HEADER HISTOCOMPATIBILITY ANTIGEN 15-OCT-87 1HLA TITLE STRUCTURE OF THE HUMAN CLASS I HISTOCOMPATIBILITY ANTIGEN, HLA-A2 COMPND MOL_ID: 1; COMPND 2 MOLECULE: CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-A2) (ALPHA CHAIN); COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.50 ANGSTORMS DBREF 1HLA A 1 270 UNP P01892 1A02_HUMAN 25 294 SEQRES 1 A 181 GLY SER HIS SER MET ARG TYR PHE PHE THR SER VAL SER SEQRES 2 A 181 ARG PRO GLY ARG GLY GLU PRO ARG PHE ILE ALA VAL GLY SEQRES 3 A 181 TYR VAL ASP ASP THR GLN PHE VAL ARG PHE ASP SER ASP SEQRES 4 A 181 ALA ALA SER GLN ARG MET GLU PRO ARG ALA PRO TRP ILE SEQRES 5 A 181 GLU GLN GLU GLY PRO GLU TYR TRP ASP GLY GLU THR ARG SEQRES 6 A 181 LYS VAL LYS ALA HIS SER GLN THR HIS ARG VAL ASP LEU SEQRES 7 A 181 GLY THR LEU ARG GLY TYR TYR ASN GLN SER GLU ALA GLY SEQRES 8 A 181 SER HIS THR VAL GLN ARG MET TYR GLY CYS ASP VAL GLY SEQRES 9 A 181 SER ASP TRP ARG PHE LEU ARG GLY TYR HIS GLN TYR ALA SEQRES 10 A 181 TYR ASP GLY LYS ASP TYR ILE ALA LEU LYS GLU ASP LEU SEQRES 11 A 181 ARG SER TRP THR ALA ALA ASP MET ALA ALA GLN THR THR SEQRES 12 A 181 LYS HIS LYS TRP GLU ALA ALA HIS VAL ALA GLU GLN LEU SEQRES 13 A 181 ARG ALA TYR LEU GLU GLY THR CYS VAL GLU TRP LEU ARG SEQRES 14 A 181 ARG TYR LEU GLU ASN GLY LYS GLU THR LEU GLN ARG ATOM 1 CA GLY A 1 50.608 50.107 101.030 1.00 0.00 ATOM 2 CA SER A 2 49.509 48.255 100.516 1.00 0.00 ATOM 3 CA HIS A 3 51.941 45.133 99.736 1.00 0.00 ATOM 4 CA SER A 4 51.863 41.155 99.362 1.00 0.00 ATOM 5 CA MET A 5 54.284 38.235 98.788 1.00 0.00 ATOM 6 CA ARG A 6 52.642 35.204 97.269 1.00 0.00 ATOM 7 CA TYR A 7 53.730 31.719 96.427 1.00 0.00 ATOM 8 CA PHE A 8 52.461 30.097 93.519 1.00 0.00 ATOM 9 CA PHE A 9 53.452 26.829 92.353 1.00 0.00 ATOM 10 CA THR A 10 52.654 24.304 89.769 1.00 0.00 ATOM 11 CA SER A 11 53.338 20.503 89.337 1.00 0.00 ATOM 12 CA VAL A 12 52.623 18.209 86.765 1.00 0.00 ATOM 13 CA SER A 13 53.470 14.032 86.749 1.00 0.00 ATOM 14 CA ARG A 14 54.237 12.060 83.490 1.00 0.00 ATOM 15 CA PRO A 15 55.796 8.396 82.749 1.00 0.00 ATOM 16 CA GLY A 16 58.939 6.349 82.258 1.00 0.00 ATOM 17 CA ARG A 17 60.617 9.609 82.444 1.00 0.00 ATOM 18 CA GLY A 18 60.771 12.295 84.964 1.00 0.00 ATOM 19 CA GLU A 19 60.646 13.373 88.216 1.00 0.00 ATOM 20 CA PRO A 20 58.040 15.950 88.324 1.00 0.00 ATOM 21 CA ARG A 21 58.181 19.291 87.030 1.00 0.00 ATOM 22 CA PHE A 22 58.167 21.959 89.562 1.00 0.00 ATOM 23 CA ILE A 23 58.343 25.547 89.456 1.00 0.00 ATOM 24 CA ALA A 24 57.732 28.121 92.088 1.00 0.00 ATOM 25 CA VAL A 25 57.316 31.384 91.472 1.00 0.00 ATOM 26 CA GLY A 26 56.791 33.841 94.084 1.00 0.00 ATOM 27 CA TYR A 27 56.123 37.437 93.151 1.00 0.00 ATOM 28 CA VAL A 28 56.058 40.236 