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 108 ASN THR PHE ARG PRO GLU VAL HIS LEU LEU PRO PRO PRO SEQRES 2 A 108 SER GLU GLU LEU ALA LEU ASN GLU LEU VAL THR LEU THR SEQRES 3 A 108 CYS LEU ALA ARG GLY PHE SER PRO LYS ASP VAL LEU VAL SEQRES 4 A 108 ARG TRP LEU GLN GLY SER GLN GLU LEU PRO ARG GLU LYS SEQRES 5 A 108 TYR LEU THR TRP ALA SER ARG GLN GLU PRO SER GLN GLY SEQRES 6 A 108 THR THR THR PHE ALA VAL THR SER ILE LEU ARG VAL ALA SEQRES 7 A 108 ALA GLU ASP TRP LYS LYS GLY ASP THR PHE SER CYS MET SEQRES 8 A 108 VAL GLY HIS GLU ALA LEU PRO LEU ALA PHE THR GLN LYS SEQRES 9 A 108 THR ILE ASP ARG ATOM 1 CA ASN A 346 -16.790 -18.326 -31.441 0.00 0.00 ATOM 2 CA THR A 347 -17.273 -21.214 -28.876 0.00 0.00 ATOM 3 CA PHE A 348 -15.526 -24.694 -28.620 0.00 0.00 ATOM 4 CA ARG A 349 -16.385 -27.628 -26.205 0.00 0.00 ATOM 5 CA PRO A 350 -13.593 -28.378 -23.590 0.00 0.00 ATOM 6 CA GLU A 351 -12.073 -31.884 -23.772 0.00 0.00 ATOM 7 CA VAL A 352 -11.518 -32.942 -20.087 0.00 0.00 ATOM 8 CA HIS A 353 -9.016 -35.831 -19.469 0.00 0.00 ATOM 9 CA LEU A 354 -8.056 -36.811 -15.864 0.00 0.00 ATOM 10 CA LEU A 355 -4.460 -38.051 -15.413 0.00 0.00 ATOM 11 CA PRO A 356 -3.341 -40.205 -12.396 0.00 0.00 ATOM 12 CA PRO A 357 0.122 -39.605 -10.767 0.00 0.00 ATOM 13 CA PRO A 358 3.412 -40.828 -12.309 0.00 0.00 ATOM 14 CA SER A 359 4.920 -44.095 -10.884 0.00 0.00 ATOM 15 CA GLU A 360 7.976 -42.138 -9.518 0.00 0.00 ATOM 16 CA GLU A 361 5.716 -39.646 -7.570 0.00 0.00 ATOM 17 CA LEU A 362 4.421 -42.655 -5.506 0.00 0.00 ATOM 18 CA ALA A 363 7.977 -42.685 -3.993 0.00 0.00 ATOM 19 CA LEU A 364 6.804 -39.291 -2.498 0.00 0.00 ATOM 20 CA ASN A 365 4.355 -39.046 0.508 0.00 0.00 ATOM 21 CA GLU A 366 2.394 -35.895 1.694 0.00 0.00 ATOM 22 CA LEU A 367 1.029 -34.811 -1.758 0.00 0.00 ATOM 23 CA VAL A 368 0.042 -37.036 -4.769 0.00 0.00 ATOM 24 CA THR A 369 -0.318 -34.997 -7.916 0.00 0.00 ATOM 25 CA LEU A 370 -3.820 -35.579 -9.451 0.00 0.00 ATOM 26 CA THR A 371 -3.960 -33.741 -12.796 0.00 0.00 ATOM 27 CA CYS A 372 -6.875 -32.824 -15.084 0.00 0.00 ATOM 28 CA LEU A 373 -6.204 -31.418 -18.582 0.00 0.00 ATOM 29 CA ALA A 374 -8.945 -29.157 -20.056 0.00 0.00 ATOM 30 CA ARG A 375 -7.975 -28.625 -23.737 0.00 0.00 ATOM 31 CA GLY A 376 -9.337 -27.289 -27.086 0.00 0.00 ATOM 32 CA PHE A 377 -11.776 -24.819 -25.408 0.00 0.00 ATOM 33 CA SER A 378 -12.925 -21.261 -26.413 0.00 0.00 ATOM 34 CA PRO A 379 -13.468 -18.635 -25.249 0.00 0.00 ATOM 35 CA LYS A 380 -10.866 -18.704 -22.374 0.00 0.00 ATOM 36 CA ASP A 381 -13.744 -18.218 -19.939 0.00 0.00 ATOM 37 CA VAL A 382 -13.893 -21.418 -17.759 0.00 0.00 ATOM 38 CA LEU A 383 -14.251 -22.642 -14.105 0.00 0.00 ATOM 39 CA VAL A 384 -12.501 -25.807 -12.912 0.00 0.00 ATOM 40 CA ARG A 385 -13.030 -27.263 -9.384 0.00 0.00 ATOM 41 CA TRP A 386 -12.198 -30.561 -7.602 0.00 0.00 ATOM 42 CA LEU A 387 -14.376 -32.871 -5.446 0.00 0.00 ATOM 43 CA GLN A 388 -13.694 -35.762 -3.022 0.00 0.00 ATOM 44 CA GLY A 389 -15.980 -38.860 -3.460 0.00 0.00 ATOM 45 CA SER A 390 -14.846 -40.446 -0.115 0.00 0.00 ATOM 46 CA GLN A 391 -16.286 -37.584 2.089 0.00 0.00 ATOM 47 CA GLU A 392 -18.951 -36.242 -0.417 0.00 0.00 ATOM 48 CA LEU A 393 -17.291 -32.765 -0.188 0.00 0.00 ATOM 49 CA PRO A 394 -15.350 -30.157 -2.264 0.00 0.00 ATOM 50 CA ARG A 395 -11.515 -30.254 -1.962 0.00 0.00 ATOM 51 CA GLU A 396 -8.944 -27.650 -0.815 0.00 0.00 ATOM 52 CA LYS A 397 -5.355 -28.423 -1.911 0.00 0.00 ATOM 53 CA TYR A 398 -5.635 -27.635 -5.638 0.00 0.00 ATOM 54 CA LEU A 399 -4.128 -25.040 -8.021 0.00 0.00 ATOM 55 CA THR A 400 -5.145 -24.152 -11.659 0.00 0.00 ATOM 56 CA TRP A 401 -2.702 -22.544 -14.211 0.00 0.00 ATOM 57 CA ALA A 402 -3.337 -21.037 -17.768 0.00 0.00 ATOM 58 CA SER A 403 -2.404 -21.289 -21.547 0.00 0.00 ATOM 59 CA ARG A 404 -4.032 -19.395 -24.523 0.00 0.00 ATOM 60 CA GLN A 405 -2.716 -21.105 -27.746 0.00 0.00 ATOM 61 CA GLU A 406 -2.043 -18.733 -30.744 0.00 0.00 ATOM 62 CA PRO A 407 0.742 -19.285 -33.397 0.00 0.00 ATOM 63 CA SER A 408 1.032 -17.699 -36.943 0.00 0.00 ATOM 64 CA GLN A 409 -1.747 -20.008 -38.358 0.00 0.00 ATOM 65 CA GLY A 410 -5.598 -20.065 -38.018 0.00 0.00 ATOM 66 CA THR A 411 -5.367 -22.541 -35.057 0.00 0.00 ATOM 67 CA THR A 412 -6.325 -20.625 -31.813 0.00 0.00 ATOM 68 CA THR A 413 -8.051 -22.375 -28.767 0.00 0.00 ATOM 69 CA PHE A 414 -7.002 -22.654 -25.010 0.00 0.00 ATOM 70 CA ALA A 415 -5.599 -25.321 -22.652 0.00 0.00 ATOM 71 CA VAL A 416 -5.188 -25.475 -18.818 0.00 0.00 ATOM 72 CA THR A 417 -3.937 -28.075 -16.325 0.00 0.00 ATOM 73 CA SER A 418 -5.420 -28.246 -12.778 0.00 0.00 ATOM 74 CA ILE A 419 -3.353 -29.873 -9.987 0.00 0.00 ATOM 75 CA LEU A 420 -5.082 -31.521 -6.936 0.00 0.00 ATOM 76 CA ARG A 421 -2.467 -32.599 -4.371 0.00 0.00 ATOM 77 CA VAL A 422 -3.492 -35.524 -2.011 0.00 0.00 ATOM 78 CA ALA A 423 -1.916 -37.827 0.633 0.00 0.00 ATOM 79 CA ALA A 424 -0.417 -40.987 -1.074 0.00 0.00 ATOM 80 CA GLU A 425 -2.607 -43.153 1.257 0.00 0.00 ATOM 81 CA ASP A 426 -6.129 -41.816 0.250 0.00 0.00 ATOM 82 CA TRP A 427 -5.426 -42.446 -3.482 0.00 0.00 ATOM 83 CA LYS A 428 -4.382 -46.063 -2.497 0.00 0.00 ATOM 84 CA LYS A 429 -7.456 -46.371 -0.157 0.00 0.00 ATOM 85 CA GLY A 430 -9.344 -46.372 -3.532 0.00 0.00 ATOM 86 CA ASP A 431 -10.842 -42.866 -3.344 0.00 0.00 ATOM 87 CA THR A 432 -12.619 -41.294 -6.348 0.00 0.00 ATOM 88 CA PHE A 433 -11.626 -37.642 -7.009 0.00 0.00 ATOM 89 CA SER A 434 -13.509 -35.682 -9.727 0.00 0.00 ATOM 90 CA CYS A 435 -12.503 -32.621 -11.754 0.00 0.00 ATOM 91 CA MET A 436 -15.641 -30.500 -12.519 0.00 0.00 ATOM 92 CA VAL A 437 -15.361 -28.157 -15.559 0.00 0.00 ATOM 93 CA GLY A 438 -17.916 -25.378 -16.282 0.00 0.00 ATOM 94 CA HIS A 439 -17.858 -23.718 -19.716 0.00 0.00 ATOM 95 CA GLU A 440 -20.203 -21.917 -22.236 0.00 0.00 ATOM 96 CA ALA A 441 -20.025 -24.863 -24.749 0.00 0.00 ATOM 97 CA LEU A 442 -20.532 -27.788 -22.271 0.00 0.00 ATOM 98 CA PRO A 443 -23.884 -29.759 -22.536 0.00 0.00 ATOM 99 CA LEU A 444 -25.500 -28.497 -19.266 0.00 0.00 ATOM 100 CA ALA A 445 -22.728 -25.817 -18.884 0.00 0.00 ATOM 101 CA PHE A 446 -21.106 -28.497 -16.674 0.00 0.00 ATOM 102 CA THR A 447 -19.115 -31.728 -17.107 0.00 0.00 ATOM 103 CA GLN A 448 -17.250 -33.825 -14.508 0.00 0.00 ATOM 104 CA LYS A 449 -14.513 -36.446 -15.245 0.00 0.00 ATOM 105 CA THR A 450 -13.407 -38.840 -12.441 0.00 0.00 ATOM 106 CA ILE A 451 -10.061 -40.349 -11.175 0.00 0.00 ATOM 107 CA ASP A 452 -9.511 -43.368 -8.851 0.00 0.00 ATOM 108 CA ARG A 453 -6.799 -46.041 -8.121 0.00 0.00 TER