Chromosome Conformation Capture on Chip (4C): Data Processing

Benjamin Olivier Leblanc, Itys Comet, Frédéric Bantignies, Giacomo Cavalli

    Abstract

    4C methods are useful to investigate dependencies between regulatory mechanisms and chromatin structures by revealing the frequency of chromatin contacts between a locus of interest and remote sequences on the chromosome. In this chapter we describe a protocol for the data analysis of microarray-based 4C experiments, presenting updated versions of the methods we used in a previous study of the large-scale chromatin interaction profile of a Polycomb response element in Drosophila. The protocol covers data preparation, normalization, microarray probe selection, and the multi-resolution detection of regions with enriched chromatin contacts. A reanalysis of two independent mouse datasets illustrates the versatility of this protocol and the importance of data processing in 4C. Methods were implemented in the R package MRA.TA (Multi-Resolution Analyses on Tiling Array data), and they can be used to analyze ChIP-on-chip data on broadly distributed chromatin components such as histone marks.

    OriginalsprogEngelsk
    TitelPolycomb Group Proteins : Methods and Protocols
    RedaktørerChiara Lanzuolo, Beatrice Bodega
    Antal sider19
    Vol/bind1480
    ForlagSpringer
    Publikationsdato2016
    Sider243-61
    Kapitel21
    ISBN (Trykt)978-1-4939-6378-2
    ISBN (Elektronisk) 978-1-4939-6380-5
    DOI
    StatusUdgivet - 2016
    NavnMethods in Molecular Biology
    ISSN1064-3745

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