HEADER IMMUNOGLOBULIN 23-DEC-98 1IGA TITLE MODEL OF HUMAN IGA1 DETERMINED BY SOLUTION SCATTERING CURVE-FITTING TITLE 2 AND HOMOLOGY MODELLING COMPND MOL_ID: 1; COMPND 2 MOLECULE: IGA1; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: CHAINS A AND B, HEAVY, CHAINS C AND D, ; EXPDTA SOLUTION SCATTERING DBREF 1IGA A 123 475 UNP P01876 IGHA1_HUMAN 1 353 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 87.393 23.256 7.937 1.00 0.00 ATOM 2 CA SER A 124 86.106 20.564 10.246 1.00 0.00 ATOM 3 CA PRO A 125 85.440 16.892 9.222 1.00 0.00 ATOM 4 CA THR A 126 81.676 16.020 9.386 1.00 0.00 ATOM 5 CA SER A 127 80.062 12.550 8.851 1.00 0.00 ATOM 6 CA PRO A 128 77.055 12.215 6.418 1.00 0.00 ATOM 7 CA LYS A 129 73.450 11.999 7.692 1.00 0.00 ATOM 8 CA VAL A 130 71.577 9.514 5.470 1.00 0.00 ATOM 9 CA PHE A 131 67.863 10.169 4.699 1.00 0.00 ATOM 10 CA PRO A 132 65.332 8.027 2.755 1.00 0.00 ATOM 11 CA LEU A 133 63.824 9.250 -0.540 1.00 0.00 ATOM 12 CA SER A 134 60.530 7.303 -1.016 1.00 0.00 ATOM 13 CA LEU A 135 56.972 7.973 -2.361 1.00 0.00 ATOM 14 CA CYS A 136 53.649 6.466 -1.128 1.00 0.00 ATOM 15 CA SER A 137 51.235 6.653 -4.182 1.00 0.00 ATOM 16 CA THR A 138 53.006 9.823 -5.569 1.00 0.00 ATOM 17 CA GLN A 139 55.118 7.905 -8.218 1.00 0.00 ATOM 18 CA PRO A 140 53.615 6.771 -11.624 1.00 0.00 ATOM 19 CA ASP A 141 51.879 3.289 -11.744 1.00 0.00 ATOM 20 CA GLY A 142 54.492 0.841 -13.233 1.00 0.00 ATOM 21 CA ASN A 143 58.086 1.781 -12.176 1.00 0.00 ATOM 22 CA VAL A 144 59.483 2.702 -8.702 1.00 0.00 ATOM 23 CA VAL A 145 62.223 5.303 -7.877 1.00 0.00 ATOM 24 CA ILE A 146 63.672 5.172 -4.339 1.00 0.00 ATOM 25 CA ALA A 147 66.850 6.837 -3.108 1.00 0.00 ATOM 26 CA CYS A 148 69.188 7.801 -0.236 1.00 0.00 ATOM 27 CA LEU A 149 70.167 11.456 0.360 1.00 0.00 ATOM 28 CA VAL A 150 73.771 11.397 1.828 1.00 0.00 ATOM 29 CA GLN A 151 73.756 14.864 3.429 1.00 0.00 ATOM 30 CA GLY A 152 76.149 17.369 5.069 1.00 0.00 ATOM 31 CA PHE A 153 79.578 15.710 4.958 1.00 0.00 ATOM 32 CA PHE A 154 83.184 17.006 4.694 1.00 0.00 ATOM 33 CA PRO A 155 85.577 16.310 3.152 1.00 0.00 ATOM 34 CA GLN A 156 84.338 14.708 -0.172 1.00 0.00 ATOM 35 CA GLU A 157 86.436 11.417 0.028 1.00 0.00 ATOM 36 CA PRO A 158 85.444 8.096 -1.750 1.00 0.00 ATOM 37 CA LEU A 159 81.754 7.320 -1.061 1.00 0.00 ATOM 38 CA SER A 160 80.861 3.613 -1.693 1.00 0.00 ATOM 39 CA VAL A 161 77.053 3.288 -2.187 1.00 0.00 ATOM 40 CA THR A 162 75.637 -0.224 -2.691 1.00 0.00 ATOM 41 CA TRP A 163 71.907 -1.275 -2.788 1.00 0.00 ATOM 42 CA SER A 164 70.474 -4.647 -1.456 1.00 0.00 ATOM 43 CA GLU A 165 68.638 -5.448 -4.779 1.00 0.00 ATOM 44 CA SER A 166 70.515 -5.983 -8.135 1.00 0.00 ATOM 45 CA GLY A 167 69.218 -7.229 -11.558 1.00 0.00 ATOM 46 CA GLN A 168 68.624 -6.644 -15.332 1.00 0.00 ATOM 47 CA GLY A 169 65.956 -3.854 -15.078 1.00 0.00 ATOM 48 CA VAL A 170 67.166 -2.390 -11.695 1.00 0.00 ATOM 49 CA THR A 171 69.302 0.742 -12.458 