mart object, see useMart of bioMaRt package for details
featureType
TSS, miRNA, Exon, 5'UTR, 3'UTR, transcript or Exon plus UTR
Value
RangedData with slot start holding the start position of the feature, slot end holding the end position of the feature, slot names holding the id of the feature, slot space holding the chromosome location where the feature is located. In addition, the following variables are included.
strand
1 for positive strand and -1 for negative strand where the feature is located
description
description of the feeature such as gene
Details
References
Durinck S. et al. (2005) BioMart and Bioconductor: a powerful link between biological biomarts and microarray data analysis. Bioinformatics, 21, 3439-3440.