>1QWX_1|Chains A, B|cysteine protease|Staphylococcus aureus subsp. aureus (196620) MYQLQFINLVYDTTKLTHLEQTNINLFMGNWSNHQLQKSICIRHGDDTSHNQYHILFIDTAHQRIKFSSIDNEEIIYILDYDDTQHILMQTSSKQGIGTSRPIVYERLV