Activation mechanism of pro-astacin: role of the pro-peptide, tryptic and autoproteolytic cleavage and importance of precise amino-terminal processing. by Yiallouros, I, Kappelhoff, R, Schilling, O, Wegmann, F, Helms, M, Auge, A, Brachtendorf, G, Berkhoff, E, Beermann, B, Hinz, H, König, S, Peter-Katalinic, J, Stöcker, W