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 O 1 214 PDB 2QTJ 2QTJ 1 214 SEQRES 1 O 107 ARG THR VAL ALA ALA PRO SER VAL PHE ILE PHE PRO PRO SEQRES 2 O 107 SER ASP GLU GLN LEU LYS SER GLY THR ALA SER VAL VAL SEQRES 3 O 107 CYS LEU LEU ASN ASN PHE TYR PRO ARG GLU ALA LYS VAL SEQRES 4 O 107 GLN TRP LYS VAL ASP ASN ALA LEU GLN SER GLY ASN SER SEQRES 5 O 107 GLN GLU SER VAL THR GLU GLN ASP SER LYS ASP SER THR SEQRES 6 O 107 TYR SER LEU SER SER THR LEU THR LEU SER LYS ALA ASP SEQRES 7 O 107 TYR GLU LYS HIS LYS VAL TYR ALA CYS GLU VAL THR HIS SEQRES 8 O 107 GLN GLY LEU SER SER PRO VAL THR LYS SER PHE ASN ARG SEQRES 9 O 107 GLY GLU CYS ATOM 1 CA ARG O 108 -11.093-116.828 -88.278 1.00 24.49 ATOM 2 CA THR O 109 -14.657-116.201 -86.988 1.00 29.53 ATOM 3 CA VAL O 110 -17.441-118.790 -87.511 1.00 29.75 ATOM 4 CA ALA O 111 -19.358-118.503 -90.721 1.00 23.83 ATOM 5 CA ALA O 112 -22.537-120.471 -91.254 1.00 21.37 ATOM 6 CA PRO O 113 -22.934-122.247 -94.554 1.00 22.37 ATOM 7 CA SER O 114 -25.304-121.495 -97.427 1.00 26.25 ATOM 8 CA VAL O 115 -26.963-124.837 -98.269 1.00 23.61 ATOM 9 CA PHE O 116 -28.177-125.918-101.701 1.00 24.26 ATOM 10 CA ILE O 117 -29.614-129.225-102.942 1.00 27.56 ATOM 11 CA PHE O 118 -29.743-130.408-106.574 1.00 34.05 ATOM 12 CA PRO O 119 -31.930-133.215-108.052 1.00 42.24 ATOM 13 CA PRO O 120 -30.561-135.771-110.655 1.00 36.96 ATOM 14 CA SER O 121 -30.565-134.357-114.165 1.00 39.63 ATOM 15 CA ASP O 122 -32.731-135.943-116.841 1.00 49.87 ATOM 16 CA GLU O 123 -30.013-137.396-118.980 1.00 43.74 ATOM 17 CA GLN O 124 -28.440-138.825-115.897 1.00 38.32 ATOM 18 CA LEU O 125 -31.624-140.824-115.032 1.00 43.28 ATOM 19 CA LYS O 126 -31.498-141.951-118.730 1.00 49.04 ATOM 20 CA SER O 127 -28.278-143.918-117.833 1.00 49.80 ATOM 21 CA GLY O 128 -30.048-145.738-115.001 1.00 47.11 ATOM 22 CA THR O 129 -28.307-143.736-112.095 1.00 43.85 ATOM 23 CA ALA O 130 -29.243-140.773-109.967 1.00 34.62 ATOM 24 CA SER O 131 -26.798-138.508-108.098 1.00 27.40 ATOM 25 CA VAL O 132 -28.304-136.024-105.633 1.00 24.83 ATOM 26 CA VAL O 133 -25.899-133.226-104.506 1.00 21.58 ATOM 27 CA CYS O 134 -26.079-131.086-101.363 1.00 19.24 ATOM 28 CA LEU O 135 -23.770-128.017-101.278 1.00 20.22 ATOM 29 CA LEU O 136 -22.640-126.208 -98.137 1.00 20.07 ATOM 30 CA ASN O 137 -20.959-123.045 -99.384 1.00 21.10 ATOM 31 CA ASN O 138 -18.485-120.864 -97.566 1.00 21.31 ATOM 32 CA PHE O 139 -18.214-121.750 -93.942 1.00 24.82 ATOM 33 CA TYR O 140 -15.755-121.728 -91.045 1.00 24.60 ATOM 34 CA PRO O 141 -14.675-123.961 -89.036 1.00 24.13 ATOM 35 CA ARG O 142 -14.409-126.973 -91.390 1.00 29.02 ATOM 36 CA GLU O 143 -16.400-129.401 -89.220 1.00 38.03 ATOM 37 CA ALA O 144 -20.024-129.862 -90.376 1.00 31.79 ATOM 38 CA LYS O 145 -22.380-132.884 -90.561 1.00 33.25 ATOM 39 CA VAL O 146 -24.598-133.722 -93.586 1.00 33.79 ATOM 40 CA GLN O 147 -27.379-136.264 -93.126 1.00 37.56 ATOM 41 CA TRP O 148 -29.498-137.581 -95.973 1.00 33.14 ATOM 42 CA LYS O 149 -33.084-138.639 -95.364 1.00 33.87 ATOM 43 CA VAL O 150 -35.196-140.170 -98.166 1.00 38.45 ATOM 44 CA ASP O 151 -38.915-140.499 -97.229 1.00 52.78 ATOM 45 CA ASN O 152 -38.360-138.525 -94.083 1.00 62.57 ATOM 46 CA ALA O 153 -36.279-140.221 -91.332 1.00 68.87 ATOM 47 CA LEU O 154 -35.230-143.129 -93.564 1.00 64.52 ATOM 48 CA GLN O 155 -31.878-141.520 -93.300 1.00 