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Type: Journal article
Title: ARX, a novel Prd-class-homeobox gene highly expressed in the telencephalon, is mutated in X-linked mental retardation
Author: Bienvenu, T.
Poirier, K.
Friocourt, G.
Bahi, N.
Beaumont, D.
Fauchereau, F.
Jeema, L.
Zemni, R.
Vinet, M.
Francis, F.
Couvert, P.
Gomot, M.
Moraine, C.
van Bokhoven, H.
Kalscheuer, V.
Frints, S.
Gecz, J.
Ohzaki, K.
Chaabouni, H.
Fryns, J.
et al.
Citation: Human Molecular Genetics, 2002; 11(8):981-991
Publisher: Oxford Univ Press
Issue Date: 2002
ISSN: 0964-6906
Statement of
Thierry Bienvenu, Karine Poirier, Gaelle Friocourt, Nadia Bahi, Delphine Beaumont, Fabien Fauchereau, Lamia Ben Jeema, Ramzi Zemni, Marie-Claude Vinet, Fiona Francis, Philippe Couvert, Marie Gomot, Claude Moraine, Hans van Bokhoven, Vera Kalscheuer, Suzanne Frints, Josef Gecz, Kanae Ohzaki, Habiba Chaabouni, Jean-Pierre Fryns, Vincent Desportes, Cherif Beldjord and Jamel Chelly
Abstract: Investigation of a critical region for an X-linked mental retardation (XLMR) locus led us to identify a novel Aristaless related homeobox gene (ARX ). Inherited and de novo ARX mutations, including missense mutations and in frame duplications/insertions leading to expansions of polyalanine tracts in ARX, were found in nine familial and one sporadic case of MR. In contrast to other genes involved in XLMR, ARX expression is specific to the telencephalon and ventral thalamus. Notably there is an absence of expression in the cerebellum throughout development and also in adult. The absence of detectable brain malformations in patients suggests that ARX may have an essential role, in mature neurons, required for the development of cognitive abilities.
Keywords: Telencephalon; Chromosomes, Human, X; Humans; Sex Chromosome Disorders; Peptides; Homeodomain Proteins; Transcription Factors; Pedigree; Sequence Analysis, DNA; Sequence Analysis, Protein; Gene Expression; Amino Acid Sequence; Mutation; Mutation, Missense; Genes, Homeobox; Molecular Sequence Data; Adolescent; Adult; Middle Aged; Child; Child, Preschool; Intellectual Disability
Rights: Copyright © 2002 Oxford University Press
RMID: 0020021107
DOI: 10.1093/hmg/11.8.981
Appears in Collections:Paediatrics publications

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