e –7.41 3.7 µM Glu193, Leu192, Gln191, Met190, Ser189, Glu185, Tyr184, Gly183, Gly182, Gln132 –9.1 212.78 nM Thr254, Arg216, Trp217, Arg275, Phe218, Lys260, Gln256, Leu268, Arg267, Lys270 –109.22 –100.63 –8.59 0 Arg294, Gln295, Ile140, Glu291, Glu152, Gly122, Ala115, Ser123, Met6, Gln8, Ala7, Ser110, Phe111, Val150, Asn112, Tyr149 7. Viscosalactone B –7.34 4.14 µM Leu192, Gly167, Leu166, Glu165, Leu164, Gln191,