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. 2011 Dec 3;35(2):94–103. doi: 10.1007/s12639-011-0084-x

Table 2.

Inhibitory kinetics of vivapains and falcipains (Table has been taken from Na et al. 2004)

kass (M−1 s−1)a
Vivapain-2 Vivapain-3 Falcipain-2 Falcipain-3
E-64 2,31,000 ± 17,700 5,690 ± 588 14,200 ± 475 5,870 ± 428
Z-Phe-Arg-FMK 47,900 ± 5,090 3,680 ± 218 2,41,000 ± 20,100 60,200 ± 6,740
Mu-Phe-hPhe-FMK 61,700 ± 6,180 540 ± 60 2,15,000 ± 5,760 5,26,000 ± 59,300
Mu-Leu-hPhe-FMK 4,50,000 ± 16,800 79,200 ± 6,490 9,24,000 ± 26,200 58,50,000 ± 15,800
Mu-Phe-hPhe-VSph 267 ± 14 NAb 4,890 ± 231 2,060 ± 41
Mu-Leu- hPhe-VSph 88,200 ± 470 4,970 ± 370 1,02,000 ± 2,530 22,000 ± 1,420
Nmetpip-Phe-hPhe-VSPh 96 ± 5 15 ± 004 1,230 ± 136 1,900 ± 43
Nmetpip-Leu-hPhe-VSPh 53,600 ± 6,450 2,130 ± 158 26,300 ± 3,700 11,900 ± 762

Mu morpholine urea, hPhe homophenylalanine, NmetpipN-methylpiperazine urea, VSPh phenylvinylsulphone

aGeometric mean ± SEM

bNo appreciable activity