Endoproteinase Lys-C
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Endoproteinase Lys-C is a protease that cleaves proteins on the C-terminal side of lysine residues. This enzyme is naturally found in the bacterium Lysobacter enzymogenes and is commonly used in protein sequencing.[1][2] Lys-C activity is optimal in the pH range 7.0 - 9.0.[3]