Isoelectric points?

Keith Robison robison at nucleus.harvard.edu
Tue Feb 28 18:21:47 EST 1995

James McIninch (james at gatech.edu) wrote:
: I'm looking for a utility, or code fragment, that estimates the isoelectric
: points of proteins from IUPAC (single-character) amino acid sequences.

: I tried looking for the protein in all of the different protein databases
: available for the net to see if I couldn't find a reference to the IP there,
: but no luck. I have the aa sequence, now all I need is the code (I could
: always write it, but no need to reinvent the wheel).

If the protein is in SwissProt, then the ExPASy WWW server will calculate
the predicted pI and molecular weight for you.  

Most commercial packages have a pI calculator buried somewhere in the

Keith Robison
Harvard University
Department of Cellular and Developmental Biology
Department of Genetics / HHMI

robison at mito.harvard.edu 

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