HEADER IMMUNE SYSTEM 31-DEC-69 6IQH TITLE X-ray crystal structure of covalent-bonded complex of Fc and peptide COMPND MOL_ID: 1; COMPND 2 MOLECULE: Immunoglobulin gamma-1 heavy chain; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.00 ANGSTORMS DBREF 6IQH A 236 445 UNP P0DOX5 IGG1_HUMAN 238 447 SEQRES 1 A 103 GLY PRO SER VAL PHE LEU PHE PRO PRO LYS PRO LYS ASP SEQRES 2 A 103 THR LEU MET ILE SER ARG THR PRO GLU VAL THR CYS VAL SEQRES 3 A 103 VAL VAL ASP VAL SER HIS GLU ASP PRO GLU VAL LYS PHE SEQRES 4 A 103 ASN TRP TYR VAL ASP GLY VAL GLU VAL HIS ASN ALA LYS SEQRES 5 A 103 THR LYS PRO ARG GLU GLU GLN TYR ASN SER THR TYR ARG SEQRES 6 A 103 VAL VAL SER VAL LEU THR VAL LEU HIS GLN ASP TRP LEU SEQRES 7 A 103 ASN GLY LYS GLU TYR LYS CYS LYS VAL SER ASN LYS ALA SEQRES 8 A 103 LEU PRO ALA PRO ILE GLU LYS THR ILE SER LYS ALA ATOM 1 N GLY B 237 -15.760 21.827 53.391 1.00 42.55 ATOM 2 CA GLY B 237 -15.700 23.281 53.456 1.00 47.49 ATOM 3 C GLY B 237 -15.681 23.776 54.891 1.00 44.84 ATOM 4 O GLY B 237 -14.781 23.431 55.658 1.00 44.20 ATOM 5 N PRO B 238 -16.674 24.597 55.267 1.00 45.16 ATOM 6 CA PRO B 238 -16.824 24.958 56.686 1.00 47.57 ATOM 7 C PRO B 238 -16.914 23.732 57.610 1.00 47.90 ATOM 8 O PRO B 238 -17.276 22.636 57.153 1.00 49.02 ATOM 9 CB PRO B 238 -18.134 25.762 56.707 1.00 41.84 ATOM 10 CG PRO B 238 -18.214 26.374 55.334 1.00 41.78 ATOM 11 CD PRO B 238 -17.582 25.367 54.392 1.00 43.47 ATOM 12 N SER B 239 -16.582 23.935 58.885 1.00 42.95 ATOM 13 CA SER B 239 -16.646 22.897 59.916 1.00 43.72 ATOM 14 C SER B 239 -17.335 23.491 61.135 1.00 44.38 ATOM 15 O SER B 239 -16.895 24.537 61.617 1.00 45.55 ATOM 16 CB SER B 239 -15.244 22.414 60.283 1.00 37.88 ATOM 17 OG SER B 239 -14.387 22.454 59.157 1.00 41.79 ATOM 18 N VAL B 240 -18.404 22.886 61.649 1.00 34.34 ATOM 19 CA VAL B 240 -19.099 23.603 62.719 1.00 38.29 ATOM 20 C VAL B 240 -18.838 22.949 64.063 1.00 37.33 ATOM 21 O VAL B 240 -18.472 21.770 64.114 1.00 33.53 ATOM 22 CB VAL B 240 -20.641 23.740 62.440 1.00 39.34 ATOM 23 CG1 VAL B 240 -20.958 23.360 61.011 1.00 38.77 ATOM 24 CG2 VAL B 240 -21.494 22.943 63.439 1.00 45.00 ATOM 25 N PHE B 241 -18.987 23.739 65.135 1.00 36.77 ATOM 26 CA PHE B 241 -18.837 23.250 66.505 1.00 39.95 ATOM 27 C PHE B 241 -19.887 23.779 67.461 1.00 44.41 ATOM 28 O PHE B 241 -19.992 24.990 67.685 1.00 42.89 ATOM 29 CB PHE B 241 -17.464 