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 122 GLN VAL LYS LEU LEU GLU GLN SER GLY ALA GLU VAL LYS SEQRES 2 A 122 LYS PRO GLY ALA SER VAL LYS VAL SER CYS LYS ALA SER SEQRES 3 A 122 GLY TYR SER PHE THR SER TYR GLY LEU HIS TRP VAL ARG SEQRES 4 A 122 GLN ALA PRO GLY GLN ARG LEU GLU TRP MET GLY TRP ILE SEQRES 5 A 122 SER ALA GLY THR GLY ASN THR LYS TYR SER GLN LYS PHE SEQRES 6 A 122 ARG GLY ARG VAL THR PHE THR ARG ASP THR SER ALA THR SEQRES 7 A 122 THR ALA TYR MET GLY LEU SER SER LEU ARG PRO GLU ASP SEQRES 8 A 122 THR ALA VAL TYR TYR CYS ALA ARG ASP PRO TYR GLY GLY SEQRES 9 A 122 GLY LYS SER GLU PHE ASP TYR TRP GLY GLN GLY THR LEU SEQRES 10 A 122 VAL THR VAL SER SER ATOM 1 CA GLN A 1 92.587 -12.556 -6.416 0.00 0.00 ATOM 2 CA VAL A 2 90.752 -10.373 -3.847 0.00 0.00 ATOM 3 CA LYS A 3 91.812 -7.925 -6.538 0.00 0.00 ATOM 4 CA LEU A 4 95.484 -8.231 -7.784 0.00 0.00 ATOM 5 CA LEU A 5 96.863 -4.878 -6.556 0.00 0.00 ATOM 6 CA GLU A 6 94.540 -3.420 -3.813 0.00 0.00 ATOM 7 CA GLN A 7 94.833 -0.099 -1.989 0.00 0.00 ATOM 8 CA SER A 8 93.892 1.373 1.435 0.00 0.00 ATOM 9 CA GLY A 9 90.770 3.624 1.217 0.00 0.00 ATOM 10 CA ALA A 10 90.457 7.380 1.549 0.00 0.00 ATOM 11 CA GLU A 11 91.387 9.898 3.547 0.00 0.00 ATOM 12 CA VAL A 12 91.091 13.413 4.755 0.00 0.00 ATOM 13 CA LYS A 13 94.229 14.957 6.211 0.00 0.00 ATOM 14 CA LYS A 14 94.743 18.484 7.579 0.00 0.00 ATOM 15 CA PRO A 15 97.244 20.756 5.644 0.00 0.00 ATOM 16 CA GLY A 16 100.744 20.152 7.158 0.00 0.00 ATOM 17 CA ALA A 17 100.012 16.497 8.087 0.00 0.00 ATOM 18 CA SER A 18 101.356 13.314 6.449 0.00 0.00 ATOM 19 CA VAL A 19 99.408 10.510 4.698 0.00 0.00 ATOM 20 CA LYS A 20 100.459 6.851 4.285 0.00 0.00 ATOM 21 CA VAL A 21 98.864 4.929 1.391 0.00 0.00 ATOM 22 CA SER A 22 99.301 1.114 1.110 0.00 0.00 ATOM 23 CA CYS A 23 99.139 -1.249 -1.858 0.00 0.00 ATOM 24 CA LYS A 24 98.791 -5.027 -1.170 0.00 0.00 ATOM 25 CA ALA A 25 99.844 -7.357 -4.053 0.00 0.00 ATOM 26 CA SER A 26 97.948 -10.724 -4.307 0.00 0.00 ATOM 27 CA GLY A 27 98.198 -13.611 -6.880 0.00 0.00 ATOM 28 CA TYR A 28 101.682 -12.899 -8.375 0.00 0.00 ATOM 29 CA SER A 29 105.250 -13.188 -6.903 0.00 0.00 ATOM 30 CA PHE A 30 105.631 -9.780 -5.117 0.00 0.00 ATOM 31 CA THR A 31 109.508 -9.592 -5.116 0.00 0.00 ATOM 32 CA SER A 32 109.831 -10.269 -8.922 0.00 0.00 ATOM 33 CA TYR A 33 108.388 -6.830 -9.988 0.00 0.00 ATOM 34 CA GLY A 34 108.668 -3.132 -9.163 0.00 0.00 ATOM 35 CA LEU A 35 105.690 -0.918 -8.201 0.00 0.00 ATOM 36 CA HIS A 36 105.178 2.606 -9.566 0.00 0.00 ATOM 37 CA TRP A 37 103.199 5.380 -7.721 0.00 0.00 ATOM 38 CA VAL A 38 101.118 7.834 -9.812 0.00 0.00 ATOM 39 CA ARG A 39 98.602 10.536 -8.841 0.00 0.00 ATOM 40 CA GLN A 40 95.732 12.340 -10.592 0.00 0.00 ATOM 41 CA ALA A 41 94.598 15.722 -9.189 0.00 0.00 ATOM 42 CA PRO A 42 90.980 16.719 -10.137 0.00 0.00 ATOM 43 CA GLY A 43 90.680 17.640 -13.862 0.00 0.00 ATOM 44 CA GLN A 44 94.409 17.063 -14.387 0.00 0.00 ATOM 45 CA ARG A 45 96.717 14.612 -16.121 0.00 0.00 ATOM 46 CA LEU A 46 98.368 11.671 -14.353 0.00 0.00 ATOM 47 CA GLU A 47 101.663 12.576 -12.648 0.00 0.00 ATOM 48 CA TRP A 48 104.382 9.987 -11.964 0.00 0.00 ATOM 49 CA MET A 49 105.729 10.258 -8.338 0.00 0.00 ATOM 50 CA GLY A 50 108.157 7.333 -7.875 0.00 0.00 ATOM 51 CA TRP A 51 108.961 3.598 -8.058 0.00 0.00 ATOM 52 CA ILE A 52 110.123 0.875 -5.606 0.00 0.00 ATOM 53 CA SER A 53 111.779 -2.496 -6.432 0.00 0.00 ATOM 54 CA ALA A 54 109.953 -5.085 -4.183 0.00 0.00 ATOM 55 CA GLY A 55 113.065 -7.372 -4.237 0.00 0.00 ATOM 56 CA THR A 56 115.847 -4.879 -3.195 0.00 0.00 ATOM 57 CA GLY A 57 113.768 -2.052 -1.574 0.00 0.00 ATOM 58 CA ASN A 58 115.537 0.450 -3.946 0.00 0.00 ATOM 59 CA THR A 59 113.855 3.682 -4.723 0.00 0.00 ATOM 60 CA LYS A 60 113.477 6.192 -7.556 0.00 0.00 ATOM 61 CA TYR A 61 111.367 9.341 -7.433 0.00 0.00 ATOM 62 CA SER A 62 110.273 12.537 -9.166 0.00 0.00 ATOM 63 CA GLN A 63 112.301 15.557 -7.952 0.00 0.00 ATOM 64 CA LYS A 64 108.957 17.486 -7.818 0.00 0.00 ATOM 65 CA PHE A 65 108.469 15.521 -4.489 0.00 0.00 ATOM 66 CA ARG A 66 112.150 15.915 -3.343 0.00 0.00 ATOM 67 CA GLY A 67 112.395 15.779 0.463 0.00 0.00 ATOM 68 CA ARG A 68 108.697 14.876 1.169 0.00 0.00 ATOM 69 CA VAL A 69 107.949 11.433 -0.433 0.00 0.00 ATOM 70 CA THR A 70 109.046 8.013 1.036 0.00 0.00 ATOM 71 CA PHE A 71 108.573 4.478 -0.476 0.00 0.00 ATOM 72 CA THR A 72 108.669 1.319 1.687 0.00 0.00 ATOM 73 CA ARG A 73 107.778 -2.375 1.107 0.00 0.00 ATOM 74 CA ASP A 74 106.886 -5.035 3.710 0.00 0.00 ATOM 75 CA THR A 75 108.090 -8.085 1.772 0.00 0.00 ATOM 76 CA SER A 76 106.457 -10.622 4.231 0.00 0.00 ATOM 77 CA ALA A 77 102.962 -8.930 4.170 0.00 0.00 ATOM 78 CA THR A 78 103.469 -8.336 