HEADER IMMUNE SYSTEM 21-MAR-08 3CM9 TITLE Solution Structure of Human SIgA2 COMPND MOL_ID: 1; COMPND 2 MOLECULE: Immunoglobulin kappa light chain; COMPND 3 CHAIN: A, B, C, D; EXPDTA SOLUTION SCATTERING DBREF 3CM9 C 123 462 UNP P01877 IGHA2_HUMAN 1 340 SEQRES 1 C 122 GLN VAL LYS LEU LEU GLU GLN SER GLY ALA GLU VAL LYS SEQRES 2 C 122 LYS PRO GLY ALA SER VAL LYS VAL SER CYS LYS ALA SER SEQRES 3 C 122 GLY TYR SER PHE THR SER TYR GLY LEU HIS TRP VAL ARG SEQRES 4 C 122 GLN ALA PRO GLY GLN ARG LEU GLU TRP MET GLY TRP ILE SEQRES 5 C 122 SER ALA GLY THR GLY ASN THR LYS TYR SER GLN LYS PHE SEQRES 6 C 122 ARG GLY ARG VAL THR PHE THR ARG ASP THR SER ALA THR SEQRES 7 C 122 THR ALA TYR MET GLY LEU SER SER LEU ARG PRO GLU ASP SEQRES 8 C 122 THR ALA VAL TYR TYR CYS ALA ARG ASP PRO TYR GLY GLY SEQRES 9 C 122 GLY LYS SER GLU PHE ASP TYR TRP GLY GLN GLY THR LEU SEQRES 10 C 122 VAL THR VAL SER SER ATOM 1 CA GLN C 1 61.972 45.225-153.720 0.00 0.00 ATOM 2 CA VAL C 2 63.443 43.918-150.465 0.00 0.00 ATOM 3 CA LYS C 3 66.158 41.373-151.327 0.00 0.00 ATOM 4 CA LEU C 4 64.884 38.827-153.896 0.00 0.00 ATOM 5 CA LEU C 5 64.448 35.778-151.664 0.00 0.00 ATOM 6 CA GLU C 6 64.363 36.755-147.963 0.00 0.00 ATOM 7 CA GLN C 7 64.521 33.726-145.642 0.00 0.00 ATOM 8 CA SER C 8 63.870 33.347-141.898 0.00 0.00 ATOM 9 CA GLY C 9 66.074 33.261-138.796 0.00 0.00 ATOM 10 CA ALA C 10 68.231 30.752-136.926 0.00 0.00 ATOM 11 CA GLU C 11 65.978 28.513-134.814 0.00 0.00 ATOM 12 CA VAL C 12 67.619 26.794-131.842 0.00 0.00 ATOM 13 CA LYS C 13 65.965 23.384-131.519 0.00 0.00 ATOM 14 CA LYS C 14 66.604 20.736-128.870 0.00 0.00 ATOM 15 CA PRO C 15 67.454 17.236-130.254 0.00 0.00 ATOM 16 CA GLY C 16 64.212 15.487-131.151 0.00 0.00 ATOM 17 CA ALA C 17 62.211 18.565-132.142 0.00 0.00 ATOM 18 CA SER C 18 60.828 20.083-135.355 0.00 0.00 ATOM 19 CA VAL C 19 62.038 22.983-137.527 0.00 0.00 ATOM 20 CA LYS C 20 60.242 24.967-140.255 0.00 0.00 ATOM 21 CA VAL C 21 62.277 27.429-142.344 0.00 0.00 ATOM 22 CA SER C 22 60.466 29.709-144.812 0.00 0.00 ATOM 23 CA CYS C 23 61.537 31.407-148.064 0.00 0.00 ATOM 24 CA LYS C 24 59.747 34.619-149.084 0.00 0.00 ATOM 25 CA ALA C 25 59.983 35.665-152.743 0.00 0.00 ATOM 26 CA SER C 26 59.483 38.963-154.586 0.00 0.00 ATOM 27 CA GLY C 27 60.157 40.918-157.763 0.00 0.00 ATOM 28 CA TYR C 28 59.378 37.946-160.006 0.00 0.00 ATOM 29 CA SER C 29 56.451 35.608-160.707 0.00 0.00 ATOM 30 CA PHE C 30 56.160 32.863-158.070 