The KLHL10 gene helps the testes make mature sperm, which supports male fertility. This gene plays an important role in helping developing sperm cells handle and remove proteins they no longer need. If the KLHL10 gene does not work properly, sperm production may be reduced, and some people may have male infertility with a very low sperm count or no sperm in the semen.
What is a gene?
Genes are sections of DNA that hold information cells use to make molecules or regulate processes in the body. Some genes provide the instructions for building proteins, the functional parts of cells. Others mostly control when certain processes take place, where they happen, and how strongly they operate. Together, genes influence how the body develops and works, and they can affect how you respond to food, stress, or medications. To explore this topic in more detail, you can learn more in the LearnHub.
Overview
KLHL10Gene function
What if the gene works
The KLHL10 gene helps the testes make mature sperm. Its protein helps clear unneeded proteins during sperm development, which supports fertility in people who produce sperm.
Risk
What if the gene does not work
People with variants in the KLHL10 gene may have male infertility, often with a low sperm count or no sperm in semen. Milder to more severe variants can affect sperm production to different degrees.
Treatment
What does that mean for your treatment
A pathogenic or loss-of-function variant in the KLHL10 gene does not currently point to a specific medicine or guideline-based treatment choice. Care usually focuses on the person’s fertility needs, and the KLHL10 gene is mainly being studied as a marker of some forms of male infertility rather than as a current drug target.
Conditions associated with KLHL10
Gene function
What if the gene works
In the testes, the KLHL10 gene is most active while sperm cells are being made. It helps with protein cleanup and timing during the later stages of sperm development. This steady housekeeping supports the normal maturation of sperm cells.
The KLHL10 gene helps label selected proteins so cells can recycle them when they are no longer needed. This supports clean, well timed protein turnover during sperm production.
A key job of the KLHL10 gene is helping sperm cells mature during the later stages of development. It supports the cell changes that prepare sperm for their final form.
By controlling when certain proteins are cleared away, the KLHL10 gene helps developing sperm cells move through their steps in an orderly sequence. This careful timing supports steady sperm formation in the testes.
What is a variant?
A genetic variant is a small difference in the DNA sequence of a gene. These differences are common and help shape normal human diversity, including variation in appearance, metabolism, and how the body responds to environmental influences. Many have no noticeable effect and are simply part of natural genetic variation. In some cases, though, a variant changes how a gene works more substantially and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the KLHL10 gene can change the protein’s shape, stability, or its ability to connect with partner proteins in developing sperm cells. In practical terms, how KLHL10 gene variants affect function often comes down to weaker protein binding or faster protein breakdown inside the cell. Milder variants may leave some activity in place, while more severe variants can markedly reduce activity or create a shortened protein that works poorly. This range can influence how strongly cell level sperm production pathways are disrupted.
How variants are linked to conditions
Variants in the KLHL10 gene do not yet have a broadly confirmed link to a specific health condition, and KLHL10 gene disease associations are still being clarified as research develops. Anyone with a confirmed KLHL10-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 common across the general population and are a normal feature of human biology. Most do not directly affect health and simply reflect natural human diversity. For many genes, having a variant associated with a condition points to a possible link rather than a definitive diagnosis, particularly when several genes and environmental influences play a role. Still, in some situations, one 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 KLHL10 gene. Changes in this gene have mainly been linked to some cases of male infertility, and personal risk can still vary based on many other genes, overall health, and reproductive factors.
Inheritance of KLHL10 variants
There is not yet a broadly confirmed, disease-specific Mendelian pattern for how KLHL10 gene variants are inherited, even though some changes in the KLHL10 gene have been reported in people with male infertility. Current evidence suggests that inheritance may vary by the specific variant and condition being studied, so a single pattern should not be presented as settled. The KLHL10 gene is located on chromosome 17, which is an autosome, so each person inherits one copy from each parent. This is the key point in understanding how KLHL10 gene variants are inherited.
What does my KLHL10 result mean for my family?
For KLHL10, the best-known family pattern is that a changed copy can run through a family and mainly affect male fertility. In practical terms, men in the family, such as brothers or sons, could also have low sperm counts or trouble fathering a child, while women may carry the change without fertility problems and still pass it on. Because of that, close relatives may also want to learn whether the same result is present in the family.
Genetic information
Genetic testing
How you find out about variants
KLHL10 genetic testing for male infertility uses a blood or saliva sample to look for variants in the KLHL10 gene that may help explain very low sperm counts or absent sperm. A lab reads the gene’s DNA code and classifies any changes by how likely they are to affect health or fertility.
When should I consider getting a genetic test?
There is not yet a broadly established KLHL10-specific reason for genetic testing in routine care. For men with unexplained infertility, especially very low sperm counts, testing choices are usually made with a fertility specialist or genetic counselor based on personal and family history.
A genetic result is only one part of your health story
A genetic result can provide useful insight, but what it can tell you varies based on the condition and the kind of variant involved. Over time, how the body works is also shaped by many other factors, including lifestyle, environment, age, and medical history. For some conditions, especially ones influenced by many genes, genetic information provides context rather than certainty and is most useful when viewed 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 DNA can change how the body absorbs, breaks down, or responds to a drug, so the same treatment may work well for one person but less well for another. This kind of variation is common and can influence both how much benefit a medicine provides and how sensitive someone is to side effects. Medication response also depends on other factors, including age, liver and kidney function, and other medicines a person takes.
What is Pharmacogenetics?
Pharmacogenetics examines how differences in genes can shape a person’s response to medicines. It focuses on gene-drug patterns to help explain why the same treatment may work differently in different people. With many medications, genes can influence either how strongly a drug works or how the body handles it. This information can support treatment choices that are both more informed and more individualized. More detailed information on this topic is available in the LearnHub.
Drugs influenced by the KLHL10 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 used. If you have side effects, new symptoms, or concerns about how a treatment is working, talk with your doctor.