HEADER IMMUNE SYSTEM 02-AUG-07 2QTJ TITLE Solution structure of human dimeric immunoglobulin A COMPND MOL_ID: 1; COMPND 2 MOLECULE: Kappa light chain IgA1; COMPND 3 CHAIN: L, M, N, O; EXPDTA SOLUTION SCATTERING DBREF 2QTJ M 1 214 PDB 2QTJ 2QTJ 1 214 SEQRES 1 M 107 ARG THR VAL ALA ALA PRO SER VAL PHE ILE PHE PRO PRO SEQRES 2 M 107 SER ASP GLU GLN LEU LYS SER GLY THR ALA SER VAL VAL SEQRES 3 M 107 CYS LEU LEU ASN ASN PHE TYR PRO ARG GLU ALA LYS VAL SEQRES 4 M 107 GLN TRP LYS VAL ASP ASN ALA LEU GLN SER GLY ASN SER SEQRES 5 M 107 GLN GLU SER VAL THR GLU GLN ASP SER LYS ASP SER THR SEQRES 6 M 107 TYR SER LEU SER SER THR LEU THR LEU SER LYS ALA ASP SEQRES 7 M 107 TYR GLU LYS HIS LYS VAL TYR ALA CYS GLU VAL THR HIS SEQRES 8 M 107 GLN GLY LEU SER SER PRO VAL THR LYS SER PHE ASN ARG SEQRES 9 M 107 GLY GLU CYS ATOM 1 CA ARG M 108 -31.236 37.339 -36.885 1.00 24.49 ATOM 2 CA THR M 109 -27.722 37.910 -35.440 1.00 29.53 ATOM 3 CA VAL M 110 -26.722 41.295 -33.934 1.00 29.75 ATOM 4 CA ALA M 111 -25.322 43.806 -36.342 1.00 23.83 ATOM 5 CA ALA M 112 -23.671 46.965 -35.094 1.00 21.37 ATOM 6 CA PRO M 113 -24.626 50.195 -36.786 1.00 22.37 ATOM 7 CA SER M 114 -22.565 52.421 -39.072 1.00 26.25 ATOM 8 CA VAL M 115 -22.944 55.953 -37.654 1.00 23.61 ATOM 9 CA PHE M 116 -22.865 59.177 -39.658 1.00 24.26 ATOM 10 CA ILE M 117 -23.465 62.801 -38.632 1.00 27.56 ATOM 11 CA PHE M 118 -24.387 65.684 -40.965 1.00 34.05 ATOM 12 CA PRO M 119 -24.120 69.461 -40.248 1.00 42.24 ATOM 13 CA PRO M 120 -26.896 71.983 -41.306 1.00 36.96 ATOM 14 CA SER M 121 -26.594 72.977 -44.945 1.00 39.63 ATOM 15 CA ASP M 122 -25.869 76.581 -45.867 1.00 49.87 ATOM 16 CA GLU M 123 -29.180 77.449 -47.401 1.00 43.74 ATOM 17 CA GLN M 124 -30.880 75.948 -44.422 1.00 38.32 ATOM 18 CA LEU M 125 -29.073 78.354 -42.007 1.00 43.28 ATOM 19 CA LYS M 126 -30.193 81.113 -44.475 1.00 49.04 ATOM 20 CA SER M 127 -33.832 80.401 -43.338 1.00 49.80 ATOM 21 CA GLY M 128 -32.908 80.912 -39.685 1.00 47.11 ATOM 22 CA THR M 129 -33.031 77.102 -38.709 1.00 43.85 ATOM 23 CA ALA M 130 -30.476 74.359 -38.346 1.00 34.62 ATOM 24 CA SER M 131 -31.191 70.609 -38.504 1.00 27.40 ATOM 25 CA VAL M 132 -28.352 68.277 -37.494 1.00 24.83 ATOM 26 CA VAL M 133 -28.851 64.597 -38.538 1.00 21.58 