I am trying to purify alpha synuclein protein from E.coli BL21(DE3) cells. The plasmid is pET21a alpha-synuclein. Can anyone help me with the protocol.
Have you checked the whole genome map of it.. Because when I procured from Addgene ..PET21a thinking of His Tag in the sequence..But it was not..His Tag was after the stop codon..Do check it first...And try Ammonium sulphate precipitate method(you will get many paper of Samir Maji) followed by Size Exclusion chromatography..