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Mermel, Craig H; Schumacher, Steven E; Hill, Barbara; Meyerson, Matthew L; Beroukhim, Rameen; Getz, Gad
Genome biology, 04/2011, Letnik: 12, Številka: 4Journal Article
We describe methods with enhanced power and specificity to identify genes targeted by somatic copy-number alterations (SCNAs) that drive cancer growth. By separating SCNA profiles into underlying arm-level and focal alterations, we improve the estimation of background rates for each category. We additionally describe a probabilistic method for defining the boundaries of selected-for SCNA regions with user-defined confidence. Here we detail this revised computational approach, GISTIC2.0, and validate its performance in real and simulated datasets.
