[Bioperl-l] retrieven ids

[Luba Pardo]

Hi everyone,
I wonder if someone could give an advice of the following:
I want to retrieve the DNA coding sequence of a RefSeq protein id. I do not
want to translate the protein back to DNA, but rather get the DNA coding
sequence ID and then retrieve the DNA sequence from Gen Bank. Is there any
module that allow to get all possible ids for a sequence given a gi protein
?

Thank you very much in advance,
L. Pardo