Knight:Purification of His-tagged proteins/Denaturing: Difference between revisions

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===Notes===
===Notes===
*Solid urea to make up an 8M solution takes up a lot of volume so be conservative on how much H <sub>2</sub>O you start with (maybe 50% of final volume)
*Solid urea to make up an 8M solution takes up a lot of volume so be conservative on how much H <sub>2</sub>O you start with (maybe 50% of final volume)
*When initially made up the solution had a pH of 5.88.
*The lysis buffer requires many drops of 5M NaOH (tens) to bring to pH 8.0.
*The elution buffer only needs a little (few drops) of 1M HCl to bring to pH 4.5.
*Kathleen suggested supplementing the lysis buffer with 10mM imidazole to prevent nonspecific protein binding to the column.
*Kathleen suggested supplementing the lysis buffer with 10mM imidazole to prevent nonspecific protein binding to the column.


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