CathepsinsCathepsin BCathepsin DCathepsin LEnzyme PrecursorsCathepsin KCysteine EndopeptidasesCathepsin GCathepsin HCathepsin ECathepsin CCathepsin FCathepsin ZCathepsin WLysosomesCathepsin APepstatinsCystatinsEndopeptidasesCysteine Proteinase InhibitorsDiazomethaneDipeptidesSerine EndopeptidasesProtease InhibitorsPapainCystatin BCysteine ProteasesCystatin APancreatic ElastaseLeukocyte ElastaseAmino Acid SequenceMolecular Sequence DataHydrogen-Ion ConcentrationPapillon-Lefevre Disease