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Fragile X-Associated Tremor and Ataxia Syndrome (FXTAS) : Condition Information

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What is Fragile X-Associated Tremor and Ataxia Syndrome (FXTAS)?

FXTAS is a condition that develops in some men and women who have an altered form of a specific gene. People with FXTAS have a change or mutation in a gene called the Fragile X Mental Retardation 1 (FMR1) gene. This gene is found on the X chromosome. To learn more, visit the How is a change in a gene related to FXTAS? section.

FXTAS occurs later in life (in people older than age 50) and is characterized by tremors when making purposeful movements, balance problems, Parkinson's-like symptoms such as muscle stiffness or rigidity, and memory loss. Most people have no symptoms until the onset of the condition later in life.


How is a change in a gene related to FXTAS? »

Last Updated Date: 11/30/2012
Last Reviewed Date: 11/30/2012
Vision National Institutes of Health Home BOND National Institues of Health Home Home Storz Lab: Section on Environmental Gene Regulation Home Machner Lab: Unit on Microbial Pathogenesis Home Division of Intramural Population Health Research Home Bonifacino Lab: Section on Intracellular Protein Trafficking Home Lilly Lab: Section on Gamete Development Home Lippincott-Schwartz Lab: Section on Organelle Biology