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 A 1 31 UNP P12071 ITR2_ECBEL 1 31 DBREF 1W7Z B 1 31 UNP P12071 ITR2_ECBEL 1 31 DBREF 1W7Z D 1 31 UNP P12071 ITR2_ECBEL 1 31 SEQRES 1 B 28 GLY CYS PRO ARG ILE LEU ILE ARG CYS LYS GLN ASP SER SEQRES 2 B 28 ASP CYS LEU ALA GLY CYS VAL CYS GLY PRO ASN GLY PHE SEQRES 3 B 28 CYS GLY ATOM 1 NA NA A1032 29.182 7.560 1.658 1.00 29.22 TER ATOM 1 N GLY B 1 18.880 8.605 -7.822 1.00 43.72 ATOM 2 CA GLY B 1 19.306 9.909 -7.222 1.00 42.34 ATOM 3 C GLY B 1 19.596 9.780 -5.734 1.00 40.84 ATOM 4 O GLY B 1 19.589 8.670 -5.161 1.00 42.69 ATOM 5 N CYS B 2 19.810 10.912 -5.088 1.00 37.33 ATOM 6 CA CYS B 2 20.190 10.915 -3.690 1.00 33.62 ATOM 7 C CYS B 2 18.924 10.755 -2.781 1.00 31.68 ATOM 8 O CYS B 2 17.904 11.404 -3.027 1.00 31.78 ATOM 9 CB CYS B 2 20.928 12.210 -3.423 1.00 32.74 ATOM 10 SG CYS B 2 21.556 12.289 -1.844 1.00 32.20 ATOM 11 N PRO B 3 18.984 9.901 -1.758 1.00 27.83 ATOM 12 CA PRO B 3 17.916 9.893 -0.745 1.00 25.71 ATOM 13 C PRO B 3 17.628 11.325 -0.240 1.00 23.52 ATOM 14 O PRO B 3 18.563 12.123 -0.136 1.00 22.49 ATOM 15 CB PRO B 3 18.516 9.028 0.359 1.00 26.65 ATOM 16 CG PRO B 3 19.501 8.152 -0.361 1.00 26.84 ATOM 17 CD PRO B 3 20.073 8.962 -1.417 1.00 28.98 ATOM 18 N ARG B 4 16.387 11.653 0.160 1.00 20.28 ATOM 19 CA ARG B 4 16.073 13.026 0.576 1.00 20.09 ATOM 20 C ARG B 4 16.064 13.220 2.099 1.00 18.59 ATOM 21 O ARG B 4 15.666 14.259 2.609 1.00 16.75 ATOM 22 CB ARG B 4 14.796 13.492 -0.152 0.70 20.59 ATOM 23 CG ARG B 4 14.959 13.584 -1.710 0.70 24.51 ATOM 24 CD ARG B 4 13.872 14.424 -2.445 0.70 28.66 ATOM 25 NE ARG B 4 14.126 15.831 -2.205 0.70 29.71 ATOM 26 CZ ARG B 4 13.209 16.767 -2.152 0.70 27.84 ATOM 27 NH1 ARG B 4 11.935 16.494 -2.408 0.70 25.50 ATOM 28 NH2 ARG B 4 13.605 17.994 -1.827 0.70 31.57 ATOM 29 N ILE B 5 16.664 12.267 2.801 1.00 18.14 ATOM 30 CA ILE B 5 16.947 12.383 4.239 1.00 17.40 ATOM 31 C ILE B 5 17.992 13.465 4.417 1.00 17.50 ATOM 32 O ILE B 5 18.985 13.508 3.711 1.00 18.73 ATOM 33 CB ILE B 5 17.448 11.038 4.825 1.00 17.98 ATOM 34 CG1 ILE B 5 16.429 9.915 4.708 1.00 20.30 ATOM 35 CG2 ILE B 5 17.799 11.155 6.240 1.00 18.74 ATOM 36 CD1 ILE B 5 17.043 8.555 4.814 1.00 23.75 ATOM 37 N LEU B 6 17.814 14.334 5.383 1.00 17.97 ATOM 38 CA LEU B 6 18.798 15.386 5.629 1.00 18.21 ATOM 39 C LEU B 6 19.969 14.797 6.391 1.00 15.80 ATOM 40 O LEU B 6 19.847 14.343 7.542 1.00 18.10 ATOM 41 CB LEU B 6 18.217 16.568 6.409 1.00 18.76 ATOM 42 CG LEU B 6 17.197 17.510 5.850 1.00 25.16 ATOM 43 CD1 LEU B 6 17.369 18.969 6.050 1.00 25.88 ATOM 44 CD2 LEU B 6 16.561 17.143 4.623 1.00 24.15 ATOM 45 N ILE B 7 21.131 14.886 5.746 1.00 17.26 ATOM 46 CA ILE B 7 22.407 14.462 6.270 