HEADER IMMUNE SYSTEM/TRANSPORT PROTEIN 26-OCT-05 2ESG TITLE Solution structure of the complex between immunoglobulin IgA1 and TITLE 2 human serum albumin COMPND MOL_ID: 2; COMPND 2 MOLECULE: Immunoglobulin A1 heavy chain; COMPND 3 CHAIN: A, B; EXPDTA SOLUTION SCATTERING DBREF 2ESG A 1 475 PDB 2ESG 2ESG 1 475 SEQRES 1 A 105 ALA SER PRO THR SER PRO LYS VAL PHE PRO LEU SER LEU SEQRES 2 A 105 CYS SER THR GLN PRO ASP GLY ASN VAL VAL ILE ALA CYS SEQRES 3 A 105 LEU VAL GLN GLY PHE PHE PRO GLN GLU PRO LEU SER VAL SEQRES 4 A 105 THR TRP SER GLU SER GLY GLN GLY VAL THR ALA ARG ASN SEQRES 5 A 105 PHE PRO PRO SER GLN ASP ALA SER GLY ASP LEU TYR THR SEQRES 6 A 105 THR SER SER GLN LEU THR LEU PRO ALA THR GLN CYS LEU SEQRES 7 A 105 ALA GLY LYS SER VAL THR CYS HIS VAL LYS HIS TYR THR SEQRES 8 A 105 ASN PRO SER GLN ASP VAL THR VAL PRO CYS PRO VAL PRO SEQRES 9 A 105 SER ATOM 1 CA ALA A 123 87.020 23.057 6.455 0.00 0.00 ATOM 2 CA SER A 124 85.733 20.365 8.764 0.00 0.00 ATOM 3 CA PRO A 125 85.067 16.693 7.740 0.00 0.00 ATOM 4 CA THR A 126 81.303 15.821 7.904 0.00 0.00 ATOM 5 CA SER A 127 79.689 12.351 7.369 0.00 0.00 ATOM 6 CA PRO A 128 76.682 12.016 4.936 0.00 0.00 ATOM 7 CA LYS A 129 73.077 11.800 6.210 0.00 0.00 ATOM 8 CA VAL A 130 71.204 9.315 3.988 0.00 0.00 ATOM 9 CA PHE A 131 67.490 9.970 3.217 0.00 0.00 ATOM 10 CA PRO A 132 64.959 7.828 1.273 0.00 0.00 ATOM 11 CA LEU A 133 63.451 9.051 -2.022 0.00 0.00 ATOM 12 CA SER A 134 60.157 7.104 -2.498 0.00 0.00 ATOM 13 CA LEU A 135 56.599 7.774 -3.843 0.00 0.00 ATOM 14 CA CYS A 136 53.276 6.267 -2.610 0.00 0.00 ATOM 15 CA SER A 137 50.862 6.454 -5.664 0.00 0.00 ATOM 16 CA THR A 138 52.633 9.624 -7.051 0.00 0.00 ATOM 17 CA GLN A 139 54.745 7.706 -9.700 0.00 0.00 ATOM 18 CA PRO A 140 53.242 6.572 -13.106 0.00 0.00 ATOM 19 CA ASP A 141 51.506 3.090 -13.226 0.00 0.00 ATOM 20 CA GLY A 142 54.119 0.642 -14.715 0.00 0.00 ATOM 21 CA ASN A 143 57.713 1.582 -13.658 0.00 0.00 ATOM 22 CA VAL A 144 59.110 2.503 -10.184 0.00 0.00 ATOM 23 CA VAL A 145 61.850 5.104 -9.359 0.00 0.00 ATOM 24 CA ILE A 146 63.299 4.973 -5.821 0.00 0.00 ATOM 25 CA ALA A 147 66.477 6.638 -4.590 0.00 0.00 ATOM 26 CA CYS A 148 68.815 7.602 -1.718 0.00 0.00 ATOM 27 CA LEU A 149 69.794 11.257 -1.122 0.00 0.00 ATOM 28 CA VAL A 150 73.398 11.198 0.346 0.00 0.00 ATOM 29 CA GLN A 151 73.383 14.665 1.947 0.00 0.00 ATOM 30 CA GLY A 152 75.776 17.170 3.587 0.00 0.00 ATOM 31 CA PHE A 153 79.205 15.511 3.476 0.00 0.00 ATOM 32 CA PHE A 154 82.811 16.807 3.212 0.00 0.00 ATOM 33 CA PRO A 155 85.204 16.111 1.670 0.00 0.00 ATOM 34 CA GLN A 156 83.965 14.509 -1.654 0.00 0.00 ATOM 35 CA GLU A 157 86.063 11.218 -1.454 0.00 0.00 ATOM 36 CA PRO A 158 85.071 7.897 -3.232 0.00 0.00 ATOM 37 CA LEU A 159 81.381 7.121 -2.543 0.00 0.00 ATOM 38 CA SER A 160 80.488 3.414 -3.175 0.00 0.00 ATOM 39 CA VAL A 161 76.680 3.089 -3.669 0.00 0.00 ATOM 40 CA THR A 162 75.264 -0.423 -4.173 0.00 0.00 ATOM 41 CA TRP A 163 71.534 -1.474 -4.270 0.00 0.00 ATOM 42 CA SER A 164 70.101 -4.846 -2.938 0.00 0.00 ATOM 43 CA GLU A 165 68.265 -5.647 -6.261 0.00 0.00 ATOM 44 CA SER A 166 70.142 -6.182 -9.617 0.00 0.00 ATOM 45 CA GLY A 