phosphopeptide pI and Mr calculation
echristo at biology.db.uoa.gr
Tue Oct 12 03:40:55 EST 1999
In article <7tud7i$1luk$1 at newssvr04-int.news.prodigy.com> , "PAUL MACLEAN"
<PM.MACLEAN at prodigy.net> wrote:
> Does anyone know an internet resource that will calculate pI and Mr of
> phosphorylated peptides?
> If not, does anyone know the relative pKa's of the two hydrates oxygen
> molecules of an attached phosphate? I can calculate the pI and Mr by hand
> if needs be, but I need this information to do so.
> Can anyone point me in the right direction? I've checked Pedro's
> biomolecular tools. Most programs I have found do not handle
> posttranslationally altered amino acids in their pI calculation.
> Thank you,
> Paul MacLean
For the pI:
For the pKa:
Hope this helps.
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