8.6 447.56 nM Gln218, Phe59, Gly219, Phe220, Thr33, Asp287, Phe58, Val289, Ser297, Lys300, Asp294, Leu296, Asn606, Leu293 –84.45 –66.52 17.93 0 Thr430, Asp428, Phe515, Ser514, Glu516