95.751 1.00 0.00 ATOM 29 CA ASP A 29 53.795 43.286 94.601 1.00 0.00 ATOM 30 CA ASP A 30 53.837 42.256 90.991 1.00 0.00 ATOM 31 CA THR A 31 57.126 40.305 90.185 1.00 0.00 ATOM 32 CA GLN A 32 59.907 38.538 91.699 1.00 0.00 ATOM 33 CA PHE A 33 60.617 35.594 90.239 1.00 0.00 ATOM 34 CA VAL A 34 62.220 33.154 91.666 1.00 0.00 ATOM 35 CA ARG A 35 61.936 30.639 89.420 1.00 0.00 ATOM 36 CA PHE A 36 62.850 27.455 89.639 1.00 0.00 ATOM 37 CA ASP A 37 61.938 25.593 86.484 1.00 0.00 ATOM 38 CA SER A 38 63.620 22.425 87.302 1.00 0.00 ATOM 39 CA ASP A 39 64.263 20.883 83.987 1.00 0.00 ATOM 40 CA ALA A 40 66.552 23.250 85.223 1.00 0.00 ATOM 41 CA ALA A 41 69.821 23.766 84.028 1.00 0.00 ATOM 42 CA SER A 42 71.395 24.306 87.113 1.00 0.00 ATOM 43 CA GLN A 43 69.470 23.072 89.887 1.00 0.00 ATOM 44 CA ARG A 44 69.896 26.154 91.350 1.00 0.00 ATOM 45 CA MET A 45 67.174 28.580 92.796 1.00 0.00 ATOM 46 CA GLU A 46 67.437 31.585 90.897 1.00 0.00 ATOM 47 CA PRO A 47 67.245 34.904 92.165 1.00 0.00 ATOM 48 CA ARG A 48 65.912 37.181 89.154 1.00 0.00 ATOM 49 CA ALA A 49 64.782 40.496 90.510 1.00 0.00 ATOM 50 CA PRO A 50 67.863 42.916 91.623 1.00 0.00 ATOM 51 CA TRP A 51 67.314 43.880 95.513 1.00 0.00 ATOM 52 CA ILE A 52 67.558 40.162 96.443 1.00 0.00 ATOM 53 CA GLU A 53 70.855 39.424 94.522 1.00 0.00 ATOM 54 CA GLN A 54 72.040 41.749 97.102 1.00 0.00 ATOM 55 CA GLU A 55 71.062 38.765 99.172 1.00 0.00 ATOM 56 CA GLY A 56 73.456 36.211 99.822 1.00 0.00 ATOM 57 CA PRO A 57 74.342 32.874 101.043 1.00 0.00 ATOM 58 CA GLU A 58 72.551 31.229 102.871 1.00 0.00 ATOM 59 CA TYR A 59 69.144 32.972 102.235 1.00 0.00 ATOM 60 CA TRP A 60 69.215 32.114 99.349 1.00 0.00 ATOM 61 CA ASP A 61 70.526 28.290 99.841 1.00 0.00 ATOM 62 CA GLY A 62 68.152 27.835 102.720 1.00 0.00 ATOM 63 CA GLU A 63 65.946 28.676 99.670 1.00 0.00 ATOM 64 CA THR A 64 67.019 25.736 97.472 1.00 0.00 ATOM 65 CA ARG A 65 66.197 23.728 99.626 1.00 0.00 ATOM 66 CA LYS A 66 63.017 24.743 101.279 1.00 0.00 ATOM 67 CA VAL A 67 61.766 24.616 97.777 1.00 0.00 ATOM 68 CA LYS A 68 63.067 21.460 96.352 1.00 0.00 ATOM 69 CA ALA A 69 62.315 19.420 99.365 1.00 0.00 ATOM 70 CA HIS A 70 59.073 21.057 98.734 1.00 0.00 ATOM 71 CA SER A 71 58.698 19.556 95.350 1.00 0.00 ATOM 72 CA GLN A 72 58.949 16.265 96.470 1.00 0.00 ATOM 73 CA THR A 73 56.213 16.532 98.885 1.00 0.00 ATOM 74 CA HIS A 74 53.913 17.801 96.024 1.00 0.00 ATOM 75 CA ARG A 75 55.004 14.777 93.831 1.00 0.00 ATOM 76 CA VAL A 76 53.834 12.368 96.223 1.00 0.00 ATOM 77 CA ASP A 77 50.640 13.950 96.368 1.00 0.00 ATOM 78 CA LEU A 78 50.107 12.856 92.826 1.00 0.00 ATOM 79 CA GLY A 79 50.526 9.196 93.954 1.00 0.00 ATOM 80 CA THR A 80 48.788 9.923 97.168 1.00 0.00 ATOM 81 