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 B 1 31 UNP P12071 ITR2_ECBEL 1 31 DBREF 1W7Z E 1 31 UNP P12071 ITR2_ECBEL 1 31 DBREF 1W7Z F 1 31 UNP P12071 ITR2_ECBEL 1 31 SEQRES 1 F 28 GLY CYS PRO ARG ILE LEU ILE ARG CYS LYS GLN ASP SER SEQRES 2 F 28 ASP CYS LEU ALA GLY CYS VAL CYS GLY PRO ASN GLY PHE SEQRES 3 F 28 CYS GLY ATOM 1 C FMT B1032 21.218 21.324 12.693 1.00 47.81 ATOM 2 O1 FMT B1032 22.107 20.491 12.413 1.00 46.37 ATOM 3 O2 FMT B1032 20.620 21.282 13.782 1.00 49.77 TER ATOM 1 NA NA E1031 18.286 6.291 21.418 1.00 32.35 TER ATOM 1 N GLY F 1 31.175 8.761 17.381 1.00 46.03 ATOM 2 CA GLY F 1 30.517 10.071 17.135 1.00 44.78 ATOM 3 C GLY F 1 29.079 9.869 16.703 1.00 43.11 ATOM 4 O GLY F 1 28.674 8.790 16.261 1.00 44.79 ATOM 5 N CYS F 2 28.297 10.927 16.799 1.00 40.74 ATOM 6 CA CYS F 2 26.911 10.835 16.426 1.00 37.42 ATOM 7 C CYS F 2 26.753 10.893 14.855 1.00 35.70 ATOM 8 O CYS F 2 27.309 11.761 14.233 1.00 36.16 ATOM 9 CB CYS F 2 26.215 11.987 17.065 1.00 37.75 ATOM 10 SG CYS F 2 24.483 11.938 16.813 1.00 34.89 ATOM 11 N PRO F 3 25.931 10.025 14.258 1.00 32.22 ATOM 12 CA PRO F 3 25.632 10.103 12.796 1.00 30.62 ATOM 13 C PRO F 3 25.065 11.466 12.433 1.00 27.41 ATOM 14 O PRO F 3 24.386 12.064 13.238 1.00 25.84 ATOM 15 CB PRO F 3 24.537 9.073 12.617 1.00 30.82 ATOM 16 CG PRO F 3 24.683 8.149 13.795 1.00 32.00 ATOM 17 CD PRO F 3 25.127 8.993 14.916 1.00 33.50 ATOM 18 N ARG F 4 25.321 11.982 11.232 1.00 26.33 ATOM 19 CA ARG F 4 24.993 13.367 10.910 1.00 25.73 ATOM 20 C ARG F 4 23.622 13.519 10.209 1.00 24.24 ATOM 21 O ARG F 4 23.389 14.476 9.521 1.00 25.26 ATOM 22 CB ARG F 4 26.050 13.993 9.992 0.70 26.77 ATOM 23 CG ARG F 4 27.518 13.746 10.345 0.70 30.36 ATOM 24 CD ARG F 4 28.308 14.866 11.073 0.70 35.88 ATOM 25 NE ARG F 4 28.084 16.298 10.816 0.70 35.73 ATOM 26 CZ ARG F 4 28.785 17.109 10.001 0.70 35.71 ATOM 27 NH1 ARG F 4 29.747 16.668 9.184 0.70 35.23 ATOM 28 NH2 ARG F 4 28.466 18.403 9.954 0.70 34.91 ATOM 29 N ILE F 5 22.730 12.575 10.457 1.00 23.24 ATOM 30 CA ILE F 5 21.359 12.590 10.045 1.00 21.38 ATOM 31 C ILE F 5 20.591 13.497 10.966 1.00 21.69 ATOM 32 O ILE F 5 20.787 13.457 12.177 1.00 22.52 ATOM 33 CB ILE F 5 20.719 11.167 10.174 1.00 21.46 ATOM 34 CG1 ILE F 5 21.485 10.157 9.309 1.00 25.58 ATOM 35 CG2 ILE F 5 19.311 11.236 9.723 1.00 21.16 ATOM 36 CD1 ILE F 5 21.166 8.717 9.634 1.00 29.23 ATOM 37 N LEU F 6 19.777 14.365 10.395 1.00 20.15 ATOM 38 CA LEU F 6 18.972 15.316 11.218 1.00 19.88 ATOM 39 C LEU F 6 17.765 14.608 11.841 1.00 19.35 ATOM 40 O LEU F 6 16.855 14.143 11.129 1.00 20.82 ATOM 41 CB LEU F 6 18.482 16.479 10.331 0.50 19.27 ATOM 42 CG LEU F 6 19.414 17.677 10.140 0.50 19.33 ATOM 43 CD1 LEU F 6 19.307 18.500 11.414 