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  • 1
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    De novo mutations in histone-modifying genes in congenital heart disease (2013)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2013-05-15
    Description: Congenital heart disease (CHD) is the most frequent birth defect, affecting 0.8% of live births. Many cases occur sporadically and impair reproductive fitness, suggesting a role for de novo mutations. Here we compare the incidence of de novo mutations in 362 severe CHD cases and 264 controls by analysing exome sequencing of parent-offspring trios. CHD cases show a significant excess of protein-altering de novo mutations in genes expressed in the developing heart, with an odds ratio of 7.5 for damaging (premature termination, frameshift, splice site) mutations. Similar odds ratios are seen across the main classes of severe CHD. We find a marked excess of de novo mutations in genes involved in the production, removal or reading of histone 3 lysine 4 (H3K4) methylation, or ubiquitination of H2BK120, which is required for H3K4 methylation. There are also two de novo mutations in SMAD2, which regulates H3K27 methylation in the embryonic left-right organizer. The combination of both activating (H3K4 methylation) and inactivating (H3K27 methylation) chromatin marks characterizes 'poised' promoters and enhancers, which regulate expression of key developmental genes. These findings implicate de novo point mutations in several hundreds of genes that collectively contribute to approximately 10% of severe CHD.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3706629/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3706629/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zaidi, Samir -- Choi, Murim -- Wakimoto, Hiroko -- Ma, Lijiang -- Jiang, Jianming -- Overton, John D -- Romano-Adesman, Angela -- Bjornson, Robert D -- Breitbart, Roger E -- Brown, Kerry K -- Carriero, Nicholas J -- Cheung, Yee Him -- Deanfield, John -- DePalma, Steve -- Fakhro, Khalid A -- Glessner, Joseph -- Hakonarson, Hakon -- Italia, Michael J -- Kaltman, Jonathan R -- Kaski, Juan -- Kim, Richard -- Kline, Jennie K -- Lee, Teresa -- Leipzig, Jeremy -- Lopez, Alexander -- Mane, Shrikant M -- Mitchell, Laura E -- Newburger, Jane W -- Parfenov, Michael -- Pe'er, Itsik -- Porter, George -- Roberts, Amy E -- Sachidanandam, Ravi -- Sanders, Stephan J -- Seiden, Howard S -- State, Mathew W -- Subramanian, Sailakshmi -- Tikhonova, Irina R -- Wang, Wei -- Warburton, Dorothy -- White, Peter S -- Williams, Ismee A -- Zhao, Hongyu -- Seidman, Jonathan G -- Brueckner, Martina -- Chung, Wendy K -- Gelb, Bruce D -- Goldmuntz, Elizabeth -- Seidman, Christine E -- Lifton, Richard P -- 5U54HG006504/HG/NHGRI NIH HHS/ -- F30 HL123238/HL/NHLBI NIH HHS/ -- P30 HD018655/HD/NICHD NIH HHS/ -- T32 GM007205/GM/NIGMS NIH HHS/ -- U01 HG006546/HG/NHGRI NIH HHS/ -- U01 HL098123/HL/NHLBI NIH HHS/ -- U01 HL098147/HL/NHLBI NIH HHS/ -- U01 HL098153/HL/NHLBI NIH HHS/ -- U01 HL098162/HL/NHLBI NIH HHS/ -- U01 HL098163/HL/NHLBI NIH HHS/ -- U01-HL098123/HL/NHLBI NIH HHS/ -- U01-HL098147/HL/NHLBI NIH HHS/ -- U01-HL098153/HL/NHLBI NIH HHS/ -- U01-HL098162/HL/NHLBI NIH HHS/ -- U01-HL098163/HL/NHLBI NIH HHS/ -- U01-HL098188/HL/NHLBI NIH HHS/ -- U54 HG006504/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2013 Jun 13;498(7453):220-3. doi: 10.1038/nature12141. Epub 2013 May 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Yale University School of Medicine, New Haven, Connecticut 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23665959" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Case-Control Studies ; Child ; Chromatin/chemistry/metabolism ; DNA Mutational Analysis ; Enhancer Elements, Genetic/genetics ; Exome/genetics ; Female ; Genes, Developmental/genetics ; Heart Diseases/*congenital/*genetics/metabolism ; Histones/chemistry/*metabolism ; Humans ; Lysine/chemistry/metabolism ; Male ; Methylation ; Mutation ; Odds Ratio ; Promoter Regions, Genetic/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Rare copy number variations in congenital heart disease patients identify unique genes in left-right patterning (2011)
    National Academy of Sciences
    Details
    Publication Date: 2011-01-31
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 3
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    Rare copy number variations in congenital heart disease patients identify unique genes in left-right patterning [Medical Sciences] (2011)
    National Academy of Sciences
    Details
    Publication Date: 2011-02-16
    Description: Dominant human genetic diseases that impair reproductive fitness and have high locus heterogeneity constitute a problem for gene discovery because the usual criterion of finding more mutations in specific genes than expected by chance may require extremely large populations. Heterotaxy (Htx), a congenital heart disease resulting from abnormalities in left-right (LR) body patterning, has features suggesting that many cases fall into this category. In this setting, appropriate model systems may provide a means to support implication of specific genes. By high-resolution genotyping of 262 Htx subjects and 991 controls, we identify a twofold excess of subjects with rare genic copy number variations in Htx (14.5% vs. 7.4%, P = 1.5 × 10−4). Although 7 of 45 Htx copy number variations were large chromosomal abnormalities, 38 smaller copy number variations altered a total of 61 genes, 22 of which had Xenopus orthologs. In situ hybridization identified 7 of these 22 genes with expression in the ciliated LR organizer (gastrocoel roof plate), a marked enrichment compared with 40 of 845 previously studied genes (sevenfold enrichment, P 〈 10−6). Morpholino knockdown in Xenopus of Htx candidates demonstrated that five (NEK2, ROCK2, TGFBR2, GALNT11, and NUP188) strongly disrupted both morphological LR development and expression of pitx2, a molecular marker of LR patterning. These effects were specific, because 0 of 13 control genes from rare Htx or control copy number variations produced significant LR abnormalities (P = 0.001). These findings identify genes not previously implicated in LR patterning.
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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