23.595 67.035 1.00 34.14 ATOM 30 CG PHE B 241 -16.386 22.957 66.269 1.00 36.23 ATOM 31 CD1 PHE B 241 -15.816 23.601 65.190 1.00 34.82 ATOM 32 CD2 PHE B 241 -15.974 21.685 66.590 1.00 39.92 ATOM 33 CE1 PHE B 241 -14.836 22.998 64.462 1.00 37.92 ATOM 34 CE2 PHE B 241 -15.000 21.073 65.867 1.00 44.52 ATOM 35 CZ PHE B 241 -14.426 21.730 64.797 1.00 44.30 ATOM 36 N LEU B 242 -20.643 22.851 68.037 1.00 43.92 ATOM 37 CA LEU B 242 -21.678 23.184 68.996 1.00 39.56 ATOM 38 C LEU B 242 -21.137 23.169 70.443 1.00 44.83 ATOM 39 O LEU B 242 -20.419 22.241 70.831 1.00 57.50 ATOM 40 CB LEU B 242 -22.836 22.217 68.824 1.00 36.19 ATOM 41 CG LEU B 242 -24.161 22.727 69.373 1.00 41.53 ATOM 42 CD1 LEU B 242 -24.368 24.180 68.967 1.00 41.99 ATOM 43 CD2 LEU B 242 -25.310 21.854 68.882 1.00 41.55 ATOM 44 N PHE B 243 -21.462 24.198 71.230 1.00 38.53 ATOM 45 CA PHE B 243 -20.878 24.372 72.564 1.00 35.61 ATOM 46 C PHE B 243 -21.902 24.549 73.646 1.00 35.90 ATOM 47 O PHE B 243 -22.832 25.331 73.488 1.00 40.61 ATOM 48 CB PHE B 243 -19.960 25.594 72.613 1.00 40.70 ATOM 49 CG PHE B 243 -18.676 25.414 71.886 1.00 41.53 ATOM 50 CD1 PHE B 243 -17.711 24.559 72.372 1.00 38.03 ATOM 51 CD2 PHE B 243 -18.430 26.101 70.709 1.00 44.99 ATOM 52 CE1 PHE B 243 -16.533 24.384 71.700 1.00 40.26 ATOM 53 CE2 PHE B 243 -17.248 25.930 70.030 1.00 41.19 ATOM 54 CZ PHE B 243 -16.298 25.069 70.529 1.00 42.85 ATOM 55 N PRO B 244 -21.706 23.869 74.781 1.00 37.28 ATOM 56 CA PRO B 244 -22.617 24.047 75.914 1.00 38.26 ATOM 57 C PRO B 244 -22.412 25.410 76.549 1.00 37.76 ATOM 58 O PRO B 244 -21.527 26.157 76.147 1.00 40.95 ATOM 59 CB PRO B 244 -22.234 22.905 76.868 1.00 33.09 ATOM 60 CG PRO B 244 -20.869 22.513 76.487 1.00 28.60 ATOM 61 CD PRO B 244 -20.677 22.849 75.039 1.00 35.94 ATOM 62 N PRO B 245 -23.253 25.757 77.508 1.00 35.02 ATOM 63 CA PRO B 245 -22.990 27.013 78.205 1.00 43.76 ATOM 64 C PRO B 245 -22.231 26.752 79.493 1.00 47.29 ATOM 65 O PRO B 245 -22.223 25.601 79.921 1.00 47.35 ATOM 66 CB PRO B 245 -24.386 27.552 78.477 1.00 49.67 ATOM 67 CG PRO B 245 -25.231 26.305 78.609 1.00 42.09 ATOM 68 CD PRO B 245 -24.611 25.247 77.744 1.00 35.62 ATOM 69 N LYS B 246 -21.619 27.776 80.094 1.00 53.97 ATOM 70 CA LYS B 246 -20.836 27.575 81.312 1.00 48.50 ATOM 71 C LYS B 246 -21.742 27.047 82.413 1.00 46.32 ATOM 72 O LYS B 246 -22.868 27.501 82.593 1.00 48.36 ATOM 73 CB