The LRRC37A gene helps make a protein that appears to support how cells handle signals and move materials at the cell surface. This gene plays an important role in a complex part of chromosome 17 that is active in the brain and other tissues. When LRRC37A is disrupted as part of a larger DNA change in this region, some people may have developmental or neurologic differences.
What is a gene?
A gene is a section of DNA that carries instructions your cells use to make molecules or manage processes throughout the body. Some genes provide the code for proteins, which are the parts of cells that do much of the work. Other genes mainly help regulate when certain processes happen, where they take place, and how active they are. Taken together, genes help guide how the body grows and works, and they can influence how you respond to food, stress, and medications. For a deeper look at this topic, you can find more information in the LearnHub.
Overview
LRRC37AGene function
What if the gene works
The LRRC37A gene makes a protein that may help cells communicate with their surroundings and move in a coordinated way. It is active in several tissues, including the brain, where it likely supports everyday cell function.
Risk
What if the gene does not work
DNA changes in the LRRC37A gene can alter how much LRRC37A protein a cell makes or how well it works at the cell surface. Milder and more severe variants may leave different amounts of normal activity.
Treatment
What does that mean for your treatment
No LRRC37A-specific treatment or management approach is currently established. The LRRC37A gene is mainly being studied as part of the 17q21.31 region, where it may help researchers understand some brain-related conditions rather than guide current drug choices.
Gene function
What if the gene works
In your cells, the LRRC37A gene helps make a protein that sits mainly near the cell surface. This protein contains repeat sections that are built for linking up with other proteins. Understanding what the LRRC37A gene does in your cells helps explain how cells handle routine signaling and organization.
The LRRC37A gene makes a protein with repeat sections that help it connect with other proteins. These links support organized cell activity and help signals move through the right pathways.
Much of the LRRC37A protein is associated with the cell membrane, the cell’s outer layer. From this position, it supports how cells sense nearby cues and coordinate routine responses.
What is a variant?
A genetic variant is a minor difference in the DNA sequence within a gene. These differences are common and are part of normal human diversity, including variation 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 works more substantially and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
How variants in the LRRC37A gene affect protein function depends on the change: some alter the protein’s shape or stability, while others change how much of it a cell makes. Milder variants may leave some usable protein, but more disruptive changes, including variants that cut the protein short or larger deletions, can sharply reduce protein production or leave an unstable protein. Variants in this repeat rich region can also affect gene regulation and copy number.
How variants are linked to conditions
At present, variants in the LRRC37A gene linked to conditions do not have a broadly confirmed connection to one specific health condition, though this may change as research develops. If you carry a reported change in the LRRC37A gene, your doctor or genetic counselor can help explain what it may or may not mean for your health.
A variant is not necessarily a diagnosis
Variants in genes are a usual feature of human biology and are widely found across the general population. Most do not directly affect health and instead represent normal human diversity. For many genes, having a variant associated with a condition indicates a possible link, not a definite diagnosis, particularly when several genes 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 LRRC37A itself. If LRRC37A comes up on genetic testing, your overall risk usually depends more on the wider genetic finding and your personal and family history, and a doctor or genetic counselor can help explain that.
Inheritance of LRRC37A variants
There is not yet a broadly confirmed disease inheritance pattern for the LRRC37A gene, so LRRC37A gene variants are not currently described with a well-established autosomal dominant or autosomal recessive pattern tied to a specific condition. The LRRC37A inheritance picture may become clearer as research develops. The LRRC37A gene is located on chromosome 17, which is an autosome, so you inherit one copy from your mother and one copy from your father.
What does my LRRC37A result mean for my family?
There is not yet a broadly confirmed inheritance pattern tied to a specific health condition for LRRC37A. If you have a specific LRRC37A result and want to understand what it could mean for 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 for variants in the LRRC37A gene usually analyzes DNA from a blood sample, saliva, or a cheek swab. Labs often look at this gene as part of broader sequencing, and some also use methods that check for missing or extra pieces of DNA. Results may identify a benign variant, a disease linked variant, or an uncertain finding.
When should I consider getting a genetic test?
There is not yet a broadly established medical reason to get genetic testing focused on the LRRC37A gene. Decisions about testing are usually based on your personal health and family history and are best made with a doctor or genetic counselor.
A genetic result is only one part of your health story
Genetic results can be informative, but how much they reveal varies by the condition and the type of variant involved. Over time, the body is also shaped by factors such as age, environment, lifestyle, and medical history. For some conditions, especially those influenced by many genes, genetic information provides context rather than certainty and is best viewed 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 people respond to medicines. This helps explain why the same treatment may work well for one person, seem less effective for another, or cause more side effects in someone else. These differences are common because genes can influence how the body breaks down, moves, or responds to a medication.
What is Pharmacogenetics?
Pharmacogenetics is the area of study that examines how genetic differences affect a person’s response to medications. It focuses on relationships 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 how strongly a drug works or how the body handles it. This information can support more informed, more individualized treatment decisions. If you want to explore this subject further, you can learn more in the LearnHub.
Drugs influenced by the LRRC37A gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication response, so any questions about side effects, how well a medicine is working, or possible interactions are best discussed with your doctor.