- Protein crystallography
Main steps: - Protein purification - Crystallisation
Special: - Programs for crystallography - X-ray detectors
Basic tutorials: - Chemistry - Protein - Peptide - Amino Acids
Xtal community: - CCP4BB
|
Subject: Ni-NTA purifications contaminated with E coli Glucosamine-fructose-6-phosphate aminotransferase From: Ailong Ke ak425 {- at -} CORNELL {- dot -} EDU Date: 2007-11-02
>Hello,
We are trying to purify an N-terminal His6-tagged protein from E. coli, and the prep was contaminated with the E coli Glucosamine-fructose-6-phosphate aminotransferase, which co-purifies with my protein of interest in subsequent ion-exchange and sizing columns. This protein appears to be a common contamination in the Ni-NTA purifications. Does anyone have tricks to get rid of it? Thanks.
Ailong
--
|