0.50 18.80 ATOM 44 CD2 LEU F 6 20.856 17.286 9.814 0.50 15.82 ATOM 45 N ILE F 7 17.768 14.515 13.174 1.00 20.04 ATOM 46 CA ILE F 7 16.737 13.833 13.924 1.00 20.06 ATOM 47 C ILE F 7 16.376 14.706 15.116 1.00 20.47 ATOM 48 O ILE F 7 17.244 15.097 15.929 1.00 21.40 ATOM 49 CB ILE F 7 17.209 12.436 14.375 1.00 20.98 ATOM 50 CG1 ILE F 7 17.623 11.591 13.152 1.00 22.10 ATOM 51 CG2 ILE F 7 16.094 11.746 15.143 1.00 21.94 ATOM 52 CD1 ILE F 7 18.049 10.200 13.468 1.00 24.21 ATOM 53 N ARG F 8 15.089 14.999 15.243 1.00 21.88 ATOM 54 CA ARG F 8 14.607 15.757 16.395 1.00 22.87 ATOM 55 C ARG F 8 14.635 14.926 17.633 1.00 23.47 ATOM 56 O ARG F 8 14.460 13.736 17.580 1.00 22.39 ATOM 57 CB ARG F 8 13.163 16.192 16.186 1.00 26.20 ATOM 58 CG ARG F 8 12.965 17.120 15.121 1.00 27.59 ATOM 59 CD ARG F 8 11.546 17.614 15.189 1.00 31.77 ATOM 60 NE ARG F 8 11.283 18.623 14.207 1.00 33.33 ATOM 61 CZ ARG F 8 11.465 19.929 14.371 1.00 34.60 ATOM 62 NH1 ARG F 8 11.971 20.439 15.464 1.00 33.88 ATOM 63 NH2 ARG F 8 11.158 20.714 13.382 1.00 32.94 ATOM 64 N CYS F 9 14.754 15.574 18.797 1.00 22.18 ATOM 65 CA CYS F 9 14.798 14.865 20.054 1.00 24.29 ATOM 66 C CYS F 9 14.301 15.775 21.162 1.00 24.63 ATOM 67 O CYS F 9 14.403 17.014 21.083 1.00 27.47 ATOM 68 CB CYS F 9 16.210 14.449 20.386 1.00 24.25 ATOM 69 SG CYS F 9 17.475 15.736 20.249 1.00 25.69 ATOM 70 N LYS F 10 13.784 15.132 22.203 1.00 26.24 ATOM 71 CA LYS F 10 13.474 15.830 23.441 1.00 28.00 ATOM 72 C LYS F 10 14.434 15.461 24.546 1.00 27.66 ATOM 73 O LYS F 10 14.565 16.233 25.504 1.00 29.40 ATOM 74 CB LYS F 10 12.082 15.452 23.907 1.00 28.76 ATOM 75 CG LYS F 10 10.964 15.803 22.971 1.00 34.85 ATOM 76 CD LYS F 10 9.625 15.403 23.556 1.00 40.78 ATOM 77 CE LYS F 10 9.341 13.932 23.380 1.00 44.10 ATOM 78 NZ LYS F 10 8.037 13.527 24.018 1.00 48.82 ATOM 79 N GLN F 11 15.021 14.263 24.475 1.00 25.65 ATOM 80 CA GLN F 11 16.082 13.866 25.374 1.00 26.93 ATOM 81 C GLN F 11 17.074 12.929 24.689 1.00 25.42 ATOM 82 O GLN F 11 16.833 12.500 23.564 1.00 24.77 ATOM 83 CB GLN F 11 15.488 13.174 26.586 1.00 27.48 ATOM 84 CG GLN F 11 14.686 11.924 26.343 1.00 29.56 ATOM 85 CD GLN F 11 14.239 11.350 27.680 1.00 36.43 ATOM 86 OE1 GLN F 11 13.163 11.686 28.181 1.00 42.10 ATOM 87 NE2 GLN F 11 15.084 10.572 28.297 1.00 37.18 ATOM 88 N ASP F 12 18.218 12.669 25.330 1.00 24.37 ATOM 89 CA ASP F 12 19.310 11.959 24.651 1.00 25.64 ATOM 90 C ASP F 12 18.852 10.596 24.169 1.00 24.84 ATOM 91 O ASP F 12 19.288 10.121 23.120 1.00 25.08 ATOM 92 CB ASP F 12 20.533 11.782 25.561 1.00 25.42 ATOM 93 CG ASP F 12 21.185 13.111 26.033 1.00 27.02 ATOM 94 OD1 ASP F 12 20.772 14.208 25.572 1.00 24.64 ATOM 95 OD2 ASP F 12 22.096 13.043 26.955 1.00 28.72 ATOM 96 N