HEADER TOXIN 31-DEC-69 7SAP TITLE The CTI-homolog pacifastin COMPND MOL_ID: 1; COMPND 2 MOLECULE: Serine protease inhibitor I/II-like Protein; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 1; COMPND 6 Serine protease inhibitor I/II-like Protein; COMPND 7 CHAIN: A, B; COMPND 8 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 1.79 ANGSTORMS DBREF 7SAP A -1 32 PDB 7SAP 7SAP -1 32 DBREF 7SAP B -1 32 PDB 7SAP 7SAP -1 32 SEQRES 1 A 33 SER SER CYS GLN PRO GLY THR THR PHE ARG ARG ASP CYS SEQRES 2 A 33 ASN THR CYS VAL CYS ASN ARG ASP GLY THR ASN ALA ALA SEQRES 3 A 33 CYS THR LEU ARG ALA CYS LEU ATOM 1 N SER A 0 -5.500 -1.589 -12.591 1.00 28.77 ATOM 2 CA SER A 0 -4.052 -1.349 -12.937 1.00 29.72 ATOM 3 C SER A 0 -3.856 -1.400 -14.459 1.00 30.51 ATOM 4 O SER A 0 -4.373 -2.338 -15.095 1.00 36.41 ATOM 5 CB SER A 0 -3.143 -2.343 -12.248 1.00 29.78 ATOM 6 OG SER A 0 -1.770 -2.036 -12.479 1.00 30.97 ATOM 7 N SER A 1 -3.155 -0.417 -15.024 1.00 25.89 ATOM 8 CA SER A 1 -2.547 -0.493 -16.377 1.00 23.82 ATOM 9 C SER A 1 -1.071 -0.901 -16.235 1.00 21.06 ATOM 10 O SER A 1 -0.217 -0.047 -15.920 1.00 19.40 ATOM 11 CB SER A 1 -2.721 0.805 -17.112 1.00 25.58 ATOM 12 OG SER A 1 -1.938 0.817 -18.294 1.00 30.18 ATOM 13 N CYS A 2 -0.746 -2.182 -16.425 1.00 18.86 ATOM 14 CA CYS A 2 0.645 -2.670 -16.219 1.00 17.22 ATOM 15 C CYS A 2 1.058 -3.638 -17.346 1.00 16.39 ATOM 16 O CYS A 2 0.175 -4.150 -18.051 1.00 13.83 ATOM 17 CB CYS A 2 0.759 -3.257 -14.813 1.00 16.87 ATOM 18 SG CYS A 2 -0.512 -4.493 -14.427 1.00 16.09 ATOM 19 N GLN A 3 2.368 -3.851 -17.526 1.00 16.18 ATOM 20 CA GLN A 3 2.913 -4.833 -18.495 1.00 16.58 ATOM 21 C GLN A 3 2.626 -6.224 -17.950 1.00 15.36 ATOM 22 O GLN A 3 3.033 -6.539 -16.839 1.00 14.31 ATOM 23 CB GLN A 3 4.408 -4.621 -18.752 1.00 18.91 ATOM 24 CG GLN A 3 4.713 -3.385 -19.595 1.00 21.67 ATOM 25 CD GLN A 3 4.331 -3.563 -21.045 1.00 22.99 ATOM 26 OE1 GLN A 3 3.209 -3.931 -21.381 1.00 25.87 ATOM 27 NE2 GLN A 3 5.288 -3.346 -21.929 1.00 24.73 ATOM 28 N PRO A 4 1.879 -7.061 -18.704 1.00 15.69 ATOM 29 CA PRO A 4 1.532 -8.410 -18.275 1.00 15.68 ATOM 30 C PRO A 4 2.740 -9.161 -17.699 1.00 15.07 ATOM 31 O PRO A 4 3.782 -9.203 -18.317 1.00 14.32 ATOM 32 CB PRO A 4 1.013 -9.063 -19.560 1.00 15.89 ATOM 33 CG PRO A 4 0.421 -7.933 -20.348 1.00 15.74 ATOM 34 