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Re: [ccp4bb] DTT sensitive? |
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CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999Subject: 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 > CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999 |
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