human.chrom.info.Jul03:
Basic Chromosomal Information for UCSC Human Genome Assembly July 2003
freeze
Description
This dataset contains basic chromosomal information for UCSC Human
Genome Assembly July 2003 freeze.
human.chrom.info.Jul03 is loaded automatically with the aCGH package.
Usage
human.chrom.info.Jul03
Format
A data frame with 24 observations on the following 3 variables.
- chrom
- Chromosomal index, X is coded as 23 and Y as 24.
- length
- Length of each chromosome in kilobases.
- centromere
-
Location of the centromere on the chromosome (kb).
Source
http://genome.ucsc.edu/cgi-bin/hgTextDetails
This file is used for many plotting functions and needs to correspond
to clones.info mapping file. The centromeric location is
approximately extimated by taking mid-point between the last
fish-mapped clone on the p-arm and the first fish-mapped clone on the
q-arm using relevant UCSC freeze.
For an alternative freeze, one needs to manually create a 3-column
file of the format described above.