0.403 0.00 0.00 ATOM 79 CA THR A 79 102.479 -4.648 0.728 0.00 0.00 ATOM 80 CA ALA A 80 104.191 -1.487 -0.568 0.00 0.00 ATOM 81 CA TYR A 81 103.559 1.982 0.953 0.00 0.00 ATOM 82 CA MET A 82 104.058 5.574 -0.058 0.00 0.00 ATOM 83 CA GLY A 83 104.410 8.247 2.640 0.00 0.00 ATOM 84 CA LEU A 84 103.667 11.882 1.604 0.00 0.00 ATOM 85 CA SER A 85 104.653 14.580 4.165 0.00 0.00 ATOM 86 CA SER A 86 103.870 18.329 4.534 0.00 0.00 ATOM 87 CA LEU A 87 100.460 18.039 2.855 0.00 0.00 ATOM 88 CA ARG A 88 99.217 21.084 0.924 0.00 0.00 ATOM 89 CA PRO A 89 95.616 21.540 -0.454 0.00 0.00 ATOM 90 CA GLU A 90 96.971 20.782 -4.018 0.00 0.00 ATOM 91 CA ASP A 91 97.881 17.206 -2.876 0.00 0.00 ATOM 92 CA THR A 92 94.083 16.452 -3.039 0.00 0.00 ATOM 93 CA ALA A 93 94.227 13.721 -5.704 0.00 0.00 ATOM 94 CA VAL A 94 93.668 10.004 -6.381 0.00 0.00 ATOM 95 CA TYR A 95 96.895 8.042 -5.591 0.00 0.00 ATOM 96 CA TYR A 96 97.413 4.869 -7.637 0.00 0.00 ATOM 97 CA CYS A 97 100.032 2.191 -7.318 0.00 0.00 ATOM 98 CA ALA A 98 100.686 0.387 -10.645 0.00 0.00 ATOM 99 CA ARG A 99 102.902 -2.567 -11.567 0.00 0.00 ATOM 100 CA ASP A 100 106.230 -2.437 -13.474 0.00 0.00 ATOM 101 CA PRO A 101 106.053 -5.712 -15.584 0.00 0.00 ATOM 102 CA TYR A 102 109.901 -6.024 -15.724 0.00 0.00 ATOM 103 CA GLY A 103 111.317 -4.801 -12.329 0.00 0.00 ATOM 104 CA GLY A 104 113.675 -2.171 -13.915 0.00 0.00 ATOM 105 CA GLY A 105 111.920 1.170 -13.086 0.00 0.00 ATOM 106 CA LYS A 106 111.217 2.505 -16.600 0.00 0.00 ATOM 107 CA SER A 107 108.186 0.794 -18.098 0.00 0.00 ATOM 108 CA GLU A 108 104.539 0.979 -19.138 0.00 0.00 ATOM 109 CA PHE A 109 102.266 -0.102 -16.189 0.00 0.00 ATOM 110 CA ASP A 110 100.251 -3.337 -16.826 0.00 0.00 ATOM 111 CA TYR A 111 98.174 -3.651 -13.543 0.00 0.00 ATOM 112 CA TRP A 112 96.824 -0.683 -11.603 0.00 0.00 ATOM 113 CA GLY A 113 95.478 -0.508 -8.060 0.00 0.00 ATOM 114 CA GLN A 114 92.001 1.095 -7.680 0.00 0.00 ATOM 115 CA GLY A 115 93.120 4.482 -6.274 0.00 0.00 ATOM 116 CA THR A 116 92.818 6.149 -2.847 0.00 0.00 ATOM 117 CA LEU A 117 91.530 9.691 -2.759 0.00 0.00 ATOM 118 CA VAL A 118 93.431 11.799 -0.204 0.00 0.00 ATOM 119 CA THR A 119 91.662 15.087 0.459 0.00 0.00 ATOM 120 CA VAL A 120 93.716 17.802 2.212 0.00 0.00 ATOM 121 CA SER A 121 91.349 20.059 4.281 0.00 0.00 ATOM 122 CA SER A 122 90.601 21.992 7.535 0.00 0.00 TER