alexa Circular binary segmentation for the analysis of array-based DNA copy number data.
Mathematics

Mathematics

Journal of Biometrics & Biostatistics

Author(s): Olshen AB, Venkatraman ES, Lucito R, Wigler M

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Abstract DNA sequence copy number is the number of copies of DNA at a region of a genome. Cancer progression often involves alterations in DNA copy number. Newly developed microarray technologies enable simultaneous measurement of copy number at thousands of sites in a genome. We have developed a modification of binary segmentation, which we call circular binary segmentation, to translate noisy intensity measurements into regions of equal copy number. The method is evaluated by simulation and is demonstrated on cell line data with known copy number alterations and on a breast cancer cell line data set. This article was published in Biostatistics and referenced in Journal of Biometrics & Biostatistics

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