HETATM 1 C ACE A 0 -8.573 -0.693 6.588 1.00 1.00 C HETATM 2 O ACE A 0 -9.711 -0.235 6.503 1.00 1.00 O HETATM 3 CH3 ACE A 0 -7.537 0.000 7.404 1.00 1.00 C HETATM 4 H1 ACE A 0 -7.105 -0.704 8.116 1.00 1.00 H HETATM 5 H2 ACE A 0 -7.995 0.829 7.944 1.00 1.00 H HETATM 6 H3 ACE A 0 -6.753 0.381 6.749 1.00 1.00 H ATOM 7 N ASP A 1 -8.164 -1.802 5.989 1.00 1.00 N ATOM 8 CA ASP A 1 -9.069 -2.584 5.163 1.00 1.00 C ATOM 9 C ASP A 1 -10.006 -3.431 6.027 1.00 1.00 C ATOM 10 O ASP A 1 -9.634 -3.855 7.120 1.00 1.00 O ATOM 11 CB ASP A 1 -8.184 -3.513 4.330 1.00 1.00 C ATOM 12 CG ASP A 1 -7.395 -2.825 3.215 1.00 1.00 C ATOM 13 OD1 ASP A 1 -6.265 -2.380 3.510 1.00 1.00 O ATOM 14 OD2 ASP A 1 -7.940 -2.761 2.091 1.00 1.00 O ATOM 15 H ASP A 1 -7.236 -2.167 6.060 1.00 1.00 H ATOM 16 HA ASP A 1 -9.663 -1.892 4.567 1.00 1.00 H ATOM 17 HB2 ASP A 1 -7.481 -4.014 4.996 1.00 1.00 H ATOM 18 HB3 ASP A 1 -8.811 -4.287 3.888 1.00 1.00 H ATOM 19 N ALA A 2 -11.203 -3.652 5.503 1.00 1.00 N ATOM 20 CA ALA A 2 -12.174 -4.491 6.185 1.00 1.00 C ATOM 21 C ALA A 2 -11.777 -5.959 6.023 1.00 1.00 C ATOM 22 O ALA A 2 -12.063 -6.783 6.890 1.00 1.00 O ATOM 23 CB ALA A 2 -13.573 -4.202 5.636 1.00 1.00 C ATOM 24 H ALA A 2 -11.512 -3.271 4.632 1.00 1.00 H ATOM 25 HA ALA A 2 -12.152 -4.232 7.243 1.00 1.00 H ATOM 26 HB1 ALA A 2 -13.810 -3.148 5.782 1.00 1.00 H ATOM 27 HB2 ALA A 2 -13.601 -4.437 4.572 1.00 1.00 H ATOM 28 HB3 ALA A 2 -14.304 -4.815 6.163 1.00 1.00 H ATOM 29 N GLU A 3 -11.123 -6.243 4.906 1.00 1.00 N ATOM 30 CA GLU A 3 -10.653 -7.590 4.634 1.00 1.00 C ATOM 31 C GLU A 3 -9.163 -7.708 4.959 1.00 1.00 C ATOM 32 O GLU A 3 -8.416 -6.740 4.826 1.00 1.00 O ATOM 33 CB GLU A 3 -10.931 -7.986 3.183 1.00 1.00 C ATOM 34 CG GLU A 3 -10.624 -9.467 2.950 1.00 1.00 C ATOM 35 CD GLU A 3 -11.408 -10.350 3.923 1.00 1.00 C ATOM 36 OE1 GLU A 3 -12.601 -10.590 3.636 1.00 1.00 O ATOM 37 OE2 GLU A 3 -10.798 -10.764 4.932 1.00 1.00 O ATOM 38 H GLU A 3 -10.914 -5.571 4.194 1.00 1.00 H ATOM 39 HA GLU A 3 -11.228 -8.237 5.297 1.00 1.00 H ATOM 40 HB2 GLU A 3 -11.975 -7.786 2.941 1.00 1.00 H ATOM 41 HB3 GLU A 3 -10.326 -7.376 2.513 1.00 1.00 H ATOM 42 HG2 GLU A 3 -10.876 -9.737 1.924 1.00 1.00 H ATOM 43 HG3 GLU A 3 -9.556 -9.644 3.073 1.00 1.00 H ATOM 44 N PHE A 4 -8.774 -8.903 5.378 1.00 1.00 N ATOM 