[BioC] R Package for retrieving sequence features

[Wuming Gong]

Dear list,

I want to retrieve the sequence features, such as start/end position
of UTR and CDS, according to given genbank accession numbers.  I found
that several R functions have the ability to retrieve the sequences
alone from genbank, such as getSEQ() from annotate package,
read.GenBank() from apt package (not in Bioconductor) and seqNCBI()
from GeneR package, but none of them could retrieve the information on
sequence features.

Is there any R package that can retrieve the sequence features (just
like get_SeqFeatures() function in BioPerl)?

Thanks,

Wuming