% IDENTITY QUESTION

Chris Sinclair sinclair at biochem.purdue.edu
Thu Jul 23 17:12:22 EST 1998


O.K. this is a really simple one. I need to calculate the % identity of
some peptides (10 to 19 residues) to a much longer sequence (499 aa). If
the peptide is 10 aa long and has 3 exact matches do I divide by 10 (the
length of potential identity for peptide) or divide by the total length
of the protein. I personally vote for the first calculation but I've met
resistance from my fellow lab mates. Anyone care to clear up our debate?

Thanks,

Chris

sinclair at biochem.purdue.edu





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