HEADER PROTEASE INHIBITOR 14-SEP-04 1W7Z TITLE CRYSTAL STRUCTURE OF THE FREE (UNCOMPLEXED) ECBALLIUM ELATERIUM TITLE 2 TRYPSIN INHIBITOR (EETI-II) COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRYPSIN INHIBITOR II; COMPND 3 CHAIN: A, B, C, D, E, F, G, H; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 1; COMPND 6 TRYPSIN INHIBITOR II; COMPND 7 CHAIN: A, B, C, D, E, F, G, H; COMPND 8 ENGINEERED: YES; COMPND 9 MOL_ID: 1; COMPND 10 TRYPSIN INHIBITOR II; COMPND 11 CHAIN: A, B, C, D, E, F, G, H; COMPND 12 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 1.67 ANGSTORMS DBREF 1W7Z C 1 31 UNP P12071 ITR2_ECBEL 1 31 DBREF 1W7Z D 1 31 UNP P12071 ITR2_ECBEL 1 31 DBREF 1W7Z F 1 31 UNP P12071 ITR2_ECBEL 1 31 SEQRES 1 D 28 GLY CYS PRO ARG ILE LEU ILE ARG CYS LYS GLN ASP SER SEQRES 2 D 28 ASP CYS LEU ALA GLY CYS VAL CYS GLY PRO ASN GLY PHE SEQRES 3 D 28 CYS GLY ATOM 1 NA NA C1032 6.425 6.305 1.650 1.00 25.58 TER ATOM 1 N GLY D 1 2.204 7.362 14.623 1.00 40.54 ATOM 2 CA GLY D 1 3.077 8.573 14.645 1.00 38.84 ATOM 3 C GLY D 1 4.059 8.582 13.492 1.00 38.00 ATOM 4 O GLY D 1 4.186 7.581 12.777 1.00 39.48 ATOM 5 N CYS D 2 4.718 9.721 13.291 1.00 35.39 ATOM 6 CA CYS D 2 5.659 9.856 12.192 1.00 32.91 ATOM 7 C CYS D 2 7.033 10.004 12.810 1.00 31.17 ATOM 8 O CYS D 2 7.215 10.869 13.643 1.00 31.42 ATOM 9 CB CYS D 2 5.305 11.080 11.373 1.00 33.24 ATOM 10 SG CYS D 2 6.507 11.486 10.029 1.00 32.15 ATOM 11 N PRO D 3 8.013 9.208 12.374 1.00 26.99 ATOM 12 CA PRO D 3 9.361 9.379 12.925 1.00 27.22 ATOM 13 C PRO D 3 9.924 10.786 12.715 1.00 25.97 ATOM 14 O PRO D 3 9.657 11.402 11.673 1.00 26.79 ATOM 15 CB PRO D 3 10.196 8.418 12.095 1.00 27.03 ATOM 16 CG PRO D 3 9.211 7.448 11.511 1.00 27.23 ATOM 17 CD PRO D 3 7.961 8.158 11.345 1.00 26.79 ATOM 18 N ARG D 4 10.780 11.249 13.618 1.00 26.07 ATOM 19 CA ARG D 4 11.179 12.644 13.641 1.00 26.94 ATOM 20 C ARG D 4 12.564 12.825 12.959 1.00 25.09 ATOM 21 O ARG D 4 13.375 13.654 13.326 1.00 23.62 ATOM 22 CB ARG D 4 11.130 13.192 15.079 1.00 29.02 ATOM 23 CG ARG D 4 9.711 13.147 15.633 1.00 34.52 ATOM 24 CD ARG D 4 9.289 14.439 16.313 1.00 42.02 ATOM 25 NE ARG D 4 10.023 14.552 17.533 1.00 45.24 ATOM 26 CZ ARG D 4 10.234 15.658 18.248 1.00 46.11 