HEADER IMMUNE SYSTEM 31-DEC-69 2XRC TITLE Human complement factor I COMPND MOL_ID: 1; COMPND 2 MOLECULE: HUMAN COMPLEMENT FACTOR I; COMPND 3 CHAIN: A, B, C, D; COMPND 4 EC: 3.4.21.45; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.69 ANGSTORMS DBREF 2XRC D 1 565 UNP P05156 CFAI_HUMAN 19 583 MODRES 2XRC ASN D 52 ASN GLYCOSYLATION SITE MODRES 2XRC ASN D 85 ASN GLYCOSYLATION SITE MODRES 2XRC ASN D 446 ASN GLYCOSYLATION SITE MODRES 2XRC ASN D 476 ASN GLYCOSYLATION SITE MODRES 2XRC ASN D 518 ASN GLYCOSYLATION SITE SEQRES 1 D 36 ASP GLN SER ASP GLU LEU CYS CYS LYS ALA CYS GLN GLY SEQRES 2 D 36 LYS GLY PHE HIS CYS LYS SER GLY VAL CYS ILE PRO SER SEQRES 3 D 36 GLN TYR GLN CYS ASN GLY GLU VAL ASP CYS ATOM 1 N ASP D 231 14.454 30.568 -4.157 1.00 34.31 ATOM 2 CA ASP D 231 13.958 29.235 -4.482 1.00 33.00 ATOM 3 C ASP D 231 13.763 28.337 -3.248 1.00 31.82 ATOM 4 O ASP D 231 13.590 27.125 -3.388 1.00 30.73 ATOM 5 CB ASP D 231 14.934 28.564 -5.455 1.00 33.69 ATOM 6 CG ASP D 231 16.312 28.317 -4.843 1.00 33.99 ATOM 7 OD1 ASP D 231 16.532 28.655 -3.661 1.00 31.71 ATOM 8 OD2 ASP D 231 17.187 27.776 -5.553 1.00 36.50 ATOM 9 N GLN D 232 13.823 28.931 -2.054 1.00 30.64 ATOM 10 CA GLN D 232 13.666 28.217 -0.768 1.00 30.90 ATOM 11 C GLN D 232 14.807 27.268 -0.377 1.00 31.49 ATOM 12 O GLN D 232 14.722 26.615 0.663 1.00 31.82 ATOM 13 CB GLN D 232 12.330 27.452 -0.705 1.00 30.21 ATOM 14 CG GLN D 232 11.221 28.166 0.033 1.00 30.00 ATOM 15 CD GLN D 232 10.047 27.248 0.318 1.00 30.58 ATOM 16 OE1 GLN D 232 9.597 26.506 -0.560 1.00 29.06 ATOM 17 NE2 GLN D 232 9.543 27.290 1.552 1.00 29.98 ATOM 18 N SER D 233 15.870 27.200 -1.175 1.00 32.60 ATOM 19 CA SER D 233 16.982 26.284 -0.901 1.00 35.03 ATOM 20 C SER D 233 17.447 26.352 0.555 1.00 39.85 ATOM 21 O SER D 233 17.538 25.334 1.240 1.00 42.43 ATOM 22 CB SER D 233 18.174 26.603 -1.808 1.00 34.90 ATOM 23 OG SER D 233 17.851 26.427 -3.176 1.00 34.38 ATOM 24 N ASP D 234 17.731 27.565 1.016 1.00 44.14 ATOM 25 CA ASP D 234 18.327 27.787 2.341 1.00 46.74 ATOM 26 C ASP D 234 17.416 27.475 3.532 1.00 50.46 ATOM 27 O ASP D 234 17.900 27.353 4.661 1.00 52.10 ATOM 28 CB ASP D 234 18.842 29.228 2.460 1.00 47.53 ATOM 29 CG ASP D 234 17.758 30.269 2.214 1.00 48.73 ATOM 30 OD1 ASP D 234 17.788 31.336 2.869 1.00 48.76 ATOM 31 OD2 ASP D 234 16.877 30.022 1.365 1.00 50.60 ATOM 32 N GLU D 235 16.114 27.350 3.287 1.00 52.74 ATOM 33 CA GLU D 235 15.139 27.119 4.357 1.00 53.07 ATOM 34 C GLU D 235 