45 CA PHE A 4 -7.390 -9.154 5.744 1.00 1.00 C ATOM 46 C PHE A 4 -6.452 -8.866 4.571 1.00 1.00 C ATOM 47 O PHE A 4 -6.415 -9.620 3.600 1.00 1.00 O ATOM 48 CB PHE A 4 -7.286 -10.636 6.113 1.00 1.00 C ATOM 49 CG PHE A 4 -5.894 -11.065 6.579 1.00 1.00 C ATOM 50 CD1 PHE A 4 -5.405 -10.613 7.765 1.00 1.00 C ATOM 51 CD2 PHE A 4 -5.145 -11.898 5.808 1.00 1.00 C ATOM 52 CE1 PHE A 4 -4.112 -11.012 8.198 1.00 1.00 C ATOM 53 CE2 PHE A 4 -3.853 -12.296 6.241 1.00 1.00 C ATOM 54 CZ PHE A 4 -3.363 -11.845 7.427 1.00 1.00 C ATOM 55 H PHE A 4 -9.384 -9.690 5.470 1.00 1.00 H ATOM 56 HA PHE A 4 -7.149 -8.488 6.573 1.00 1.00 H ATOM 57 HB2 PHE A 4 -8.006 -10.855 6.901 1.00 1.00 H ATOM 58 HB3 PHE A 4 -7.569 -11.235 5.247 1.00 1.00 H ATOM 59 HD1 PHE A 4 -6.005 -9.946 8.383 1.00 1.00 H ATOM 60 HD2 PHE A 4 -5.537 -12.260 4.857 1.00 1.00 H ATOM 61 HE1 PHE A 4 -3.720 -10.650 9.149 1.00 1.00 H ATOM 62 HE2 PHE A 4 -3.253 -12.964 5.622 1.00 1.00 H ATOM 63 HZ PHE A 4 -2.371 -12.151 7.759 1.00 1.00 H ATOM 64 N ARG A 5 -5.715 -7.772 4.699 1.00 1.00 N ATOM 65 CA ARG A 5 -4.772 -7.379 3.665 1.00 1.00 C ATOM 66 C ARG A 5 -3.490 -6.833 4.296 1.00 1.00 C ATOM 67 O ARG A 5 -3.543 -5.978 5.179 1.00 1.00 O ATOM 68 CB ARG A 5 -5.374 -6.314 2.747 1.00 1.00 C ATOM 69 CG ARG A 5 -6.422 -6.923 1.813 1.00 1.00 C ATOM 70 CD ARG A 5 -7.001 -5.864 0.873 1.00 1.00 C ATOM 71 NE ARG A 5 -6.024 -5.541 -0.190 1.00 1.00 N ATOM 72 CZ ARG A 5 -5.462 -4.336 -0.354 1.00 1.00 C ATOM 73 NH1 ARG A 5 -5.845 -3.308 0.415 1.00 1.00 N ATOM 74 NH2 ARG A 5 -4.517 -4.158 -1.287 1.00 1.00 N ATOM 75 H ARG A 5 -5.755 -7.160 5.489 1.00 1.00 H ATOM 76 HA ARG A 5 -4.576 -8.293 3.106 1.00 1.00 H ATOM 77 HB2 ARG A 5 -5.831 -5.527 3.348 1.00 1.00 H ATOM 78 HB3 ARG A 5 -4.584 -5.847 2.158 1.00 1.00 H ATOM 79 HG2 ARG A 5 -5.971 -7.725 1.229 1.00 1.00 H ATOM 80 HG3 ARG A 5 -7.223 -7.370 2.402 1.00 1.00 H ATOM 81 HD2 ARG A 5 -7.928 -6.228 0.429 1.00 1.00 H ATOM 82 HD3 ARG A 5 -7.249 -4.964 1.436 1.00 1.00 H ATOM 83 HE ARG A 5 -5.766 -6.269 -0.826 1.00 1.00 H ATOM 84 HH11 ARG A 5 -6.633 -3.406 1.024 1.00 1.00 H ATOM 85 HH12 ARG A 5 -5.344 -2.443 0.381 1.00 1.00 H ATOM 86 HH21 ARG A 5 -4.302 -4.896 -1.928 1.00 1.00 H ATOM 87 HH22 ARG A 5 -4.027 -3.288 -1.343 1.00 1.00 H ATOM 88 N HIS A 6 -2.367 -7.350 3.818 1.00 1.00 