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 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 -16.417 -18.127 -29.959 1.00 0.00 ATOM 2 CA THR A 347 -16.900 -21.015 -27.394 1.00 0.00 ATOM 3 CA PHE A 348 -15.153 -24.495 -27.138 1.00 0.00 ATOM 4 CA ARG A 349 -16.012 -27.429 -24.723 1.00 0.00 ATOM 5 CA PRO A 350 -13.220 -28.179 -22.108 1.00 0.00 ATOM 6 CA GLU A 351 -11.700 -31.685 -22.290 1.00 0.00 ATOM 7 CA VAL A 352 -11.145 -32.743 -18.605 1.00 0.00 ATOM 8 CA HIS A 353 -8.643 -35.632 -17.987 1.00 0.00 ATOM 9 CA LEU A 354 -7.683 -36.612 -14.382 1.00 0.00 ATOM 10 CA LEU A 355 -4.087 -37.852 -13.931 1.00 0.00 ATOM 11 CA PRO A 356 -2.968 -40.006 -10.914 1.00 0.00 ATOM 12 CA PRO A 357 0.495 -39.406 -9.285 1.00 0.00 ATOM 13 CA PRO A 358 3.785 -40.629 -10.827 1.00 0.00 ATOM 14 CA SER A 359 5.293 -43.896 -9.402 1.00 0.00 ATOM 15 CA GLU A 360 8.349 -41.939 -8.036 1.00 0.00 ATOM 16 CA GLU A 361 6.089 -39.447 -6.088 1.00 0.00 ATOM 17 CA LEU A 362 4.794 -42.456 -4.024 1.00 0.00 ATOM 18 CA ALA A 363 8.350 -42.486 -2.511 1.00 0.00 ATOM 19 CA LEU A 364 7.177 -39.092 -1.016 1.00 0.00 ATOM 20 CA ASN A 365 4.728 -38.847 1.990 1.00 0.00 ATOM 21 CA GLU A 366 2.767 -35.696 3.176 1.00 0.00 ATOM 22 CA LEU A 367 1.402 -34.612 -0.276 1.00 0.00 ATOM 23 CA VAL A 368 0.415 -36.837 -3.287 1.00 0.00 ATOM 24 CA THR A 369 0.055 -34.798 -6.434 1.00 0.00 ATOM 25 CA LEU A 370 -3.447 -35.380 -7.969 1.00 0.00 ATOM 26 CA THR A 371 -3.587 -33.542 -11.314 1.00 0.00 ATOM 27 CA CYS A 372 -6.502 -32.625 -13.602 1.00 0.00 ATOM 28 CA LEU A 373 -5.831 -31.219 -17.100 1.00 0.00 ATOM 29 CA ALA A 374 -8.572 -28.958 -18.574 1.00 0.00 ATOM 30 CA ARG A 375 -7.602 -28.426 -22.255 1.00 0.00 ATOM 31 CA GLY A 376 -8.964 -27.090 -25.604 1.00 0.00 ATOM 32 CA PHE A 377 -11.403 -24.620 -23.926 1.00 0.00 ATOM 33 CA SER A 378 -12.552 -21.062 -24.931 1.00 0.00 ATOM 34 CA PRO A 379 -13.095 -18.436 -23.767 1.00 0.00 ATOM 35 CA LYS A 380 -10.493 -18.505 -20.892 1.00 0.00 ATOM 36 CA ASP A 381 -13.371 -18.019 -18.457 1.00 0.00 ATOM 37 CA VAL A 382 -13.520 -21.219 -16.277 1.00 0.00 ATOM 38 CA LEU A 383 -13.878 -22.443 -12.623 1.00 0.00 ATOM 39 CA VAL A 384 -12.128 -25.608 -11.430 1.00 0.00 ATOM 40 CA ARG A 385 -12.657 -27.064 -7.902 1.00 0.00 ATOM 41 CA TRP A 386 -11.825 -30.362 -6.120 1.00 0.00 ATOM 42 CA LEU A 387 -14.003 -32.672 -3.964 1.00 0.00 ATOM 43 CA GLN A 388 -13.321 -35.563 -1.540 1.00 0.00 ATOM 44 CA GLY A 389 -15.607 -38.661 -1.978 1.00 0.00 ATOM 45 CA SER A 390 -14.473 -40.247 1.367 1.00 0.00 ATOM 46 CA GLN A 391 -15.913 -37.385 3.571 1.00 0.00 ATOM 47 CA GLU A 392 -18.578 -36.043 1.065 1.00 0.00 ATOM 48 CA LEU A 393 -16.918 -32.566 1.294 1.00 0.00 ATOM 49 CA PRO A 394 -14.977 -29.958 -0.782 1.00 0.00 ATOM 50 CA ARG A 395 -11.142 -30.055 -0.480 1.00 0.00 ATOM 51 CA GLU A 396 -8.571 -27.451 0.667 1.00 0.00 ATOM 52 CA LYS A 397 -4.982 -28.224 -0.429 1.00 0.00 ATOM 53 CA TYR A 398 -5.262 -27.436 -4.156 1.00 0.00 ATOM 54 CA LEU A 399 -3.755 -24.841 -6.539 1.00 0.00 ATOM 55 CA THR A 400 -4.772 -23.953 -10.177 1.00 0.00 ATOM 56 CA TRP A 401 -2.329 -22.345 -12.729 1.00 0.00 ATOM 57 CA ALA A 402 -2.964 -20.838 -16.286 1.00 0.00 ATOM 58 CA SER A 403 -2.031 -21.090 -20.065 1.00 0.00 ATOM 59 CA ARG A 404 -3.659 -19.196 -23.041 1.00 0.00 ATOM 60 CA GLN A 405 -2.343 -20.906 -26.264 1.00 0.00 ATOM 61 CA GLU A 406 -1.670 -18.534 -29.262 1.00 0.00 ATOM 62 CA PRO A 407 1.115 -19.086 -31.915 1.00 0.00 ATOM 63 CA SER A 408 1.405 -17.500 -35.461 1.00 0.00 ATOM 64 CA GLN A 409 -1.374 -19.809 -36.876 1.00 0.00 ATOM 65 CA GLY A 410 -5.225 -19.866 -36.536 1.00 0.00 ATOM 66 CA THR A 411 -4.994 -22.342 -33.575 1.00 0.00 ATOM 67 CA THR A 412 -5.952 -20.426 -30.331 1.00 0.00 ATOM 68 CA THR A 413 -7.678 -22.176 -27.285 1.00 0.00 ATOM 69 CA PHE A 414 -6.629 -22.455 -23.528 1.00 0.00 ATOM 70 CA ALA A 415 -5.226 -25.122 -21.170 1.00 0.00 ATOM 71 CA VAL A 416 -4.815 -25.276 -17.336 1.00 0.00 ATOM 72 CA THR A 417 -3.564 -27.876 -14.843 1.00 0.00 ATOM 73 CA SER A 418 -5.047 -28.047 -11.296 1.00 0.00 ATOM 74 CA ILE A 419 -2.980 -29.674 -8.505 1.00 0.00 ATOM 75 CA LEU A 420 -4.709 -31.322 -5.454 1.00 0.00 ATOM 76 CA ARG A 421 -2.094 -32.400 -2.889 1.00 0.00 ATOM 77 CA VAL A 422 -3.119 -35.325 -0.529 1.00 0.00 ATOM 78 CA ALA A 423 -1.543 -37.628 2.115 1.00 0.00 ATOM 79 CA ALA A 424 -0.044 -40.788 0.408 1.00 0.00 ATOM 80 CA GLU A 425 -2.234 -42.954 2.739 1.00 0.00 ATOM 81 CA ASP A 426 -5.756 -41.617 1.732 1.00 0.00 ATOM 82 CA TRP A 427 -5.053 -42.247 -2.000 1.00 0.00 ATOM 83 CA LYS A 428 -4.009 -45.864 -1.015 1.00 0.00 ATOM 84 CA LYS A 429 -7.083 -46.172 1.325 1.00 0.00 ATOM 85 CA GLY A 430 -8.971 -46.173 -2.050 1.00 0.00 ATOM 86 CA ASP A 431 -10.469 -42.667 -1.862 1.00 0.00 ATOM 87 CA THR A 432 -12.246 -41.095 -4.866 1.00 0.00 ATOM 88 CA PHE A 433 -11.253 -37.443 -5.527 1.00 0.00 ATOM 89 CA SER A 434 -13.136 -35.483 -8.245 1.00 0.00 ATOM 90 CA CYS A 435 -12.130 -32.422 -10.272 1.00 0.00 ATOM 91 CA MET A 436 -15.268 -30.301 -11.037 1.00 0.00 ATOM 92 CA VAL A 437 -14.988 -27.958 -14.077 1.00 0.00 ATOM 93 CA GLY A 438 -17.543 -25.179 -14.800 1.00 0.00 ATOM 94 CA HIS A 439 -17.485 -23.519 -18.234 1.00 0.00 ATOM 95 CA GLU A 440 -19.830 -21.718 -20.754 1.00 0.00 ATOM 96 CA ALA A 441 -19.652 -24.664 -23.267 1.00 0.00 ATOM 97 CA LEU A 442 -20.159 -27.589 -20.789 1.00 0.00 ATOM 98 CA PRO A 443 -23.511 -29.560 -21.054 1.00 0.00 ATOM 99 CA LEU A 444 -25.127 -28.298 -17.784 1.00 0.00 ATOM 100 CA ALA A 445 -22.355 -25.618 -17.402 1.00 0.00 ATOM 101 CA PHE A 446 -20.733 -28.298 -15.192 1.00 0.00 ATOM 102 CA THR A 447 -18.742 -31.529 -15.625 1.00 0.00 ATOM 103 CA GLN A 448 -16.877 -33.626 -13.026 1.00 0.00 ATOM 104 CA LYS A 449 -14.140 -36.247 -13.763 1.00 0.00 ATOM 105 CA THR A 450 -13.034 -38.641 -10.959 1.00 0.00 ATOM 106 CA ILE A 451 -9.688 -40.150 -9.693 1.00 0.00 ATOM 107 CA ASP A 452 -9.138 -43.169 -7.369 1.00 0.00 ATOM 108 CA ARG A 453 -6.426 -45.842 -6.639 1.00 0.00 TER