CD PRO A 4 1.286 -6.740 -20.012 1.00 16.02 ATOM 35 N GLY A 5 2.566 -9.707 -16.499 1.00 15.04 ATOM 36 CA GLY A 5 3.554 -10.576 -15.850 1.00 14.66 ATOM 37 C GLY A 5 4.752 -9.818 -15.316 1.00 15.42 ATOM 38 O GLY A 5 5.665 -10.476 -14.801 1.00 15.39 ATOM 39 N THR A 6 4.790 -8.487 -15.409 1.00 16.51 ATOM 40 CA THR A 6 5.937 -7.730 -14.843 1.00 18.38 ATOM 41 C THR A 6 5.762 -7.580 -13.330 1.00 18.63 ATOM 42 O THR A 6 4.626 -7.604 -12.831 1.00 17.92 ATOM 43 CB THR A 6 6.187 -6.399 -15.576 1.00 19.48 ATOM 44 OG1 THR A 6 5.099 -5.502 -15.334 1.00 19.99 ATOM 45 CG2 THR A 6 6.396 -6.619 -17.064 1.00 20.22 ATOM 46 N THR A 7 6.881 -7.406 -12.639 1.00 19.61 ATOM 47 CA THR A 7 6.958 -7.081 -11.196 1.00 19.67 ATOM 48 C THR A 7 7.150 -5.565 -11.058 1.00 20.10 ATOM 49 O THR A 7 7.933 -4.981 -11.821 1.00 19.79 ATOM 50 CB THR A 7 8.102 -7.866 -10.543 1.00 20.86 ATOM 51 OG1 THR A 7 7.808 -9.256 -10.668 1.00 22.49 ATOM 52 CG2 THR A 7 8.292 -7.546 -9.079 1.00 22.89 ATOM 53 N PHE A 8 6.432 -4.935 -10.144 1.00 17.75 ATOM 54 CA PHE A 8 6.581 -3.498 -9.818 1.00 18.36 ATOM 55 C PHE A 8 6.263 -3.317 -8.333 1.00 18.98 ATOM 56 O PHE A 8 5.948 -4.323 -7.668 1.00 17.65 ATOM 57 CB PHE A 8 5.712 -2.642 -10.734 1.00 17.14 ATOM 58 CG PHE A 8 4.218 -2.810 -10.577 1.00 18.02 ATOM 59 CD1 PHE A 8 3.540 -3.841 -11.223 1.00 17.32 ATOM 60 CD2 PHE A 8 3.481 -1.915 -9.813 1.00 17.31 ATOM 61 CE1 PHE A 8 2.169 -3.975 -11.101 1.00 17.27 ATOM 62 CE2 PHE A 8 2.114 -2.075 -9.664 1.00 17.42 ATOM 63 CZ PHE A 8 1.456 -3.088 -10.320 1.00 17.28 ATOM 64 N ARG A 9 6.419 -2.094 -7.825 1.00 20.32 ATOM 65 CA ARG A 9 6.234 -1.760 -6.391 1.00 21.54 ATOM 66 C ARG A 9 5.088 -0.760 -6.230 1.00 20.04 ATOM 67 O ARG A 9 4.891 0.092 -7.110 1.00 18.21 ATOM 68 CB ARG A 9 7.554 -1.268 -5.796 1.00 25.90 ATOM 69 CG ARG A 9 8.474 -2.419 -5.416 1.00 30.22 ATOM 70 CD ARG A 9 9.890 -1.968 -5.153 1.00 35.64 ATOM 71 NE ARG A 9 9.949 -1.373 -3.823 1.00 42.52 ATOM 72 CZ ARG A 9 10.210 -2.027 -2.694 1.00 43.54 ATOM 73 NH1 ARG A 9 10.460 -3.328 -2.703 1.00 43.38 ATOM 74 NH2 ARG A 9 10.240 -1.360 -1.549 1.00 47.31 ATOM 75 N ARG A 10 4.292 -0.947 -5.181 1.00 17.19 ATOM 76 CA ARG A 10 3.439 0.101 -4.591 1.00 16.03 ATOM 77 C ARG A 10 4.022 0.324 -3.208 1.00 15.84 ATOM 78 O ARG A 10 3.858 -0.584 -2.367 1.00 14.24 ATOM 79 CB ARG A 10 