N ATOM 89 CA HIS A 6 -1.072 -6.879 4.279 1.00 1.00 C ATOM 90 C HIS A 6 -0.834 -5.454 3.774 1.00 1.00 C ATOM 91 O HIS A 6 0.009 -4.735 4.308 1.00 1.00 O ATOM 92 CB HIS A 6 0.037 -7.848 3.863 1.00 1.00 C ATOM 93 CG HIS A 6 -0.237 -9.288 4.225 1.00 1.00 C ATOM 94 ND1 HIS A 6 0.085 -9.825 5.460 1.00 1.00 N ATOM 95 CD2 HIS A 6 -0.807 -10.295 3.504 1.00 1.00 C ATOM 96 CE1 HIS A 6 -0.278 -11.099 5.469 1.00 1.00 C ATOM 97 NE2 HIS A 6 -0.830 -11.389 4.256 1.00 1.00 N ATOM 98 H HIS A 6 -2.333 -8.075 3.131 1.00 1.00 H ATOM 99 HA HIS A 6 -1.112 -6.867 5.368 1.00 1.00 H ATOM 100 HB2 HIS A 6 0.183 -7.776 2.785 1.00 1.00 H ATOM 101 HB3 HIS A 6 0.971 -7.537 4.332 1.00 1.00 H ATOM 102 HD2 HIS A 6 -1.180 -10.216 2.483 1.00 1.00 H ATOM 103 HE1 HIS A 6 -0.157 -11.793 6.300 1.00 1.00 H ATOM 104 HE2 HIS A 6 -1.244 -12.262 3.999 1.00 1.00 H ATOM 105 N ASP A 7 -1.593 -5.089 2.751 1.00 1.00 N ATOM 106 CA ASP A 7 -1.469 -3.766 2.162 1.00 1.00 C ATOM 107 C ASP A 7 -2.082 -2.732 3.109 1.00 1.00 C ATOM 108 O ASP A 7 -1.919 -1.529 2.909 1.00 1.00 O ATOM 109 CB ASP A 7 -2.214 -3.685 0.828 1.00 1.00 C ATOM 110 CG ASP A 7 -1.917 -2.436 -0.003 1.00 1.00 C ATOM 111 OD1 ASP A 7 -0.744 -2.004 0.021 1.00 1.00 O ATOM 112 OD2 ASP A 7 -2.869 -1.941 -0.644 1.00 1.00 O ATOM 113 H ASP A 7 -2.281 -5.678 2.326 1.00 1.00 H ATOM 114 HA ASP A 7 -0.400 -3.617 2.016 1.00 1.00 H ATOM 115 HB2 ASP A 7 -1.964 -4.566 0.236 1.00 1.00 H ATOM 116 HB3 ASP A 7 -3.286 -3.727 1.024 1.00 1.00 H ATOM 117 N SER A 8 -2.773 -3.238 4.119 1.00 1.00 N ATOM 118 CA SER A 8 -3.412 -2.373 5.097 1.00 1.00 C ATOM 119 C SER A 8 -2.351 -1.674 5.949 1.00 1.00 C ATOM 120 O SER A 8 -2.658 -0.733 6.680 1.00 1.00 O ATOM 121 CB SER A 8 -4.372 -3.164 5.988 1.00 1.00 C ATOM 122 OG SER A 8 -5.074 -2.320 6.897 1.00 1.00 O ATOM 123 H SER A 8 -2.900 -4.218 4.275 1.00 1.00 H ATOM 124 HA SER A 8 -3.975 -1.645 4.513 1.00 1.00 H ATOM 125 HB2 SER A 8 -5.088 -3.699 5.364 1.00 1.00 H ATOM 126 HB3 SER A 8 -3.814 -3.914 6.547 1.00 1.00 H ATOM 127 HG SER A 8 -4.481 -1.572 7.196 1.00 1.00 H ATOM 128 N GLY A 9 -1.125 -2.160 5.827 1.00 1.00 N ATOM 129 CA GLY A 9 -0.010 -1.568 6.547 1.00 1.00 C ATOM 130 C GLY A 9 0.573 -0.383 5.776 1.00 1.00 C ATOM 131 O GLY A 9 1.761 -0.370 5.456 1.00 1.00 O ATOM 132 H GLY A 9 -0.888 -2.942 5.251 1.00 