s89, Thr158 –10.4 22.51 nM His89, Thr158, Gly160, Asn109,Gln269, Leu162, Val159 –104.57 –96.14 –8.43 0 Thr158, Leu162, Glu161, Gly160, His89, Asp108, Ser85, Ala86, Gly160, Val159