1.974 -0.329 -4.525 1.00 16.08 ATOM 80 CG ARG A 10 1.288 -0.404 -5.876 1.00 16.24 ATOM 81 CD ARG A 10 -0.130 -0.895 -5.742 1.00 16.25 ATOM 82 NE ARG A 10 -0.732 -1.096 -7.051 1.00 17.07 ATOM 83 CZ ARG A 10 -1.827 -1.811 -7.298 1.00 17.65 ATOM 84 NH1 ARG A 10 -2.480 -2.395 -6.305 1.00 17.93 ATOM 85 NH2 ARG A 10 -2.278 -1.922 -8.541 1.00 17.62 ATOM 86 N ASP A 11 4.770 1.412 -3.010 1.00 16.60 ATOM 87 CA ASP A 11 5.377 1.724 -1.691 1.00 16.32 ATOM 88 C ASP A 11 6.338 0.577 -1.350 1.00 15.95 ATOM 89 O ASP A 11 7.173 0.247 -2.204 1.00 16.46 ATOM 90 CB ASP A 11 4.272 1.937 -0.643 1.00 18.85 ATOM 91 CG ASP A 11 3.262 3.041 -0.965 1.00 20.05 ATOM 92 OD1 ASP A 11 3.609 3.979 -1.725 1.00 19.81 ATOM 93 OD2 ASP A 11 2.124 2.956 -0.429 1.00 24.60 ATOM 94 N CYS A 12 6.178 -0.093 -0.206 1.00 14.35 ATOM 95 CA CYS A 12 7.075 -1.203 0.230 1.00 14.37 ATOM 96 C CYS A 12 6.621 -2.566 -0.326 1.00 14.22 ATOM 97 O CYS A 12 7.293 -3.558 -0.014 1.00 14.51 ATOM 98 CB CYS A 12 7.159 -1.258 1.752 1.00 14.61 ATOM 99 SG CYS A 12 5.684 -1.939 2.542 1.00 14.56 ATOM 100 N ASN A 13 5.539 -2.623 -1.115 1.00 14.44 ATOM 101 CA ASN A 13 4.896 -3.883 -1.582 1.00 14.09 ATOM 102 C ASN A 13 5.378 -4.282 -2.976 1.00 14.87 ATOM 103 O ASN A 13 5.548 -3.403 -3.843 1.00 14.33 ATOM 104 CB ASN A 13 3.365 -3.794 -1.483 1.00 13.94 ATOM 105 CG ASN A 13 2.939 -3.939 -0.037 1.00 14.47 ATOM 106 OD1 ASN A 13 2.316 -3.051 0.573 1.00 16.79 ATOM 107 ND2 ASN A 13 3.331 -5.055 0.538 1.00 13.02 ATOM 108 N THR A 14 5.583 -5.591 -3.147 1.00 15.14 ATOM 109 CA THR A 14 5.845 -6.263 -4.438 1.00 16.37 ATOM 110 C THR A 14 4.487 -6.540 -5.075 1.00 15.15 ATOM 111 O THR A 14 3.613 -7.134 -4.381 1.00 14.09 ATOM 112 CB THR A 14 6.612 -7.582 -4.265 1.00 18.64 ATOM 113 OG1 THR A 14 7.806 -7.345 -3.515 1.00 20.11 ATOM 114 CG2 THR A 14 6.934 -8.238 -5.596 1.00 20.34 ATOM 115 N CYS A 15 4.325 -6.149 -6.330 1.00 13.23 ATOM 116 CA CYS A 15 3.110 -6.441 -7.130 1.00 13.58 ATOM 117 C CYS A 15 3.533 -7.211 -8.367 1.00 13.95 ATOM 118 O CYS A 15 4.646 -6.936 -8.869 1.00 15.38 ATOM 119 CB CYS A 15 2.402 -5.173 -7.581 1.00 13.92 ATOM 120 SG CYS A 15 1.906 -4.146 -6.182 1.00 13.23 ATOM 121 N VAL A 16 2.694 -8.133 -8.816 1.00 12.74 ATOM 122 CA VAL A 16 2.864 -8.797 -10.137 1.00 12.63 ATOM 123 C VAL A 16 1.628 -8.514 -10.978 1.00 13.12 ATOM 