CA LEU A 81 46.022 11.567 94.872 1.00 0.00 ATOM 82 CA ARG A 82 44.893 9.578 91.749 1.00 0.00 ATOM 83 CA GLY A 83 45.151 7.030 94.723 1.00 0.00 ATOM 84 CA TYR A 84 43.320 8.413 96.432 1.00 0.00 ATOM 85 CA TYR A 85 40.661 9.316 94.522 1.00 0.00 ATOM 86 CA ASN A 86 41.298 6.718 91.776 1.00 0.00 ATOM 87 CA GLN A 87 42.689 8.538 88.059 1.00 0.00 ATOM 88 CA SER A 88 45.306 6.459 85.960 1.00 0.00 ATOM 89 CA GLU A 89 49.637 6.046 85.613 1.00 0.00 ATOM 90 CA ALA A 90 48.803 6.832 82.219 1.00 0.00 ATOM 91 CA GLY A 91 48.378 10.167 80.401 1.00 0.00 ATOM 92 CA SER A 92 48.287 11.487 83.897 1.00 0.00 ATOM 93 CA HIS A 93 47.878 15.326 84.755 1.00 0.00 ATOM 94 CA THR A 94 48.651 18.515 87.508 1.00 0.00 ATOM 95 CA VAL A 95 48.976 20.129 91.334 1.00 0.00 ATOM 96 CA GLN A 96 48.926 23.918 92.316 1.00 0.00 ATOM 97 CA ARG A 97 49.415 25.690 95.722 1.00 0.00 ATOM 98 CA MET A 98 48.730 29.574 97.221 1.00 0.00 ATOM 99 CA TYR A 99 50.953 30.792 100.001 1.00 0.00 ATOM 100 CA GLY A 100 50.339 34.572 100.363 1.00 0.00 ATOM 101 CA CYS A 101 50.999 37.466 102.541 1.00 0.00 ATOM 102 CA ASP A 102 49.240 40.234 102.615 1.00 0.00 ATOM 103 CA VAL A 103 49.994 43.026 104.642 1.00 0.00 ATOM 104 CA GLY A 104 48.553 46.458 104.519 1.00 0.00 ATOM 105 CA SER A 105 49.343 49.682 105.858 1.00 0.00 ATOM 106 CA ASP A 106 50.393 50.384 109.330 1.00 0.00 ATOM 107 CA TRP A 107 51.782 47.967 107.340 1.00 0.00 ATOM 108 CA ARG A 108 50.900 44.637 109.241 1.00 0.00 ATOM 109 CA PHE A 109 48.042 41.856 108.661 1.00 0.00 ATOM 110 CA LEU A 110 44.950 41.181 106.465 1.00 0.00 ATOM 111 CA ARG A 111 46.143 37.998 106.600 1.00 0.00 ATOM 112 CA GLY A 112 47.730 35.700 104.798 1.00 0.00 ATOM 113 CA TYR A 113 46.191 33.396 102.427 1.00 0.00 ATOM 114 CA HIS A 114 47.158 29.281 101.572 1.00 0.00 ATOM 115 CA GLN A 115 45.224 27.464 98.656 1.00 0.00 ATOM 116 CA TYR A 116 45.249 24.171 96.407 1.00 0.00 ATOM 117 CA ALA A 117 43.992 22.729 93.486 1.00 0.00 ATOM 118 CA TYR A 118 44.745 19.657 91.819 1.00 0.00 ATOM 119 CA ASP A 119 43.669 19.787 88.219 1.00 0.00 ATOM 120 CA GLY A 120 41.438 22.708 89.367 1.00 0.00 ATOM 121 CA LYS A 121 39.948 23.825 92.594 1.00 0.00 ATOM 122 CA ASP A 122 39.777 21.652 95.183 1.00 0.00 ATOM 123 CA TYR A 123 41.320 20.148 97.916 1.00 0.00 ATOM 124 CA ILE A 124 41.782 22.595 100.789 1.00 0.00 ATOM 125 CA ALA A 125 42.088 26.168 101.576 1.00 0.00 ATOM 126 CA LEU A 126 42.604 27.561 104.947 1.00 0.00 ATOM 127 CA LYS A 127 40.181 30.003 105.976 1.00 0.00 ATOM 128 CA GLU A 128 40.262 33.210 107.123 1.00 0.00 ATOM 129 CA ASP A 129 41.390 34.630 109.885 1.00 0.00 ATOM 130 CA LEU A 130 41.097 31.670 110.953 1.00 0.00 ATOM 131 CA ARG A 131 43.639 30.016 110.603 1.00 0.00 ATOM 132 