The TMEM114 gene helps make a protein used mainly in the eye, where it supports the health and structure of certain cells needed for vision. If this gene does not work properly, eye development or visual function may be affected, and some people can have inherited vision problems. Understanding this gene can help make sense of why certain eye findings run in families.
What is a gene?
Genes are stretches of DNA that carry instructions cells use to make molecules or manage activities in the body. Some genes provide the directions for producing proteins, which do much of the cell’s work. Others are used mainly to regulate when certain processes happen, where they happen, and how active they are. As a group, genes affect how the body grows and works, and they can also influence your response to food, stress, and medicines. For a deeper look at this subject, more information is available in the LearnHub.
Overview
TMEM114Gene function
What if the gene works
The TMEM114 gene gives cells instructions for a membrane protein found mainly in the eye, especially the cornea. It appears to help corneal cells keep their normal shape and healthy function.
Risk
What if the gene does not work
Pathogenic variants in the TMEM114 gene cause inherited cataracts, leading to lens clouding and blurred vision from birth or childhood. Milder and more severe variants can influence when symptoms appear and how much vision is affected.
Treatment
What does that mean for your treatment
No treatment or drug choice is currently guided specifically by pathogenic variants in the TMEM114 gene.
Gene function
What if the gene works
In healthy cells, the TMEM114 gene is most active in parts of the eye that need very orderly cell layers to stay clear. It provides instructions for a protein that sits in cell membranes. This helps explain how the TMEM114 gene works in the front of the eye and the lens.
Its protein sits within the cell membrane rather than floating freely inside the cell. That position helps eye cells keep a stable outer surface and interact with neighboring cells.
The TMEM114 gene is especially active in the lens and other clear tissues at the front of the eye. When it is working properly, these cells stay well organized, which supports normal tissue clarity.
What is a variant?
A genetic variant is a small difference in the DNA sequence within a gene. These changes are common and help shape normal human diversity, including differences in appearance, metabolism, or how the body responds to environmental influences. Many variants do not have any noticeable effect and simply represent natural genetic variation. Sometimes, though, a variant can change how a gene functions more significantly and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
TMEM114 gene variants can affect protein function by changing the protein’s shape, stability, or ability to reach the right place in the cell membrane. Some changes are mild and may only reduce activity, while more severe variants can create a shortened or unstable protein that is quickly broken down. This helps explain how TMEM114 gene variants affect protein function across a spectrum, from partial loss of function to little or no function.
How variants are linked to conditions
TMEM114 does not yet have a broadly confirmed link to a specific health condition, although research on how TMEM114 variants are linked to conditions is still evolving. If you have a confirmed change in the TMEM114 gene, your doctor or genetic counselor can explain what that result means for you and your family in the context of your personal health history.
A variant is not necessarily a diagnosis
Variants in genes are a routine part of human biology and are widely seen in the general population. Most have no 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 definitive diagnosis, especially when more than one gene and environmental factors are involved. In some situations, however, a single well-characterized variant in a particular gene can be 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 TMEM114 gene. If TMEM114 is part of your test results, a doctor or genetic counselor can help explain what that finding may mean for your personal and family risk.
Inheritance of TMEM114 variants
There is not yet a broadly confirmed, disease-specific inheritance pattern for the TMEM114 gene, so how TMEM114 gene variants are inherited in relation to health conditions is still being clarified. TMEM114 is located on an autosome rather than a sex chromosome, which means you inherit one copy from your mother and one copy from your father.
What does my TMEM114 result mean for my family?
There isn't yet a broadly confirmed inheritance pattern tied to a specific condition for TMEM114, though this understanding can change as research develops. If you have a specific TMEM114 result and questions about what it could mean for your family, a doctor or genetic counselor can explain it in the context of your personal and family history.
Genetic information
Genetic testing
How you find out about variants
Genetic testing for TMEM114 variants usually uses a blood or saliva sample. A lab reads the DNA in the TMEM114 gene to look for changes, then compares any variant with established evidence to report whether it is present and whether it is known to be linked to a health condition.
When should I consider getting a genetic test?
There isn't yet a broadly established, TMEM114-specific clinical reason for testing. Decisions about genetic testing are best made with a doctor or genetic counselor based on symptoms, medical findings, and family history.
A genetic result is only one part of your health story
A genetic result can be quite informative, but how much it reveals varies by the condition and the specific type of variant. Many other factors, including lifestyle, environment, age, and medical history, also shape how the body functions over time. 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 may give a clear answer. In areas such as 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. This helps explain why the same treatment works well for one person, has little effect in another, or causes more side effects in someone else. These differences are common because inherited changes can influence how the body processes a drug and how sensitive the body is to its effects.
What is Pharmacogenetics?
Pharmacogenetics looks at how differences in a person’s genes can affect their response to medicines. It examines gene drug patterns to help explain why the same treatment may work differently from one person to another. With many medications, genes can influence how powerful a drug’s effect is or how the body handles it. This information can support treatment decisions that are more informed and more individualized. To explore this subject further, more information is available in the LearnHub.
Drugs influenced by the TMEM114 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 concerns about side effects, how well a treatment is working, or possible drug interactions, it is best to discuss them with your doctor or pharmacist.