[Bioperl-l] Retrieving upstream & downstream sequences

Ross KK Leung ross at cuhk.edu.hk
Mon Jun 14 08:48:28 EDT 2010

If I have an accession number for an mRNA/cDNA/gene (e.g.
http://www.ncbi.nlm.nih.gov/nuccore/51980295), I find sometimes if I
retrieve the genbank file and parse /dbxref then I may sometimes be able to
get some extra information but then the page is not readily usable, e.g.


is there any way to automatically retrieve its upstream & downstream genomic
sequence (e.g. 500bp)?

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