LYS B 246 -20.130 28.867 81.772 1.00 51.53 ATOM 74 CG LYS B 246 -18.832 28.603 82.598 1.00 61.20 ATOM 75 CD LYS B 246 -18.536 29.661 83.677 1.00 63.69 ATOM 76 CE LYS B 246 -18.166 31.029 83.066 1.00 63.98 ATOM 77 NZ LYS B 246 -18.359 32.176 84.014 1.00 59.55 ATOM 78 N PRO B 247 -21.247 26.062 83.152 1.00 49.12 ATOM 79 CA PRO B 247 -21.982 25.534 84.304 1.00 49.45 ATOM 80 C PRO B 247 -22.199 26.548 85.437 1.00 50.67 ATOM 81 O PRO B 247 -22.725 26.165 86.474 1.00 56.79 ATOM 82 CB PRO B 247 -21.094 24.375 84.778 1.00 46.22 ATOM 83 CG PRO B 247 -19.746 24.607 84.127 1.00 45.31 ATOM 84 CD PRO B 247 -20.037 25.281 82.841 1.00 44.97 ATOM 85 N LYS B 248 -21.782 27.797 85.270 1.00 54.39 ATOM 86 CA LYS B 248 -22.149 28.829 86.229 1.00 50.93 ATOM 87 C LYS B 248 -23.418 29.483 85.733 1.00 47.69 ATOM 88 O LYS B 248 -24.215 29.995 86.513 1.00 46.48 ATOM 89 CB LYS B 248 -21.039 29.864 86.402 1.00 44.72 ATOM 90 CG LYS B 248 -20.365 29.760 87.741 1.00 51.08 ATOM 91 CD LYS B 248 -19.505 30.968 88.027 1.00 61.96 ATOM 92 CE LYS B 248 -19.817 31.519 89.408 1.00 59.98 ATOM 93 NZ LYS B 248 -19.461 32.970 89.726 1.00 68.97 ATOM 94 N ASP B 249 -23.589 29.442 84.415 1.00 47.62 ATOM 95 CA ASP B 249 -24.665 30.142 83.736 1.00 41.71 ATOM 96 C ASP B 249 -25.949 29.334 83.754 1.00 48.34 ATOM 97 O ASP B 249 -27.054 29.899 83.725 1.00 48.79 ATOM 98 CB ASP B 249 -24.256 30.467 82.304 1.00 42.07 ATOM 99 CG ASP B 249 -23.142 31.497 82.247 1.00 52.66 ATOM 100 OD1 ASP B 249 -22.782 32.030 83.322 1.00 55.52 ATOM 101 OD2 ASP B 249 -22.634 31.792 81.139 1.00 53.57 ATOM 102 N THR B 250 -25.807 28.013 83.827 1.00 48.69 ATOM 103 CA THR B 250 -26.969 27.132 83.873 1.00 44.00 ATOM 104 C THR B 250 -27.490 26.942 85.293 1.00 40.91 ATOM 105 O THR B 250 -28.661 26.596 85.483 1.00 34.00 ATOM 106 CB THR B 250 -26.652 25.766 83.254 1.00 42.26 ATOM 107 OG1 THR B 250 -25.325 25.356 83.614 1.00 45.07 ATOM 108 CG2 THR B 250 -26.717 25.883 81.761 1.00 48.12 ATOM 109 N LEU B 251 -26.629 27.207 86.277 1.00 36.79 ATOM 110 CA LEU B 251 -26.934 26.890 87.662 1.00 34.21 ATOM 111 C LEU B 251 -27.273 28.114 88.437 1.00 34.31 ATOM 112 O LEU B 251 -27.632 28.034 89.606 1.00 37.39 ATOM 113 CB LEU B 251 -25.760 26.201 88.340 1.00 38.04 ATOM 114 CG LEU B 251 -25.332 24.925 87.643 1.00 39.24 ATOM 115 CD1 LEU B 251 -24.042 24.397 88.215 1.00 35.58 ATOM 116 CD2 LEU B 251 -26.457 23.930 