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 B 123 462 UNP P01877 IGHA2_HUMAN 1 340 SEQRES 1 B 113 PRO PRO PRO PRO CYS CYS HIS PRO ARG LEU SER LEU HIS SEQRES 2 B 113 ARG PRO ALA LEU GLU ASP LEU LEU LEU GLY SER GLU ALA SEQRES 3 B 113 ASN LEU THR CYS THR LEU THR GLY LEU ARG ASP ALA SER SEQRES 4 B 113 GLY ALA THR PHE THR TRP THR PRO SER SER GLY LYS SER SEQRES 5 B 113 ALA VAL GLN GLY PRO PRO GLU ARG ASP LEU CYS GLY CYS SEQRES 6 B 113 TYR SER VAL SER SER VAL LEU PRO GLY CYS ALA GLN PRO SEQRES 7 B 113 TRP ASN HIS GLY GLU THR PHE THR CYS THR ALA ALA HIS SEQRES 8 B 113 PRO GLU LEU LYS THR PRO LEU THR ALA ASN ILE THR LYS SEQRES 9 B 113 SER GLY ASN THR PHE ARG PRO GLU VAL ATOM 1 CA PRO B 227 22.703 98.559 7.923 1.00 0.00 ATOM 2 CA PRO B 228 25.154 96.041 6.069 1.00 0.00 ATOM 3 CA PRO B 229 24.349 92.062 6.672 1.00 0.00 ATOM 4 CA PRO B 230 27.333 90.115 8.031 1.00 0.00 ATOM 5 CA CYS B 231 27.455 86.208 8.357 1.00 0.00 ATOM 6 CA CYS B 232 30.659 84.177 8.910 1.00 0.00 ATOM 7 CA HIS B 233 31.875 80.678 8.103 1.00 0.00 ATOM 8 CA PRO B 234 34.485 78.465 10.024 0.00 0.00 ATOM 9 CA ARG B 235 37.819 78.570 8.070 0.00 0.00 ATOM 10 CA LEU B 236 41.281 80.165 7.471 0.00 0.00 ATOM 11 CA SER B 237 43.418 80.205 4.288 0.00 0.00 ATOM 12 CA LEU B 238 46.832 81.550 3.229 0.00 0.00 ATOM 13 CA HIS B 239 47.609 83.283 -0.073 0.00 0.00 ATOM 14 CA ARG B 240 51.100 82.845 -1.523 0.00 0.00 ATOM 15 CA PRO B 241 52.538 85.906 -3.325 0.00 0.00 ATOM 16 CA ALA B 242 52.717 86.024 -7.126 0.00 0.00 ATOM 17 CA LEU B 243 55.795 84.714 -8.942 0.00 0.00 ATOM 18 CA GLU B 244 56.065 87.398 -11.631 0.00 0.00 ATOM 19 CA ASP B 245 55.983 90.190 -9.033 0.00 0.00 ATOM 20 CA LEU B 246 58.645 88.984 -6.563 0.00 0.00 ATOM 21 CA LEU B 247 61.158 88.147 -9.313 0.00 0.00 ATOM 22 CA LEU B 248 61.156 91.510 -11.101 0.00 0.00 ATOM 23 CA GLY B 249 61.508 93.928 -8.195 0.00 0.00 ATOM 24 CA SER B 250 61.461 92.152 -4.818 0.00 0.00 ATOM 25 CA GLU B 251 57.867 93.266 -4.159 0.00 0.00 ATOM 26 CA ALA B 252 56.223 90.334 -2.362 0.00 0.00 ATOM 27 CA ASN B 253 53.515 89.887 0.283 0.00 0.00 ATOM 28 CA LEU B 254 51.785 86.935 1.960 0.00 0.00 ATOM 29 CA THR B 255 48.121 87.318 2.960 0.00 0.00 ATOM 30 CA CYS B 256 46.473 85.605 5.955 0.00 0.00 ATOM 31 CA THR B 257 42.700 86.072 5.652 0.00 0.00 ATOM 32 CA LEU B 258 40.225 84.665 8.206 0.00 0.00 ATOM 33 CA THR B 259 36.935 84.010 6.387 0.00 0.00 ATOM 34 CA GLY B 260 34.648 81.650 8.315 0.00 0.00 ATOM 35 CA LEU B 261 33.363 81.693 11.926 0.00 0.00 ATOM 36 CA ARG B 262 30.170 83.530 13.141 0.00 0.00 ATOM 37 CA ASP B 263 29.602 87.099 14.608 0.00 0.00 ATOM 38 CA ALA B 264 31.276 90.237 16.094 0.00 0.00 ATOM 39 CA SER B 265 34.705 89.922 17.739 0.00 0.00 ATOM 40 CA GLY B 266 38.258 91.142 17.067 0.00 0.00 ATOM 41 CA ALA B 267 41.296 89.191 15.880 0.00 0.00 ATOM 42 CA THR B 268 44.984 89.671 16.727 0.00 0.00 ATOM 43 CA PHE B 269 47.993 88.259 14.832 0.00 0.00 ATOM 44 CA THR B 270 51.432 86.818 15.609 0.00 0.00 ATOM 45 CA TRP B 271 53.487 86.934 12.393 0.00 0.00 ATOM 46 CA THR B 272 57.040 85.588 12.322 0.00 0.00 ATOM 47 CA PRO B 273 59.927 87.770 11.015 0.00 0.00 ATOM 48 CA SER B 274 61.895 86.951 7.857 0.00 0.00 ATOM 49 CA SER B 275 65.612 86.256 7.369 0.00 0.00 ATOM 50 CA GLY B 276 66.258 89.998 7.467 0.00 0.00 ATOM 