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Figure 2: Propeptide interaction with the catalytic domain through a conserved cysteine residue (c) and the Zn2+ ion in the catalytic pocket (the so-called cysteine switch)

Figure 2: Propeptide interaction with the catalytic domain through a conserved cysteine residue (c) and the Zn<sup>2</sup>+ ion in the catalytic pocket (the so-called cysteine switch)