[DIYbio] Re: Simple His-tag purification

Simplified in which way?
You can do hig-tag purification without a column: with tubes and a centrifuge it works just fine

On Tuesday, 17 January 2017 15:50:53 UTC+1, CoreyHowe wrote:
A friend and I were talking about a simplified His-tag purification protocol for a peptide we'd like to produce and use, and I wanted to see what other people thought of it's feasibility. 

Instead of applying the cell lysate to a nickel column, first add nickel powder ($5 on ebay) to the lysate in a tube and mix, once properly mixed then apply a strong magnet to the outside of the tube to attract the nickel bound to the his-tag, pour off the excess lysate, lower the pH with an acid to elute the peptide from the nickel, and finally transfer to a new tube. 

Could this be feasible? 


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