ATOM 27 NH1 ARG D 4 9.785 16.871 17.874 1.00 47.54 ATOM 28 NH2 ARG D 4 10.949 15.526 19.342 1.00 43.70 ATOM 29 N ILE D 5 12.765 12.069 11.883 1.00 24.53 ATOM 30 CA ILE D 5 13.904 12.234 10.938 1.00 22.10 ATOM 31 C ILE D 5 13.472 13.238 9.886 1.00 21.56 ATOM 32 O ILE D 5 12.384 13.131 9.353 1.00 22.58 ATOM 33 CB ILE D 5 14.211 10.891 10.256 1.00 22.50 ATOM 34 CG1 ILE D 5 14.492 9.774 11.313 1.00 24.92 ATOM 35 CG2 ILE D 5 15.343 11.020 9.306 1.00 24.56 ATOM 36 CD1 ILE D 5 14.372 8.356 10.775 1.00 28.55 ATOM 37 N LEU D 6 14.331 14.203 9.586 1.00 20.05 ATOM 38 CA LEU D 6 13.975 15.256 8.648 1.00 17.79 ATOM 39 C LEU D 6 14.203 14.647 7.248 1.00 17.81 ATOM 40 O LEU D 6 15.320 14.297 6.872 1.00 18.05 ATOM 41 CB LEU D 6 14.802 16.553 8.782 1.00 19.07 ATOM 42 CG LEU D 6 14.483 17.342 10.043 1.00 21.85 ATOM 43 CD1 LEU D 6 15.150 18.680 9.976 1.00 23.66 ATOM 44 CD2 LEU D 6 13.014 17.522 10.226 1.00 28.81 ATOM 45 N ILE D 7 13.143 14.638 6.469 1.00 17.96 ATOM 46 CA ILE D 7 13.154 14.106 5.102 1.00 18.29 ATOM 47 C ILE D 7 12.343 15.061 4.246 1.00 18.90 ATOM 48 O ILE D 7 11.193 15.362 4.559 1.00 20.61 ATOM 49 CB ILE D 7 12.530 12.687 5.034 1.00 18.48 ATOM 50 CG1 ILE D 7 13.172 11.766 6.058 1.00 19.21 ATOM 51 CG2 ILE D 7 12.496 12.181 3.576 1.00 18.72 ATOM 52 CD1 ILE D 7 12.601 10.305 6.026 1.00 20.56 ATOM 53 N ARG D 8 12.930 15.529 3.150 1.00 17.98 ATOM 54 CA ARG D 8 12.206 16.363 2.235 1.00 18.40 ATOM 55 C ARG D 8 11.334 15.538 1.297 1.00 18.06 ATOM 56 O ARG D 8 11.623 14.379 1.019 1.00 18.97 ATOM 57 CB ARG D 8 13.146 17.231 1.459 1.00 20.56 ATOM 58 CG ARG D 8 13.836 18.270 2.275 1.00 23.45 ATOM 59 CD ARG D 8 14.626 19.224 1.345 1.00 28.36 ATOM 60 NE ARG D 8 15.201 20.361 2.079 1.00 33.29 ATOM 61 CZ ARG D 8 14.639 21.564 2.183 1.00 36.62 ATOM 62 NH1 ARG D 8 13.459 21.838 1.632 1.00 37.46 ATOM 63 NH2 ARG D 8 15.291 22.521 2.852 1.00 39.53 ATOM 64 N CYS D 9 10.242 16.131 0.814 1.00 18.54 ATOM 65 CA CYS D 9 9.289 15.385 0.020 1.00 19.29 ATOM 66 C CYS D 9 8.526 16.293 -0.920 1.00 20.18 ATOM 67 O CYS D 9 8.465 17.514 -0.729 1.00 21.73 ATOM 68 CB CYS D 9 8.313 14.704 0.966 1.00 20.15 ATOM 69 SG CYS D 9 7.485 15.811 2.180 1.00 21.37 ATOM 70 N LYS D 10 7.937 15.679 -1.935 1.00 21.31 ATOM 71 