14.435 25.764 4.216 1.00 52.09 ATOM 35 O GLU D 235 13.241 25.643 4.503 1.00 51.69 ATOM 36 CB GLU D 235 14.110 28.252 4.367 1.00 55.21 ATOM 37 CG GLU D 235 14.714 29.643 4.550 1.00 57.61 ATOM 38 CD GLU D 235 15.261 29.875 5.950 1.00 59.96 ATOM 39 OE1 GLU D 235 14.598 29.485 6.930 1.00 63.50 ATOM 40 OE2 GLU D 235 16.352 30.468 6.076 1.00 61.89 ATOM 41 N LEU D 236 15.180 24.749 3.780 1.00 50.90 ATOM 42 CA LEU D 236 14.628 23.402 3.583 1.00 51.20 ATOM 43 C LEU D 236 15.626 22.311 3.968 1.00 53.78 ATOM 44 O LEU D 236 15.642 21.236 3.366 1.00 54.04 ATOM 45 CB LEU D 236 14.197 23.209 2.123 1.00 49.02 ATOM 46 CG LEU D 236 13.052 24.076 1.599 1.00 46.41 ATOM 47 CD1 LEU D 236 12.940 23.915 0.094 1.00 44.48 ATOM 48 CD2 LEU D 236 11.740 23.728 2.286 1.00 45.49 ATOM 49 N CYS D 237 16.443 22.588 4.981 1.00 57.51 ATOM 50 CA CYS D 237 17.484 21.653 5.425 1.00 57.59 ATOM 51 C CYS D 237 18.010 22.024 6.812 1.00 58.34 ATOM 52 O CYS D 237 19.217 22.046 7.046 1.00 57.94 ATOM 53 CB CYS D 237 18.626 21.616 4.399 1.00 58.88 ATOM 54 SG CYS D 237 18.486 20.271 3.209 1.00 58.94 ATOM 55 N CYS D 238 17.085 22.278 7.733 1.00 58.14 ATOM 56 CA CYS D 238 17.406 22.879 9.025 1.00 58.01 ATOM 57 C CYS D 238 17.109 21.962 10.214 1.00 59.00 ATOM 58 O CYS D 238 15.996 21.460 10.357 1.00 61.03 ATOM 59 CB CYS D 238 16.609 24.173 9.187 1.00 58.55 ATOM 60 SG CYS D 238 16.896 25.387 7.884 1.00 58.68 ATOM 61 N LYS D 239 18.111 21.763 11.067 1.00 58.32 ATOM 62 CA LYS D 239 17.931 21.072 12.347 1.00 56.39 ATOM 63 C LYS D 239 17.183 21.961 13.344 1.00 54.91 ATOM 64 O LYS D 239 16.474 21.463 14.220 1.00 52.34 ATOM 65 CB LYS D 239 19.287 20.686 12.939 1.00 56.87 ATOM 66 CG LYS D 239 20.111 19.742 12.073 1.00 57.49 ATOM 67 CD LYS D 239 21.573 19.758 12.495 1.00 57.72 ATOM 68 CE LYS D 239 22.410 18.814 11.656 1.00 57.34 ATOM 69 NZ LYS D 239 23.782 18.676 12.208 1.00 59.04 ATOM 70 N ALA D 240 17.368 23.274 13.206 1.00 53.74 ATOM 71 CA ALA D 240 16.704 24.267 14.055 1.00 52.81 ATOM 72 C ALA D 240 16.716 25.642 13.384 1.00 53.56 ATOM 73 O ALA D 240 17.594 25.936 12.569 1.00 54.85 ATOM 74 CB ALA D 240 17.380 24.336 15.412 1.00 51.74 ATOM 75 N CYS D 241 15.746 26.482 13.735 1.00 54.09 ATOM 76 CA CYS D 241 15.592 27.791 13.098 1.00 55.44 ATOM 77 C CYS D 241 16.239 28.919 13.898 1.00 57.80 ATOM 78 O CYS D 241 16.384 28.836 15.119 1.00 59.92 ATOM 79 CB CYS D 241 14.113 28.105 12.860 1.00 55.28 ATOM 80 SG CYS D 241 13.253 26.913 11.789 1.00 53.95 ATOM 81 N GLN D 