The TMEM143 gene gives cells instructions for a protein that sits in cell membranes and helps them work normally. If this gene does not work as expected, the affected cells may not function properly, which can contribute to inherited health problems in some people. Variants in the TMEM143 gene are usually interpreted alongside a person’s symptoms and family history because their effects can vary.
What is a gene?
Genes are stretches of DNA that carry instructions your cells use to make molecules or regulate processes in the body. Some genes provide the directions for producing proteins, which are the working parts of cells. Others mainly control when certain processes happen, where they occur, and how strongly they operate. Taken together, genes affect how the body develops and functions, and they can influence how you respond to food, stress, or medications. For a closer look at this topic, you can find more in the LearnHub.
Overview
TMEM143Gene function
What if the gene works
The TMEM143 gene helps make a protein embedded in cell membranes. This protein appears to support normal cell activity.
Risk
What if the gene does not work
Changes in the TMEM143 gene can reduce the amount of TMEM143 protein made or alter how it works in cell membranes. Milder variants may leave some function intact, while more severe variants can disrupt the protein more strongly.
Treatment
What does that mean for your treatment
At present, no TMEM143-specific treatment or drug selection approach is established for people with a pathogenic or loss-of-function variant in the TMEM143 gene.
Gene function
What if the gene works
TMEM143 supports routine cell work at membranes, where cells organize traffic and respond to signals. Understanding how the TMEM143 gene works in the body helps explain how cells keep their internal spaces orderly during everyday activity.
TMEM143 makes a protein that sits in a cell membrane. This membrane placement supports orderly activity between different parts of the cell and helps routine cell processes run smoothly.
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, including variation in appearance, metabolism, and the way the body reacts to environmental influences. Many variants do not have any noticeable effect and are simply part of natural genetic variation. Sometimes, though, a variant changes how a gene works more significantly and can contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Many TMEM143 gene variants are thought to change the shape, stability, or cell location of its membrane protein, which can weaken how the protein works inside the cell. Milder variants may leave some protein function intact, while more severe variants can markedly reduce protein production or cause the protein to break down early. In practice, TMEM143 gene variants often influence function by altering protein folding, membrane insertion, or stability.
How variants are linked to conditions
Variants in the TMEM143 gene do not yet have a broadly confirmed link to a specific health condition, though this can change as research develops. For people reading about TMEM143 gene variants and health conditions, any confirmed TMEM143-related finding is best interpreted with a doctor or genetic counselor rather than general information alone.
A variant is not necessarily a diagnosis
Genetic variants are a usual feature of human biology and are widely found across the general population. Most do not directly affect health and simply contribute to normal human variation. For many genes, a variant associated with a condition points to a potential link rather than a certain diagnosis, particularly when several genes and environmental influences play a role. In other situations, one well-defined variant in a particular gene is enough to establish 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 TMEM143 gene. Anyone concerned about their personal or family risk can talk with a doctor or genetic counselor for advice based on their own history.
Inheritance of TMEM143 variants
There is not yet a broadly confirmed TMEM143 inheritance pattern tied to a specific human condition, so TMEM143 inheritance is not described as a well-established autosomal dominant, autosomal recessive, or X-linked condition at this time. TMEM143 is located on an autosome rather than a sex chromosome, which means you inherit one copy of the TMEM143 gene from each parent.
What does my TMEM143 result mean for my family?
There is not yet a broadly confirmed inheritance pattern tied to a specific condition for TMEM143, although this can become clearer as research grows. If you have a TMEM143 result and want to understand what it could mean for your relatives, a doctor or genetic counselor can explain it in the context of your exact finding and family history.
Genetic information
Genetic testing
How you find out about variants
Genetic testing can look for changes in the TMEM143 gene using a blood sample, saliva, or a cheek swab. A lab reads the gene’s DNA code and compares it with the usual sequence, so TMEM143 genetic testing can show whether a variant is present and how it is classified.
When should I consider getting a genetic test?
There is not yet a broadly established, TMEM143-specific reason for genetic testing in routine care. Testing decisions are usually made with a doctor or genetic counselor based on your health history, family history, and whether a test that looks at many genes at once would be more useful.
A genetic result is only one part of your health story
A genetic finding can provide useful insight, but how much it reveals depends on the condition and the specific type of variant. How the body functions over time is also shaped by many factors, including lifestyle, environment, age, and medical history. For some conditions, especially those influenced by many genes, genetic information offers context rather than certainty and is most helpful when considered 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 place individual experiences into perspective.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how your body responds to medicines. Small differences in genes can change how a drug is absorbed, broken down, moved through the body, or how strongly it acts at its target. This helps explain why the same medication may work well for one person, seem weaker for another, or cause more side effects in someone else.
What is Pharmacogenetics?
Pharmacogenetics is the area of medicine that examines how genetic differences affect the way people respond to medications. It studies links between genes and drugs to help explain why the same treatment can work differently in different people. For many medicines, genes influence how powerfully a drug works or how the body handles it. This information can support more informed, more personalized treatment decisions. To explore this subject further, you can learn more in the LearnHub.
Drugs influenced by the TMEM143 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medicine choice or dose, so general medication questions or new symptoms are best discussed with your doctor.
History
TMEM143 entered the medical genetics literature during the era of large scale human gene mapping, when many previously uncharacterized genes were being cataloged from DNA sequence data. Initially understood only through visible traits, later recognized as tied to a specific gene, many genes in this group moved from database entries to subjects of more focused laboratory study. For TMEM143, the historical story is mainly one of steady annotation and refinement rather than a single dramatic discovery. As medical science evolved, so did understanding of this gene, with newer sequencing methods helping researchers define its place in the human genome more clearly.