CA LYS D 10 6.986 16.352 -2.835 1.00 21.62 ATOM 72 C LYS D 10 5.579 15.798 -2.664 1.00 20.60 ATOM 73 O LYS D 10 4.624 16.519 -2.865 1.00 22.40 ATOM 74 CB LYS D 10 7.430 16.093 -4.281 1.00 22.29 ATOM 75 CG LYS D 10 6.513 16.581 -5.426 1.00 29.41 ATOM 76 CD LYS D 10 6.628 18.033 -5.733 1.00 33.79 ATOM 77 CE LYS D 10 5.857 18.394 -7.025 1.00 34.31 ATOM 78 NZ LYS D 10 4.603 18.791 -6.521 1.00 39.28 ATOM 79 N GLN D 11 5.449 14.541 -2.280 1.00 21.80 ATOM 80 CA GLN D 11 4.154 13.911 -2.079 1.00 20.67 ATOM 81 C GLN D 11 4.225 12.923 -0.907 1.00 19.50 ATOM 82 O GLN D 11 5.284 12.532 -0.454 1.00 18.45 ATOM 83 CB GLN D 11 3.670 13.194 -3.341 0.50 22.77 ATOM 84 CG GLN D 11 4.690 12.324 -4.042 0.50 25.13 ATOM 85 CD GLN D 11 4.194 11.771 -5.372 0.50 29.98 ATOM 86 OE1 GLN D 11 4.546 10.653 -5.752 0.50 30.14 ATOM 87 NE2 GLN D 11 3.418 12.560 -6.103 0.50 28.28 ATOM 88 N ASP D 12 3.070 12.538 -0.417 1.00 19.65 ATOM 89 CA ASP D 12 2.964 11.815 0.837 1.00 18.61 ATOM 90 C ASP D 12 3.700 10.488 0.753 1.00 20.55 ATOM 91 O ASP D 12 4.313 10.052 1.716 1.00 21.02 ATOM 92 CB ASP D 12 1.525 11.558 1.248 1.00 20.65 ATOM 93 CG ASP D 12 0.746 12.821 1.556 1.00 18.29 ATOM 94 OD1 ASP D 12 1.301 13.975 1.653 1.00 21.33 ATOM 95 OD2 ASP D 12 -0.481 12.667 1.729 1.00 21.95 ATOM 96 N SER D 13 3.618 9.851 -0.389 1.00 20.75 ATOM 97 CA SER D 13 4.248 8.555 -0.553 1.00 22.11 ATOM 98 C SER D 13 5.783 8.579 -0.449 1.00 21.93 ATOM 99 O SER D 13 6.418 7.504 -0.227 1.00 22.42 ATOM 100 CB SER D 13 3.833 7.905 -1.836 1.00 22.57 ATOM 101 OG SER D 13 4.209 8.609 -2.989 1.00 25.08 ATOM 102 N ASP D 14 6.379 9.770 -0.532 1.00 20.44 ATOM 103 CA ASP D 14 7.819 9.920 -0.345 1.00 19.38 ATOM 104 C ASP D 14 8.257 9.647 1.106 1.00 19.86 ATOM 105 O ASP D 14 9.427 9.451 1.346 1.00 19.35 ATOM 106 CB ASP D 14 8.252 11.322 -0.699 1.00 21.81 ATOM 107 CG ASP D 14 8.087 11.665 -2.158 1.00 22.21 ATOM 108 OD1 ASP D 14 7.899 10.762 -2.982 1.00 26.33 ATOM 109 OD2 ASP D 14 8.113 12.906 -2.491 1.00 24.25 ATOM 110 N CYS D 15 7.300 9.715 2.045 1.00 19.51 ATOM 111 CA CYS D 15 7.540 9.707 3.508 1.00 18.99 ATOM 112 C CYS D 15 7.463 8.317 4.112 1.00 20.30 ATOM 113 O CYS D 15 6.890 7.427 3.506 1.00 25.07 ATOM 114 CB CYS D 15 6.584 10.654 4.160 1.00 