The ESRRB gene helps control how certain cells develop and stay active, especially in the inner ear, where it supports normal hearing. If a person inherits nonworking copies of this gene from both parents, the sound sensing cells in the ear may not work as they should. This can lead to inherited hearing loss that is often present at birth or starts early in life. Most established health effects linked to the ESRRB gene involve hearing rather than problems across many body systems.
What is a gene?
A gene is a section of DNA that carries instructions your cells use to make molecules or direct processes in the body. Some genes provide the instructions for making proteins, which are the working parts of cells. Other genes mainly regulate when certain processes happen, where they happen, and how active they are. In combination, genes influence how the body develops and works, and they can also affect how you respond to food, stress, or medications. To go into this topic in more detail, you can find more in the LearnHub.
Overview
ESRRBGene function
What if the gene works
The ESRRB gene helps control when other genes turn on or off, especially in the inner ear. This supports normal hearing and early development.
Risk
What if the gene does not work
When the ESRRB gene does not work properly, it is best known for causing inherited hearing loss, often from birth or early childhood. Milder or more severe variants can affect when hearing changes appear and how much hearing is affected.
Treatment
What does that mean for your treatment
A pathogenic or loss of function variant in the ESRRB gene does not currently point to a treatment or medication choice specific to ESRRB. Care follows standard management for the condition. The ESRRB gene is also being studied as a possible biomarker and drug target in some cancers, but this has not led to routine treatment decisions.
Conditions associated with ESRRB
Gene function
What if the gene works
Your cells use the ESRRB gene to guide patterns of gene activity that keep important body systems working in an organized way. Its role is especially relevant during early development and in the inner ear, where precise control helps support hearing. It mainly works by directing when other genes are used.
ESRRB helps cells turn selected genes on or lower their activity at the right time. It binds to DNA and works with partner proteins so cells can follow a steady plan for daily function.
During early development, ESRRB supports gene programs that help some cells keep their identity or stay ready to mature further. This is part of how the ESRRB gene supports early development and stem cells.
In the inner ear, ESRRB helps maintain gene activity needed for the cells and fluid environment that allow sound signals to be processed normally. This steady support is an important part of what the ESRRB gene does in hearing.
What is a variant?
A genetic variant is a small change in the DNA sequence within a gene. These changes are common and help account for normal human diversity, such as differences in appearance, metabolism, or how the body responds to environmental influences. Many variants have no noticeable effect and are simply part of natural genetic variation. In some cases, though, a variant can affect 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 ESRRB gene can reduce how well its protein binds DNA, stays stable, or switches other genes on in inner ear cells. In how ESRRB gene variants affect protein function, milder changes may leave some activity, while more severe variants can shorten the protein or stop it from working almost completely. This functional range often influences whether hearing loss linked to the ESRRB gene appears milder or starts earlier.
How variants are linked to conditions
Pathogenic variants in both copies of the ESRRB gene cause a rare inherited form of hearing loss called DFNB35, which usually occurs without other body changes. ESRRB gene variants are linked to hearing loss that may be present at birth or noticed in early childhood, and the severity can vary from person to person. In this condition, parents often do not have hearing loss themselves because they each carry one variant.
A variant is not necessarily a diagnosis
Genetic variants are a usual part of human biology and are common across the general population. Most do not have a direct effect on health and simply reflect normal human variation. For many genes, carrying a variant associated with a condition suggests a possible link rather than a definite diagnosis, especially when several genes and environmental factors also play a part. 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?
For ESRRB, risk is mainly tied to inheriting disease-causing changes in both copies of the gene, so family history can matter. There is not broadly confirmed evidence that lifestyle or environmental factors meaningfully increase or reduce this genetic risk, and anyone worried about their personal risk should speak with a doctor or genetic counselor.
Inheritance of ESRRB variants
In families learning how ESRRB variants are inherited, the well-established pattern is autosomal recessive for ESRRB-related hearing loss. This means a child usually inherits one ESRRB variant from each parent, and the parents are often healthy carriers. When both parents carry an ESRRB variant, each pregnancy has a 25% chance of resulting in a child with the condition, a 50% chance of a child who is also a carrier, and a 25% chance of a child with neither variant. Sons and daughters are affected at the same rate.
What does my ESRRB result mean for my family?
For ESRRB, the best-known family pattern is a recessive form of inherited hearing loss. This usually means parents are healthy carriers, brothers and sisters may also have hearing loss or be carriers, and other close relatives may carry the same gene change. Children of someone with an ESRRB-related condition will usually be carriers unless the other parent also carries an ESRRB change, in which case a child could also be affected.
Genetic information
Genetic testing
How you find out about variants
Genetic testing for ESRRB variants usually uses a blood sample or cheek swab to read the DNA code and look for changes in the ESRRB gene. It is often done as part of an inherited hearing loss panel, and results may show whether a variant is present, whether two copies are affected, or whether no relevant change was found.
When should I consider getting a genetic test?
Genetic testing for the ESRRB gene may be worth considering if there is hearing loss that starts at birth or in childhood, especially when it runs in the family or no clear cause is found. Finding an ESRRB change can help explain the cause and clarify the chance of it happening again in future children.
A genetic result is only one part of your health story
Genetic findings can be informative, but how much they reveal varies depending on the condition and the type of variant involved. Over time, age, lifestyle, environment, and medical history all play a role in how the body functions. For some conditions, especially those influenced by many genes, genetic information offers context rather than certainty and is most useful when viewed alongside other parts of care. In other situations, a genetic result can give a clear answer. In areas like medication response, these results can also help make individual experiences easier to understand.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how your body handles medicines, so the same treatment may work differently from one person to another. Some people break down a drug more slowly or more quickly, while others are more or less sensitive to its effects. This is a common part of human biology and can influence how well a medication works or the chance of side effects.
What is Pharmacogenetics?
Pharmacogenetics examines how differences in genes can shape the way someone responds to a medicine. By looking at links between genes and drugs, it helps explain why the same treatment may work differently from one person to another. For many medicines, genes influence both how strongly a drug works and how the body handles it. This information can support treatment decisions that are more informed and more individualized. To learn more about this topic, visit the LearnHub.
Drugs influenced by the ESRRB gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication choices. If you have concerns about side effects, trouble getting the expected benefit from a medicine, or questions about your overall health, it is best to discuss them with your doctor.
History
Researchers identified the ESRRB gene in the 1990s while mapping a group of related genes involved in cell signaling and development. Early work placed it among the so called orphan receptors, a term used for genes first found before their natural body signals were clear. Interest in ESRRB grew further when studies linked variants in this gene to inherited hearing loss in some families. With each decade, genetic studies refined the picture. Later, ESRRB also became well known in laboratory research on stem cells, which gave it a lasting place in modern genetics.