HEADER IMMUNE SYSTEM 20-SEP-07 2RCJ TITLE Solution structure of human Immunoglobulin M COMPND MOL_ID: 1; COMPND 2 MOLECULE: Immunoglobulin M heavy chain; COMPND 3 CHAIN: A, B, E, F, I, J, M, N, Q, R; EXPDTA SOLUTION SCATTERING DBREF 2RCJ B 1 218 PDB 2RCJ 2RCJ 1 218 SEQRES 1 B 106 VAL VAL GLN PRO GLY ARG SER LEU ARG LEU SER CYS SER SEQRES 2 B 106 SER SER GLY PHE ILE PHE SER SER TYR ALA MET TYR TRP SEQRES 3 B 106 VAL ARG GLN ALA PRO GLY LYS GLY LEU GLU TRP VAL ALA SEQRES 4 B 106 ILE ILE TRP ASP ASP GLY SER ASP GLN HIS TYR ALA ASP SEQRES 5 B 106 SER VAL LYS GLY ARG PHE THR ILE SER ARG ASN ASP SER SEQRES 6 B 106 LYS ASN THR LEU PHE LEU GLN MET ASP SER LEU ARG PRO SEQRES 7 B 106 GLU ASP THR GLY VAL TYR PHE CYS ALA ARG ASP GLY GLY SEQRES 8 B 106 SER SER ALA PRO ASP TYR TRP GLY GLN GLY THR PRO VAL SEQRES 9 B 106 THR VAL ATOM 1 CA VAL B 11 -46.259 139.125 -9.778 1.00 20.00 ATOM 2 CA VAL B 12 -49.411 137.374 -11.000 1.00 20.00 ATOM 3 CA GLN B 13 -50.497 134.621 -13.324 1.00 20.00 ATOM 4 CA PRO B 14 -52.544 135.158 -16.535 1.00 20.00 ATOM 5 CA GLY B 15 -56.160 136.121 -16.102 1.00 20.00 ATOM 6 CA ARG B 16 -55.670 137.563 -12.611 1.00 20.00 ATOM 7 CA SER B 17 -56.001 141.160 -11.335 1.00 20.00 ATOM 8 CA LEU B 18 -54.064 144.012 -9.802 1.00 20.00 ATOM 9 CA ARG B 19 -54.750 147.559 -8.717 1.00 20.00 ATOM 10 CA LEU B 20 -52.169 150.299 -8.936 1.00 20.00 ATOM 11 CA SER B 21 -52.288 153.550 -7.044 1.00 20.00 ATOM 12 CA CYS B 22 -50.457 156.835 -7.521 1.00 20.00 ATOM 13 CA SER B 23 -50.410 159.170 -4.610 1.00 20.00 ATOM 14 CA SER B 24 -49.526 162.796 -5.180 1.00 20.00 ATOM 15 CA SER B 25 -48.389 165.983 -3.379 1.00 20.00 ATOM 16 CA GLY B 26 -46.979 169.465 -4.211 1.00 20.00 ATOM 17 CA PHE B 27 -49.844 170.547 -6.544 1.00 20.00 ATOM 18 CA ILE B 28 -53.614 171.050 -6.840 1.00 20.00 ATOM 19 CA PHE B 29 -54.313 167.553 -7.999 1.00 20.00 ATOM 20 CA SER B 30 -57.853 168.170 -9.239 1.00 20.00 ATOM 21 CA SER B 31 -56.597 170.654 -11.861 1.00 20.00 ATOM 22 CA TYR B 32 -54.613 168.364 -14.051 1.00 20.00 ATOM 23 CA ALA B 33 -55.146 165.364 -16.302 1.00 20.00 ATOM 24 CA MET B 34 -53.209 162.273 -15.148 1.00 20.00 ATOM 25 CA TYR B 35 -51.540 159.487 -17.160 1.00 20.00 ATOM 26 CA TRP B 36 -50.514 155.861 -16.858 1.00 20.00 ATOM 27 CA VAL B 37 -47.532 154.816 -19.038 1.00 20.00 ATOM 28 CA ARG B 38 -45.746 151.488 -19.025 1.00 20.00 ATOM 29 CA GLN B 39 -42.414 150.032 -20.088 1.00 20.00 ATOM 30 CA ALA B 40 -41.882 146.360 -20.948 1.00 20.00 ATOM 31 CA PRO B 41 -38.398 145.107 -20.222 1.00 20.00 ATOM 32 CA GLY B 42 -36.122 145.973 -23.090 1.00 20.00 ATOM 33 CA LYS B 43 -38.813 147.938 -24.867 1.00 20.00 ATOM 34 CA GLY B 44 -39.926 151.564 -25.198 1.00 20.00 ATOM 35 CA LEU B 45 -42.508 153.763 -23.430 1.00 20.00 ATOM 36 CA GLU B 46 -46.133 152.782 -24.135 1.00 20.00 ATOM 37 CA TRP B 47 -49.028 155.075 -23.070 1.00 20.00 ATOM 38 CA VAL B 48 -51.831 153.237 -21.223 1.00 20.00 ATOM 39 CA ALA B 49 -54.477 155.779 -20.252 1.00 20.00 ATOM 40 CA ILE B 50 -55.431 159.370 -19.484 1.00 20.00 ATOM 41 CA ILE B 51 -58.142 160.768 -17.233 1.00 20.00 ATOM 42 CA TRP B 52 -59.437 164.360 -17.219 1.00 20.00 ATOM 43 CA ASP B 53 -59.063 166.686 -14.244 1.00 20.00 ATOM 44 CA ASP B 54 -62.662 166.064 -13.071 1.00 20.00 ATOM 45 CA GLY B 55 -62.697 162.438 -14.274 1.00 20.00 ATOM 46 CA SER B 56 -65.482 163.230 -16.714 1.00 