1.00 17.10 ATOM 47 C ILE B 7 23.467 15.487 6.019 1.00 17.96 ATOM 48 O ILE B 7 23.695 15.842 4.894 1.00 18.64 ATOM 49 CB ILE B 7 22.791 13.145 5.673 1.00 17.59 ATOM 50 CG1 ILE B 7 21.680 12.156 5.780 1.00 19.44 ATOM 51 CG2 ILE B 7 24.059 12.620 6.330 1.00 19.56 ATOM 52 CD1 ILE B 7 22.031 10.797 5.153 1.00 21.13 ATOM 53 N ARG B 8 24.082 16.006 7.074 1.00 19.29 ATOM 54 CA ARG B 8 25.209 16.921 6.924 1.00 20.73 ATOM 55 C ARG B 8 26.455 16.203 6.470 1.00 22.39 ATOM 56 O ARG B 8 26.683 15.032 6.777 1.00 22.34 ATOM 57 CB ARG B 8 25.455 17.720 8.214 1.00 23.06 ATOM 58 CG ARG B 8 24.403 18.719 8.567 1.00 24.71 ATOM 59 CD ARG B 8 24.759 19.495 9.844 1.00 31.33 ATOM 60 NE ARG B 8 23.730 20.450 10.137 1.00 31.84 ATOM 61 CZ ARG B 8 23.619 21.631 9.561 1.00 36.21 ATOM 62 NH1 ARG B 8 24.481 22.024 8.618 1.00 35.52 ATOM 63 NH2 ARG B 8 22.625 22.428 9.900 1.00 39.34 ATOM 64 N CYS B 9 27.280 16.927 5.718 1.00 24.13 ATOM 65 CA CYS B 9 28.458 16.365 5.126 1.00 25.33 ATOM 66 C CYS B 9 29.525 17.426 4.973 1.00 27.14 ATOM 67 O CYS B 9 29.255 18.653 4.876 1.00 27.48 ATOM 68 CB CYS B 9 28.171 15.803 3.724 1.00 25.99 ATOM 69 SG CYS B 9 27.370 16.922 2.623 1.00 25.28 ATOM 70 N LYS B 10 30.745 16.913 4.932 1.00 28.25 ATOM 71 CA LYS B 10 31.894 17.731 4.565 1.00 31.29 ATOM 72 C LYS B 10 32.476 17.326 3.217 1.00 31.24 ATOM 73 O LYS B 10 33.026 18.179 2.505 1.00 32.90 ATOM 74 CB LYS B 10 32.927 17.520 5.645 1.00 32.97 ATOM 75 CG LYS B 10 32.536 18.226 6.948 1.00 38.38 ATOM 76 CD LYS B 10 33.683 18.215 7.937 1.00 43.65 ATOM 77 CE LYS B 10 34.006 16.827 8.467 1.00 47.21 ATOM 78 NZ LYS B 10 35.151 16.207 7.771 1.00 49.95 ATOM 79 N GLN B 11 32.421 16.041 2.894 1.00 31.27 ATOM 80 CA GLN B 11 32.775 15.562 1.536 1.00 30.70 ATOM 81 C GLN B 11 31.814 14.552 0.993 1.00 29.48 ATOM 82 O GLN B 11 30.986 14.021 1.720 1.00 27.79 ATOM 83 CB GLN B 11 34.306 15.422 1.443 0.70 32.15 ATOM 84 CG GLN B 11 35.076 16.098 2.674 0.70 34.56 ATOM 85 CD GLN B 11 36.366 15.439 3.018 0.70 35.77 ATOM 86 OE1 GLN B 11 36.521 14.908 4.131 0.70 37.26 ATOM 87 NE2 GLN B 11 37.311 15.456 2.078 0.70 36.74 ATOM 88 N ASP B 12 31.897 14.330 -0.315 1.00 27.12 ATOM 89 CA ASP B 12 30.977 13.443 -1.038 1.00 28.53 ATOM 90 C ASP B 12 30.911 12.022 -0.445 1.00 29.23 ATOM 91 O ASP B 12 29.824 11.435 -0.355 1.00 29.98 ATOM 92 CB ASP B 12 31.387 13.323 -2.497 1.00 29.62 ATOM 93 CG ASP B 12 31.257 14.616 -3.290 1.00 32.44 ATOM 94 OD1 ASP B 12 30.587 15.570 -2.859 1.00 33.04 ATOM 95 OD2 ASP B 12 31.833 14.618 -4.424 1.00 36.16 ATOM 96 N SER B 13 32.052 11.451 0.000 1.00 29.26 ATOM 97 CA SER B 13 31.995 10.073 0.572 1.00 29.38 ATOM 98 C SER B 13 31.201 10.002 1.898 1.00 28.41 ATOM 99 O SER B 13 30.832 