Keywords: PDB 1stf EBI.jpg Alpha and beta proteins a+b Cysteine proteinases Cysteine proteinases Papain-like Papain Alpha and beta proteins a+b Cystatin-like Cystatin or monellin Cystatins Cystatin B stefin B EBI License 1stf November 16 2008 Papain Files uploaded by Nichalp's script |