A Cytoband Annotation Data Frame
This four-column data frame contains cytoband annotation data that is used by the makeCytoband
function. Each row corresponds to a distinct cytoband, and column 1 contains the chromosome
number, column 2 contains the start position (in base pairs), column 3 contains the end position (in base pairs), and column 4 contains the cytoband name (e.g. p21.3). Additional columns
may be present, but they are not used.
data(annot.file)
A data frame with 811 observations on the following 4 variables.
Chr
The chromosome for the cytoband
Start
The start position (in base pairs) for the cytoband
End
The end position (in base pairs) for the cytoband
Band
The cytoband name (e.g. p13.1)
The file cytoBand.txt.gz for the hg19 build can be downloaded from the UCSC Genome Browser at http://hgdownload.cse.ucsc.edu/goldenPath/hg19/database/. The format of cytoBand.txt differs from that
of annot.file, but it can be used by the function makeCytoband
if reformat.cytoband = TRUE
.
Fujita P.A., Rhead B., Zweig A.S., et al., The UCSC Genome Browser database: update 2011, Nucleic Acids Res. (2010) 1 - 7 doi:10.1093/nar/gkq963.
data(annot.file) annot.file[1:10,] #Produces the following output #Chr Start End Band #1 1 0 2300000 p36.33 #2 1 2300000 5300000 p36.32 #3 1 5300000 7100000 p36.31 #4 1 7100000 9200000 p36.23 #5 1 9200000 12600000 p36.22 #6 1 12600000 16100000 p36.21 #7 1 16100000 20300000 p36.13 #8 1 20300000 23800000 p36.12 #9 1 23800000 27800000 p36.11 #10 1 27800000 30000000 p35.3
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