Journal
EUROPEAN JOURNAL OF HUMAN GENETICS
Volume 18, Issue 10, Pages 1114-1120Publisher
SPRINGERNATURE
DOI: 10.1038/ejhg.2010.66
Keywords
microarray-based comparative genomic hybridization; short arm of chromosome 8; copy number variant; genomic disorders
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We evaluated 966 consecutive pediatric patients with various developmental disorders by high-resolution microarray-based comparative genomic hybridization and found 10 individuals with pathogenic copy number variants (CNVs) on the short arm of chromosome 8 (8p), representing approximately 1% of the patients analyzed. Two patients with 8p terminal deletion associated with interstitial inverted duplication (inv dup del(8p)) had different mechanisms leading to the formation of a dicentric intermediate during meiosis. Three probands carried an identical similar to 5.0Mb interstitial duplication of chromosome 8p23.1. Four possible hotspots within 8p were observed at nucleotide coordinates of similar to 10.45, 24.32-24.82, 32.19-32.77, and 38.94-39.72 Mb involving the formation of recurrent genomic rearrangements. Other CNVs with deletion-or duplication-specific start or stop coordinates on the 8p provide useful information for exploring the basic mechanisms of complex structural rearrangements in the human genome. European Journal of Human Genetics (2010) 18, 1114-1120; doi: 10.1038/ejhg.2010.66; published online 12 May 2010
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