167 68.845 -7.428 -13.040 0.00 0.00 ATOM 46 CA GLN A 168 68.251 -6.843 -16.814 0.00 0.00 ATOM 47 CA GLY A 169 65.583 -4.053 -16.560 0.00 0.00 ATOM 48 CA VAL A 170 66.793 -2.589 -13.177 0.00 0.00 ATOM 49 CA THR A 171 68.929 0.543 -13.940 0.00 0.00 ATOM 50 CA ALA A 172 71.145 2.259 -11.306 0.00 0.00 ATOM 51 CA ARG A 173 72.157 5.927 -11.853 0.00 0.00 ATOM 52 CA ASN A 174 74.819 7.368 -9.494 0.00 0.00 ATOM 53 CA PHE A 175 74.697 11.221 -9.854 0.00 0.00 ATOM 54 CA PRO A 176 78.176 12.930 -9.393 0.00 0.00 ATOM 55 CA PRO A 177 78.747 15.074 -6.200 0.00 0.00 ATOM 56 CA SER A 178 77.357 18.655 -6.385 0.00 0.00 ATOM 57 CA GLN A 179 78.921 21.310 -4.096 0.00 0.00 ATOM 58 CA ASP A 180 76.774 23.831 -2.056 0.00 0.00 ATOM 59 CA ALA A 181 78.304 27.426 -1.998 0.00 0.00 ATOM 60 CA SER A 182 82.104 27.925 -1.280 0.00 0.00 ATOM 61 CA GLY A 183 83.187 24.338 -0.347 0.00 0.00 ATOM 62 CA ASP A 184 80.582 24.126 2.523 0.00 0.00 ATOM 63 CA LEU A 185 78.832 20.721 1.894 0.00 0.00 ATOM 64 CA TYR A 186 78.602 18.124 -0.967 0.00 0.00 ATOM 65 CA THR A 187 75.337 16.253 -1.900 0.00 0.00 ATOM 66 CA THR A 188 74.936 13.209 -4.276 0.00 0.00 ATOM 67 CA SER A 189 71.780 11.213 -5.201 0.00 0.00 ATOM 68 CA SER A 190 71.708 7.465 -6.188 0.00 0.00 ATOM 69 CA GLN A 191 68.589 6.406 -8.210 0.00 0.00 ATOM 70 CA LEU A 192 67.233 2.851 -8.906 0.00 0.00 ATOM 71 CA THR A 193 64.702 2.622 -11.831 0.00 0.00 ATOM 72 CA LEU A 194 62.971 -0.867 -11.991 0.00 0.00 ATOM 73 CA PRO A 195 59.610 -2.350 -13.283 0.00 0.00 ATOM 74 CA ALA A 196 56.583 -2.046 -10.859 0.00 0.00 ATOM 75 CA THR A 197 56.180 -5.910 -10.929 0.00 0.00 ATOM 76 CA GLN A 198 59.793 -6.112 -9.498 0.00 0.00 ATOM 77 CA CYS A 199 59.082 -3.447 -6.760 0.00 0.00 ATOM 78 CA LEU A 200 55.557 -4.177 -5.332 0.00 0.00 ATOM 79 CA ALA A 201 53.730 -2.094 -2.596 0.00 0.00 ATOM 80 CA GLY A 202 54.788 -3.097 0.987 0.00 0.00 ATOM 81 CA LYS A 203 58.256 -4.345 -0.201 0.00 0.00 ATOM 82 CA SER A 204 61.632 -2.471 0.101 0.00 0.00 ATOM 83 CA VAL A 205 65.090 -2.255 -1.638 0.00 0.00 ATOM 84 CA THR A 206 68.251 -1.578 0.461 0.00 0.00 ATOM 85 CA CYS A 207 70.762 1.120 -0.604 0.00 0.00 ATOM 86 CA HIS A 208 74.327 0.487 0.761 0.00 0.00 ATOM 87 CA VAL A 209 76.520 3.649 0.941 0.00 0.00 ATOM 88 CA LYS A 210 80.282 3.504 1.689 0.00 0.00 ATOM 89 CA HIS A 211 81.993 6.924 2.163 0.00 0.00 ATOM 90 CA TYR A 212 85.920 6.369 2.008 0.00 0.00 ATOM 91 CA THR A 213 87.212 3.630 4.389 0.00 0.00 ATOM 92 CA ASN A 214 84.325 4.303 6.855 0.00 0.00 ATOM 93 CA PRO A 215 81.722 1.570 7.799 0.00 0.00 ATOM 94 CA SER A 216 78.793 1.005 5.342 0.00 0.00 ATOM 95 CA GLN A 217 75.614 3.091 5.969 0.00 0.00 ATOM 96 CA ASP A 218 72.481 1.114 4.954 0.00 0.00 ATOM 97 CA VAL A 219 68.926 2.437 4.273 0.00 0.00 ATOM 98 CA THR A 220 65.829 0.337 3.512 0.00 0.00 ATOM 99 CA VAL A 221 63.926 2.334 0.801 0.00 0.00 ATOM 100 CA PRO A 222 60.172 1.468 0.168 0.00 0.00 ATOM 101 CA CYS A 223 58.168 0.606 -3.138 0.00 0.00 ATOM 102 CA PRO A 224 54.470 1.561 -3.992 0.00 0.00 ATOM 103 CA VAL A 225 50.933 2.152 -2.921 0.00 0.00 ATOM 104 CA PRO A 226 49.012 2.073 -6.387 0.00 0.00 ATOM 105 CA SER A 227 45.579 2.762 -8.348 0.00 0.00 TER