pk of Threonin

Reno T. Nguyen reno at cbl.umces.edu
Thu Jun 3 11:19:52 EST 1999


Hi,

Check out the URL address http://www.proteometrics.com/aainfo/contents.htm
You'll find info on the pKa values for the side chains of amino acids that
ionize.  Threonine's hydroxy side chain does not ionize. You won't find
any pKa value for Thr, other than for its alpha amino and carboxyl groups.
Only the side chains of the following amino acids will ionize: 

Arg (guanido group)
Asp (beta carboxylic acid)
Cys (sulfhydryl) 
Glu (gamma carboxylic acid)
His (imidazole)
Lys (epsilon amino group)
Tyr (phenol) 


Reno Nguyen


On Thu, 3 Jun 1999, Steffen Schmidt wrote:

> Date: Thu, 03 Jun 1999 07:49:30 +0200
> From: Steffen Schmidt <sschmid2 at Uni-MolGen.gwdg.de>
> Newsgroups: bionet.molbio.proteins
> Subject: pk of Threonin
> 
> Hi,
> 
> does anyone know the pk-value of the hydroxy-group of threonin, or a
> citation where I can find it.
> 
> Thanks, Steffen
> 


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Reno T. Nguyen
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