242 16.615 29.972 13.176 1.00 59.02 ATOM 82 CA GLN D 242 17.294 31.138 13.726 1.00 58.39 ATOM 83 C GLN D 242 16.301 32.292 13.814 1.00 60.26 ATOM 84 O GLN D 242 15.277 32.294 13.127 1.00 59.29 ATOM 85 CB GLN D 242 18.474 31.515 12.821 1.00 58.60 ATOM 86 CG GLN D 242 19.426 32.570 13.381 1.00 59.08 ATOM 87 CD GLN D 242 20.623 32.833 12.469 1.00 60.21 ATOM 88 OE1 GLN D 242 20.919 32.049 11.561 1.00 55.37 ATOM 89 NE2 GLN D 242 21.317 33.943 12.712 1.00 58.27 ATOM 90 N GLY D 243 16.605 33.267 14.667 1.00 60.94 ATOM 91 CA GLY D 243 15.746 34.433 14.852 1.00 60.07 ATOM 92 C GLY D 243 14.361 34.041 15.337 1.00 59.87 ATOM 93 O GLY D 243 14.222 33.233 16.259 1.00 57.34 ATOM 94 N LYS D 244 13.340 34.612 14.700 1.00 59.65 ATOM 95 CA LYS D 244 11.939 34.285 14.991 1.00 58.56 ATOM 96 C LYS D 244 11.378 33.362 13.902 1.00 55.04 ATOM 97 O LYS D 244 10.352 33.646 13.277 1.00 52.19 ATOM 98 CB LYS D 244 11.088 35.557 15.148 1.00 61.16 ATOM 99 CG LYS D 244 11.163 36.555 13.990 1.00 62.88 ATOM 100 CD LYS D 244 10.252 37.757 14.225 1.00 64.63 ATOM 101 CE LYS D 244 8.798 37.453 13.879 1.00 65.12 ATOM 102 NZ LYS D 244 8.580 37.330 12.407 1.00 64.23 ATOM 103 N GLY D 245 12.077 32.254 13.683 1.00 51.47 ATOM 104 CA GLY D 245 11.653 31.233 12.734 1.00 51.81 ATOM 105 C GLY D 245 11.205 29.995 13.482 1.00 50.29 ATOM 106 O GLY D 245 11.750 29.677 14.539 1.00 53.22 ATOM 107 N PHE D 246 10.207 29.305 12.936 1.00 47.96 ATOM 108 CA PHE D 246 9.639 28.114 13.565 1.00 46.29 ATOM 109 C PHE D 246 10.061 26.861 12.813 1.00 45.47 ATOM 110 O PHE D 246 9.858 26.752 11.603 1.00 44.93 ATOM 111 CB PHE D 246 8.113 28.206 13.598 1.00 47.44 ATOM 112 CG PHE D 246 7.451 27.078 14.342 1.00 48.62 ATOM 113 CD1 PHE D 246 7.730 26.856 15.687 1.00 50.06 ATOM 114 CD2 PHE D 246 6.532 26.251 13.708 1.00 49.59 ATOM 115 CE1 PHE D 246 7.111 25.822 16.384 1.00 50.90 ATOM 116 CE2 PHE D 246 5.911 25.213 14.397 1.00 50.23 ATOM 117 CZ PHE D 246 6.201 24.999 15.737 1.00 50.68 ATOM 118 N HIS D 247 10.647 25.920 13.545 1.00 44.04 ATOM 119 CA HIS D 247 11.103 24.652 12.986 1.00 42.68 ATOM 120 C HIS D 247 9.963 23.648 12.914 1.00 42.41 ATOM 121 O HIS D 247 9.370 23.304 13.941 1.00 42.09 ATOM 122 CB HIS D 247 12.231 24.085 13.852 1.00 42.53 ATOM 123 CG HIS D 247 12.808 22.802 13.342 1.00 41.24 ATOM 124 ND1 HIS D 247 12.462 21.573 13.863 1.00 42.08 ATOM 125 CD2 HIS D 247 13.720 22.556 12.373 1.00 40.96 ATOM 126 CE1 HIS D 247 13.134 20.625 13.233 1.00 41.17 ATOM 127 NE2 HIS D 