1.00 H ATOM 133 HA2 GLY A 9 -0.343 -1.238 7.531 1.00 1.00 H ATOM 134 HA3 GLY A 9 0.764 -2.319 6.707 1.00 1.00 H ATOM 135 N TYR A 10 -0.289 0.585 5.500 1.00 1.00 N ATOM 136 CA TYR A 10 0.114 1.748 4.729 1.00 1.00 C ATOM 137 C TYR A 10 -0.653 2.995 5.176 1.00 1.00 C ATOM 138 O TYR A 10 -1.795 2.898 5.624 1.00 1.00 O ATOM 139 CB TYR A 10 -0.247 1.437 3.275 1.00 1.00 C ATOM 140 CG TYR A 10 0.500 2.293 2.251 1.00 1.00 C ATOM 141 CD1 TYR A 10 0.051 3.564 1.956 1.00 1.00 C ATOM 142 CD2 TYR A 10 1.623 1.795 1.623 1.00 1.00 C ATOM 143 CE1 TYR A 10 0.754 4.370 0.991 1.00 1.00 C ATOM 144 CE2 TYR A 10 2.326 2.601 0.659 1.00 1.00 C ATOM 145 CZ TYR A 10 1.857 3.849 0.391 1.00 1.00 C ATOM 146 OH TYR A 10 2.521 4.610 -0.520 1.00 1.00 O ATOM 147 H TYR A 10 -1.245 0.582 5.793 1.00 1.00 H ATOM 148 HA TYR A 10 1.179 1.908 4.893 1.00 1.00 H ATOM 149 HB2 TYR A 10 -0.037 0.386 3.077 1.00 1.00 H ATOM 150 HB3 TYR A 10 -1.319 1.578 3.139 1.00 1.00 H ATOM 151 HD1 TYR A 10 -0.836 3.958 2.452 1.00 1.00 H ATOM 152 HD2 TYR A 10 1.978 0.791 1.856 1.00 1.00 H ATOM 153 HE1 TYR A 10 0.410 5.376 0.749 1.00 1.00 H ATOM 154 HE2 TYR A 10 3.215 2.220 0.155 1.00 1.00 H ATOM 155 HH TYR A 10 2.111 5.521 -0.569 1.00 1.00 H ATOM 156 N GLU A 11 0.005 4.136 5.039 1.00 1.00 N ATOM 157 CA GLU A 11 -0.601 5.400 5.421 1.00 1.00 C ATOM 158 C GLU A 11 -0.424 6.433 4.306 1.00 1.00 C ATOM 159 O GLU A 11 0.438 6.277 3.442 1.00 1.00 O ATOM 160 CB GLU A 11 -0.017 5.912 6.740 1.00 1.00 C ATOM 161 CG GLU A 11 -1.066 6.685 7.541 1.00 1.00 C ATOM 162 CD GLU A 11 -0.423 7.430 8.712 1.00 1.00 C ATOM 163 OE1 GLU A 11 0.319 6.766 9.468 1.00 1.00 O ATOM 164 OE2 GLU A 11 -0.686 8.647 8.824 1.00 1.00 O ATOM 165 H GLU A 11 0.934 4.206 4.675 1.00 1.00 H ATOM 166 HA GLU A 11 -1.660 5.183 5.560 1.00 1.00 H ATOM 167 HB2 GLU A 11 0.349 5.071 7.330 1.00 1.00 H ATOM 168 HB3 GLU A 11 0.839 6.556 6.537 1.00 1.00 H ATOM 169 HG2 GLU A 11 -1.575 7.396 6.889 1.00 1.00 H ATOM 170 HG3 GLU A 11 -1.824 5.997 7.915 1.00 1.00 H ATOM 171 N VAL A 12 -1.254 7.464 4.361 1.00 1.00 N ATOM 172 CA VAL A 12 -1.251 8.483 3.325 1.00 1.00 C ATOM 173 C VAL A 12 -0.040 9.398 3.519 1.00 1.00 C ATOM 174 O VAL A 12 -0.172 10.506 4.038 1.00 1.00 O ATOM 175 CB VAL A 12 -2.580 9.241 3.333 1.00 1.00 C ATOM 176 CG1 VAL A 12 -2.669 10.204 2.147 