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What portion of protein can I get under this protocol? - (Sep/15/2010 )

Hi! everybody:
I use tissue lysis buffer as 10mM Tris-HCl pH 8, NaCl 150mM, EDTA 1mM, nonidet P40 1%, SDS 0.1%, and 1X protease inhibitor cocktail. I mix lysis buffer and tissue together and crush tissue with pestle. Then, incubate the mixture on ice for 10 mins, freeze mixture at -70 degrees C, and thaw the mixture on ice again. After spin tissue debris down at 13000rpm, 5 mins. What portion of protein can I get? Only cytosol protein or both cytosol protein and nuclear protein? Thank you!

-eaton-

both nuclear and cytoplasmic I would say, based on the lysis buffer recipe. You still won't get the insoluble proteins though

-bob1-

bob1 on Thu Sep 16 02:28:00 2010 said:


both nuclear and cytoplasmic I would say, based on the lysis buffer recipe. You still won't get the insoluble proteins though



Thank you!!
And how can I adjust my lysis buffer to get these insoluble protein? Or I need another buffer to get the insoluble protein after this procedure? Thank you!

-eaton-

bob1 on Thu Sep 16 02:28:00 2010 said:


both nuclear and cytoplasmic I would say, based on the lysis buffer recipe. You still won't get the insoluble proteins though


Furthermore, if I want to separate the nuclear and cytoplasmic protein, what procedure can I do?
Should I use a different lysis buffer and different protocol?
Or can I do something after I getting these nuclear and cytoplasmic protein?
Thank you!

-eaton-