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:
http://www.embl-heidelberg.de/cgi/pi-wrapper.pl
For the pKa:
http://www.embl-heidelberg.de/ExternalInfo/wade/pub/soft/pka.html
Hope this helps.
E.
--
Evangelos Christodoulou
University of Athens, Greece
If Che Guevara was alive he'd use a Mac
-the only revolutionary-friendly platform
