MADISON, Wis.--(BUSINESS WIRE)--The recently released Promega HaloTag® Protein Purification System addresses common problems associated with purification of recombinant proteins by enabling the delivery of soluble, functional recombinant target proteins at higher yield and purity. The HaloTag Protein Purification System consistently delivers soluble protein and outperforms the most commonly used protein tags like His6Tag, GST, and MBP.