51 CA LYS B 277 64.521 90.300 10.853 0.00 0.00 ATOM 52 CA SER B 278 61.544 92.432 9.771 0.00 0.00 ATOM 53 CA ALA B 279 57.867 92.201 10.756 0.00 0.00 ATOM 54 CA VAL B 280 55.263 94.661 9.447 0.00 0.00 ATOM 55 CA GLN B 281 51.466 94.246 9.514 0.00 0.00 ATOM 56 CA GLY B 282 48.156 96.129 9.490 0.00 0.00 ATOM 57 CA PRO B 283 44.953 93.961 9.558 0.00 0.00 ATOM 58 CA PRO B 284 41.632 95.814 8.913 0.00 0.00 ATOM 59 CA GLU B 285 37.931 94.918 9.225 0.00 0.00 ATOM 60 CA ARG B 286 35.573 94.807 6.230 0.00 0.00 ATOM 61 CA ASP B 287 32.128 93.988 4.862 0.00 0.00 ATOM 62 CA LEU B 288 31.598 91.553 1.953 0.00 0.00 ATOM 63 CA CYS B 289 28.674 89.140 2.653 0.00 0.00 ATOM 64 CA GLY B 290 27.527 90.411 6.071 0.00 0.00 ATOM 65 CA CYS B 291 29.878 89.516 8.976 0.00 0.00 ATOM 66 CA TYR B 292 33.065 91.457 10.050 0.00 0.00 ATOM 67 CA SER B 293 36.395 90.514 8.389 0.00 0.00 ATOM 68 CA VAL B 294 40.064 90.653 9.507 0.00 0.00 ATOM 69 CA SER B 295 42.913 90.143 6.971 0.00 0.00 ATOM 70 CA SER B 296 46.658 90.858 7.350 0.00 0.00 ATOM 71 CA VAL B 297 49.521 91.170 4.854 0.00 0.00 ATOM 72 CA LEU B 298 53.202 90.628 5.724 0.00 0.00 ATOM 73 CA PRO B 299 55.493 92.289 3.117 0.00 0.00 ATOM 74 CA GLY B 300 58.491 90.020 2.561 0.00 0.00 ATOM 75 CA CYS B 301 61.686 90.130 0.505 0.00 0.00 ATOM 76 CA ALA B 302 62.911 87.925 -2.356 0.00 0.00 ATOM 77 CA GLN B 303 65.891 86.278 -0.632 0.00 0.00 ATOM 78 CA PRO B 304 63.908 84.526 2.143 0.00 0.00 ATOM 79 CA TRP B 305 61.494 83.051 -0.415 0.00 0.00 ATOM 80 CA ASN B 306 64.372 81.941 -2.658 0.00 0.00 ATOM 81 CA HIS B 307 66.251 80.370 0.259 0.00 0.00 ATOM 82 CA GLY B 308 63.108 78.960 1.864 0.00 0.00 ATOM 83 CA GLU B 309 61.955 80.450 5.172 0.00 0.00 ATOM 84 CA THR B 310 58.962 79.246 7.215 0.00 0.00 ATOM 85 CA PHE B 311 56.168 81.848 7.050 0.00 0.00 ATOM 86 CA THR B 312 53.633 81.005 9.779 0.00 0.00 ATOM 87 CA CYS B 313 50.511 82.964 10.837 0.00 0.00 ATOM 88 CA THR B 314 48.978 82.300 14.269 0.00 0.00 ATOM 89 CA ALA B 315 45.736 83.970 15.391 0.00 0.00 ATOM 90 CA ALA B 316 44.501 83.958 18.995 0.00 0.00 ATOM 91 CA HIS B 317 40.780 84.229 19.834 0.00 0.00 ATOM 92 CA PRO B 318 38.411 83.638 22.793 0.00 0.00 ATOM 93 CA GLU B 319 36.024 81.364 20.914 0.00 0.00 ATOM 94 CA LEU B 320 38.584 80.115 18.412 0.00 0.00 ATOM 95 CA LYS B 321 40.229 78.759 21.549 0.00 0.00 ATOM 96 CA THR B 322 42.863 76.719 19.693 0.00 0.00 ATOM 97 CA PRO B 323 44.840 79.446 17.866 0.00 0.00 ATOM 98 CA LEU B 324 44.977 78.141 14.297 0.00 0.00 ATOM 99 CA THR B 325 48.569 77.778 13.108 0.00 0.00 ATOM 100 CA ALA B 326 49.335 77.875 9.371 0.00 0.00 ATOM 101 CA ASN B 327 52.755 77.517 7.729 0.00 0.00 ATOM 102 CA ILE B 328 53.779 77.826 4.064 0.00 0.00 ATOM 103 CA THR B 329 57.134 77.337 2.322 0.00 0.00 ATOM 104 CA LYS B 330 58.399 76.263 -1.112 0.00 0.00 ATOM 105 CA SER B 331 58.373 72.627 -2.255 0.00 0.00 ATOM 106 CA GLY B 332 60.533 69.706 -3.334 0.00 0.00 ATOM 107 CA ASN B 333 64.304 69.236 -3.376 0.00 0.00 ATOM 108 CA THR B 334 66.815 70.843 -5.777 0.00 0.00 ATOM 109 CA PHE B 335 67.518 69.386 -9.240 0.00 0.00 ATOM 110 CA ARG B 336 70.091 70.790 -11.687 0.00 0.00 ATOM 111 CA PRO B 337 68.569 72.064 -14.996 0.00 0.00 ATOM 112 CA GLU B 338 69.865 70.696 -18.304 0.00 0.00 ATOM 113 CA VAL B 339 69.676 73.241 -21.135 0.00 0.00 TER