Table I Significant atomic distances (Å) of different catalytic site residues of cysteine proteases with selected inhibitors at S1 - P1 site
E-64 & Protease | Papain Caricain | Chymo | Actinidin | Calotropin | |
|---|---|---|---|---|---|
[19] | [21] | papain | [20] | DI | |
O5.....66(Gly):N | 2.88 | 2.78 | - | 2.92 | 3.37 |
N10.....66(Gly):O | 3.04 | 2.94 | 3.23 | 2.91 | 3.49 |
N6.....158(Asp):O | 3.27 | 3.58 | 3.15 | 3.60 | |
O18.....159(His):ND1 | 2.90 | 2.88 | 2.76 | 2.80 | 3.10 |
O17.....19(Gln):NE2 | 2.87 | 2.74 | 2.88 | 2.91 | 3.22 |
O17.....25(Cys):N | 2.95 | 3.01 | 3.05 | 2.94 | 3.54 |
O17.....25(Cys):SG | 3.36 | 3.33 | 3.24 | 2.81 | |
E-64-C & Protease | Papain | Caricain | Chymo | Actinidin | Calotropin |
[33] | Papain | DI | |||
O5...66(Gly):N | 3.16 | 2.88 | 3.28 | 3.05 | 3.21 |
N10...66(Gly):O | 3.46 | - | 3.30 | 3.64 | - |
O17...19(Gln):NE2 | 2.90 | 3.35 | 3.12 | 3.25 | 3.18 |
O17...25(Cys):N | 2.75 | 3.20 | 3.11 | 2.36 | 2.84 |
O17...25(Cys):SG | 2.61 | 3.35 | 3.01 | 3.08 | 2.79 |
O18...159(His):ND1 | 3.76 | 3.38 | 3.32 | 3.56 | 3.39 |
N6...158(Asp):O | 2.99 | 3.17 | 3.27 | 3.43 | 3.40 |
Leupeptin & Protease | Papain | Caricain | Chymo | Actinidin | Calotropin |
[34] | Papain | DI | |||
2 Leu:N...66(Gly):O | 3.05 | 3.14 | 3.50 | 3.24 | 3.29 |
2 Leu:O...66(Gly):N | 2.78 | 3.17 | 3.13 | 3.09 | 3.07 |
3 Arg:N...25(Cys):SG | 3.01 | 3.06 | 3.26 | 3.22 | 3.02 |
3 Arg:N...158(Asp):O | 3.03 | 2.69 | 3.09 | 2.80 | 2.93 |
3 Arg:O...19(Gln):NE2 | 2.88 | 3.17 | 3.21 | 3.17 | 3.18 |
3 Arg:O...25(Cys):SG | 2.62 | 2.65 | 2.66 | 2.71 | 2.56 |
3 Arg:O...25(Cys):N | 3.00 | 3.28 | 3.50 | 3.16 | 3.46 |
ZPACK & Protease | Papain | Caricain | Chymo | Actinidin | Calotropin |
[30] | papain | DI | |||
N11...66(Gly):O | 2.84 | 2.98 | - | 2.85 | 3.61 |
O8...66(Gly):N | 2.96 | 3.10 | 3.29 | 3.10 | 2.85 |
O3...25(Cys):N | 3.61 | 3.25 | 3.40 | 2.85 | 3.84 |
O3...25(Cys):SG | 3.30 | 3.45 | 3.18 | 3.05 | 3.28 |
O3...19(Gln):NE2 | 3.56 | 3.36 | 3.60 | 3.36 | 3.20 |