CA SER A 132 42.008 26.961 111.241 1.00 0.00 ATOM 133 CA TRP A 133 40.256 25.199 108.241 1.00 0.00 ATOM 134 CA THR A 134 37.914 24.263 104.795 1.00 0.00 ATOM 135 CA ALA A 135 37.493 21.618 101.894 1.00 0.00 ATOM 136 CA ALA A 136 36.363 20.967 98.330 1.00 0.00 ATOM 137 CA ASP A 137 35.513 17.876 96.322 1.00 0.00 ATOM 138 CA MET A 138 36.064 15.091 99.243 1.00 0.00 ATOM 139 CA ALA A 139 38.871 13.313 98.990 1.00 0.00 ATOM 140 CA ALA A 140 39.960 15.999 99.795 1.00 0.00 ATOM 141 CA GLN A 141 38.534 16.139 103.205 1.00 0.00 ATOM 142 CA THR A 142 39.949 12.926 104.409 1.00 0.00 ATOM 143 CA THR A 143 43.139 15.356 104.116 1.00 0.00 ATOM 144 CA LYS A 144 40.964 17.656 106.926 1.00 0.00 ATOM 145 CA HIS A 145 42.819 16.243 109.475 1.00 0.00 ATOM 146 CA LYS A 146 45.700 15.159 108.493 1.00 0.00 ATOM 147 CA TRP A 147 45.826 17.966 108.418 1.00 0.00 ATOM 148 CA GLU A 148 45.112 19.103 111.592 1.00 0.00 ATOM 149 CA ALA A 149 44.728 17.103 114.581 1.00 0.00 ATOM 150 CA ALA A 150 47.639 18.817 115.801 1.00 0.00 ATOM 151 CA HIS A 151 49.629 20.357 113.234 1.00 0.00 ATOM 152 CA VAL A 152 49.332 21.729 109.904 1.00 0.00 ATOM 153 CA ALA A 153 46.962 24.537 109.912 1.00 0.00 ATOM 154 CA GLU A 154 48.412 25.729 113.302 1.00 0.00 ATOM 155 CA GLN A 155 51.644 25.802 112.036 1.00 0.00 ATOM 156 CA LEU A 156 51.289 27.593 109.108 1.00 0.00 ATOM 157 CA ARG A 157 49.899 30.444 111.213 1.00 0.00 ATOM 158 CA ALA A 158 52.626 31.291 113.660 1.00 0.00 ATOM 159 CA TYR A 159 54.396 32.038 110.451 1.00 0.00 ATOM 160 CA LEU A 160 51.922 34.158 109.455 1.00 0.00 ATOM 161 CA GLU A 161 52.358 37.510 110.976 1.00 0.00 ATOM 162 CA GLY A 162 55.135 35.300 111.670 1.00 0.00 ATOM 163 CA THR A 163 58.196 35.356 109.444 1.00 0.00 ATOM 164 CA CYS A 164 56.539 36.706 106.183 1.00 0.00 ATOM 165 CA VAL A 165 55.767 39.958 107.297 1.00 0.00 ATOM 166 CA GLU A 166 59.416 39.980 108.327 1.00 0.00 ATOM 167 CA TRP A 167 60.314 38.938 104.828 1.00 0.00 ATOM 168 CA LEU A 168 58.108 41.544 103.071 1.00 0.00 ATOM 169 CA ARG A 169 60.103 44.273 104.937 1.00 0.00 ATOM 170 CA ARG A 170 63.457 43.312 103.595 1.00 0.00 ATOM 171 CA TYR A 171 61.792 42.258 100.422 1.00 0.00 ATOM 172 CA LEU A 172 60.038 45.640 100.180 1.00 0.00 ATOM 173 CA GLU A 173 62.041 48.286 101.659 1.00 0.00 ATOM 174 CA ASN A 174 65.527 46.943 100.941 1.00 0.00 ATOM 175 CA GLY A 175 64.253 46.740 97.379 1.00 0.00 ATOM 176 CA LYS A 176 61.611 49.476 97.485 1.00 0.00 ATOM 177 CA GLU A 177 62.859 51.755 95.174 1.00 0.00 ATOM 178 CA THR A 178 62.033 49.889 92.096 1.00 0.00 ATOM 179 CA LEU A 179 59.330 47.829 93.601 1.00 0.00 ATOM 180 CA GLN A 180 57.442 49.993 95.914 1.00 0.00 ATOM 181 CA ARG A 181 57.904 53.314 95.071 1.00 0.00 TER