SER F 13 18.004 9.916 24.928 1.00 25.05 ATOM 97 CA SER F 13 17.565 8.573 24.525 1.00 25.57 ATOM 98 C SER F 13 16.764 8.518 23.221 1.00 25.74 ATOM 99 O SER F 13 16.611 7.410 22.671 1.00 26.22 ATOM 100 CB SER F 13 16.769 7.883 25.596 1.00 26.64 ATOM 101 OG SER F 13 15.567 8.552 25.925 1.00 27.95 ATOM 102 N ASP F 14 16.282 9.662 22.724 1.00 24.03 ATOM 103 CA ASP F 14 15.603 9.758 21.418 1.00 25.19 ATOM 104 C ASP F 14 16.571 9.561 20.265 1.00 23.96 ATOM 105 O ASP F 14 16.158 9.339 19.105 1.00 24.57 ATOM 106 CB ASP F 14 14.942 11.148 21.280 1.00 25.92 ATOM 107 CG ASP F 14 13.744 11.332 22.218 1.00 28.39 ATOM 108 OD1 ASP F 14 13.268 10.361 22.852 1.00 33.09 ATOM 109 OD2 ASP F 14 13.301 12.464 22.362 1.00 30.12 ATOM 110 N CYS F 15 17.860 9.664 20.553 1.00 23.02 ATOM 111 CA CYS F 15 18.843 9.659 19.509 1.00 24.21 ATOM 112 C CYS F 15 19.497 8.304 19.318 1.00 26.33 ATOM 113 O CYS F 15 19.390 7.419 20.148 1.00 28.55 ATOM 114 CB CYS F 15 19.907 10.709 19.763 1.00 24.02 ATOM 115 SG CYS F 15 19.275 12.400 19.959 1.00 24.48 ATOM 116 N LEU F 16 20.261 8.187 18.253 1.00 25.97 ATOM 117 CA LEU F 16 21.047 6.996 18.003 1.00 27.13 ATOM 118 C LEU F 16 22.207 6.894 18.972 1.00 27.87 ATOM 119 O LEU F 16 22.510 7.833 19.715 1.00 28.43 ATOM 120 CB LEU F 16 21.543 6.957 16.534 1.00 27.01 ATOM 121 CG LEU F 16 20.433 6.953 15.445 1.00 27.06 ATOM 122 CD1 LEU F 16 21.005 7.170 14.141 1.00 29.33 ATOM 123 CD2 LEU F 16 19.633 5.659 15.410 1.00 29.09 ATOM 124 N ALA F 17 22.858 5.743 18.993 1.00 28.94 ATOM 125 CA ALA F 17 24.040 5.555 19.846 1.00 30.95 ATOM 126 C ALA F 17 25.168 6.546 19.572 1.00 31.88 ATOM 127 O ALA F 17 25.477 6.870 18.418 1.00 32.56 ATOM 128 CB ALA F 17 24.555 4.171 19.713 1.00 30.62 ATOM 129 N GLY F 18 25.773 7.082 20.629 1.00 33.52 ATOM 130 CA GLY F 18 26.811 8.103 20.478 1.00 33.82 ATOM 131 C GLY F 18 26.330 9.543 20.484 1.00 33.70 ATOM 132 O GLY F 18 27.140 10.489 20.405 1.00 34.48 ATOM 133 N CYS F 19 25.018 9.742 20.578 1.00 31.41 ATOM 134 CA CYS F 19 24.482 11.044 20.388 1.00 30.35 ATOM 135 C CYS F 19 23.856 11.568 21.661 1.00 28.86 ATOM 136 O CYS F 19 23.428 10.805 22.515 1.00 29.86 ATOM 137 CB CYS F 19 23.366 11.017 19.373 1.00 30.74 ATOM 138 SG CYS F 19 23.804 10.352 17.805 1.00 33.14 ATOM 139 N VAL F 20 23.769 12.865 21.742 1.00 27.90 ATOM 140 CA VAL F 20 22.981 13.515 22.779 1.00 26.65 ATOM 141 C VAL F 20 22.022 14.469 22.105 1.00 27.48 ATOM 142 O VAL F 20 22.222 14.820 20.926 1.00 27.38 ATOM 143 CB VAL F 20 23.846 14.281 23.800 1.00 26.83 ATOM 144 CG1 VAL F 20 24.761 13.363 24.483 1.00 28.80 ATOM 145 CG2 VAL F 20 24.590 15.400 23.160 1.00 27.51 ATOM 146 N CYS F 21 21.027 14.925 22.858 1.00 27.55 ATOM 147 CA CYS F 21 20.090 15.900 22.362 1.00 29.68 