did you try a google search with "bioconductor import GTF" -- there are a
few direct solutions including

http://manuals.bioinformatics.ucr.edu/home/ht-seq#TOC-Parsing-Gene-Intergenic-Regions-Bas


On Tue, Nov 29, 2011 at 2:05 PM, sunny [guest] <guest@bioconductor.org>wrote:

>
> Any R based package to integrate GTF format gene annotation to
> GenomicRanges object? or make a .sqlite object then can be saved
> (saveFeatures) for future use?
> really need this tool for RNAseq data analysis. Thank you very much!
>
>
>
>  -- output of sessionInfo():
>
> library(GenomicFeatures)
> library(Rsamtools)
>
> commands used: makeTranscriptsDbfromUCSC
>                           saveFeatures("ensGene.sqlite")
>                           loadFeatures("ensGene.sqlite")
>
>
> --
> Sent via the guest posting facility at bioconductor.org.
>
> _______________________________________________
> Bioconductor mailing list
> Bioconductor@r-project.org
> https://stat.ethz.ch/mailman/listinfo/bioconductor
> Search the archives:
> http://news.gmane.org/gmane.science.biology.informatics.conductor
>

	[[alternative HTML version deleted]]