8.929 2.329 1.00 28.67 ATOM 100 CB SER B 13 33.402 9.536 0.773 1.00 31.35 ATOM 101 OG SER B 13 34.062 10.466 1.555 1.00 35.97 ATOM 102 N ASP B 14 30.903 11.139 2.526 1.00 27.05 ATOM 103 CA ASP B 14 30.022 11.153 3.722 1.00 25.73 ATOM 104 C ASP B 14 28.584 10.751 3.397 1.00 24.87 ATOM 105 O ASP B 14 27.791 10.410 4.269 1.00 24.40 ATOM 106 CB ASP B 14 29.984 12.514 4.366 1.00 26.32 ATOM 107 CG ASP B 14 31.338 12.973 4.921 1.00 30.58 ATOM 108 OD1 ASP B 14 32.226 12.101 5.057 1.00 33.41 ATOM 109 OD2 ASP B 14 31.494 14.218 5.182 1.00 30.94 ATOM 110 N CYS B 15 28.227 10.809 2.119 1.00 21.52 ATOM 111 CA CYS B 15 26.809 10.710 1.768 1.00 22.67 ATOM 112 C CYS B 15 26.470 9.311 1.291 1.00 22.61 ATOM 113 O CYS B 15 27.381 8.520 1.006 1.00 25.27 ATOM 114 CB CYS B 15 26.519 11.714 0.670 1.00 22.53 ATOM 115 SG CYS B 15 26.778 13.452 1.209 1.00 23.56 ATOM 116 N LEU B 16 25.193 9.016 1.157 1.00 21.57 ATOM 117 CA LEU B 16 24.723 7.732 0.616 1.00 22.35 ATOM 118 C LEU B 16 24.908 7.636 -0.896 1.00 23.15 ATOM 119 O LEU B 16 25.228 8.625 -1.507 1.00 24.49 ATOM 120 CB LEU B 16 23.250 7.536 0.987 1.00 21.84 ATOM 121 CG LEU B 16 23.056 7.505 2.484 1.00 22.22 ATOM 122 CD1 LEU B 16 21.593 7.494 2.787 1.00 21.99 ATOM 123 CD2 LEU B 16 23.720 6.258 3.072 1.00 23.96 ATOM 124 N ALA B 17 24.656 6.467 -1.483 1.00 23.76 ATOM 125 CA ALA B 17 24.820 6.273 -2.923 1.00 25.41 ATOM 126 C ALA B 17 23.971 7.221 -3.726 1.00 26.70 ATOM 127 O ALA B 17 22.815 7.440 -3.403 1.00 27.66 ATOM 128 CB ALA B 17 24.521 4.862 -3.289 1.00 24.28 ATOM 129 N GLY B 18 24.593 7.834 -4.730 1.00 27.82 ATOM 130 CA GLY B 18 23.926 8.798 -5.585 1.00 27.96 ATOM 131 C GLY B 18 24.022 10.245 -5.214 1.00 27.14 ATOM 132 O GLY B 18 23.410 11.128 -5.893 1.00 28.75 ATOM 133 N CYS B 19 24.713 10.516 -4.114 1.00 26.82 ATOM 134 CA CYS B 19 24.736 11.820 -3.511 1.00 26.14 ATOM 135 C CYS B 19 26.099 12.420 -3.647 1.00 27.03 ATOM 136 O CYS B 19 27.105 11.704 -3.721 1.00 29.19 ATOM 137 CB CYS B 19 24.439 11.727 -2.014 1.00 26.72 ATOM 138 SG CYS B 19 22.909 10.888 -1.619 1.00 29.45 ATOM 139 N VAL B 20 26.117 13.740 -3.687 1.00 25.90 ATOM 140 CA VAL B 20 27.300 14.515 -3.413 1.00 27.73 ATOM 141 C VAL B 20 27.048 15.465 -2.292 1.00 26.70 ATOM 142 O VAL B 20 25.912 15.683 -1.895 1.00 27.53 ATOM 143 CB VAL B 20 27.752 15.318 -4.646 1.00 27.79 ATOM 144 CG1 VAL B 20 28.111 14.339 -5.691 1.00 31.04 ATOM 145 CG2 VAL B 20 26.660 16.333 -5.108 1.00 28.87 ATOM 146 N CYS B 21 28.120 16.083 -1.821 1.00 26.54 ATOM 147 CA CYS B 21 28.023 17.037 -0.775 1.00 28.33 ATOM 148 C CYS B 21 27.823 18.427 -1.368 1.00 29.02 ATOM 149 O CYS B 21 28.692 18.940 -2.099 1.00 29.13 ATOM 150 CB CYS B 21 29.251 16.987 0.125 1.00 