20.00 ATOM 47 CA ASP B 57 -63.776 161.280 -19.434 1.00 20.00 ATOM 48 CA GLN B 58 -61.010 158.730 -19.809 1.00 20.00 ATOM 49 CA HIS B 59 -59.143 157.321 -22.844 1.00 20.00 ATOM 50 CA TYR B 60 -57.257 154.046 -23.250 1.00 20.00 ATOM 51 CA ALA B 61 -54.649 152.346 -25.448 1.00 20.00 ATOM 52 CA ASP B 62 -56.303 149.800 -27.784 1.00 20.00 ATOM 53 CA SER B 63 -54.392 146.885 -26.149 1.00 20.00 ATOM 54 CA VAL B 64 -55.937 147.583 -22.783 1.00 20.00 ATOM 55 CA LYS B 65 -59.407 148.841 -23.445 1.00 20.00 ATOM 56 CA GLY B 66 -61.969 146.977 -21.419 1.00 20.00 ATOM 57 CA ARG B 67 -59.476 145.209 -19.147 1.00 20.00 ATOM 58 CA PHE B 68 -58.088 148.356 -17.483 1.00 20.00 ATOM 59 CA THR B 69 -59.966 151.142 -15.676 1.00 20.00 ATOM 60 CA ILE B 70 -58.444 154.516 -14.821 1.00 20.00 ATOM 61 CA SER B 71 -60.119 156.480 -12.087 1.00 20.00 ATOM 62 CA ARG B 72 -59.202 159.123 -9.548 1.00 20.00 ATOM 63 CA ASN B 73 -60.073 160.471 -6.160 1.00 20.00 ATOM 64 CA ASP B 74 -59.532 164.246 -6.109 1.00 20.00 ATOM 65 CA SER B 75 -60.469 164.150 -2.492 1.00 20.00 ATOM 66 CA LYS B 76 -57.516 161.995 -1.638 1.00 20.00 ATOM 67 CA ASN B 77 -55.227 163.247 -4.469 1.00 20.00 ATOM 68 CA THR B 78 -54.854 159.609 -5.778 1.00 20.00 ATOM 69 CA LEU B 79 -54.933 158.003 -9.180 1.00 20.00 ATOM 70 CA PHE B 80 -55.906 154.328 -9.665 1.00 20.00 ATOM 71 CA LEU B 81 -55.379 151.695 -12.328 1.00 20.00 ATOM 72 CA GLN B 82 -57.631 148.599 -12.041 1.00 20.00 ATOM 73 CA MET B 83 -56.051 145.927 -14.158 1.00 20.00 ATOM 74 CA ASP B 84 -58.279 142.964 -14.937 1.00 20.00 ATOM 75 CA SER B 85 -57.668 139.744 -16.923 1.00 20.00 ATOM 76 CA LEU B 86 -53.976 140.454 -17.087 1.00 20.00 ATOM 77 CA ARG B 87 -51.863 139.054 -19.935 1.00 20.00 ATOM 78 CA PRO B 88 -48.128 138.250 -20.075 1.00 20.00 ATOM 79 CA GLU B 89 -47.736 141.108 -22.532 1.00 20.00 ATOM 80 CA ASP B 90 -48.785 143.460 -19.786 1.00 20.00 ATOM 81 CA THR B 91 -45.527 142.874 -17.962 1.00 20.00 ATOM 82 CA GLY B 92 -43.709 146.167 -17.418 1.00 20.00 ATOM 83 CA VAL B 93 -42.866 149.071 -15.150 1.00 20.00 ATOM 84 CA TYR B 94 -45.914 151.305 -14.651 1.00 20.00 ATOM 85 CA PHE B 95 -45.507 155.056 -14.302 1.00 20.00 ATOM 86 CA CYS B 96 -48.048 157.656 -13.470 1.00 20.00 ATOM 87 CA ALA B 97 -47.510 161.148 -14.811 1.00 20.00 ATOM 88 CA ARG B 98 -49.109 164.569 -14.592 1.00 20.00 ATOM 89 CA ASP B 99 -50.395 166.317 -17.722 1.00 20.00 ATOM 90 CA GLY B 100 -48.837 169.758 -17.659 1.00 20.00 ATOM 91 CA GLY B 101 -51.735 171.613 -19.283 1.00 20.00 ATOM 92 CA SER B 102 -51.980 169.898 -22.484 1.00 20.00 ATOM 93 CA SER B 103 -50.515 167.164 -24.692 1.00 20.00 ATOM 94 CA ALA B 104 -48.394 166.336 -21.659 1.00 20.00 ATOM 95 CA PRO B 105 -46.597 164.366 -19.337 1.00 20.00 ATOM 96 CA ASP B 106 -44.557 166.808 -17.339 1.00 20.00 ATOM 97 CA TYR B 107 -43.703 165.220 -14.073 1.00 20.00 ATOM 98 CA TRP B 108 -43.383 161.437 -13.693 1.00 20.00 ATOM 99 CA GLY B 109 -43.390 158.984 -10.789 1.00 20.00 ATOM 100 CA GLN B 110 -40.758 156.330 -10.090 1.00 20.00 ATOM 101 CA GLY B 111 -42.548 153.261 -11.478 1.00 20.00 ATOM 102 CA THR B 112 -44.103 150.144 -10.014 1.00 20.00 ATOM 103 CA PRO B 113 -43.203 146.785 -11.689 1.00 20.00 ATOM 104 CA VAL B 114 -45.826 144.350 -12.934 1.00 20.00 ATOM 105 CA THR B 115 -44.943 140.771 -13.867 1.00 20.00 ATOM 106 CA VAL B 116 -47.534 138.502 -15.501 1.00 20.00 TER