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Article

Fragile X-associated tremor/ataxia syndrome (FXTAS) in grey zone carriers.

Clinical genetics - 1 Jul 2013

Liu Y, Winarni T I, Zhang L, Tassone F, Hagerman R J

Abstract excerpt

The grey zone (GZ; 45-54 CGG repeats in the FMR1 gene) is considered a normal allele; however, several studies have found a high frequency of GZ in movement disordered populations. Here, we describe neurological features of fragile X-associated tremor/ataxia syndrome (FXTAS) in two carriers of GZ alleles, although FXTAS has been defined as occurring only in premutation carriers (55-200 CGG repeats). Both patients...

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Identifiers

PMID: 23009394
DOI: 10.1111/cge.12026
PMCID: PMC4991824

Genes

FMR1

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 3 Sept 2026.

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