247 13.903 21.195 12.324 1.00 41.28 ATOM 128 N CYS D 248 9.655 23.194 11.699 1.00 41.50 ATOM 129 CA CYS D 248 8.755 22.060 11.502 1.00 40.27 ATOM 130 C CYS D 248 9.559 20.777 11.680 1.00 39.70 ATOM 131 O CYS D 248 10.787 20.795 11.615 1.00 38.99 ATOM 132 CB CYS D 248 8.119 22.066 10.105 1.00 41.48 ATOM 133 SG CYS D 248 7.648 23.685 9.437 1.00 42.38 ATOM 134 N LYS D 249 8.862 19.663 11.879 1.00 41.09 ATOM 135 CA LYS D 249 9.508 18.350 12.022 1.00 41.30 ATOM 136 C LYS D 249 10.226 17.872 10.749 1.00 41.56 ATOM 137 O LYS D 249 11.109 17.024 10.822 1.00 44.64 ATOM 138 CB LYS D 249 8.476 17.301 12.449 1.00 41.20 ATOM 139 CG LYS D 249 7.891 17.538 13.836 1.00 41.79 ATOM 140 CD LYS D 249 6.484 16.966 13.977 1.00 41.30 ATOM 141 CE LYS D 249 5.927 17.214 15.375 1.00 41.28 ATOM 142 NZ LYS D 249 4.494 16.822 15.505 1.00 39.99 ATOM 143 N SER D 250 9.858 18.433 9.596 1.00 40.97 ATOM 144 CA SER D 250 10.370 17.989 8.289 1.00 39.93 ATOM 145 C SER D 250 11.777 18.475 7.908 1.00 41.03 ATOM 146 O SER D 250 12.243 18.212 6.793 1.00 39.90 ATOM 147 CB SER D 250 9.396 18.435 7.200 1.00 40.04 ATOM 148 OG SER D 250 9.283 19.848 7.175 1.00 40.66 ATOM 149 N GLY D 251 12.450 19.180 8.814 1.00 41.10 ATOM 150 CA GLY D 251 13.750 19.786 8.514 1.00 38.75 ATOM 151 C GLY D 251 13.617 21.039 7.659 1.00 37.11 ATOM 152 O GLY D 251 14.467 21.311 6.801 1.00 34.13 ATOM 153 N VAL D 252 12.547 21.796 7.904 1.00 35.48 ATOM 154 CA VAL D 252 12.245 23.030 7.171 1.00 35.27 ATOM 155 C VAL D 252 12.060 24.185 8.159 1.00 36.83 ATOM 156 O VAL D 252 11.634 23.968 9.293 1.00 36.17 ATOM 157 CB VAL D 252 10.954 22.866 6.325 1.00 33.29 ATOM 158 CG1 VAL D 252 10.549 24.180 5.666 1.00 31.60 ATOM 159 CG2 VAL D 252 11.137 21.779 5.281 1.00 32.04 ATOM 160 N CYS D 253 12.380 25.405 7.726 1.00 40.48 ATOM 161 CA CYS D 253 12.186 26.609 8.548 1.00 43.25 ATOM 162 C CYS D 253 11.203 27.586 7.907 1.00 43.36 ATOM 163 O CYS D 253 11.254 27.825 6.701 1.00 43.58 ATOM 164 CB CYS D 253 13.520 27.320 8.794 1.00 46.20 ATOM 165 SG CYS D 253 14.478 26.673 10.182 1.00 50.88 ATOM 166 N ILE D 254 10.324 28.150 8.736 1.00 43.54 ATOM 167 CA ILE D 254 9.317 29.122 8.305 1.00 43.23 ATOM 168 C ILE D 254 9.262 30.301 9.289 1.00 44.79 ATOM 169 O ILE D 254 9.664 30.155 10.442 1.00 44.72 ATOM 170 CB ILE D 254 7.911 28.469 8.203 1.00 43.80 ATOM 171 CG1 ILE D 254 7.485 27.845 9.541 1.00 43.98 ATOM 172 CG2 ILE D 254 7.897 27.403 7.115 1.00 43.08 ATOM 173 CD1 ILE D 254 6.080 27.249 9.528 1.00 