56.73 ATOM 49 CA SER O 156 -29.178-143.180 -95.281 1.00 51.84 ATOM 50 CA GLY O 157 -25.483-144.397 -95.331 1.00 52.14 ATOM 51 CA ASN O 158 -24.505-144.346 -99.189 1.00 46.46 ATOM 52 CA SER O 159 -23.014-140.839 -99.746 1.00 38.82 ATOM 53 CA GLN O 160 -19.541-139.423-100.420 1.00 35.88 ATOM 54 CA GLU O 161 -18.131-136.002 -99.439 1.00 30.57 ATOM 55 CA SER O 162 -15.552-133.572-100.807 1.00 24.52 ATOM 56 CA VAL O 163 -14.251-130.415 -99.051 1.00 21.28 ATOM 57 CA THR O 164 -12.261-127.738-100.794 1.00 26.66 ATOM 58 CA GLU O 165 -9.001-126.281 -99.289 1.00 29.01 ATOM 59 CA GLN O 166 -9.141-122.932 -97.440 1.00 23.36 ATOM 60 CA ASP O 167 -9.897-119.964 -99.642 1.00 23.58 ATOM 61 CA SER O 168 -7.015-117.464 -99.749 1.00 28.49 ATOM 62 CA LYS O 169 -9.398-114.524 -99.707 1.00 35.63 ATOM 63 CA ASP O 170 -11.902-115.258 -96.894 1.00 28.71 ATOM 64 CA SER O 171 -10.559-118.430 -95.201 1.00 22.47 ATOM 65 CA THR O 172 -13.667-120.574 -95.704 1.00 21.14 ATOM 66 CA TYR O 173 -14.333-124.114 -96.925 1.00 22.96 ATOM 67 CA SER O 174 -17.128-125.401 -99.128 1.00 20.50 ATOM 68 CA LEU O 175 -18.347-129.035 -99.112 1.00 18.39 ATOM 69 CA SER O 176 -20.419-131.370-101.342 1.00 20.18 ATOM 70 CA SER O 177 -22.186-134.535-100.406 1.00 22.83 ATOM 71 CA THR O 178 -23.296-136.770-103.283 1.00 25.67 ATOM 72 CA LEU O 179 -25.923-139.388-102.627 1.00 31.29 ATOM 73 CA THR O 180 -25.964-141.994-105.395 1.00 36.96 ATOM 74 CA LEU O 181 -28.775-144.426-106.003 1.00 41.68 ATOM 75 CA SER O 182 -30.032-146.329-109.040 1.00 42.32 ATOM 76 CA LYS O 183 -32.857-144.859-111.281 1.00 44.83 ATOM 77 CA ALA O 184 -35.207-147.533-109.807 1.00 49.35 ATOM 78 CA ASP O 185 -34.261-146.703-106.209 1.00 55.55 ATOM 79 CA TYR O 186 -34.779-143.022-106.816 1.00 51.76 ATOM 80 CA GLU O 187 -38.141-143.784-108.583 1.00 55.70 ATOM 81 CA LYS O 188 -39.633-145.195-105.478 1.00 52.94 ATOM 82 CA HIS O 189 -39.163-142.437-102.973 1.00 55.05 ATOM 83 CA LYS O 190 -40.442-138.831-103.105 1.00 52.83 ATOM 84 CA VAL O 191 -38.966-136.545-100.344 1.00 47.03 ATOM 85 CA TYR O 192 -35.177-136.215-100.658 1.00 38.28 ATOM 86 CA ALA O 193 -33.541-134.083 -97.963 1.00 34.05 ATOM 87 CA CYS O 194 -30.144-132.807 -96.839 1.00 33.19 ATOM 88 CA GLU O 195 -29.887-131.907 -93.114 1.00 34.51 ATOM 89 CA VAL O 196 -26.915-129.785 -92.020 1.00 28.87 ATOM 90 CA THR O 197 -25.323-129.233 -88.641 1.00 27.94 ATOM 91 CA HIS O 198 -22.554-126.673 -88.164 1.00 28.54 ATOM 92 CA GLN O 199 -21.571-124.267 -85.335 1.00 33.17 ATOM 93 CA GLY O 200 -22.700-121.024 -87.057 1.00 27.71 ATOM 94 CA LEU O 201 -26.306-122.165 -87.539 1.00 25.11 ATOM 95 CA SER O 202 -28.834-121.799 -84.676 1.00 34.19 ATOM 96 CA SER O 203 -30.788-124.863 -85.787 1.00 35.61 ATOM 97 CA PRO O 204 -30.012-127.820 -88.159 1.00 33.06 ATOM 98 CA VAL O 205 -30.903-126.770 -91.713 1.00 34.47 ATOM 99 CA THR O 206 -32.870-128.942 -94.175 1.00 35.46 ATOM 100 CA LYS O 207 -33.141-128.511 -97.939 1.00 36.49 ATOM 101 CA SER O 208 -35.599-130.946 -99.499 1.00 38.05 ATOM 102 CA PHE O 209 -37.295-131.526-102.811 1.00 41.72 ATOM 103 CA ASN O 210 -40.083-133.712-104.081 1.00 54.97 ATOM 104 CA ARG O 211 -39.409-136.235-106.878 1.00 61.26 ATOM 105 CA GLY O 212 -41.514-134.611-109.632 1.00 79.44 ATOM 106 CA GLU O 213 -39.992-131.034-109.843 1.00 93.23 ATOM 107 CA CYS O 214 -41.276-128.196-112.148 1.00101.74 TER