1.00 0.00 ATOM 50 CA ALA A 172 71.518 2.458 -9.824 1.00 0.00 ATOM 51 CA ARG A 173 72.530 6.126 -10.371 1.00 0.00 ATOM 52 CA ASN A 174 75.192 7.567 -8.012 1.00 0.00 ATOM 53 CA PHE A 175 75.070 11.420 -8.372 1.00 0.00 ATOM 54 CA PRO A 176 78.549 13.129 -7.911 1.00 0.00 ATOM 55 CA PRO A 177 79.120 15.273 -4.718 1.00 0.00 ATOM 56 CA SER A 178 77.730 18.854 -4.903 1.00 0.00 ATOM 57 CA GLN A 179 79.294 21.509 -2.614 1.00 0.00 ATOM 58 CA ASP A 180 77.147 24.030 -0.574 1.00 0.00 ATOM 59 CA ALA A 181 78.677 27.625 -0.516 1.00 0.00 ATOM 60 CA SER A 182 82.477 28.124 0.202 1.00 0.00 ATOM 61 CA GLY A 183 83.560 24.537 1.135 1.00 0.00 ATOM 62 CA ASP A 184 80.955 24.325 4.005 1.00 0.00 ATOM 63 CA LEU A 185 79.205 20.920 3.376 1.00 0.00 ATOM 64 CA TYR A 186 78.975 18.323 0.515 1.00 0.00 ATOM 65 CA THR A 187 75.710 16.452 -0.418 1.00 0.00 ATOM 66 CA THR A 188 75.309 13.408 -2.794 1.00 0.00 ATOM 67 CA SER A 189 72.153 11.412 -3.719 1.00 0.00 ATOM 68 CA SER A 190 72.081 7.664 -4.706 1.00 0.00 ATOM 69 CA GLN A 191 68.962 6.605 -6.728 1.00 0.00 ATOM 70 CA LEU A 192 67.606 3.050 -7.424 1.00 0.00 ATOM 71 CA THR A 193 65.075 2.821 -10.349 1.00 0.00 ATOM 72 CA LEU A 194 63.344 -0.668 -10.509 1.00 0.00 ATOM 73 CA PRO A 195 59.983 -2.151 -11.801 1.00 0.00 ATOM 74 CA ALA A 196 56.956 -1.847 -9.377 1.00 0.00 ATOM 75 CA THR A 197 56.553 -5.711 -9.447 1.00 0.00 ATOM 76 CA GLN A 198 60.166 -5.913 -8.016 1.00 0.00 ATOM 77 CA CYS A 199 59.455 -3.248 -5.278 1.00 0.00 ATOM 78 CA LEU A 200 55.930 -3.978 -3.850 1.00 0.00 ATOM 79 CA ALA A 201 54.103 -1.895 -1.114 1.00 0.00 ATOM 80 CA GLY A 202 55.161 -2.898 2.469 1.00 0.00 ATOM 81 CA LYS A 203 58.629 -4.146 1.281 1.00 0.00 ATOM 82 CA SER A 204 62.005 -2.272 1.583 1.00 0.00 ATOM 83 CA VAL A 205 65.463 -2.056 -0.156 1.00 0.00 ATOM 84 CA THR A 206 68.624 -1.379 1.943 1.00 0.00 ATOM 85 CA CYS A 207 71.135 1.319 0.878 1.00 0.00 ATOM 86 CA HIS A 208 74.700 0.686 2.243 1.00 0.00 ATOM 87 CA VAL A 209 76.893 3.848 2.423 1.00 0.00 ATOM 88 CA LYS A 210 80.655 3.703 3.171 1.00 0.00 ATOM 89 CA HIS A 211 82.366 7.123 3.645 1.00 0.00 ATOM 90 CA TYR A 212 86.293 6.568 3.490 1.00 0.00 ATOM 91 CA THR A 213 87.585 3.829 5.871 1.00 0.00 ATOM 92 CA ASN A 214 84.698 4.502 8.337 1.00 0.00 ATOM 93 CA PRO A 215 82.095 1.769 9.281 1.00 0.00 ATOM 94 CA SER A 216 79.166 1.204 6.824 1.00 0.00 ATOM 95 CA GLN A 217 75.987 3.290 7.451 1.00 0.00 ATOM 96 CA ASP A 218 72.854 1.313 6.436 1.00 0.00 ATOM 97 CA VAL A 219 69.299 2.636 5.755 1.00 0.00 ATOM 98 CA THR A 220 66.202 0.536 4.994 1.00 0.00 ATOM 99 CA VAL A 221 64.299 2.533 2.283 1.00 0.00 ATOM 100 CA PRO A 222 60.545 1.667 1.650 1.00 0.00 ATOM 101 CA CYS A 223 58.541 0.805 -1.656 1.00 0.00 ATOM 102 CA PRO A 224 54.843 1.760 -2.510 1.00 0.00 ATOM 103 CA VAL A 225 51.306 2.351 -1.439 1.00 0.00 ATOM 104 CA PRO A 226 49.385 2.272 -4.905 1.00 0.00 ATOM 105 CA SER A 227 45.952 2.961 -6.866 1.00 0.00 TER