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Delineation of 2q32q35 deletion phenotypes: two apparent "proximal" and "distal" syndromes.


ABSTRACT: We report on three patients with interstitial deletions of the long arm of chromosome 2 involving bands 2q32.1-q35. They presented with wide-ranging phenotypic variation including facial dysmorphisms, cleft palate, learning difficulties, behavioural issues and severe heart defects. Microarray analysis confirmed an 8.6?Mb deletion in patients 1 and 2 and a 24.7?Mb deletion in patient 3. We discuss the genes involved in the deleted regions including MYO1B, GLS, FRZB, SATB2, and CPS1 and compare the phenotype with those reported in the literature. Taken together, these data suggest that there is a spectrum of disease severity such that patients with deletions encompassing the region of 2q32.1q32.2, which includes the FRZB gene, show an apparently milder phenotype compared to those that lie further distal in 2q32.3q35 that encompasses the SATB2 gene.

SUBMITTER: Mc Cormack A 

PROVIDER: S-EPMC3690635 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Delineation of 2q32q35 deletion phenotypes: two apparent "proximal" and "distal" syndromes.

Mc Cormack Adrian A   Taylor Juliet J   Gregersen Nerine N   George Alice M AM   Love Donald R DR  

Case reports in genetics 20130609


We report on three patients with interstitial deletions of the long arm of chromosome 2 involving bands 2q32.1-q35. They presented with wide-ranging phenotypic variation including facial dysmorphisms, cleft palate, learning difficulties, behavioural issues and severe heart defects. Microarray analysis confirmed an 8.6 Mb deletion in patients 1 and 2 and a 24.7 Mb deletion in patient 3. We discuss the genes involved in the deleted regions including MYO1B, GLS, FRZB, SATB2, and CPS1 and compare th  ...[more]

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