Histidine mapping of serine protease: a synergic study by IMAC and molecular modelling.


The immobilized metal ion affinity (IMA) interaction of different serine proteases, namely porcine and bovine trypsins and BPN' and Carlsberg subtilisins, was studied on Sepharose-IDA-CuII. Both trypsins were resolved into their different subspecies, whereas the subtilisins appeared as only one species. The use of diethyl pyrocarbonate-modified enzymes… (More)


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