Re: [ccp4bb] very high concentration of protein

2009-07-02 Thread Filip Van Petegem
Dear Peter, it's a common phenomenon to create protein concentration gradients inside a protein concentrator. Simply take it all out of the concentrator, put it in a separate tube, and mix thoroughly/vortex. The 'slime' may very well redissolve and you'll a homogeneous distribution. What you des

Re: [ccp4bb] very high concentration of protein

2009-07-02 Thread Artem Evdokimov
day, July 02, 2009 10:53 AM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] very high concentration of protein Hello all I am working with a small protein-protein complex. This complex express quite well . I purify in a buffer of pH=9.0 with 150mM NaCl and 1% of glycerol and able to concentrate u

[ccp4bb] very high concentration of protein

2009-07-02 Thread peter hudson
Hello all I am working with a small protein-protein complex. This complex express quite well . I purify in a buffer of pH=9.0 with 150mM NaCl and 1% of glycerol and able to concentrate upto 20 mg per ml. I have a two clones of this protein complex. One is N-terminal His tagged and another C-termin