ATOM 148 C CYS F 21 20.686 17.283 22.563 1.00 31.07 ATOM 149 O CYS F 21 20.923 17.698 23.700 1.00 30.76 ATOM 150 CB CYS F 21 18.741 15.761 23.058 1.00 30.44 ATOM 151 SG CYS F 21 17.440 16.584 22.180 1.00 32.54 ATOM 152 N GLY F 22 20.978 17.972 21.484 1.00 32.90 ATOM 153 CA GLY F 22 21.580 19.323 21.536 1.00 34.55 ATOM 154 C GLY F 22 20.623 20.444 21.894 1.00 36.46 ATOM 155 O GLY F 22 19.422 20.220 22.086 1.00 35.85 ATOM 156 N PRO F 23 21.170 21.685 22.045 1.00 39.21 ATOM 157 CA PRO F 23 20.395 22.859 22.482 1.00 40.11 ATOM 158 C PRO F 23 19.190 23.254 21.624 1.00 40.10 ATOM 159 O PRO F 23 18.240 23.886 22.129 1.00 40.97 ATOM 160 CB PRO F 23 21.441 23.992 22.506 1.00 40.61 ATOM 161 CG PRO F 23 22.641 23.477 21.697 1.00 40.88 ATOM 162 CD PRO F 23 22.598 21.996 21.819 1.00 39.37 ATOM 163 N ASN F 24 19.223 22.906 20.346 1.00 38.90 ATOM 164 CA ASN F 24 18.099 23.142 19.456 1.00 38.52 ATOM 165 C ASN F 24 17.164 21.960 19.249 1.00 36.79 ATOM 166 O ASN F 24 16.339 21.996 18.333 1.00 37.08 ATOM 167 CB ASN F 24 18.625 23.538 18.091 1.00 39.47 ATOM 168 CG ASN F 24 19.314 24.872 18.104 1.00 42.41 ATOM 169 OD1 ASN F 24 20.436 24.994 17.621 1.00 48.68 ATOM 170 ND2 ASN F 24 18.645 25.885 18.637 1.00 45.75 ATOM 171 N GLY F 25 17.254 20.922 20.089 1.00 33.61 ATOM 172 CA GLY F 25 16.317 19.807 19.967 1.00 31.15 ATOM 173 C GLY F 25 16.590 18.882 18.778 1.00 29.60 ATOM 174 O GLY F 25 15.651 18.237 18.278 1.00 27.98 ATOM 175 N PHE F 26 17.850 18.834 18.349 1.00 27.95 ATOM 176 CA PHE F 26 18.343 17.826 17.412 1.00 26.88 ATOM 177 C PHE F 26 19.531 17.050 17.934 1.00 25.00 ATOM 178 O PHE F 26 20.329 17.535 18.744 1.00 26.54 ATOM 179 CB PHE F 26 18.701 18.453 16.031 1.00 27.34 ATOM 180 CG PHE F 26 17.481 18.923 15.247 1.00 26.74 ATOM 181 CD1 PHE F 26 16.772 20.071 15.637 1.00 29.55 ATOM 182 CD2 PHE F 26 16.987 18.173 14.214 1.00 26.51 ATOM 183 CE1 PHE F 26 15.622 20.446 14.968 1.00 30.52 ATOM 184 CE2 PHE F 26 15.848 18.534 13.540 1.00 28.50 ATOM 185 CZ PHE F 26 15.174 19.673 13.877 1.00 27.84 ATOM 186 N CYS F 27 19.638 15.820 17.487 1.00 22.90 ATOM 187 CA CYS F 27 20.677 14.906 17.905 1.00 24.79 ATOM 188 C CYS F 27 22.034 15.291 17.375 1.00 25.65 ATOM 189 O CYS F 27 22.210 15.580 16.189 1.00 26.50 ATOM 190 CB CYS F 27 20.393 13.462 17.428 1.00 24.14 ATOM 191 SG CYS F 27 18.798 12.858 18.028 1.00 24.22 ATOM 192 N GLY F 28 23.029 15.168 18.215 1.00 26.83 ATOM 193 CA GLY F 28 24.376 15.598 17.855 1.00 28.23 ATOM 194 C GLY F 28 25.403 14.947 18.740 1.00 30.77 ATOM 195 O GLY F 28 25.089 14.149 19.635 1.00 30.30 ATOM 196 C FMT F1032 9.230 19.056 10.904 1.00 51.46 ATOM 197 O1 FMT F1032 9.666 18.341 11.841 1.00 52.15 ATOM 198 O2 FMT F1032 8.645 20.141 11.048 1.00 50.48 TER