0.00 0.00 ATOM 31 CA THR C 31 54.123 30.322-160.066 0.00 0.00 ATOM 32 CA SER C 32 56.685 30.282-162.893 0.00 0.00 ATOM 33 CA TYR C 33 59.874 29.176-161.095 0.00 0.00 ATOM 34 CA GLY C 34 60.836 26.386-158.693 0.00 0.00 ATOM 35 CA LEU C 35 62.845 26.416-155.444 0.00 0.00 ATOM 36 CA HIS C 36 65.624 24.045-154.311 0.00 0.00 ATOM 37 CA TRP C 37 66.935 23.637-150.751 0.00 0.00 ATOM 38 CA VAL C 38 70.678 23.279-150.061 0.00 0.00 ATOM 39 CA ARG C 39 72.502 23.338-146.703 0.00 0.00 ATOM 40 CA GLN C 40 76.112 23.359-145.418 0.00 0.00 ATOM 41 CA ALA C 41 77.664 21.877-142.262 0.00 0.00 ATOM 42 CA PRO C 42 80.383 23.953-140.494 0.00 0.00 ATOM 43 CA GLY C 43 83.556 23.047-142.368 0.00 0.00 ATOM 44 CA GLN C 44 81.935 20.776-144.963 0.00 0.00 ATOM 45 CA ARG C 45 80.569 20.953-148.529 0.00 0.00 ATOM 46 CA LEU C 46 77.051 21.952-149.640 0.00 0.00 ATOM 47 CA GLU C 47 74.462 19.148-149.670 0.00 0.00 ATOM 48 CA TRP C 48 71.260 19.200-151.744 0.00 0.00 ATOM 49 CA MET C 49 68.107 18.431-149.744 0.00 0.00 ATOM 50 CA GLY C 50 65.267 18.718-152.247 0.00 0.00 ATOM 51 CA TRP C 51 63.025 20.718-154.575 0.00 0.00 ATOM 52 CA ILE C 52 59.391 21.827-154.914 0.00 0.00 ATOM 53 CA SER C 53 57.504 23.317-157.871 0.00 0.00 ATOM 54 CA ALA C 54 55.523 26.473-157.088 0.00 0.00 ATOM 55 CA GLY C 55 53.061 25.778-159.896 0.00 0.00 ATOM 56 CA THR C 56 51.728 22.292-159.151 0.00 0.00 ATOM 57 CA GLY C 57 53.334 21.328-155.841 0.00 0.00 ATOM 58 CA ASN C 58 55.350 18.226-156.753 0.00 0.00 ATOM 59 CA THR C 59 57.977 17.085-154.237 0.00 0.00 ATOM 60 CA LYS C 60 61.390 15.698-155.244 0.00 0.00 ATOM 61 CA TYR C 61 63.827 15.170-152.357 0.00 0.00 ATOM 62 CA SER C 62 66.908 12.977-151.902 0.00 0.00 ATOM 63 CA GLN C 63 67.065 9.475-150.393 0.00 0.00 ATOM 64 CA LYS C 64 69.209 10.827-147.543 0.00 0.00 ATOM 65 CA PHE C 65 66.452 12.489-145.504 0.00 0.00 ATOM 66 CA ARG C 66 63.832 9.903-146.509 0.00 0.00 ATOM 67 CA GLY C 67 60.886 9.889-144.117 0.00 0.00 ATOM 68 CA ARG C 68 61.570 13.114-142.206 0.00 0.00 ATOM 69 CA VAL C 69 61.466 15.927-144.769 0.00 0.00 ATOM 70 CA THR C 70 58.518 17.840-146.223 0.00 0.00 ATOM 71 CA PHE C 71 57.977 20.823-148.528 0.00 0.00 ATOM 72 CA THR C 72 54.932 23.120-148.536 0.00 0.00 ATOM 73 CA ARG C 73 54.040 26.289-150.468 0.00 0.00 ATOM 74 CA ASP C 74 51.437 29.044-150.053 0.00 0.00 ATOM 75 CA THR C 75 50.240 30.409-153.415 0.00 0.00 ATOM 76 CA SER C 76 48.633 33.659-152.213 0.00 0.00 ATOM 77 CA ALA C 77 