124 O VAL A 16 0.513 -8.698 -10.493 1.00 12.64 ATOM 125 CB VAL A 16 3.146 -10.297 -10.019 1.00 13.27 ATOM 126 CG1 VAL A 16 3.128 -10.948 -11.404 1.00 13.33 ATOM 127 CG2 VAL A 16 4.477 -10.549 -9.295 1.00 13.05 ATOM 128 N CYS A 17 1.856 -8.020 -12.196 1.00 13.29 ATOM 129 CA CYS A 17 0.796 -7.684 -13.166 1.00 13.75 ATOM 130 C CYS A 17 0.159 -8.977 -13.698 1.00 13.95 ATOM 131 O CYS A 17 0.876 -9.928 -14.012 1.00 13.14 ATOM 132 CB CYS A 17 1.396 -6.851 -14.279 1.00 13.67 ATOM 133 SG CYS A 17 0.127 -6.190 -15.369 1.00 14.62 ATOM 134 N ASN A 18 -1.161 -8.987 -13.822 1.00 15.59 ATOM 135 CA ASN A 18 -1.932 -10.164 -14.278 1.00 16.29 ATOM 136 C ASN A 18 -1.677 -10.347 -15.773 1.00 16.06 ATOM 137 O ASN A 18 -0.938 -9.561 -16.359 1.00 15.60 ATOM 138 CB ASN A 18 -3.414 -10.036 -13.911 1.00 17.82 ATOM 139 CG ASN A 18 -4.157 -9.002 -14.729 1.00 17.93 ATOM 140 OD1 ASN A 18 -3.595 -8.350 -15.600 1.00 17.53 ATOM 141 ND2 ASN A 18 -5.445 -8.878 -14.475 1.00 19.72 ATOM 142 N ARG A 19 -2.266 -11.383 -16.347 1.00 17.09 ATOM 143 CA ARG A 19 -1.908 -11.920 -17.679 1.00 19.64 ATOM 144 C ARG A 19 -2.299 -10.928 -18.781 1.00 19.74 ATOM 145 O ARG A 19 -1.619 -10.931 -19.835 1.00 17.75 ATOM 146 CB ARG A 19 -2.617 -13.256 -17.876 1.00 21.04 ATOM 147 CG ARG A 19 -1.872 -14.204 -18.795 1.00 24.56 ATOM 148 CD ARG A 19 -2.690 -15.460 -19.032 1.00 25.11 ATOM 149 NE ARG A 19 -2.252 -16.122 -20.251 1.00 25.13 ATOM 150 CZ ARG A 19 -1.146 -16.844 -20.345 1.00 23.56 ATOM 151 NH1 ARG A 19 -0.364 -17.001 -19.292 1.00 22.20 ATOM 152 NH2 ARG A 19 -0.851 -17.439 -21.492 1.00 25.75 ATOM 153 N ASP A 20 -3.348 -10.118 -18.583 1.00 19.50 ATOM 154 CA ASP A 20 -3.790 -9.206 -19.670 1.00 20.68 ATOM 155 C ASP A 20 -3.549 -7.735 -19.311 1.00 18.71 ATOM 156 O ASP A 20 -4.053 -6.889 -20.053 1.00 17.47 ATOM 157 CB ASP A 20 -5.218 -9.529 -20.104 1.00 24.79 ATOM 158 CG ASP A 20 -6.260 -9.271 -19.040 1.00 26.63 ATOM 159 OD1 ASP A 20 -5.871 -8.867 -17.923 1.00 27.81 ATOM 160 OD2 ASP A 20 -7.449 -9.498 -19.335 1.00 30.94 ATOM 161 N GLY A 21 -2.763 -7.431 -18.274 1.00 17.75 ATOM 162 CA GLY A 21 -2.262 -6.060 -18.021 1.00 17.63 ATOM 163 C GLY A 21 -3.320 -5.109 -17.466 1.00 19.74 ATOM 164 O GLY A 21 -3.162 -3.875 -17.618 1.00 19.64 ATOM 165 N THR A 22 -4.342 -5.631 -16.785 1.00 20.98 ATOM 166 CA THR A 22 -5.505 -4.835 -16.305 1.00 22.30 ATOM 167 C THR A 22 -5.579 -4.815 -14.774 1.00 21.37 ATOM 168 O THR A 22 -6.466 -4.136 -14.243 1.00 21.67 ATOM 169 CB THR A 22 -6.809 -5.416 -16.865 1.00 22.12 ATOM 170 OG1 THR A 22 -6.969 -6.722 -16.308 1.00 22.18 ATOM 171 CG2 THR A 22 -6.804 -5.475 -18.374 1.00 22.99 ATOM 172 N ASN A 23 -4.736 -5.583 -14.086 1.00 20.79 ATOM 173 CA ASN A 23 -4.782 -5.683 -12.607 1.00 21.26 ATOM 174 C ASN A 23 -3.466 -6.296 -12.121 1.00 18.49 ATOM 175 O ASN A 23 -2.686 -6.751 -12.949 1.00 18.59 ATOM 176 CB ASN A 23 -6.009 -6.457 -12.111 1.00 23.01 ATOM 177 CG ASN A 23 -6.685 -5.798 -10.921 1.00 27.00 ATOM 178 OD1 ASN A 23 -6.045 -5.495 -9.910 1.00 26.29 ATOM 179 ND2 ASN A 23 -7.987 -5.562 -11.026 1.00 29.52 ATOM 180 N ALA A 24 -3.249 -6.262 -10.813 1.00 16.79 ATOM 181 CA ALA A 24 -2.019 -6.692 -10.129 1.00 15.26 ATOM 182 C ALA A 24 -2.411 -7.336 -8.786 1.00 15.15 ATOM 183 O ALA A 24 -3.440 -6.932 -8.179 1.00 14.35 ATOM 184 CB ALA A 24 -1.117 -5.500 -9.973 1.00 15.17 ATOM 185 N ALA A 25 -1.694 -8.386 -8.389 1.00 14.21 ATOM 186 CA ALA A 25 -1.700 -8.906 -7.009 1.00 13.69 ATOM 187 C ALA A 25 -0.418 -8.404 -6.334 1.00 13.67 ATOM 188 O ALA A 25 0.664 -8.493 -6.931 1.00 12.53 ATOM 189 CB ALA A 25 -1.812 -10.397 -7.003 1.00 13.99 ATOM 190 N CYS A 26 -0.564 -7.837 -5.144 1.00 13.92 ATOM 191 CA CYS A 26 0.539 -7.217 -4.364 1.00 13.97 ATOM 192 C CYS A 26 0.628 -7.877 -2.983 1.00 14.17 ATOM 193 O CYS A 26 -0.413 -8.344 -2.455 1.00 14.07 ATOM 194 CB CYS A 26 0.326 -5.713 -4.192 1.00 13.94 ATOM 195 SG CYS A 26 0.055 -4.841 -5.750 1.00 14.00 ATOM 196 N THR A 27 1.826 -7.882 -2.409 1.00 14.35 ATOM 197 CA THR A 27 2.058 -8.259 -1.001 1.00 14.37 ATOM 198 C THR A 27 1.239 -7.288 -0.154 1.00 14.87 ATOM 199 O THR A 27 0.906 -6.187 -0.673 1.00 14.47 ATOM 200 CB THR A 27 3.564 -8.277 -0.680 1.00 14.46 ATOM 201 OG1 THR A 27 4.168 -7.028 -1.012 1.00 13.08 ATOM 202 CG2 THR A 27 4.297 -9.368 -1.434 1.00 14.45 ATOM 203 N LEU A 28 0.913 -7.679 1.077 1.00 15.72 ATOM 204 CA LEU A 28 0.057 -6.890 2.004 1.00 17.20 ATOM 205 C LEU A 28 0.867 -6.456 3.229 1.00 17.41 ATOM 206 O LEU A 28 0.396 -6.571 4.346 1.00 17.57 ATOM 207 CB LEU A 28 -1.162 -7.736 2.366 1.00 17.48 ATOM 208 CG LEU A 28 -2.020 -8.113 1.167 1.00 18.42 ATOM 209 CD1 LEU A 28 -3.038 -9.176 1.548 1.00 18.68 