1.00 1.00 C ATOM 177 CG2 VAL A 12 -3.764 8.271 3.342 1.00 1.00 C ATOM 178 H VAL A 12 -1.918 7.609 5.095 1.00 1.00 H ATOM 179 HA VAL A 12 -1.157 7.976 2.365 1.00 1.00 H ATOM 180 HB VAL A 12 -2.624 9.831 4.248 1.00 1.00 H ATOM 181 HG11 VAL A 12 -1.818 10.885 2.167 1.00 1.00 H ATOM 182 HG12 VAL A 12 -2.659 9.636 1.217 1.00 1.00 H ATOM 183 HG13 VAL A 12 -3.594 10.776 2.213 1.00 1.00 H ATOM 184 HG21 VAL A 12 -3.807 7.760 4.304 1.00 1.00 H ATOM 185 HG22 VAL A 12 -4.689 8.825 3.183 1.00 1.00 H ATOM 186 HG23 VAL A 12 -3.638 7.537 2.546 1.00 1.00 H ATOM 187 N HIS A 13 1.112 8.901 3.093 1.00 1.00 N ATOM 188 CA HIS A 13 2.337 9.678 3.171 1.00 1.00 C ATOM 189 C HIS A 13 3.136 9.508 1.877 1.00 1.00 C ATOM 190 O HIS A 13 3.539 10.491 1.258 1.00 1.00 O ATOM 191 CB HIS A 13 3.140 9.303 4.418 1.00 1.00 C ATOM 192 CG HIS A 13 2.521 9.774 5.712 1.00 1.00 C ATOM 193 ND1 HIS A 13 3.071 10.784 6.482 1.00 1.00 N ATOM 194 CD2 HIS A 13 1.394 9.365 6.362 1.00 1.00 C ATOM 195 CE1 HIS A 13 2.302 10.965 7.546 1.00 1.00 C ATOM 196 NE2 HIS A 13 1.263 10.084 7.470 1.00 1.00 N ATOM 197 H HIS A 13 1.215 7.987 2.701 1.00 1.00 H ATOM 198 HA HIS A 13 2.039 10.722 3.269 1.00 1.00 H ATOM 199 HB2 HIS A 13 3.251 8.220 4.454 1.00 1.00 H ATOM 200 HB3 HIS A 13 4.142 9.724 4.332 1.00 1.00 H ATOM 201 HD2 HIS A 13 0.715 8.579 6.028 1.00 1.00 H ATOM 202 HE1 HIS A 13 2.469 11.690 8.342 1.00 1.00 H ATOM 203 HE2 HIS A 13 0.495 10.034 8.109 1.00 1.00 H ATOM 204 N HIS A 14 3.341 8.252 1.507 1.00 1.00 N ATOM 205 CA HIS A 14 4.076 7.940 0.293 1.00 1.00 C ATOM 206 C HIS A 14 3.094 7.704 -0.856 1.00 1.00 C ATOM 207 O HIS A 14 1.954 7.301 -0.629 1.00 1.00 O ATOM 208 CB HIS A 14 5.020 6.757 0.519 1.00 1.00 C ATOM 209 CG HIS A 14 5.785 6.339 -0.714 1.00 1.00 C ATOM 210 ND1 HIS A 14 6.680 7.173 -1.360 1.00 1.00 N ATOM 211 CD2 HIS A 14 5.781 5.166 -1.410 1.00 1.00 C ATOM 212 CE1 HIS A 14 7.185 6.522 -2.397 1.00 1.00 C ATOM 213 NE2 HIS A 14 6.626 5.279 -2.427 1.00 1.00 N ATOM 214 H HIS A 14 3.014 7.458 2.020 1.00 1.00 H ATOM 215 HA HIS A 14 4.687 8.813 0.064 1.00 1.00 H ATOM 216 HB2 HIS A 14 5.730 7.017 1.304 1.00 1.00 H ATOM 217 HB3 HIS A 14 4.441 5.907 0.881 1.00 1.00 H ATOM 218 HD2 HIS A 14 5.184 4.285 -1.171 1.00 1.00 H ATOM 219 HE1 HIS A 14 7.918 6.912 -3.103 1.00 1.00 H ATOM 220 HE2 HIS A 