ATOM 27 CA CYS M 134 -27.238 61.486 -37.055 1.00 19.24 ATOM 28 CA LEU M 135 -27.641 58.248 -39.081 1.00 20.22 ATOM 29 CA LEU M 136 -27.314 54.732 -37.686 1.00 20.07 ATOM 30 CA ASN M 137 -27.292 52.471 -40.732 1.00 21.10 ATOM 31 CA ASN M 138 -28.081 48.792 -40.894 1.00 21.31 ATOM 32 CA PHE M 139 -28.330 47.249 -37.496 1.00 24.82 ATOM 33 CA TYR M 140 -30.073 44.441 -35.618 1.00 24.60 ATOM 34 CA PRO M 141 -31.887 44.319 -32.996 1.00 24.13 ATOM 35 CA ARG M 142 -33.923 47.543 -33.384 1.00 29.02 ATOM 36 CA GLU M 143 -33.196 48.941 -29.907 1.00 38.03 ATOM 37 CA ALA M 144 -30.475 51.638 -29.884 1.00 31.79 ATOM 38 CA LYS M 145 -30.019 54.923 -27.956 1.00 33.25 ATOM 39 CA VAL M 146 -28.912 58.239 -29.553 1.00 33.79 ATOM 40 CA GLN M 147 -27.773 61.044 -27.263 1.00 37.56 ATOM 41 CA TRP M 148 -26.972 64.539 -28.479 1.00 33.14 ATOM 42 CA LYS M 149 -24.375 66.641 -26.694 1.00 33.87 ATOM 43 CA VAL M 150 -23.683 70.252 -27.760 1.00 38.45 ATOM 44 CA ASP M 151 -20.564 71.742 -26.067 1.00 52.78 ATOM 45 CA ASN M 152 -19.662 68.388 -24.639 1.00 62.57 ATOM 46 CA ALA M 153 -21.970 67.008 -21.894 1.00 68.87 ATOM 47 CA LEU M 154 -24.606 69.718 -22.394 1.00 64.52 ATOM 48 CA GLN M 155 -26.620 66.868 -23.707 1.00 56.73 ATOM 49 CA SER M 156 -30.002 67.797 -24.997 1.00 51.84 ATOM 50 CA GLY M 157 -33.779 66.874 -25.135 1.00 52.14 ATOM 51 CA ASN M 158 -35.048 68.514 -28.532 1.00 46.46 ATOM 52 CA SER M 159 -34.608 65.729 -31.155 1.00 38.82 ATOM 53 CA GLN M 160 -36.934 63.473 -33.160 1.00 35.88 ATOM 54 CA GLU M 161 -36.285 59.930 -34.456 1.00 30.57 ATOM 55 CA SER M 162 -37.417 57.803 -37.392 1.00 24.52 ATOM 56 CA VAL M 163 -36.716 54.060 -37.888 1.00 21.28 ATOM 57 CA THR M 164 -37.265 52.257 -41.146 1.00 26.66 ATOM 58 CA GLU M 165 -39.128 48.865 -41.339 1.00 29.01 ATOM 59 CA GLN M 166 -37.090 45.633 -41.570 1.00 23.36 ATOM 60 CA ASP M 167 -35.202 45.208 -44.807 1.00 23.58 ATOM 61 CA SER M 168 -36.407 42.187 -46.804 1.00 28.49 ATOM 62 CA LYS M 169 -32.876 41.315 -47.853 1.00 35.63 ATOM 63 CA ASP M 170 -30.776 41.453 -44.645 1.00 28.71 ATOM 64 CA SER M 171 -33.330 42.017 -41.836 1.00 22.47 ATOM 65 CA THR M 172 -31.824 45.245 -40.485 1.00 21.14 ATOM 66 CA TYR M 173 -33.197 48.645 -39.473 1.00 22.96 ATOM 67 CA SER M 174 -31.727 52.086 -40.039 1.00 20.50 ATOM 68 CA LEU M 175 -32.528 55.127 -37.849 1.00 18.39 ATOM 69 CA SER M 176 -32.209 58.947 -38.025 1.00 20.18 ATOM 70 CA SER M 177 -32.196 61.422 -35.217 1.00 22.83 ATOM 71 CA THR M 178 -32.725 65.070 -36.172 1.00 25.67 ATOM 72 CA LEU M 179 -31.732 67.744 -33.712 1.00 31.29 ATOM 73 CA THR M 180 -33.349 71.070 -34.595 1.00 36.96 ATOM 74 CA LEU M 181 -32.256 74.408 -33.237 1.00 41.68 ATOM 75 CA SER M 182 -32.510 77.992 -34.470 1.00 42.32 ATOM 76 CA LYS M 183 -29.621 79.598 -36.527 1.00 44.83 ATOM 77 CA ALA M 184 -28.796 81.722 -33.420 1.00 49.35 ATOM 78 CA ASP M 185 -28.754 78.704 -31.091 1.00 55.55 ATOM 79 CA TYR M 186 -26.516 76.794 -33.445 1.00 51.76 ATOM 80 CA GLU M 187 -24.244 79.909 -33.817 1.00 55.70 ATOM 81 CA LYS M 188 -23.316 79.857 -30.211 1.00 52.94 ATOM 82 CA HIS M 189 -22.020 76.369 -29.712 1.00 55.05 ATOM 83 CA LYS M 190 -19.114 74.611 -31.481 1.00 52.83 ATOM 84 CA VAL M 191 -18.886 70.817 -30.721 1.00 47.03 ATOM 85 CA TYR M 192 -21.990 68.946 -31.917 1.00 38.28 ATOM 86 CA ALA M 193 -21.983 65.216 -31.163 1.00 34.05 ATOM 87 CA CYS M 194 -24.101 62.093 -31.600 1.00 33.19 ATOM 88 CA GLU M 195 -23.421 59.288 -29.065 1.00 34.51 ATOM 89 CA VAL M 196 -24.750 55.812 -29.892 1.00 28.87 ATOM 90 CA THR M 197 -25.427 52.795 -27.725 1.00 27.94 ATOM 91 CA HIS M 198 -26.434 49.462 -29.252 1.00 28.54 ATOM 92 CA GLN M 199 -25.716 45.785 -28.401 1.00 33.17 ATOM 93 CA GLY M 200 -23.312 45.086 -31.315 1.00 27.71 ATOM 94 CA LEU M 201 -20.870 47.861 -30.379 1.00 25.11 ATOM 95 CA SER M 202 -18.186 47.236 -27.710 1.00 34.19 ATOM 96 CA SER M 203 -18.205 50.872 -26.602 1.00 35.61 ATOM 97 CA PRO M 204 -20.650 53.822 -27.137 1.00 33.06 ATOM 98 CA VAL M 205 -19.781 55.514 -30.440 1.00 34.47 ATOM 99 CA THR M 206 -19.497 59.301 -30.915 1.00 35.46 ATOM 100 CA LYS M 207 -19.496 61.231 -34.187 1.00 36.49 ATOM 101 CA SER M 208 -18.819 64.931 -33.680 1.00 38.05 ATOM 102 CA PHE M 209 -18.060 67.981 -35.756 1.00 41.72 ATOM 103 CA ASN M 210 -16.940 71.509 -35.078 1.00 54.97 ATOM 104 CA ARG M 211 -19.129 74.451 -36.172 1.00 61.26 ATOM 105 CA GLY M 212 -16.836 75.893 -38.879 1.00 79.44 ATOM 106 CA GLU M 213 -16.347 72.852 -41.260 1.00 93.23 ATOM 107 CA CYS M 214 -14.086 72.826 -44.407 1.00101.74 TER