The FAM90A13 gene belongs to a family of very similar genes found in repeated stretches of DNA and likely supports basic cell processes. If it does not work as expected, it is not usually linked on its own to a clear, recognizable health condition. In everyday medicine, FAM90A13 is mainly a research gene rather than one doctors commonly use to confirm a diagnosis or guide treatment.
What is a gene?
Genes are stretches of DNA that carry instructions cells use to make molecules or manage processes throughout the body. Some genes provide the code for proteins, which do much of the work inside cells. Others mostly regulate when certain processes happen, where they happen, and how active they are. Taken together, genes affect how the body grows and works, and they can also influence how you respond to food, stress, and medicines. To look into this topic more closely, you can find more in the LearnHub.
Overview
FAM90A13Gene function
What if the gene works
The FAM90A13 gene is part of a family of very similar genes in human DNA. It may support routine cell activity.
Risk
What if the gene does not work
Variants in the FAM90A13 gene may change how much RNA or protein the cell makes. Milder variants may have little effect, while more severe variants can more strongly disrupt the FAM90A13 gene’s normal cellular activity.
Treatment
What does that mean for your treatment
No treatment or management approach is currently established specifically for pathogenic variants in the FAM90A13 gene.
Gene function
What if the gene works
Inside your cells, FAM90A13 is part of the normal flow from DNA instructions to the molecules cells use each day. Cells read this stretch of DNA into RNA and use that information during routine cell activity. This helps explain what the FAM90A13 gene does in the body at a basic level.
The FAM90A13 gene carries instructions that cells can copy into RNA and use as a blueprint for making its protein. This is part of the usual way cells turn DNA information into the molecules that support routine cell function.
What is a variant?
A genetic variant is a small difference in the DNA sequence of a gene. These differences are common and help create normal human diversity, including differences in appearance, metabolism, or how the body responds to environmental influences. Many have no noticeable effect and simply represent natural genetic variation. In some situations, though, a variant can change how a gene functions to a greater extent and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
How FAM90A13 gene variants affect function usually depends on whether the DNA change alters the coding sequence or RNA splicing (the way the gene's message is cut and joined). Milder variants may slightly change the predicted protein's shape, stability, or cellular interactions. More disruptive variants, including early stop changes or splicing variants, can greatly reduce the amount of full-length protein made or stop it from being made at all.
How variants are linked to conditions
Variants in the FAM90A13 gene do not yet have a broadly confirmed link to a specific health condition, so evidence on how FAM90A13 variants are linked to conditions is still evolving. Anyone with a reported variant in the FAM90A13 gene should interpret it with their own medical history and guidance from their doctor or genetic counselor.
A variant is not necessarily a diagnosis
Genetic variants are a usual part of human biology and are widespread in the general population. Most do not have a direct effect on health and simply reflect natural human variation. For 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 are involved. In other cases, a single well-characterized variant in a particular 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 FAM90A13. Anyone with concerns about personal or family risk can discuss it with a doctor or genetic counselor.
Inheritance of FAM90A13 variants
There is not yet a broadly confirmed inheritance pattern for disease linked specifically to the FAM90A13 gene, so how variants of the FAM90A13 gene are inherited in a medical sense has not been firmly established. FAM90A13 is located on chromosome 8, which is an autosome, so you inherit copies of this gene from both parents.
What does my FAM90A13 result mean for my family?
There is not yet a broadly confirmed inheritance pattern tied to a specific health condition for FAM90A13, though this understanding can change as research develops. If you have a specific FAM90A13 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 personal and family history.
Genetic information
Genetic testing
How you find out about variants
To look for changes in the FAM90A13 gene, doctors use genetic testing for FAM90A13 variants on a blood sample, saliva, or cheek swab. A lab reads the DNA sequence and compares it with a standard reference to spot variants. Results may identify a specific variant or show that no reportable change was found.
When should I consider getting a genetic test?
There isn't yet a broadly established, FAM90A13-specific clinical reason for testing. Decisions about genetic testing are usually based on your personal health, family history, and whether a doctor or genetic counselor thinks a broader test could be helpful.
A genetic result is only one part of your health story
A genetic test result can provide useful insight, but how much it reveals varies by the condition and the type of variant involved. Over time, many factors, including lifestyle, environment, age, and medical history, affect how the body functions. For some conditions, especially those influenced by many genes, genetic information offers context rather than certainty and is most helpful when viewed 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 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 absorbs, breaks down, transports, or responds to a drug, so the same treatment may work better for one person than for another. This is common and can influence how much benefit someone gets from a medicine or how sensitive they are to side effects.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences affect the way people respond to medications. It studies patterns between genes and drugs to help explain why treatments can work differently from one person to another. For many medicines, genes influence both how strongly a drug works and how the body processes it. This information can support more informed, individualized treatment decisions. More detail on this topic is available in the LearnHub.
Drugs influenced by the FAM90A13 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in how the body responds to medicines, so general medication questions, side effects, or other health concerns are best discussed with your doctor.