Cited by 658Genomic variations and chromosomal abnormalitiesGenome Rearrangement AlgorithmsGenetics and Neurodevelopmental Disorders

Discovery of previously unidentified genomic disorders from the duplication architecture of the human genome

Sharp, Andrew J, Hansen, Sierra, Selzer, Rebecca R, Cheng, Ze, Regan, Regina, Hurst, Jane A, Stewart, Helen, Price, Sue M +12 more·2006·Nature Genetics

Abstract

Genomic disorders are characterized by the presence of flanking segmental duplications that predispose these regions to recurrent rearrangement. Based on the duplication architecture of the genome, we investigated 130 regions that we hypothesized as candidates for previously undescribed genomic disorders. We tested 290 individuals with mental retardation by BAC array comparative genomic hybridization and identified 16 pathogenic rearrangements, including de novo microdeletions of 17q21.31 found in four individuals. Using oligonucleotide arrays, we refined the breakpoints of this microdeletion, defining a 478-kb critical region containing six genes that were deleted in all four individuals. We mapped the breakpoints of this deletion and of four other pathogenic rearrangements in 1q21.1, 15q13, 15q24 and 17q12 to flanking segmental duplications, suggesting that these are also sites of recurrent rearrangement. In common with the 17q21.31 deletion, these breakpoint regions are sites of copy number polymorphism in controls, indicating that these may be inherently unstable genomic regions.

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Crossref · 10.1038/ng1862

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  • Large de novo copy number variants are significantly enriched among ASD/ID probands compared with unaffected siblings or controls.

    “By contrast, targeted and genome-wide microarray studies revealed that large de novo copy number variants (CNVs) were significantly enriched among probands when compared to unaffected siblings and/or controls [8–14]”

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Authors
Sharp, A. J., Hansen, S., Selzer, R. R., Cheng, Z., Regan, R., Hurst, J. A., Stewart, H., Price, S. M., Blair, E., Hennekam, R. C., Fitzpatrick, C. A., Segraves, R., Richmond, T. A., Guiver, C., Albertson, D. G., Pinkel, D., Eis, P. S., Schwartz, S., Knight, S. J. L., & Eichler, E. E.
Affiliations
  • Howard Hughes Medical Institute (US)
  • F. Hoffmann-La Roche AG (CH)
  • Centre for Human Genetics (GB)
  • National Health Service (GB)
  • Amsterdam UMC Location University of Amsterdam (NL)
  • University of Chicago (US)
  • University of California, San Francisco (US)
Corresponding author
Eichler, Evan E
Venue
Nature Genetics
Published
2006-08-13
Volume
38
Issue
9
Pages
1038-1042
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2110793364
Cited by
658
References
28
Citations by year
2026: 4 · 2025: 8 · 2024: 10 · 2023: 10 · 2022: 7 · 2021: 24 · 2020: 12 · 2019: 13 · 2018: 17 · 2017: 21 · 2016: 12 · 2015: 29 · 2014: 79 · 2013: 32 · 2012: 43
FWCI
40.02
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD043569, R01HD043569)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genome Rearrangement Algorithms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
genomic disorders, segmental duplication, microdeletion, 1q21.1, 17q12, breakpoint mapping, copy number variation, intellectual disability, de novo deletion, chromosomal instability
MeSH terms
Chromosome Deletion, Chromosomes, Human, Pair 17, Heterozygote, Humans, Intellectual Disability, Mosaicism, Nucleic Acid Hybridization, Polymorphism, Genetic, Gene Rearrangement, Genome, Human, In Situ Hybridization, Fluorescence, Gene Dosage, Chromosome Breakage, Physical Chromosome Mapping, Oligonucleotide Array Sequence Analysis, Gene Duplication, Chromosomes, Artificial, Bacterial

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