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Molecular karyotyping in 17 patients and mutation screening in 41 patients with Kabuki syndrome.

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Title: Molecular karyotyping in 17 patients and mutation screening in 41 patients with Kabuki syndrome.
Authors: Kuniba, Hideo / Yoshiura, Koh-Ichiro / Kondoh, Tatsuro / Ohashi, Hirofumi / Kurosawa, Kenji / Tonoki, Hidefumi / Nagai, Toshiro / Okamoto, Nobuhiko / Kato, Mitsuhiro / Fukushima, Yoshimitsu / Kaname, Tadashi / Naritomi, Kenji / Matsumoto, Tadashi / Moriuchi, Hiroyuki / Kishino, Tatsuya / Kinoshita, Akira / Miyake, Noriko / Matsumoto, Naomichi / Niikawa, Norio
Issue Date: May-2009
Citation: Journal of Human Genetics (2009) 54, 304–309
Abstract: The Kabuki syndrome (KS, OMIM 147920), also known as the Niikawa-Kuroki syndrome, is a multiple congenital anomaly/mental retardation syndrome characterized by a distinct facial appearance. The cause of KS has been unidentified, even by whole-genome scan with array comparative genomic hybridization (CGH). In recent years, high-resolution oligonucleotide array technologies have enabled us to detect fine copy number alterations. In 17 patients with KS, molecular karyotyping was carried out with GeneChip 250K NspI array (Affymetrix) and Copy Number Analyser for GeneChip (CNAG). It showed seven copy number alterations, three deleted regions and four duplicated regions among the patients, with the exception of registered copy number variants (CNVs). Among the seven loci, only the region of 9q21.11-q21.12 ( approximately 1.27 Mb) involved coding genes, namely, transient receptor potential cation channel, subfamily M, member 3 (TRPM3), Kruppel-like factor 9 (KLF9), structural maintenance of chromosomes protein 5 (SMC5) and MAM domain containing 2 (MAMDC2). Mutation screening for the genes detected 10 base substitutions consisting of seven single-nucleotide polymorphisms (SNPs) and three silent mutations in 41 patients with KS. Our study could not show the causative genes for KS, but the locus of 9q21.11-q21.12, in association with a cleft palate, may contribute to the manifestation of KS in the patient. As various platforms on oligonucleotide arrays have been developed, higher resolution platforms will need to be applied to search tiny genomic rearrangements in patients with KS.Journal of Human Genetics (2009) 54, 304-309; doi:10.1038/jhg.2009.30; published online 03 April 2009.
Keywords: Kabuki syndrome / microdeletion / molecular karyotyping / mutation screening / Niikawa–Kuroki syndrome
URI: http://hdl.handle.net/10069/22018
ISSN: 14345161
DOI: 10.1038/jhg.2009.30
PubMed ID: 19343044
Rights: © 2009 The Japan Society of Human Genetics
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/22018

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