M1 DKRHE7 VIALY8 VIAL9 IV10 IVL11 G12 AGS13 G14 G17 AG21 LAI24 GDN30 VIT34 VLI36 LIVFY37 ED38 GNKD189 VIAL197 IVLFA200 VILA211 GED216 VLI224 VILF225 ACTSG227 GP229 GD347 GSA360 GAVS368 LIVAM375 YFLW388 GN477 # found 32 key residues