The DCLK1 gene helps cells, especially developing nerve cells, organize their inner support system and send signals needed for growth and movement. This gene plays an important role in how the brain forms and how some tissues renew themselves. If you carry a variant that greatly disrupts its function, cell movement and brain development may be affected. Depending on the variant, this can be linked with developmental differences, seizures, or problems with coordination.
What is a gene?
Genes are stretches of DNA that hold instructions your cells use to make molecules or direct processes in the body. Some genes carry the code for proteins, the parts of cells that do much of the work. Others mostly regulate when specific processes happen, where they occur, and how strongly they run. Taken together, genes affect how the body develops and functions, and they can also shape how you respond to food, stress, and medications. More on this topic is available in the LearnHub.
Overview
DCLK1Gene function
What if the gene works
The DCLK1 gene helps organize a cell’s internal scaffolding, especially in nerve cells. It supports brain development and helps certain cells in the gut lining work normally.
Risk
What if the gene does not work
More disruptive variants in the DCLK1 gene can affect brain development and may lead to developmental delay, low muscle tone, movement differences, and seizures. Milder variants may cause fewer features or later, less pronounced symptoms.
Treatment
What does that mean for your treatment
No DCLK1-specific treatment or management approach is currently established in clinical guidelines for people with pathogenic variants in the DCLK1 gene. The DCLK1 gene is being studied as a biomarker and possible drug target in several cancers, but this has not yet changed standard treatment choices.
Gene function
What if the gene works
The DCLK1 gene helps cells organize their internal support system and send growth-related signals. Its work is especially important in nerve cells, where shape, movement, and connections depend on a well-ordered inner framework. Understanding how the DCLK1 gene works makes its day-to-day role easier to picture.
Inside cells, the DCLK1 gene helps guide microtubules, which are tiny tubes that act like support beams and transport tracks. This helps cells keep their shape and move materials to the right place.
In nerve cells, the DCLK1 gene supports the growth and shaping of long extensions and branches. This is part of how the DCLK1 gene helps nerve cells grow, connect, and maintain an organized structure.
The protein made from the DCLK1 gene is a kinase, which means it adds small chemical tags to other proteins to adjust their activity. These signals help coordinate cell structure with everyday growth and maintenance.
What is a variant?
A genetic variant is a small difference in the DNA sequence of a gene. These changes are common and form 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 reflect natural genetic variation. In some cases, though, a variant can change how a gene functions more substantially and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the DCLK1 gene can change the shape, stability, or activity of its protein, especially in regions needed to attach to the cell’s internal support fibers or carry out enzyme signaling. In descriptions of how DCLK1 gene variants affect protein function, the main pattern is a spectrum: some missense variants cause a partial loss of activity, while more disruptive truncating variants can sharply reduce or abolish the protein. This can lead to greater disruption of cell structure and signaling.
How variants are linked to conditions
DCLK1 does not yet have a broadly confirmed link to a specific health condition, though research on how variants of the DCLK1 gene are linked to conditions is still developing. Anyone with a confirmed DCLK1-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 across the general population and are a normal feature of human biology. Most do not have a direct effect on health and simply reflect natural human diversity. For many genes, carrying a variant associated with a condition suggests a possible link rather than a definite diagnosis, especially when several genes and environmental factors also play a part. In some situations, though, a single well understood 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 DCLK1 gene. If you have concerns about your personal or family risk, a doctor or genetic counselor can help put genetic findings in context.
Inheritance of DCLK1 variants
For inheritance of the DCLK1 gene variants, there is not yet a broadly confirmed Mendelian pattern tied to a specific well-established DCLK1-related condition. Research is still developing, so DCLK1 changes are not usually described with a clear autosomal dominant, autosomal recessive, or X-linked pattern in routine patient genetics. The DCLK1 gene is located on chromosome 13, which is an autosome, so each person inherits one copy from each parent.
What does my DCLK1 result mean for my family?
There isn't yet a broadly confirmed inheritance pattern tied to a specific condition for the DCLK1 gene, though this understanding can change as research develops. If you have a specific DCLK1 result and questions about what it could mean for your family, a doctor or genetic counselor can help explain it in the context of your family history.
Genetic information
Genetic testing
How you find out about variants
DCLK1 genetic testing looks for changes in the DCLK1 gene using a blood or saliva sample. A lab reads the DNA sequence and compares it with the usual sequence to see whether a variant is present. Results may show a benign variant, a variant linked to disease, or an unclear finding.
When should I consider getting a genetic test?
There isn't yet a broadly established, DCLK1-specific reason for genetic testing in routine care. Testing decisions are usually based on your symptoms and family history, often as part of a broader genetics evaluation with a doctor or genetic counselor.
A genetic result is only one part of your health story
A genetic finding can provide useful insight, but how much it explains depends on the condition and on the type of variant involved. Over time, the way the body works is 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 best understood 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 in context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how people respond to medicines. Two people can take the same treatment and have different results because their bodies may absorb, break down, or respond to the drug in different ways. These differences are common and can influence how well a medicine works or how likely someone is to notice side effects. Drug response also depends on other factors, including age, kidney and liver function, other medicines, and overall health.
What is Pharmacogenetics?
Pharmacogenetics looks at how genetic differences can shape the way a person responds to medication. It examines connections between genes and drugs to help explain why the same treatment may work differently from one person to another. For many medicines, genes can influence both how strongly a drug works and how the body processes it. This understanding can support treatment decisions that are better informed and more individualized. More detailed information about this topic is available in the LearnHub.
Drugs influenced by the DCLK1 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication choice or response, so general questions about symptoms, side effects, or treatment are best discussed with your doctor. Research on the DCLK1 gene has explored whether it may affect how some cancers respond to treatment, but this has not become part of routine medical care.