41.96 ATOM 174 N PRO D 255 8.770 31.473 8.841 1.00 45.56 ATOM 175 CA PRO D 255 8.548 32.599 9.757 1.00 47.00 ATOM 176 C PRO D 255 7.521 32.306 10.868 1.00 49.83 ATOM 177 O PRO D 255 6.691 31.406 10.725 1.00 52.58 ATOM 178 CB PRO D 255 8.030 33.707 8.832 1.00 47.89 ATOM 179 CG PRO D 255 8.537 33.357 7.488 1.00 47.47 ATOM 180 CD PRO D 255 8.551 31.863 7.436 1.00 46.77 ATOM 181 N SER D 256 7.588 33.068 11.959 1.00 48.90 ATOM 182 CA SER D 256 6.716 32.854 13.124 1.00 48.04 ATOM 183 C SER D 256 5.292 33.374 12.917 1.00 49.59 ATOM 184 O SER D 256 4.348 32.848 13.510 1.00 52.14 ATOM 185 CB SER D 256 7.315 33.498 14.379 1.00 47.41 ATOM 186 OG SER D 256 8.341 32.690 14.930 1.00 47.60 ATOM 187 N GLN D 257 5.138 34.412 12.097 1.00 48.32 ATOM 188 CA GLN D 257 3.806 34.953 11.789 1.00 47.54 ATOM 189 C GLN D 257 2.978 33.996 10.912 1.00 47.45 ATOM 190 O GLN D 257 1.754 34.114 10.845 1.00 48.57 ATOM 191 CB GLN D 257 3.897 36.350 11.152 1.00 46.90 ATOM 192 CG GLN D 257 4.408 36.402 9.704 1.00 46.56 ATOM 193 CD GLN D 257 5.928 36.351 9.578 1.00 46.21 ATOM 194 OE1 GLN D 257 6.642 36.017 10.528 1.00 44.45 ATOM 195 NE2 GLN D 257 6.426 36.673 8.389 1.00 46.01 ATOM 196 N TYR D 258 3.654 33.057 10.250 1.00 45.80 ATOM 197 CA TYR D 258 2.990 32.003 9.474 1.00 45.32 ATOM 198 C TYR D 258 2.310 30.953 10.379 1.00 45.68 ATOM 199 O TYR D 258 1.501 30.152 9.903 1.00 44.15 ATOM 200 CB TYR D 258 4.000 31.311 8.537 1.00 44.24 ATOM 201 CG TYR D 258 4.429 32.098 7.296 1.00 43.66 ATOM 202 CD1 TYR D 258 4.287 33.483 7.219 1.00 43.11 ATOM 203 CD2 TYR D 258 5.010 31.445 6.207 1.00 42.98 ATOM 204 CE1 TYR D 258 4.689 34.189 6.088 1.00 43.39 ATOM 205 CE2 TYR D 258 5.417 32.144 5.072 1.00 41.70 ATOM 206 CZ TYR D 258 5.256 33.516 5.020 1.00 42.47 ATOM 207 OH TYR D 258 5.657 34.221 3.903 1.00 41.05 ATOM 208 N GLN D 259 2.641 30.955 11.673 1.00 44.28 ATOM 209 CA GLN D 259 2.010 30.047 12.644 1.00 42.28 ATOM 210 C GLN D 259 0.572 30.460 12.943 1.00 40.96 ATOM 211 O GLN D 259 0.290 31.638 13.139 1.00 43.95 ATOM 212 CB GLN D 259 2.790 30.030 13.955 1.00 40.69 ATOM 213 CG GLN D 259 4.238 29.606 13.828 1.00 40.71 ATOM 214 CD GLN D 259 4.925 29.551 15.173 1.00 40.43 ATOM 215 OE1 GLN D 259 5.362 28.493 15.617 1.00 39.49 ATOM 216 NE2 GLN D 259 4.996 30.691 15.847 1.00 39.93 ATOM 217 N CYS D 260 -0.328 29.483 12.983 1.00 41.64 ATOM 218 CA CYS D 260 -1.749 29.721 13.278 1.00 42.09 ATOM 219 C CYS D 260 -2.370 30.817 12.405 1.00 40.92 ATOM 220 O CYS D 260 -2.799 31.852 12.914 1.00 41.37 ATOM 221 CB CYS D 260 -1.938 30.059 14.766 1.00 42.17 ATOM 222 SG CYS D 260 -1.379 28.759 15.900 1.00 43.80 ATOM 223 N ASN D 261 -2.407 30.582 11.094 1.00 40.43 ATOM 224 CA ASN D 261 -3.033 31.528 10.150 1.00 38.97 ATOM 225 C ASN D 261 -4.052 30.913 9.180 1.00 38.41 ATOM 226 O ASN D 261 -4.628 31.627 8.360 1.00 38.58 ATOM 227 CB ASN D 261 -1.962 32.307 9.371 1.00 38.40 ATOM 228 CG ASN D 261 -1.074 31.414 8.528 1.00 38.41 ATOM 229 OD1 ASN D 261 -1.008 30.200 8.734 1.00 38.54 ATOM 230 ND2 ASN D 261 -0.373 32.017 7.576 1.00 37.90 ATOM 231 N GLY D 262 -4.282 29.604 9.285 1.00 38.46 ATOM 232 CA GLY D 262 -5.272 28.909 8.454 1.00 38.89 ATOM 233 C GLY D 262 -4.639 27.981 7.437 1.00 40.20 ATOM 234 O GLY D 262 -5.174 26.910 7.140 1.00 41.66 ATOM 235 N GLU D 263 -3.496 28.403 6.901 1.00 39.81 ATOM 236 CA GLU D 263 -2.748 27.630 5.919 1.00 37.69 ATOM 237 C GLU D 263 -1.687 26.785 6.615 1.00 37.30 ATOM 238 O GLU D 263 -0.930 27.295 7.447 1.00 36.79 ATOM 239 CB GLU D 263 -2.077 28.585 4.931 1.00 37.51 ATOM 240 CG GLU D 263 -1.297 27.918 3.796 1.00 37.05 ATOM 241 CD GLU D 263 -0.474 28.921 3.002 1.00 37.55 ATOM 242 OE1 GLU D 263 0.636 28.560 2.550 1.00 39.67 ATOM 243 OE2 GLU D 263 -0.926 30.076 2.834 1.00 34.26 ATOM 244 N VAL D 264 -1.634 25.502 6.265 1.00 35.64 ATOM 245 CA VAL D 264 -0.579 24.605 6.734 1.00 34.43 ATOM 246 C VAL D 264 0.640 24.829 5.835 1.00 34.82 ATOM 247 O VAL D 264 0.506 24.846 4.609 1.00 34.87 ATOM 248 CB VAL D 264 -1.013 23.121 6.658 1.00 35.37 ATOM 249 CG1 VAL D 264 -0.006 22.231 7.388 1.00 36.27 ATOM 250 CG2 VAL D 264 -2.419 22.924 7.230 1.00 33.89 ATOM 251 N ASP D 265 1.813 25.016 6.439 1.00 33.75 ATOM 252 CA ASP D 265 3.054 25.269 5.689 1.00 33.10 ATOM 253 C ASP D 265 4.146 24.230 5.940 1.00 35.53 ATOM 254 O ASP D 265 5.248 24.340 5.395 1.00 36.75 ATOM 255 CB ASP D 265 3.617 26.646 6.031 1.00 32.80 ATOM 256 CG ASP D 265 2.546 27.709 6.157 1.00 32.75 ATOM 257 OD1 ASP D 265 1.616 27.753 5.321 1.00 32.92 ATOM 258 OD2 ASP D 265 2.645 28.510 7.101 1.00 31.65 ATOM 259 N CYS D 266 3.856 23.238 6.773 1.00 38.43 ATOM 260 CA CYS D 266 4.770 22.121 6.980 1.00 39.34 ATOM 261 C CYS D 266 4.052 20.840 6.609 1.00 38.03 ATOM 262 O CYS D 266 2.857 20.688 6.863 1.00 39.16 ATOM 263 CB CYS D 266 5.248 22.041 8.432 1.00 40.28 ATOM 264 SG CYS D 266 5.620 23.632 9.194 1.00 42.34 ATOM 265 CA CA D 600 0.488 28.290 8.935 1.00 45.51 ATOM 266 CA CA D 601 16.939 32.514 4.702 1.00 61.38 TER