants may have less effect, influencing when protein in the urine appears and how kidney function is affected.
Treatment
What does that mean for your treatment
No MYO1E-specific treatment or drug selection approach is currently established in clinical guidelines. Treatment is guided by the kidney condition itself and how it responds to standard care, rather than by a pathogenic variant in the MYO1E gene alone. The MYO1E gene is being studied in podocyte injury, a change in the kidney’s filtering cells, but this has not yet changed routine treatment.
Conditions associated with MYO1E
Gene function
What if the gene works
Inside your cells, the MYO1E gene helps coordinate small movements at the cell surface. It links the cell membrane to actin, a network of support fibers that helps cells keep their shape. This is part of how the MYO1E gene helps cells change shape and bring substances in from their surface.
One of its main roles is to connect the cell membrane to actin, a set of internal support fibers. This gives the cell surface both strength and flexibility.
The protein made from the MYO1E gene uses energy to create small pulling forces where the membrane meets actin. These forces help surface tasks happen in a smooth, controlled way.
The MYO1E gene also supports endocytosis (the way cells bring substances in from their surface). It helps the membrane and support fibers work together as tiny pockets form and move inward.
By linking force to the cell edge, this gene helps some cells spread, grip, and shift position. This supports steady movement and normal contact with nearby surfaces.
What is a variant?
A genetic variant is a minor 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 are simply part of natural genetic variation. In some situations, though, a variant may change 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 MYO1E gene can reduce how much myosin 1E is made or alter its shape, which may weaken its movement along actin fibers and its attachment to cell membranes. This explains how MYO1E gene variants affect kidney filter cells called podocytes, whose internal support structure can become less stable. Milder variants may leave some protein activity, while more disruptive loss of function variants often have a larger effect and can be linked to earlier or more marked MYO1E related kidney disease.
How variants are linked to conditions
Pathogenic variants in the MYO1E gene are linked mainly to a rare inherited kidney condition called focal segmental glomerulosclerosis, often showing up as nephrotic syndrome that does not respond well to steroid treatment. In practice, MYO1E gene variants and kidney disease are most often connected when a child or young adult has heavy protein loss in the urine, swelling, and worsening kidney function. These variants usually involve both copies of the gene, which can confirm the diagnosis.
A variant is not necessarily a diagnosis
Gene variants are a normal feature of human biology and are widely seen in the general population. Most do not have a direct effect on health and simply reflect natural human diversity. For many genes, carrying a variant associated with a condition indicates a possible link rather than a definite diagnosis, especially when several genes and environmental factors are involved. In some situations, 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 risk related to the MYO1E gene. For many living with a harmful MYO1E change, risk is mostly linked to the genetic change itself, so a doctor or genetic counselor can help explain what that means for you or your family.
Inheritance of MYO1E variants
For MYO1E-related kidney conditions, the inheritance of MYO1E gene variants is autosomal recessive. This means a child usually inherits one variant in the MYO1E gene from each parent, and the parents are often healthy carriers. When both parents carry a disease-causing variant, each pregnancy has a 25% chance of being affected, a 50% chance of resulting in a carrier child, and a 25% chance of resulting in a child with no inherited variant. Because the MYO1E gene is on an autosome, this pattern is the same for sons and daughters.
What does my MYO1E result mean for my family?
For families with a disease-causing MYO1E result, the pattern is usually recessive, which often means parents are healthy carriers and brothers or sisters could also be affected or be carriers. Other close relatives, such as siblings of the parents, may also carry the same gene change. Family planning questions can come up because two carriers can pass the condition on to a child together.
Genetic information
Genetic testing
How you find out about variants
To find out whether you carry a variant in the MYO1E gene, MYO1E genetic testing examines DNA from a blood sample or saliva sample. A lab usually reads the gene directly or includes it in a larger kidney gene panel, then compares the sequence with the usual DNA pattern to identify variants.
When should I consider getting a genetic test?
Consider MYO1E testing if you or your child has a kidney condition with heavy protein loss in the urine, especially when it starts in childhood, does not improve with steroid treatment, or runs in the family. It can help show whether an inherited MYO1E-related kidney condition is the cause.
A genetic result is only one part of your health story
A genetic result can be helpful, but how much it reveals varies by the condition and the type of variant involved. Age, lifestyle, environment, and medical history are among the many factors that influence how the body works over time. For some conditions, especially those affected 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 can give a clear answer. In areas such as medication response, genetic results can also help put individual experiences in perspective.
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 a drug, moves it through the body, or responds to it at the target tissue. This is a common reason why the same treatment may work well for one person, work less well for another, or cause more side effects in someone else.
What is Pharmacogenetics?
Pharmacogenetics examines how differences in a person’s genes affect the way they respond to medicines. It studies gene-drug patterns to help explain why the same treatment can work differently in different people. With many medicines, genes influence how strong a drug’s effects are or how the body handles it. This information can support more informed, personalized treatment decisions. More detailed information on this topic is available in the LearnHub.
Drugs influenced by the MYO1E gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication choice or response. If you have questions about medicines, side effects, or your health more generally, it is best to talk with your doctor or pharmacist.