getting part of a protein sequence - finding protein domain sequences (Aug/01/2008 )

where can I go to retrieve sections of a protein sequence?
input: for example(DNA binding domain at: 8-49 )
output: DNA binding domain sequence

Thanks so much!

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http://genenformics.com/SeqLoc2Fasta.html
It can process any portion of any GenBank id.
eg:
[~/projects/SeqLoc2Fasta $] ./SeqLoc2Fasta.exe NC_000001:11174150-11174549,NM_ 005252,P23457:123-234

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