| Active Site Views 
        Push the button  
        Push buttonAla342, Arg119, Arg153, Arg395, Asn115,
        Asn352, Asp307, Asp311, Gly340, His339, Ser113, Thr338, Thr341,
        Tyr160, Tyr391, and three water molecules
       | Active Site Views 
        Push the button  
        Push buttonAla342, Arg119, Arg153, Arg395, Asn115,
        Asn352, Asp307, Asp311, Gly340, His339, Ser113, Thr338, Thr341,
        Tyr160, Tyr391, and four water molecules
       |