The NME7 gene helps cells build and position cilia, which are tiny hairlike structures that move fluid and help guide early body layout. This gene plays an important role in helping organs form in their usual places and in supporting normal fluid flow in the brain and airways. If you carry a harmful variant in the NME7 gene, organs may develop in unusual positions, and some people can have cilia related health problems such as breathing issues or extra fluid in the brain.
What is a gene?
Genes are stretches of DNA that give cells instructions for making molecules or managing processes in the body. Some genes provide the directions needed to make proteins, which are the working parts of cells. Others mainly regulate when certain processes happen, where they occur, and how active they are. Together, genes affect how the body develops and works, and they can influence how you respond to food, stress, or medications. To explore this topic in more depth, you can find more in the LearnHub.
Overview
NME7Gene function
What if the gene works
The NME7 gene helps cells build and organize cilia, the tiny hairlike structures that move fluid. This supports normal body patterning early in development and steady cell organization.
Risk
What if the gene does not work
If the NME7 gene does not work properly, it can disrupt the body’s left and right patterning, causing situs inversus or heterotaxy, sometimes with cilia problems. Milder or more severe variants may affect which features appear and when.
Treatment
What does that mean for your treatment
At present, no NME7-specific treatment or drug selection approach is established in clinical guidelines for people with a pathogenic or loss-of-function variant in the NME7 gene.
Conditions associated with NME7
Gene function
What if the gene works
Inside your cells, the NME7 gene helps organize tiny protein fibers that give structure and support movement. This is especially important when cells build cilia, the fine hairlike parts that help move fluid along surfaces such as the airways. Understanding how the NME7 gene supports cilia formation also helps make sense of its role in day to day cell organization.
NME7 helps start and arrange microtubules, the tiny tubes that act as internal tracks and support cell shape. It works with the γ-tubulin ring complex (a starter system for microtubules).
This gene supports the internal scaffold of cilia, which are fine hairlike structures on certain cells. That framework helps cilia form in an orderly way and supports coordinated movement.
NME7 helps organize the cell skeleton (the inner support framework that shapes the cell). This supports the placement of important structures and smooth traffic inside the cell.
What is a variant?
A genetic variant is a small difference in the DNA sequence of a gene. These changes are common and are part of 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, 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
Variants in the NME7 gene can change the protein’s shape, stability, or ability to interact with the cell machinery that helps organize microtubules and build cilia. In practical terms, how NME7 gene variants affect cell function often comes down to whether the change partly weakens the protein or leaves very little working protein at all. Milder variants may reduce NME7 activity, while more disruptive variants can more strongly impair cilia-related cell organization and movement.
How variants are linked to conditions
Among the conditions linked to variants in the NME7 gene, the clearest is situs inversus totalis, a rare inherited condition in which the heart and other organs develop in a mirror-image pattern. Some affected people also have primary ciliary dyskinesia, which can bring long lasting nose, sinus, chest, or fertility problems.
A variant is not necessarily a diagnosis
Variants in genes are a routine feature of human biology and are widely found across the general population. Most do not directly affect health and instead reflect normal human diversity. For many genes, having a variant associated with a condition points to a possible link rather than a clear diagnosis, particularly when more than one gene and environmental influences play a role. In certain situations, though, 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 isn't yet broadly confirmed evidence on specific factors that increase or reduce health risk related to the NME7 gene. For many living with an NME7 change, risk is mainly tied to the exact variant and the condition involved rather than to lifestyle or everyday exposures.
Inheritance of NME7 variants
NME7-related conditions are inherited in an autosomal recessive pattern. This means a person usually needs to inherit two disease-causing variants in the NME7 gene, one from each parent, to be affected. Parents who each carry one NME7 variant are often unaffected carriers, and with each pregnancy they have a 25% chance of having an affected child, a 50% chance of having a carrier child, and a 25% chance of having a child without either variant. In practical terms, how NME7 variants are inherited is the same for sons and daughters.
What does my NME7 result mean for my family?
For families with a disease-causing change in the NME7 gene, the pattern is typically recessive, which means close relatives may also be carriers even if they do not have symptoms. Brothers and sisters could also be affected or carry the same gene change, while parents are often healthy carriers. This can matter for future pregnancies and for relatives who want a clearer picture of their own chances of passing it on.
Genetic information
Genetic testing
How you find out about variants
Genetic testing for NME7 variants usually starts with a blood or saliva sample. A lab reads the DNA in the NME7 gene and checks for changes by comparing it with a usual reference sequence. The report may identify a variant and explain whether it is known to affect health, uncertain, or not linked to disease.
When should I consider getting a genetic test?
Consider testing for NME7 if you or your child has organs that developed on the opposite side or in an unusual arrangement, sometimes along with heart differences or fertility problems. Testing may also be useful when these findings run in the family or a doctor suspects a rare inherited condition affecting early body layout.
A genetic result is only one part of your health story
Genetic results can be informative, yet how much they explain 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 works over time. For some conditions, especially those influenced by many genes, genetic information offers context rather than certainty and is most useful when considered alongside other parts of care. In other situations, a genetic result can give a clear answer. In areas like medication response, genetic results may 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. That helps explain why the same treatment works well for one person, seems less effective for another, or causes more side effects in someone else.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences can affect a person’s response to medications. By looking at the relationship between genes and drugs, it helps explain why the same treatment may work differently from one person to another. For many medicines, genes can shape how strongly a drug works or how the body handles it. This information can support more informed and more individualized treatment decisions. To explore this subject in greater detail, you can learn more in the LearnHub.
Drugs influenced by the NME7 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in predicting how medicines will work, so any concerns about side effects, poor treatment response, or medication changes are best discussed with your doctor or pharmacist.
History
The NME7 gene entered the scientific literature after researchers had already identified other members of the NME gene family and were mapping related genes in humans. Early work placed NME7 within this broader family and helped distinguish it from the better known NME genes studied in cancer research. Building on this early work, scientists linked the NME7 gene to structures involved in left right body patterning and later connected rare inherited variants to conditions such as situs inversus, where internal organs develop in a reversed arrangement. As genetic sequencing became more widely used, reports of people with NME7 variants gave a clearer picture of its medical relevance. The way this gene was viewed has shifted over time, from a newly cataloged family member to a gene with a recognized role in human developmental conditions.