87.806 1.00 43.96 ATOM 117 N MET B 252 -27.127 29.264 87.807 1.00 36.90 ATOM 118 CA MET B 252 -27.426 30.494 88.516 1.00 43.08 ATOM 119 C MET B 252 -28.567 31.227 87.824 1.00 44.59 ATOM 120 O MET B 252 -28.432 31.652 86.672 1.00 48.54 ATOM 121 CB MET B 252 -26.188 31.394 88.613 1.00 46.62 ATOM 122 CG MET B 252 -24.994 30.829 89.407 1.00 45.74 ATOM 123 SD MET B 252 -23.767 32.133 89.615 1.00 44.49 ATOM 124 CE MET B 252 -24.553 33.089 90.911 1.00 40.44 ATOM 125 N ILE B 253 -29.685 31.370 88.532 1.00 39.44 ATOM 126 CA ILE B 253 -30.846 32.052 88.003 1.00 33.62 ATOM 127 C ILE B 253 -30.570 33.493 87.681 1.00 35.13 ATOM 128 O ILE B 253 -31.375 34.114 86.988 1.00 34.90 ATOM 129 CB ILE B 253 -31.999 32.044 88.975 1.00 40.53 ATOM 130 CG1 ILE B 253 -33.295 32.341 88.224 1.00 44.13 ATOM 131 CG2 ILE B 253 -31.758 33.077 90.058 1.00 36.55 ATOM 132 CD1 ILE B 253 -33.556 31.384 87.087 1.00 33.30 ATOM 133 N SER B 254 -29.468 34.031 88.220 1.00 38.59 ATOM 134 CA SER B 254 -29.017 35.382 87.881 1.00 33.84 ATOM 135 C SER B 254 -28.470 35.354 86.486 1.00 33.82 ATOM 136 O SER B 254 -28.709 36.273 85.724 1.00 39.64 ATOM 137 CB SER B 254 -27.923 35.927 88.821 1.00 37.16 ATOM 138 OG SER B 254 -28.045 35.485 90.165 1.00 40.81 ATOM 139 N ARG B 255 -27.724 34.303 86.150 1.00 35.37 ATOM 140 CA ARG B 255 -26.959 34.301 84.908 1.00 40.21 ATOM 141 C ARG B 255 -27.882 33.982 83.741 1.00 39.40 ATOM 142 O ARG B 255 -29.094 33.888 83.928 1.00 40.40 ATOM 143 CB ARG B 255 -25.800 33.311 84.993 1.00 45.23 ATOM 144 CG ARG B 255 -24.890 33.521 86.193 1.00 42.89 ATOM 145 CD ARG B 255 -23.940 34.661 85.987 1.00 41.62 ATOM 146 NE ARG B 255 -22.573 34.175 85.867 1.00 48.46 ATOM 147 CZ ARG B 255 -21.625 34.758 85.140 1.00 55.05 ATOM 148 NH1 ARG B 255 -21.884 35.870 84.445 1.00 58.46 ATOM 149 NH2 ARG B 255 -20.416 34.220 85.103 1.00 50.93 ATOM 150 N THR B 256 -27.338 33.840 82.536 1.00 40.70 ATOM 151 CA THR B 256 -28.187 33.477 81.400 1.00 43.25 ATOM 152 C THR B 256 -27.463 32.643 80.338 1.00 44.30 ATOM 153 O THR B 256 -26.845 33.203 79.424 1.00 44.72 ATOM 154 CB THR B 256 -28.787 34.726 80.730 1.00 42.92 ATOM 155 OG1 THR B 256 -29.372 35.561 81.737 1.00 39.53 ATOM 156 CG2 THR B 256 -29.848 34.332 79.688 1.00 39.82 ATOM 157 N PRO B 257 -27.582 31.301 80.449 1.00 40.44 ATOM 158 CA PRO B 257 -27.006 30.206 79.648 1.00 41.43 ATOM 159 C PRO B 257 -27.236 30.313 