20.39 ATOM 115 SG CYS D 15 6.796 12.348 3.634 1.00 19.72 ATOM 116 N LEU D 16 7.924 8.125 5.332 1.00 19.48 ATOM 117 CA LEU D 16 7.845 6.821 5.954 1.00 20.65 ATOM 118 C LEU D 16 6.411 6.592 6.424 1.00 21.82 ATOM 119 O LEU D 16 5.584 7.542 6.427 1.00 22.12 ATOM 120 CB LEU D 16 8.781 6.794 7.156 1.00 20.57 ATOM 121 CG LEU D 16 10.279 6.937 6.808 1.00 23.21 ATOM 122 CD1 LEU D 16 11.054 7.181 8.035 1.00 24.00 ATOM 123 CD2 LEU D 16 10.801 5.760 6.074 1.00 25.81 ATOM 124 N ALA D 17 6.101 5.384 6.855 1.00 23.47 ATOM 125 CA ALA D 17 4.770 5.050 7.374 1.00 26.04 ATOM 126 C ALA D 17 4.356 5.941 8.524 1.00 26.27 ATOM 127 O ALA D 17 5.115 6.212 9.458 1.00 25.51 ATOM 128 CB ALA D 17 4.748 3.624 7.823 1.00 26.51 ATOM 129 N GLY D 18 3.133 6.417 8.468 1.00 27.27 ATOM 130 CA GLY D 18 2.679 7.294 9.498 1.00 27.47 ATOM 131 C GLY D 18 2.816 8.755 9.198 1.00 27.33 ATOM 132 O GLY D 18 2.401 9.567 10.039 1.00 29.80 ATOM 133 N CYS D 19 3.416 9.091 8.050 1.00 26.26 ATOM 134 CA CYS D 19 3.751 10.461 7.710 1.00 25.54 ATOM 135 C CYS D 19 3.062 10.924 6.419 1.00 24.91 ATOM 136 O CYS D 19 2.677 10.101 5.556 1.00 27.87 ATOM 137 CB CYS D 19 5.257 10.582 7.490 1.00 26.06 ATOM 138 SG CYS D 19 6.280 9.939 8.752 1.00 29.64 ATOM 139 N VAL D 20 2.882 12.252 6.313 1.00 21.93 ATOM 140 CA VAL D 20 2.418 12.904 5.100 1.00 21.96 ATOM 141 C VAL D 20 3.441 14.010 4.763 1.00 20.89 ATOM 142 O VAL D 20 4.228 14.417 5.617 1.00 20.28 ATOM 143 CB VAL D 20 1.027 13.547 5.264 1.00 22.24 ATOM 144 CG1 VAL D 20 0.024 12.483 5.555 1.00 24.51 ATOM 145 CG2 VAL D 20 1.065 14.595 6.366 1.00 23.77 ATOM 146 N CYS D 21 3.395 14.477 3.538 1.00 20.28 ATOM 147 CA CYS D 21 4.249 15.547 3.055 1.00 20.79 ATOM 148 C CYS D 21 3.526 16.878 3.361 1.00 22.30 ATOM 149 O CYS D 21 2.471 17.138 2.821 1.00 23.41 ATOM 150 CB CYS D 21 4.548 15.424 1.553 1.00 21.84 ATOM 151 SG CYS D 21 5.848 16.532 1.110 1.00 21.30 ATOM 152 N GLY D 22 4.088 17.614 4.288 1.00 22.39 ATOM 153 CA GLY D 22 3.573 18.879 4.796 1.00 23.91 ATOM 154 C GLY D 22 3.755 19.981 3.827 1.00 25.00 ATOM 155 O GLY D 22 4.440 19.852 2.824 1.00 25.34 ATOM 156 N PRO D 23 3.059 21.099 4.065 1.00 29.23 ATOM 157 CA PRO D 23 3.087 22.175 3.130 1.00 30.64 ATOM 158 C PRO D 23 4.462 22.824 2.968 1.00 