PMID- 24129071 OWN - NLM STAT- MEDLINE DCOM- 20140121 LR - 20131111 IS - 1879-0038 (Electronic) IS - 0378-1119 (Linking) VI - 533 IP - 1 DP - 2014 Jan 1 TI - De novo MECP2 duplication derived from paternal germ line result in dysmorphism and developmental delay. PG - 78-85 LID - S0378-1119(13)01355-3 [pii] LID - 10.1016/j.gene.2013.10.001 [doi] AB - Xq28 duplications encompassing the methyl CpG binding protein 2 (MECP2) in males exhibit a distinct phenotype, including developmental delay, facial dysmorphism, muscular hypotonia, intellectual disability, poor or absent speech, recurrent infections and early death. The vast majority of affected males inherit the MECP2 duplication from their usually asymptomatic carrier mothers. Only a few cases with Xq28 duplication originating from de novo unbalanced X/Y translocation have been reported and the paternal origin of the aberration has only been validated in three males in the related literature. Here we present a karyotypically normal male with features characteristic of the MECP2 duplication syndrome. The genome-wide SNP genotyping shows a de novo 2.26-Mb duplication from Xq28 to the terminus. The genotypes of the SNPs within the duplicated region indicated a paternal origin. Furthermore, the results of fluorescence in situ hybridization (FISH) indicated a novel Xq:Yp translocation, characterized as der(Y)t(Y;X)(p11.32;q28), which suggests an aberrant that occurred during spermatogenesis. The phenotype is compared to the previously reported cases with Xq28 duplication originated from an unbalanced X/Y translocation, and there was no specific part of the phenotype that could be contributed to the origin of parental imbalances. This report further highlights the capacity of high-molecular cytogenetic methods, such as SNP array and FISH, in the identification of submicroscopic rearrangement, structural configuration and parental origin of aberrant while in the evaluation of children with idiopathic developmental delay and intellectual disability. CI - (c) 2013. FAU - Lin, Dar-Shong AU - Lin DS AD - Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan; Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan; Mackay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan. FAU - Chuang, Tzu-Po AU - Chuang TP FAU - Chiang, Ming-Fu AU - Chiang MF FAU - Ho, Che-Sheng AU - Ho CS FAU - Hsiao, Chung-Der AU - Hsiao CD FAU - Huang, Yu-Wen AU - Huang YW FAU - Wu, Tsu-Yen AU - Wu TY FAU - Wu, Jer-Yuarn AU - Wu JY FAU - Chen, Yuan-Tsong AU - Chen YT FAU - Chen, Tsai-Chuan AU - Chen TC FAU - Li, Ling-Hui AU - Li LH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131012 PL - Netherlands TA - Gene JT - Gene JID - 7706761 RN - 0 (MECP2 protein, human) RN - 0 (Methyl-CpG-Binding Protein 2) SB - IM MH - Child MH - *Chromosome Aberrations MH - Chromosomes, Human, X MH - Chromosomes, Human, Y MH - Developmental Disabilities/*genetics MH - *Genomic Imprinting MH - *Germ Cells MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Methyl-CpG-Binding Protein 2/*genetics MH - Polymorphism, Single Nucleotide MH - Real-Time Polymerase Chain Reaction OTO - NOTNLM OT - CGH OT - CNVs OT - Disomy OT - FISH OT - FoSTeS OT - Fork Stalling and Template Switching OT - IFN-alpha OT - MECP2 OT - MECP2 duplication OT - SNP OT - SNP array OT - Translocation OT - Xq28 OT - comparative genome hybridization OT - copy number variations OT - fluorescence in situ hybridization OT - interferon alpha OT - methyl CpG binding protein 2 OT - single-nucleotide polymorphism EDAT- 2013/10/17 06:00 MHDA- 2014/01/22 06:00 CRDT- 2013/10/17 06:00 PHST- 2013/08/26 00:00 [received] PHST- 2013/09/26 00:00 [revised] PHST- 2013/10/01 00:00 [accepted] PHST- 2013/10/17 06:00 [entrez] PHST- 2013/10/17 06:00 [pubmed] PHST- 2014/01/22 06:00 [medline] AID - S0378-1119(13)01355-3 [pii] AID - 10.1016/j.gene.2013.10.001 [doi] PST - ppublish SO - Gene. 2014 Jan 1;533(1):78-85. doi: 10.1016/j.gene.2013.10.001. Epub 2013 Oct 12.