78.150 1.00 38.60 ATOM 160 O PRO B 257 -28.318 30.699 77.737 1.00 49.49 ATOM 161 CB PRO B 257 -27.729 28.967 80.188 1.00 41.52 ATOM 162 CG PRO B 257 -28.950 29.504 80.881 1.00 40.89 ATOM 163 CD PRO B 257 -28.471 30.763 81.491 1.00 39.47 ATOM 164 N GLU B 258 -26.243 29.957 77.346 1.00 35.39 ATOM 165 CA GLU B 258 -26.363 30.065 75.897 1.00 35.84 ATOM 166 C GLU B 258 -25.676 28.899 75.208 1.00 37.12 ATOM 167 O GLU B 258 -24.567 28.488 75.567 1.00 42.88 ATOM 168 CB GLU B 258 -25.758 31.383 75.385 1.00 43.87 ATOM 169 CG GLU B 258 -26.285 32.665 76.068 1.00 57.75 ATOM 170 CD GLU B 258 -25.477 33.945 75.742 1.00 69.62 ATOM 171 OE1 GLU B 258 -24.243 33.853 75.490 1.00 60.05 ATOM 172 OE2 GLU B 258 -26.093 35.048 75.748 1.00 77.79 ATOM 173 N VAL B 259 -26.350 28.356 74.213 1.00 38.41 ATOM 174 CA VAL B 259 -25.730 27.410 73.311 1.00 37.98 ATOM 175 C VAL B 259 -25.034 28.242 72.248 1.00 43.67 ATOM 176 O VAL B 259 -25.570 29.257 71.804 1.00 46.44 ATOM 177 CB VAL B 259 -26.757 26.461 72.682 1.00 37.62 ATOM 178 CG1 VAL B 259 -26.115 25.645 71.623 1.00 41.04 ATOM 179 CG2 VAL B 259 -27.348 25.558 73.735 1.00 39.61 ATOM 180 N THR B 260 -23.832 27.849 71.850 1.00 44.14 ATOM 181 CA THR B 260 -23.091 28.643 70.876 1.00 41.95 ATOM 182 C THR B 260 -22.661 27.773 69.694 1.00 45.04 ATOM 183 O THR B 260 -21.942 26.776 69.856 1.00 45.11 ATOM 184 CB THR B 260 -21.857 29.307 71.521 1.00 42.06 ATOM 185 OG1 THR B 260 -22.225 29.857 72.790 1.00 42.71 ATOM 186 CG2 THR B 260 -21.301 30.407 70.631 1.00 40.56 ATOM 187 N CYS B 261 -23.111 28.146 68.503 1.00 42.48 ATOM 188 CA CYS B 261 -22.840 27.342 67.326 1.00 38.45 ATOM 189 C CYS B 261 -21.865 28.083 66.446 1.00 37.80 ATOM 190 O CYS B 261 -22.215 29.069 65.782 1.00 34.46 ATOM 191 CB CYS B 261 -24.129 27.020 66.580 1.00 39.22 ATOM 192 SG CYS B 261 -23.958 26.005 65.111 1.00 40.43 ATOM 193 N VAL B 262 -20.630 27.585 66.468 1.00 42.74 ATOM 194 CA VAL B 262 -19.500 28.183 65.769 1.00 35.60 ATOM 195 C VAL B 262 -19.184 27.521 64.436 1.00 37.23 ATOM 196 O VAL B 262 -18.839 26.350 64.382 1.00 42.54 ATOM 197 CB VAL B 262 -18.270 28.111 66.614 1.00 28.34 ATOM 198 CG1 VAL B 262 -17.126 28.748 65.880 1.00 31.69 ATOM 199 CG2 VAL B 262 -18.538 28.778 67.932 1.00 31.82 ATOM 200 N VAL B 263 -19.314 28.280 63.362 1.00 37.47 ATOM 201 CA VAL B 263 -18.960 27.820 62.037 1.00 34.96 ATOM 202 C VAL B 263 -17.633 28.444 