The KIAA0586 gene helps cells build primary cilia, tiny hair-like structures that guide growth and body signaling during early development. If the gene does not work properly, these structures may not form as they should, which can lead to conditions such as Joubert syndrome or a skeletal condition with short ribs, extra fingers or toes, and breathing problems. Some people with harmful variants in the KIAA0586 gene may also have changes affecting brain development, vision, or the kidneys.
What is a gene?
Genes are stretches of DNA that hold instructions your cells use to make molecules or regulate processes in the body. Some genes carry the directions for producing proteins, the parts of cells that do much of the work. Others mainly control when certain processes occur, where they occur, and how strongly they run. As a group, genes affect how the body develops and functions, and they can also shape how you respond to food, stress, or medications. You can find more detailed information on this topic in the LearnHub.
Overview
KIAA0586Gene function
What if the gene works
The KIAA0586 gene helps cells build primary cilia, tiny structures that help cells receive signals. These signals guide early body development, including growth of the brain and skeleton.
Risk
What if the gene does not work
Different variants in the KIAA0586 gene can cause Joubert syndrome, often with low muscle tone, poor coordination, and developmental delay. Some people also have skeletal changes or extra fingers or toes, and effects can range from milder to more pronounced.
Treatment
What does that mean for your treatment
No KIAA0586-specific treatment or drug choice approach is currently established. The KIAA0586 gene is being studied in ciliopathy and developmental signaling research, but this has not yet led to a gene-directed therapy.
Conditions associated with KIAA0586
Gene function
What if the gene works
Many cells rely on a tiny, antenna-like structure called a cilium to sense and relay important signals. The KIAA0586 gene helps cells build this structure and place key parts in the right spot. That steady setup supports normal communication during growth and development.
The KIAA0586 gene helps cells build a cilium, a tiny antenna-like structure on the cell surface. It works near the cell’s organizing center so the cilium forms in the right place and grows in an orderly way.
This gene helps move and anchor important proteins at the base of the cilium. That careful setup lets the cell assemble the parts it needs before signals start to pass through.
Proper KIAA0586 activity supports cilium-based signals that guide growth and body patterning. This includes pathways such as Hedgehog, which helps cells follow location and timing cues during early development.
What is a variant?
A genetic variant is a small difference in the DNA sequence of a gene. These differences 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 cases, though, a variant can more substantially change how a gene works and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Many KIAA0586 gene variants reduce or disrupt the TALPID3 protein, which can impair primary cilia formation and weaken cell signaling. DNA changes can range from milder variants, which may leave some protein activity, to more severe variants that often create a shortened, unstable protein or prevent it from reaching the right place in the cell. This functional spectrum helps explain why KIAA0586 gene variants can be linked to differences in how early KIAA0586-related ciliopathy features appear and how marked they are.
How variants are linked to conditions
The most established condition linked to the KIAA0586 gene is Joubert syndrome, caused by disease-causing variants in both copies of the KIAA0586 gene. People with this diagnosis may have low muscle tone, delays in motor development, balance problems, unusual eye movements, breathing differences in infancy, and the characteristic brain scan pattern used to confirm Joubert syndrome.
A variant is not necessarily a diagnosis
Variants in genes are a normal and common part of being human. Most do not directly affect health and instead reflect the natural diversity seen across people. For many genes, having a variant associated with a condition points to a possible link rather than a confirmed diagnosis, particularly when several genes and environmental factors play a role. In other cases, though, a single well-characterized variant in a specific gene can be enough to confirm a diagnosis.
Are there things that can increase or change my risk?
For KIAA0586-related conditions, risk is mainly shaped by inheritance rather than lifestyle. A child’s chance is higher when both parents carry a harmful change in the KIAA0586 gene, and this can be more likely with a family history or parents who are blood relatives. There is not enough evidence that diet, exercise, or other daily habits change this genetic risk.
Inheritance of KIAA0586 variants
KIAA0586-related conditions are inherited in an autosomal recessive pattern. This means a person usually develops a KIAA0586-related condition only when they inherit one changed copy of the KIAA0586 gene from each parent. Parents who each carry one variant are typically unaffected carriers, and with each pregnancy there is a 25% chance of having an affected child, a 50% chance of having a child who is a carrier, and a 25% chance of having a child with two non-variant copies. In practical terms, how variants of the KIAA0586 gene are inherited is the same for sons and daughters.
What does my KIAA0586 result mean for my family?
For families with a disease-causing KIAA0586 result, the pattern is usually recessive, which means parents are often healthy carriers and brothers or sisters may also be affected or be carriers. Other close relatives, such as aunts, uncles, and cousins on both sides, may also carry the same change. For many living with a KIAA0586-related condition, this makes family testing an important topic to discuss together.
Genetic information
Genetic testing
How you find out about variants
Genetic testing for KIAA0586 variants usually uses a blood or saliva sample. A lab reads the DNA in the KIAA0586 gene to look for variants, often as part of a multigene panel or exome sequencing. Results can show whether a person carries one or two variants and whether a finding helps confirm a genetic diagnosis.
When should I consider getting a genetic test?
Genetic testing for the KIAA0586 gene may be considered when a child has signs of Joubert syndrome, such as low muscle tone, delayed development, unusual eye movements, or a brain scan showing the typical pattern. It can also be helpful if this condition runs in the family or if parents have had an affected child before.
A genetic result is only one part of your health story
A genetic result can be informative, but how much it reveals varies by the condition and the kind of variant involved. The way the body functions over time is also shaped by many factors, including lifestyle, environment, age, and medical history. In some conditions, especially those affected by many genes, genetic information provides context rather than certainty and is best considered alongside other parts of care. In other situations, a genetic result may give a clear answer. In areas like medication response, genetic results can also help put personal experiences into context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how your body responds to medicines. This helps explain why the same treatment works well for one person, has little effect in another, or causes more side effects in someone else. In many cases, inherited differences change how the body breaks down a drug, moves it through the bloodstream, or responds to it at its target. These differences are common and can influence both how well a medicine works and how sensitive a person is to it.
What is Pharmacogenetics?
Pharmacogenetics is the area of study focused on how genetic differences can shape a person’s response to medication. 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 can affect both how strongly a drug works and how the body processes it. This information can help support more informed, individualized treatment decisions. To read more about this topic, visit the LearnHub.
Drugs influenced by the KIAA0586 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in medication response, so any concerns about medicines, side effects, or changes in how you feel are best discussed with your doctor.
History
The KIAA0586 gene first appeared in the scientific literature during large DNA sequencing projects in the late 1990s, when many human genes were being cataloged and given temporary names. Initially understood only through visible traits, later recognized as tied to a specific gene, related work in animal models helped researchers connect KIAA0586 to early development. A major step came when studies of the talpid3 gene in chickens pointed to a human counterpart, which led scientists back to KIAA0586. In 2015, researchers reported that inherited variants in the KIAA0586 gene can cause Joubert syndrome in some families. From these first observations, research expanded steadily. That discovery helped explain cases that had remained unsolved after earlier genetic testing and made KIAA0586 a recognized part of the Joubert syndrome story.