CREAM is a new method for identification of clusters of genomic regions within chromosomes. Primarily, it is used for calling Clusters of cis-Regulatory Elements (COREs). CREAM uses genome-wide maps of genomic regions in the tissue or cell type of interest, such as those generated from chromatin-based assays including DNaseI, ATAC or ChIP-Seq.
CREAM considers proximity of the elements within chromosomes of a given sample to identify COREs in the following steps:
It identifies window size or the maximum allowed distance between the elements within each CORE
It identifies number of elements which should be clustered as a CORE
It calls COREs
It filters the COREs with lowest order which does not pass the threshold considered in the approach.
# Install from CRAN install.packages('CREAM') # Installing the development version from GitHub: # install.packages("devtools") devtools::install_github("bhklab/CREAM")
# Identify COREs using CREAM IdentifiedCOREs <- CREAM( in_path = system.file("extdata", "A549_Chr21.bed", package = "CREAM"), MinLength = 1000, peakNumMin = 2 )
Contact us by filing an issue in the CREAM issues page.
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