29.53 ATOM 151 SG CYS B 21 28.973 17.870 1.640 1.00 32.61 ATOM 152 N GLY B 22 26.638 18.993 -1.130 1.00 30.12 ATOM 153 CA GLY B 22 26.250 20.271 -1.760 1.00 31.33 ATOM 154 C GLY B 22 26.938 21.457 -1.120 1.00 32.58 ATOM 155 O GLY B 22 27.461 21.385 -0.016 1.00 31.67 ATOM 156 N PRO B 23 26.871 22.623 -1.778 1.00 35.43 ATOM 157 CA PRO B 23 27.478 23.767 -1.133 1.00 36.35 ATOM 158 C PRO B 23 26.751 24.245 0.121 1.00 36.69 ATOM 159 O PRO B 23 27.300 25.087 0.862 1.00 37.74 ATOM 160 CB PRO B 23 27.418 24.859 -2.209 1.00 37.39 ATOM 161 CG PRO B 23 26.353 24.412 -3.153 1.00 36.83 ATOM 162 CD PRO B 23 26.240 22.945 -3.064 1.00 36.99 ATOM 163 N ASN B 24 25.517 23.781 0.341 1.00 34.98 ATOM 164 CA ASN B 24 24.857 24.007 1.621 1.00 34.53 ATOM 165 C ASN B 24 25.297 23.067 2.768 1.00 33.13 ATOM 166 O ASN B 24 24.780 23.212 3.874 1.00 32.52 ATOM 167 CB ASN B 24 23.335 23.914 1.444 1.00 34.78 ATOM 168 CG ASN B 24 22.869 22.535 0.957 1.00 35.66 ATOM 169 OD1 ASN B 24 23.688 21.615 0.755 1.00 34.51 ATOM 170 ND2 ASN B 24 21.555 22.387 0.778 1.00 35.87 ATOM 171 N GLY B 25 26.229 22.119 2.521 1.00 30.31 ATOM 172 CA GLY B 25 26.767 21.245 3.570 1.00 28.08 ATOM 173 C GLY B 25 25.825 20.096 3.909 1.00 26.09 ATOM 174 O GLY B 25 25.907 19.510 5.000 1.00 25.14 ATOM 175 N PHE B 26 24.931 19.821 2.987 1.00 23.20 ATOM 176 CA PHE B 26 24.023 18.649 3.057 1.00 22.22 ATOM 177 C PHE B 26 24.218 17.774 1.847 1.00 21.45 ATOM 178 O PHE B 26 24.546 18.268 0.731 1.00 22.22 ATOM 179 CB PHE B 26 22.536 19.106 3.097 1.00 22.35 ATOM 180 CG PHE B 26 22.148 19.664 4.417 1.00 24.72 ATOM 181 CD1 PHE B 26 22.323 21.006 4.671 1.00 27.29 ATOM 182 CD2 PHE B 26 21.684 18.834 5.450 1.00 24.01 ATOM 183 CE1 PHE B 26 21.988 21.530 5.903 1.00 26.69 ATOM 184 CE2 PHE B 26 21.340 19.361 6.678 1.00 25.25 ATOM 185 CZ PHE B 26 21.492 20.706 6.907 1.00 25.81 ATOM 186 N CYS B 27 23.961 16.504 2.028 1.00 20.68 ATOM 187 CA CYS B 27 23.954 15.497 0.950 1.00 21.83 ATOM 188 C CYS B 27 22.824 15.761 -0.036 1.00 22.96 ATOM 189 O CYS B 27 21.686 16.043 0.342 1.00 22.93 ATOM 190 CB CYS B 27 23.841 14.095 1.566 1.00 22.46 ATOM 191 SG CYS B 27 25.212 13.691 2.591 1.00 22.08 ATOM 192 N GLY B 28 23.132 15.729 -1.322 1.00 24.77 ATOM 193 CA GLY B 28 22.117 16.025 -2.323 1.00 26.46 ATOM 194 C GLY B 28 22.466 15.406 -3.661 1.00 28.51 ATOM 195 O GLY B 28 23.519 14.852 -3.855 1.00 27.71 ATOM 196 C FMT B1032 21.218 21.324 12.693 1.00 47.81 ATOM 197 O1 FMT B1032 22.107 20.491 12.413 1.00 46.37 ATOM 198 O2 FMT B1032 20.620 21.282 13.782 1.00 49.77 TER ATOM 1 C FMT D1032 18.661 20.921 3.089 1.00 45.63 ATOM 2 O1 FMT D1032 17.846 20.070 2.734 1.00 45.03 ATOM 3 O2 FMT D1032 18.292 22.083 3.294 1.00 45.98 TER