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Mass spectroscopic analysis of the mature peptide of rtCATH_1. The mature peptide was generated from elastase digestion of the recombinant rtCATH_1 proprotein with a six-His tag at the C terminus and was recovered from the 4 to 12% polyacrylamide gel after separation. The mass of the peptide was determined by MALDI mass spectrometry to be 8,214.42 Da.