31.86 ATOM 159 O PRO D 23 4.691 23.460 1.961 1.00 33.40 ATOM 160 CB PRO D 23 2.031 23.148 3.688 1.00 31.20 ATOM 161 CG PRO D 23 1.902 22.820 5.055 1.00 30.73 ATOM 162 CD PRO D 23 2.158 21.353 5.198 1.00 29.99 ATOM 163 N ASN D 24 5.345 22.636 3.944 1.00 31.25 ATOM 164 CA ASN D 24 6.755 23.056 3.878 1.00 30.41 ATOM 165 C ASN D 24 7.727 22.090 3.127 1.00 28.47 ATOM 166 O ASN D 24 8.932 22.356 3.084 1.00 30.18 ATOM 167 CB ASN D 24 7.302 23.325 5.288 1.00 31.21 ATOM 168 CG ASN D 24 7.300 22.099 6.251 1.00 32.05 ATOM 169 OD1 ASN D 24 7.643 22.298 7.427 1.00 36.17 ATOM 170 ND2 ASN D 24 6.866 20.875 5.818 1.00 29.17 ATOM 171 N GLY D 25 7.216 21.013 2.543 1.00 25.61 ATOM 172 CA GLY D 25 8.063 20.083 1.791 1.00 23.54 ATOM 173 C GLY D 25 8.889 19.178 2.694 1.00 23.04 ATOM 174 O GLY D 25 9.883 18.636 2.239 1.00 20.70 ATOM 175 N PHE D 26 8.456 18.991 3.942 1.00 20.95 ATOM 176 CA PHE D 26 9.035 18.003 4.832 1.00 20.43 ATOM 177 C PHE D 26 7.990 17.018 5.322 1.00 18.78 ATOM 178 O PHE D 26 6.810 17.334 5.495 1.00 20.02 ATOM 179 CB PHE D 26 9.699 18.603 6.063 1.00 21.56 ATOM 180 CG PHE D 26 10.995 19.328 5.781 1.00 22.56 ATOM 181 CD1 PHE D 26 10.981 20.636 5.422 1.00 22.71 ATOM 182 CD2 PHE D 26 12.199 18.709 5.940 1.00 23.39 ATOM 183 CE1 PHE D 26 12.162 21.342 5.162 1.00 25.36 ATOM 184 CE2 PHE D 26 13.385 19.390 5.717 1.00 25.55 ATOM 185 CZ PHE D 26 13.386 20.699 5.323 1.00 22.58 ATOM 186 N CYS D 27 8.434 15.814 5.620 1.00 18.58 ATOM 187 CA CYS D 27 7.556 14.749 6.124 1.00 18.25 ATOM 188 C CYS D 27 7.196 15.049 7.552 1.00 19.48 ATOM 189 O CYS D 27 8.037 15.503 8.310 1.00 22.51 ATOM 190 CB CYS D 27 8.300 13.404 6.074 1.00 18.22 ATOM 191 SG CYS D 27 8.655 12.874 4.353 1.00 20.38 ATOM 192 N GLY D 28 5.955 14.735 7.927 1.00 20.00 ATOM 193 CA GLY D 28 5.535 14.917 9.277 1.00 21.90 ATOM 194 C GLY D 28 4.226 14.216 9.550 1.00 22.89 ATOM 195 O GLY D 28 3.643 13.548 8.718 1.00 22.62 ATOM 196 C FMT D1032 18.661 20.921 3.089 1.00 45.63 ATOM 197 O1 FMT D1032 17.846 20.070 2.734 1.00 45.03 ATOM 198 O2 FMT D1032 18.292 22.083 3.294 1.00 45.98 TER ATOM 1 C FMT F1032 9.230 19.056 10.904 1.00 51.46 ATOM 2 O1 FMT F1032 9.666 18.341 11.841 1.00 52.15 ATOM 3 O2 FMT F1032 8.645 20.141 11.048 1.00 50.48 TER