Your body uses the CCDC28B gene to help build and control cilia, the tiny hair-like structures on cells that help sense signals and move fluid. If this gene does not work properly, cilia may be shorter or less effective, which can disrupt cell signaling. This gene plays an important role in conditions linked to cilia problems, and some variants may modify features of Bardet-Biedl syndrome. Many variants are harmless, while a few may change how the gene works.
What is a gene?
A gene is a piece of DNA that gives cells instructions for making molecules or regulating processes in the body. Some genes provide the information needed to make proteins, which are the working parts of cells. Other genes mainly control when certain processes happen, where they take place, and how active they are. Taken together, genes affect how the body develops and works, and they can influence how you respond to food, stress, or medications. For a more in depth look at this topic, you can find more in the LearnHub.
Overview
CCDC28BGene function
What if the gene works
The CCDC28B gene helps cells build and maintain cilia, the tiny hairlike structures that sense signals and move fluid. This supports normal signaling and the work of tissues such as the eyes, kidneys, and airways.
Risk
What if the gene does not work
Changes in the CCDC28B gene can range from milder to more severe variants. When the CCDC28B gene works less well, cells may build or maintain cilia less effectively, which can weaken cilia signaling and related cell communication.
Treatment
What does that mean for your treatment
No treatment or drug choice is currently guided by pathogenic variants in the CCDC28B gene. Research has mainly explored the CCDC28B gene as a possible modifier of ciliopathy features, not as a target for established therapy.
Conditions associated with CCDC28B
Gene function
What if the gene works
Many cells use the CCDC28B gene to help build and manage cilia, tiny hairlike structures on the cell surface. These structures act like small antennae and, in some tissues, help move fluid along. Understanding CCDC28B gene function helps explain how cells stay organized and respond to signals in everyday tissues.
The CCDC28B gene helps cells form cilia on their surface. These tiny structures support sensing and, in some tissues, help move fluid.
Its protein helps control cilia length so these structures stay the right size for normal work. Balanced cilia size supports steady cell signaling and organized tissue function.
CCDC28B activity is linked to the basal body, the anchor that helps place a cilium on the cell surface. This supports correct cilia positioning and orderly cell organization.
What is a variant?
A genetic variant is a slight difference in the DNA sequence within a gene. These differences are common and are part of 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 strongly and can contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the CCDC28B gene can alter the shape, stability, or amount of CCDC28B protein a cell makes. How CCDC28B gene variants affect protein function often depends on the DNA change: some missense variants may only weaken protein binding or movement to the base of cilia, while truncating or splice variants can greatly reduce function or stop production. This spectrum from milder to more severe variants can disrupt cell processes linked to cilia to different degrees.
How variants are linked to conditions
The CCDC28B gene does not yet have a broadly confirmed link to a specific health condition, though research on CCDC28B gene variants and health conditions is still developing. Anyone with a confirmed CCDC28B-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 common and are a normal part of human biology. Most do not have a direct impact on health and simply reflect natural human diversity. In many genes, carrying a variant associated with a condition points to a possible link rather than a definite diagnosis, especially when several genes and environmental factors contribute. In some situations, 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?
There is not yet broadly confirmed evidence on specific factors that increase or reduce health risk related to the CCDC28B gene. If a change in CCDC28B is found on testing, a doctor or genetic counselor can help explain what it may mean in the context of your personal and family history.
Inheritance of CCDC28B variants
There is not yet a broadly confirmed disease specific CCDC28B inheritance pattern, so CCDC28B gene inheritance is still being clarified as research develops. The CCDC28B gene is on chromosome 1, which is an autosome, so you inherit one copy from your mother and one copy from your father. In general, a variant in this gene could be passed to children from either parent, but the exact chance of it leading to a specific health condition has not been firmly established.
What does my CCDC28B result mean for my family?
There isn't yet a broadly confirmed inheritance pattern tied to a specific condition for CCDC28B, though this understanding can change as research develops. If you have a specific CCDC28B 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
Finding out about variants in the CCDC28B gene usually involves CCDC28B genetic testing using a blood or saliva sample. A lab reads the gene's DNA sequence, often as part of a multigene panel, exome, or genome test, and compares it with a reference sequence. Results may show a variant, no reportable change, or a variant of uncertain significance.
When should I consider getting a genetic test?
There is not yet a broadly established reason to order genetic testing just for the CCDC28B gene. Decisions about testing are usually based on symptoms, family history, and whether a doctor or genetic counselor thinks a larger gene panel could help explain a suspected inherited condition.
A genetic result is only one part of your health story
Genetic results can provide useful insight, but what they can tell you varies depending on the condition and the kind of variant involved. Over time, many factors, including lifestyle, environment, age, and medical history, influence how the body functions. For some conditions, particularly those shaped by many genes, genetic information offers context rather than certainty and makes the most sense when considered with other parts of care. In other situations, a genetic result can give a clear answer. In areas like medication response, genetic results can help put a person’s experiences in context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can influence how a person responds to medicines. Small differences in DNA can change how the body absorbs, breaks down, or responds to a drug, so the same treatment may work well for one person but less well for another. These differences are common and can affect how much benefit someone gets or how sensitive they are to side effects.
What is Pharmacogenetics?
Pharmacogenetics explores how genetic differences can shape a person’s response to medications. By examining links between genes and drugs, it helps clarify why the same treatment may work differently from one person to another. For many medicines, genes affect either how strongly a drug works or how the body processes it. This understanding can support treatment decisions that are more informed and more individualized. To explore this topic further, more information is available in the LearnHub.
Drugs influenced by the CCDC28B gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in medicine response, so any questions about medicines, side effects, or changes in your health are best discussed with your doctor.