51.412 34.400-149.703 0.00 0.00 ATOM 78 CA THR C 78 54.478 33.926-151.940 0.00 0.00 ATOM 79 CA THR C 79 56.537 31.919-149.419 0.00 0.00 ATOM 80 CA ALA C 80 58.090 28.436-149.549 0.00 0.00 ATOM 81 CA TYR C 81 58.529 26.083-146.581 0.00 0.00 ATOM 82 CA MET C 82 60.669 23.173-145.372 0.00 0.00 ATOM 83 CA GLY C 83 60.126 20.654-142.577 0.00 0.00 ATOM 84 CA LEU C 84 62.464 18.259-140.745 0.00 0.00 ATOM 85 CA SER C 85 61.488 16.063-137.774 0.00 0.00 ATOM 86 CA SER C 86 63.749 14.111-135.380 0.00 0.00 ATOM 87 CA LEU C 87 66.632 16.620-135.375 0.00 0.00 ATOM 88 CA ARG C 88 70.115 15.416-134.398 0.00 0.00 ATOM 89 CA PRO C 89 73.375 17.057-133.139 0.00 0.00 ATOM 90 CA GLU C 90 74.827 16.690-136.646 0.00 0.00 ATOM 91 CA ASP C 91 72.180 18.791-138.418 0.00 0.00 ATOM 92 CA THR C 92 73.905 22.043-137.392 0.00 0.00 ATOM 93 CA ALA C 93 74.121 23.689-140.822 0.00 0.00 ATOM 94 CA VAL C 94 73.267 26.803-142.824 0.00 0.00 ATOM 95 CA TYR C 95 70.235 26.178-145.044 0.00 0.00 ATOM 96 CA TYR C 96 69.518 28.073-148.276 0.00 0.00 ATOM 97 CA CYS C 97 66.608 28.233-150.727 0.00 0.00 ATOM 98 CA ALA C 98 67.789 28.659-154.317 0.00 0.00 ATOM 99 CA ARG C 99 65.534 29.323-157.317 0.00 0.00 ATOM 100 CA ASP C 100 64.871 27.253-160.458 0.00 0.00 ATOM 101 CA PRO C 101 65.537 29.225-163.708 0.00 0.00 ATOM 102 CA TYR C 102 63.674 26.560-165.709 0.00 0.00 ATOM 103 CA GLY C 103 61.079 24.900-163.483 0.00 0.00 ATOM 104 CA GLY C 104 62.262 21.389-164.278 0.00 0.00 ATOM 105 CA GLY C 105 63.763 20.262-160.989 0.00 0.00 ATOM 106 CA LYS C 106 67.274 19.668-162.322 0.00 0.00 ATOM 107 CA SER C 107 69.519 22.652-163.112 0.00 0.00 ATOM 108 CA GLU C 108 71.710 25.438-161.680 0.00 0.00 ATOM 109 CA PHE C 109 70.990 28.078-159.011 0.00 0.00 ATOM 110 CA ASP C 110 70.995 31.772-159.966 0.00 0.00 ATOM 111 CA TYR C 111 69.482 33.300-156.810 0.00 0.00 ATOM 112 CA TRP C 112 70.503 32.358-153.261 0.00 0.00 ATOM 113 CA GLY C 113 69.118 33.586-149.943 0.00 0.00 ATOM 114 CA GLN C 114 70.854 34.772-146.766 0.00 0.00 ATOM 115 CA GLY C 115 70.828 31.390-145.044 0.00 0.00 ATOM 116 CA THR C 116 69.439 30.033-141.777 0.00 0.00 ATOM 117 CA LEU C 117 71.742 28.441-139.193 0.00 0.00 ATOM 118 CA VAL C 118 69.731 25.848-137.255 0.00 0.00 ATOM 119 CA THR C 119 71.810 24.613-134.308 0.00 0.00 ATOM 120 CA VAL C 120 70.556 21.475-132.561 0.00 0.00 ATOM 121 CA SER C 121 71.927 21.258-129.006 0.00 0.00 ATOM 122 CA SER C 122 70.388 20.382-125.625 0.00 0.00 TER