14 6.863 4.550 -3.070 1.00 1.00 H ATOM 221 N GLN A 15 3.572 7.964 -2.063 1.00 1.00 N ATOM 222 CA GLN A 15 2.752 7.778 -3.249 1.00 1.00 C ATOM 223 C GLN A 15 2.429 6.295 -3.442 1.00 1.00 C ATOM 224 O GLN A 15 3.313 5.499 -3.756 1.00 1.00 O ATOM 225 CB GLN A 15 3.441 8.355 -4.487 1.00 1.00 C ATOM 226 CG GLN A 15 3.560 9.877 -4.389 1.00 1.00 C ATOM 227 CD GLN A 15 4.209 10.458 -5.647 1.00 1.00 C ATOM 228 OE1 GLN A 15 5.230 9.990 -6.123 1.00 1.00 O ATOM 229 NE2 GLN A 15 3.561 11.502 -6.156 1.00 1.00 N ATOM 230 H GLN A 15 4.498 8.297 -2.238 1.00 1.00 H ATOM 231 HA GLN A 15 1.835 8.335 -3.058 1.00 1.00 H ATOM 232 HB2 GLN A 15 4.432 7.915 -4.595 1.00 1.00 H ATOM 233 HB3 GLN A 15 2.875 8.088 -5.380 1.00 1.00 H ATOM 234 HG2 GLN A 15 2.572 10.315 -4.249 1.00 1.00 H ATOM 235 HG3 GLN A 15 4.153 10.143 -3.514 1.00 1.00 H ATOM 236 HE21 GLN A 15 2.731 11.840 -5.713 1.00 1.00 H ATOM 237 HE22 GLN A 15 3.904 11.949 -6.983 1.00 1.00 H ATOM 238 N LYS A 16 1.160 5.968 -3.247 1.00 1.00 N ATOM 239 CA LYS A 16 0.712 4.592 -3.377 1.00 1.00 C ATOM 240 C LYS A 16 0.447 4.284 -4.852 1.00 1.00 C ATOM 241 O LYS A 16 -0.693 4.036 -5.243 1.00 1.00 O ATOM 242 CB LYS A 16 -0.491 4.332 -2.468 1.00 1.00 C ATOM 243 CG LYS A 16 -0.678 2.833 -2.222 1.00 1.00 C ATOM 244 CD LYS A 16 -1.902 2.570 -1.343 1.00 1.00 C ATOM 245 CE LYS A 16 -2.050 1.078 -1.040 1.00 1.00 C ATOM 246 NZ LYS A 16 -1.031 0.645 -0.058 1.00 1.00 N ATOM 247 H LYS A 16 0.445 6.624 -3.004 1.00 1.00 H ATOM 248 HA LYS A 16 1.523 3.951 -3.030 1.00 1.00 H ATOM 249 HB2 LYS A 16 -0.351 4.845 -1.517 1.00 1.00 H ATOM 250 HB3 LYS A 16 -1.391 4.744 -2.923 1.00 1.00 H ATOM 251 HG2 LYS A 16 -0.792 2.316 -3.175 1.00 1.00 H ATOM 252 HG3 LYS A 16 0.212 2.426 -1.743 1.00 1.00 H ATOM 253 HD2 LYS A 16 -1.811 3.127 -0.411 1.00 1.00 H ATOM 254 HD3 LYS A 16 -2.799 2.933 -1.845 1.00 1.00 H ATOM 255 HE2 LYS A 16 -3.048 0.876 -0.651 1.00 1.00 H ATOM 256 HE3 LYS A 16 -1.944 0.502 -1.960 1.00 1.00 H ATOM 257 HZ1 LYS A 16 -1.217 1.075 0.826 1.00 1.00 H ATOM 258 HZ2 LYS A 16 -1.064 -0.349 0.041 1.00 1.00 H ATOM 259 HZ3 LYS A 16 -0.123 0.918 -0.377 1.00 1.00 H HETATM 260 N NH2 A 17 1.519 4.310 -5.631 1.00 1.00 N HETATM 261 HN1 NH2 A 17 1.430 4.116 -6.622 1.00 1.00 H HETATM 262 HN2 NH2 A 17 2.428 4.523 -5.236 1.00 1.00 H TER 263 NH2 A 17