61.648 1.00 41.87 ATOM 203 O VAL B 263 -17.558 29.641 61.350 1.00 41.02 ATOM 204 CB VAL B 263 -20.015 28.216 61.023 1.00 33.87 ATOM 205 CG1 VAL B 263 -19.689 27.636 59.669 1.00 35.90 ATOM 206 CG2 VAL B 263 -21.357 27.782 61.503 1.00 35.86 ATOM 207 N VAL B 264 -16.571 27.655 61.663 1.00 48.62 ATOM 208 CA VAL B 264 -15.258 28.226 61.385 1.00 48.55 ATOM 209 C VAL B 264 -14.801 27.773 60.003 1.00 43.87 ATOM 210 O VAL B 264 -15.476 26.989 59.336 1.00 42.84 ATOM 211 CB VAL B 264 -14.235 27.837 62.478 1.00 42.80 ATOM 212 CG1 VAL B 264 -13.710 26.451 62.230 1.00 45.13 ATOM 213 CG2 VAL B 264 -13.105 28.855 62.558 1.00 45.47 ATOM 214 N ASP B 265 -13.675 28.290 59.545 1.00 46.88 ATOM 215 CA ASP B 265 -13.237 27.936 58.217 1.00 48.42 ATOM 216 C ASP B 265 -14.262 28.423 57.184 1.00 45.40 ATOM 217 O ASP B 265 -14.380 27.830 56.121 1.00 45.03 ATOM 218 CB ASP B 265 -13.049 26.410 58.104 1.00 55.32 ATOM 219 CG ASP B 265 -11.643 25.930 58.543 1.00 68.60 ATOM 220 OD1 ASP B 265 -11.424 25.635 59.753 1.00 68.72 ATOM 221 OD2 ASP B 265 -10.760 25.813 57.660 1.00 73.44 ATOM 222 N VAL B 266 -15.014 29.488 57.469 1.00 47.54 ATOM 223 CA VAL B 266 -16.020 29.929 56.491 1.00 50.47 ATOM 224 C VAL B 266 -15.303 30.571 55.318 1.00 45.07 ATOM 225 O VAL B 266 -14.347 31.301 55.506 1.00 45.45 ATOM 226 CB VAL B 266 -17.072 30.922 57.070 1.00 45.86 ATOM 227 CG1 VAL B 266 -18.139 31.277 56.002 1.00 37.73 ATOM 228 CG2 VAL B 266 -17.728 30.340 58.309 1.00 40.17 ATOM 229 N SER B 267 -15.771 30.273 54.111 1.00 51.28 ATOM 230 CA SER B 267 -15.152 30.747 52.888 1.00 46.81 ATOM 231 C SER B 267 -15.060 32.267 52.870 1.00 54.23 ATOM 232 O SER B 267 -15.730 32.930 53.649 1.00 57.98 ATOM 233 CB SER B 267 -15.950 30.239 51.692 1.00 46.82 ATOM 234 OG SER B 267 -15.815 31.117 50.600 1.00 45.38 ATOM 235 N HIS B 268 -14.218 32.822 52.003 1.00 60.80 ATOM 236 CA HIS B 268 -14.222 34.271 51.750 1.00 62.40 ATOM 237 C HIS B 268 -15.220 34.622 50.616 1.00 59.09 ATOM 238 O HIS B 268 -16.071 35.509 50.759 1.00 49.70 ATOM 239 CB HIS B 268 -12.809 34.748 51.393 1.00 61.20 ATOM 240 CG HIS B 268 -12.151 35.576 52.456 1.00 61.68 ATOM 241 ND1 HIS B 268 -11.857 35.087 53.713 1.00 67.89 ATOM 242 CD2 HIS B 268 -11.702 36.854 52.439 1.00 56.35 ATOM 243 CE1 HIS B 268 -11.267 36.031 54.427 1.00 56.34 ATOM 244 NE2 HIS B 268 -11.160 37.112 53.678 1.00 54.01 ATOM 245 N GLU B 269 -15.0