Quick navigation: Home   |    Site Map   ||    References   |    Biography   ||    Copyright   |    Other copyright   |    Contact us   |    Advert   |   
 

Re: [ccp4bb] DTT sensitive?

- Protein crystallography

Main steps:

   - Protein purification
   - Crystallisation

Special:

   - Programs for crystallography
   - X-ray detectors

Basic tutorials:

   - Chemistry
   - Protein
   - Peptide
   - Amino Acids

Xtal community:

   - CCP4BB

CCP4bb navigation

CCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999
Previous message:
Subject: Re: DTT sensitive?
From: "Sanishvili, Ruslan" rsanishvili {- at -} ANL {- dot -} GOV
Date: 2007-11-13
Next message:
Subject: Re: DTT sensitive?
From: Joe zzjsail {- at -} GMAIL {- dot -} COM
Date: 2007-11-13


Subject: Re: DTT sensitive?
From: Jacob Keller j-keller2 {- at -} MD {- dot -} NORTHWESTERN {- dot -} EDU
Date: 2007-11-13

Did you check the pH of your DTT and the protein solution before and after?
I have had some experience with DTT changing pH (as might well be
expected...).

Jacob

*******************************************
Jacob Pearson Keller
Northwestern University
Medical Scientist Training Program
Dallos Laboratory
F. Searle 1-240
2240 Campus Drive
Evanston IL 60208
lab: 847.467.4049
cel: 773.608.9185
email: j-keller2@northwestern.edu
*******************************************

----- Original Message -----
From: "Joe"
To:
Sent: Tuesday, November 13, 2007 2:30 PM
Subject: [ccp4bb] DTT sensitive?


> Hi there,
> I see enormous precipitate of my receptor protein when I take it out
> of freezer. But all the precipitate dissolved quickly after I added
> 1mM DTT to the solution. Does this mean that some surface Cys are
> causing problem? Or why is the protein so sensitive to DTT?
> Anybody experienced this kind?
> Any advice is appreciated.
> -Joe
>




ProteinCrystallography.org: Copyright 2006-2010 by Quid United Ltd