I am looking a protocol for biotinylation of the protein. I have purified the crude protein from the cell lysate. Does any body have protocol for the same. I don't want to use any kit methods.
The "instruction" documents for NHS-Biotin and its other derivatves give a general protocol for biotinlation based soley on the molecular weight and concentration of the protein in solution.
We use NHS-Biotin regularly for biotinylation in a molar ration of 1:25 and get very good results. It is a very simple protocol. I can send you a detailed protocol if you send me an email at [email protected]