The TMEM104 gene gives instructions for a protein that sits in the cell membrane and is especially active in nerve cells. The protein made by this gene helps your cells support normal nerve cell growth and communication. If the TMEM104 gene does not work properly, brain development and nerve signaling may be affected, which can contribute to developmental delay and other neurologic features.
What is a gene?
A gene is a stretch of DNA that carries instructions your cells use to make molecules or regulate processes in the body. Some genes provide the directions for producing proteins, which do much of the cell’s work. Others mainly help decide when and where certain activities happen, and how active they are. Taken together, genes affect how the body grows and works, and they can shape your response to food, stress, and medicines. For a deeper look at this topic, visit the LearnHub.
Overview
TMEM104Gene function
What if the gene works
The TMEM104 gene provides instructions for a protein in cell membranes. It is active in the nervous system and likely helps nerve cells develop and work normally.
Risk
What if the gene does not work
Variants in the TMEM104 gene can change how much TMEM104 protein cells make or how stable it is. Milder variants may leave some function, while more severe variants can result in little or no working protein.
Treatment
What does that mean for your treatment
No treatment or management approach specific to pathogenic variants in the TMEM104 gene is currently established in clinical guidelines.
Gene function
What if the gene works
In everyday cell life, TMEM104 supports work at cell membranes, the thin layers that help cells control their surroundings. Its protein is built to sit within a membrane rather than float freely inside the cell. That membrane placement is central to what the TMEM104 gene does in the body.
The TMEM104 gene makes a protein that sits in a cell membrane. When it works normally, the protein is positioned for steady cell communication and controlled movement of materials.
What is a variant?
A genetic variant is a small alteration in the DNA sequence of a gene. These changes are common and help make up 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. In some situations, however, a variant can change the function of a gene more strongly and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
How TMEM104 variants affect gene function depends on the type of DNA change. Milder variants in the TMEM104 gene may slightly alter the protein’s shape, stability, or movement within the cell, which can weaken how it interacts with other cell parts. More severe variants, such as changes that truncate the protein or disrupt RNA splicing (the step that helps cells make the protein), can greatly reduce protein levels or stop production altogether.
How variants are linked to conditions
Variants in the TMEM104 gene do not yet have a broadly confirmed link to a specific health condition, though research on the TMEM104 gene and disease is still developing. Anyone with a confirmed TMEM104-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 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 natural variation among people. For many genes, carrying a variant associated with a condition indicates a possible link rather than a definite diagnosis, especially when more than one gene and environmental factors play a role. In some situations, though, a single well understood 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 TMEM104 gene. Anyone with questions about personal risk or family history can talk with a doctor or genetic counselor.
Inheritance of TMEM104 variants
There is not yet a broadly confirmed Mendelian pattern for how TMEM104 gene variants are inherited in relation to a specific human condition, so TMEM104 gene inheritance is not described with a single well-established pattern such as autosomal dominant or autosomal recessive. TMEM104 is located on an autosome, which means you inherit one copy of the TMEM104 gene from your mother and one copy from your father. As research develops, the inheritance picture for TMEM104 may become clearer.
What does my TMEM104 result mean for my family?
There is not yet a broadly confirmed inheritance pattern tied to a specific health condition for TMEM104, though this can become clearer as research grows. If you have a TMEM104 result and want to understand what it could mean for close relatives, a doctor or genetic counselor can help explain it in the context of your family history and the exact result.
Genetic information
Genetic testing
How you find out about variants
TMEM104 genetic testing usually uses a blood or saliva sample. A lab reads the DNA in the TMEM104 gene to look for variants, and the report may show a benign change, a variant linked to a health condition, or a variant of uncertain significance.
When should I consider getting a genetic test?
There isn't yet a broadly established, TMEM104-specific clinical reason for testing. Decisions about genetic testing are best made with a doctor or genetic counselor, based on your symptoms and family history.
A genetic result is only one part of your health story
Genetic results can be informative, but how much they explain varies based on the condition and the kind of variant involved. Over time, many factors shape how the body works, including lifestyle, environment, age, and medical history. For some conditions, especially those influenced by many genes, genetic information provides context rather than certainty and is best understood together with other parts of care. In other situations, a genetic result can 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 breaks down a drug, moves it through the bloodstream, or responds to it at its target, so the same treatment may work better for one person than for another. This is a common reason people can differ in benefit or in how sensitive they are to side effects.
What is Pharmacogenetics?
Pharmacogenetics is the area of study focused on how genetic differences affect response to medications. It examines links between genes and drugs to help explain why the same treatment can work differently from one person to another. For many medicines, genes influence both how strongly a drug works and how the body processes it. This information can support more informed, personalized treatment decisions. To explore this subject in greater detail, you can learn more in the LearnHub.
Drugs influenced by the TMEM104 gene
When should I seek medical advice?
There is not yet strong, widely accepted evidence that changes in this gene affect how medicines work, so medication questions and any new or concerning symptoms are best discussed with your doctor.
History
TMEM104 entered the genetics literature during the period when researchers were systematically identifying and naming many human genes from large sequencing projects. It was named for its predicted role as a transmembrane protein, reflecting a common approach used at the time for newly cataloged genes whose full significance was still being worked out. In recent decades, knowledge has built on a long tradition of observing inherited traits. As medical science evolved, so did understanding of this gene. Rather than becoming a gene widely known in public health stories, TMEM104 has remained mainly part of specialist genetics research and genome annotation work, where scientists map, classify, and refine the human gene list.