ATOM 210 CD2 LEU A 28 -2.706 -6.881 0.606 1.00 19.81 ATOM 211 N ARG A 29 2.063 -5.951 3.009 1.00 18.81 ATOM 212 CA ARG A 29 2.896 -5.392 4.102 1.00 20.41 ATOM 213 C ARG A 29 2.273 -4.068 4.530 1.00 18.15 ATOM 214 O ARG A 29 1.731 -3.358 3.672 1.00 17.80 ATOM 215 CB ARG A 29 4.330 -5.200 3.629 1.00 21.64 ATOM 216 CG ARG A 29 4.996 -6.470 3.129 1.00 24.62 ATOM 217 CD ARG A 29 6.350 -6.122 2.533 1.00 28.40 ATOM 218 NE ARG A 29 6.858 -7.343 1.960 1.00 34.90 ATOM 219 CZ ARG A 29 7.171 -7.533 0.692 1.00 32.01 ATOM 220 NH1 ARG A 29 7.118 -6.541 -0.176 1.00 34.33 ATOM 221 NH2 ARG A 29 7.595 -8.716 0.315 1.00 34.91 ATOM 222 N ALA A 30 2.352 -3.756 5.818 1.00 19.22 ATOM 223 CA ALA A 30 2.147 -2.395 6.352 1.00 17.75 ATOM 224 C ALA A 30 3.498 -1.698 6.228 1.00 17.97 ATOM 225 O ALA A 30 4.443 -2.119 6.903 1.00 17.35 ATOM 226 CB ALA A 30 1.656 -2.435 7.775 1.00 18.68 ATOM 227 N CYS A 31 3.583 -0.685 5.365 1.00 17.07 ATOM 228 CA CYS A 31 4.840 0.010 5.021 1.00 16.00 ATOM 229 C CYS A 31 5.236 0.998 6.125 1.00 16.71 ATOM 230 O CYS A 31 6.370 1.488 6.131 1.00 19.32 ATOM 231 CB CYS A 31 4.679 0.696 3.679 1.00 14.88 ATOM 232 SG CYS A 31 4.247 -0.523 2.421 1.00 14.33 ATOM 233 N LEU A 32 3.955 1.463 7.127 1.00 25.65 ATOM 234 CA LEU A 32 4.338 2.380 8.219 1.00 28.76 ATOM 235 C LEU A 32 4.031 1.670 9.529 1.00 31.30 ATOM 236 O LEU A 32 3.160 0.798 9.473 1.00 32.90 ATOM 237 CB LEU A 32 3.536 3.674 8.076 1.00 29.14 ATOM 238 CG LEU A 32 3.916 4.522 6.867 1.00 29.11 ATOM 239 CD1 LEU A 32 2.821 5.513 6.551 1.00 29.12 ATOM 240 CD2 LEU A 32 5.239 5.229 7.109 1.00 30.61 ATOM 241 OXT LEU A 32 4.653 1.968 10.553 1.00 38.99 ATOM 242 C1 GOL A 101 -4.845 -16.107 -14.018 1.00 49.81 ATOM 243 O1 GOL A 101 -3.740 -16.339 -13.146 1.00 50.98 ATOM 244 C2 GOL A 101 -4.807 -14.734 -14.664 1.00 47.77 ATOM 245 O2 GOL A 101 -5.079 -14.859 -16.055 1.00 48.52 ATOM 246 C3 GOL A 101 -3.496 -14.004 -14.511 1.00 45.52 ATOM 247 O3 GOL A 101 -3.534 -13.073 -13.441 1.00 51.14 ATOM 248 C1 GOL A 101 -6.404 -11.473 -9.262 1.00 37.43 ATOM 249 O1 GOL A 101 -7.251 -12.523 -9.709 1.00 38.80 ATOM 250 C2 GOL A 101 -4.971 -11.709 -9.694 1.00 39.64 ATOM 251 O2 GOL A 101 -4.897 -12.183 -11.041 1.00 40.16 ATOM 252 C3 GOL A 101 -4.167 -10.443 -9.602 1.00 38.32 ATOM 253 O3 GOL A 101 -4.513 -9.577 -10.673 1.00 40.96 TER