[Bioperl-l] aminoacid properties of a sequence

[luisa pugliese]

Hi bioperlers,
    I am looking for a method to link somehow the residue number present in
the pdb file to the aminoacids of its sequence, so that when I put the
sequence into an alignment and I slice the alignment, I can retrieve which
are the residue numbers of the aminoacid present in the sliced alignment.
Does anybody knows if there is a clean method to do this instead of writing
some perl code?
Thank you to all
Luisa
=============================
Luisa Pugliese, Ph.D.
luisa.pugliese at safan-bioinformatics.it
S.A.F.AN. BIOINFORMATICS
Corso Tazzoli 215/13 -10137 Torino - ITALY
tel +39 011 3026230
cell. +39 333 6130644