PMID- 22228019 OWN - NLM STAT- MEDLINE DCOM- 20120424 LR - 20120109 IS - 1940-6029 (Electronic) IS - 1064-3745 (Linking) VI - 838 DP - 2012 TI - Targeted screening and validation of copy number variations. PG - 311-28 LID - 10.1007/978-1-61779-507-7_15 [doi] AB - The accessibility of genome-wide screening technologies considerably facilitated the identification and characterization of copy number variations (CNVs). The increasing amount of available data describing these variants, clearly demonstrates their abundance in the human genome. This observation shows that not only SNPs, but also CNVs and other structural variants strongly contribute to genetic variation. Even though not all structural variants have an obvious phenotypic effect, there is evidence that CNVs influence gene dosage and hence can have profound effects on human disease susceptibility, disease manifestation, and disease severity. Therefore, CNV screening and analysis methodologies, specifically focusing on disease-related CNVs are actively progressing. This chapter specifically describes different techniques currently available for the targeted screening and validation of CNVs. We not only provide an overview of all these CNV analysis methods, but also address their strong and weak points. Methods covered include fluorescence in situ hybridization (FISH), quantitative real-time PCR (qPCR), paralogue ratio test (PRT), molecular copy-number counting (MCC), and multiplex PCR-based approaches, such as multiplex amplifiable probe hybridization (MAPH), multiplex ligation-dependent probe amplification (MLPA), multiplex PCR-based real-time invader assay (mPCR-RETINA), quantitative multiplex PCR of short fluorescent fragments (QMPSF), and multiplex amplicon quantification (MAQ). We end with some general remarks and conclusions, furthermore briefly addressing the future perspectives. FAU - Ceulemans, Shana AU - Ceulemans S AD - Applied Molecular Genomics Unit, VIB, Department of Molecular Genetics, Flanders, Belgium. FAU - van der Ven, Karlijn AU - van der Ven K FAU - Del-Favero, Jurgen AU - Del-Favero J LA - eng PT - Journal Article PT - Review PL - United States TA - Methods Mol Biol JT - Methods in molecular biology (Clifton, N.J.) JID - 9214969 SB - IM MH - *DNA Copy Number Variations MH - Gene Dosage MH - *Genome, Human MH - Humans MH - In Situ Hybridization, Fluorescence/methods MH - Multiplex Polymerase Chain Reaction/methods MH - Nucleic Acid Hybridization/methods MH - Polymorphism, Single Nucleotide MH - Real-Time Polymerase Chain Reaction/methods MH - Validation Studies as Topic EDAT- 2012/01/10 06:00 MHDA- 2012/04/25 06:00 CRDT- 2012/01/10 06:00 PHST- 2012/01/10 06:00 [entrez] PHST- 2012/01/10 06:00 [pubmed] PHST- 2012/04/25 06:00 [medline] AID - 10.1007/978-1-61779-507-7_15 [doi] PST - ppublish SO - Methods Mol Biol. 2012;838:311-28. doi: 10.1007/978-1-61779-507-7_15.