HEADER IMMUNE SYSTEM/VIRUS 31-DEC-69 7CVY TITLE Cryo-EM structure of Chikungunya virus in complex with Fab fragments TITLE 2 of mAb CHK-124 COMPND MOL_ID: 4; COMPND 2 MOLECULE: E1 glycoprotein; COMPND 3 CHAIN: F, A, P, K; COMPND 4 EC: 3.4.21.90; EXPDTA ELECTRON MICROSCOPY DBREF 7CVY F 1 439 UNP D7R998 D7R998_CHIK 810 1248 SEQRES 1 F 101 ALA PRO SER LEU THR ASP MET SER CYS GLU VAL PRO ALA SEQRES 2 F 101 CYS THR HIS SER SER ASP PHE GLY GLY VAL ALA ILE ILE SEQRES 3 F 101 LYS TYR ALA VAL SER LYS LYS GLY LYS CYS ALA VAL HIS SEQRES 4 F 101 SER MET THR ASN ALA VAL THR ILE ARG GLU ALA GLU ILE SEQRES 5 F 101 GLU VAL GLU GLY ASN SER GLN LEU GLN ILE SER PHE SER SEQRES 6 F 101 THR ALA LEU ALA SER ALA GLU PHE ARG VAL GLN VAL CYS SEQRES 7 F 101 SER THR GLN VAL HIS CYS ALA ALA GLU CYS HIS PRO PRO SEQRES 8 F 101 LYS ASP HIS ILE VAL ASN TYR PRO ALA SER ATOM 1 CA ALA F 293 34.237 6.811 270.034 1.00 93.90 ATOM 2 CA PRO F 294 30.492 7.571 269.954 1.00 99.61 ATOM 3 CA SER F 295 29.237 7.586 266.374 1.00 82.30 ATOM 4 CA LEU F 296 26.283 9.668 265.251 1.00 97.33 ATOM 5 CA THR F 297 23.334 8.475 263.200 1.00126.81 ATOM 6 CA ASP F 298 20.315 9.993 261.416 1.00130.38 ATOM 7 CA MET F 299 21.793 13.384 262.292 1.00113.79 ATOM 8 CA SER F 300 20.000 16.303 260.636 1.00117.28 ATOM 9 CA CYS F 301 21.189 19.906 260.466 1.00128.14 ATOM 10 CA GLU F 302 19.150 23.081 260.096 1.00124.31 ATOM 11 CA VAL F 303 19.609 26.833 260.399 1.00101.68 ATOM 12 CA PRO F 304 17.325 29.206 262.312 1.00 83.99 ATOM 13 CA ALA F 305 19.019 32.238 260.761 1.00 76.99 ATOM 14 CA CYS F 306 22.442 33.621 259.919 1.00 73.11 ATOM 15 CA THR F 307 23.869 37.015 259.005 1.00 77.20 ATOM 16 CA HIS F 308 27.383 37.446 257.648 1.00 81.24 ATOM 17 CA SER F 309 29.243 39.724 260.047 1.00 58.96 ATOM 18 CA SER F 310 32.737 40.288 261.382 1.00 61.91 ATOM 19 CA ASP F 311 31.707 37.877 264.144 1.00 70.77 ATOM 20 CA PHE F 312 29.361 34.926 264.647 1.00 66.81 ATOM 21 CA GLY F 313 26.157 36.251 263.145 1.00 82.25 ATOM 22 CA GLY F 314 25.430 32.698 262.025 1.00 81.83 ATOM 23 CA VAL F 315 24.064 29.993 264.318 1.00 94.53 ATOM 24 CA ALA F 316 22.636 26.620 263.292 1.00 91.47 ATOM 25 CA ILE F 317 20.996 23.640 264.972 1.00110.18 ATOM 26 CA ILE F 318 21.609 19.928 264.453 1.00102.52 ATOM 27 CA LYS F 319 19.174 17.144 265.309 1.00113.67 ATOM 28 CA TYR F 320 20.956 13.859 265.785 1.00114.24 ATOM 29 CA ALA F 321 21.175 10.411 267.329 1.00117.43 ATOM 30 CA VAL F 322 24.362 8.848 268.695 1.00106.84 ATOM 31 CA SER F 323 25.468 5.564 270.233 1.00108.84 ATOM 32 CA LYS F 324 26.495 6.724 273.707 1.00121.74 ATOM 33 CA LYS F 325 27.268 9.789 275.788 1.00153.73 ATOM 34 CA GLY F 326 30.554 11.586 275.225 1.00162.00 ATOM 35 CA LYS F 327 32.158 14.656 273.717 1.00158.67 ATOM 36 CA CYS F 328 33.360 14.357 270.124 1.00142.31 ATOM 37 CA ALA F 329 34.970 16.965 267.911 1.00114.02 ATOM 38 CA VAL F 330 33.305 18.854 265.071 1.00 81.47 ATOM 39 CA HIS F 331 34.518 20.426 261.852 1.00 63.96 ATOM 40 CA SER F 332 33.275 21.935 258.605 1.00 70.71 ATOM 41 CA MET F 333 35.344 20.421 255.810 1.00 59.71 ATOM 42 CA THR F 334 34.051 23.256 253.634 1.00 58.95 ATOM 43 CA ASN F 335 36.541 26.111 253.480 1.00 59.50 ATOM 44 CA ALA F 336 34.044 28.973 253.604 1.00 58.31 ATOM 45 CA VAL F 337 32.327 28.298 256.921 1.00 68.74 ATOM 46 CA THR F 338 34.204 28.518 260.213 1.00 77.11 ATOM 47 CA ILE F 339 33.301 27.601 263.788 1.00 81.25 ATOM 48 CA ARG F 340 34.336 28.698 267.272 1.00 95.41 ATOM 49 CA GLU F 341 33.179 25.752 269.384 1.00 93.47 ATOM 50 CA ALA F 342 35.322 22.612 269.421 1.00 94.64 ATOM 51 CA GLU F 343 33.432 19.619 270.837 1.00126.15 ATOM 52 CA ILE F 344 30.315 18.863 272.874 1.00139.12 ATOM 53 CA GLU F 345 28.808 15.816 274.530 1.00158.04 ATOM 54 CA VAL F 346 25.635 14.475 272.939 1.00135.83 ATOM 55 CA GLU F 347 24.203 11.893 275.426 1.00139.36 ATOM 56 CA GLY F 348 22.197 9.889 272.941 1.00129.65 ATOM 57 CA ASN F 349 19.242 11.327 271.063 1.00134.40 ATOM 58 CA SER F 350 19.234 15.037 271.910 1.00129.35 ATOM 59 CA GLN F 351 19.623 18.478 270.334 1.00117.44 ATOM 60 CA LEU F 352 22.752 20.534 269.696 1.00108.66 ATOM 61 CA GLN F 353 23.277 24.213 268.879 1.00 94.86 ATOM 62 CA ILE F 354 26.196 25.428 266.760 1.00 87.89 ATOM 63 CA SER F 355 27.332 28.935 265.840 1.00 79.00 ATOM 64 CA PHE F 356 29.565 29.806 262.906 1.00 76.92 ATOM 65 CA SER F 357 30.735 32.578 260.593 1.00 77.96 ATOM 66 CA THR F 358 31.230 33.305 256.895 1.00 73.11 ATOM 67 CA ALA F 359 30.947 36.131 254.409 1.00 81.25 ATOM 68 CA LEU F 360 29.136 33.862 251.968 1.00 92.50 ATOM 69 CA ALA F 361 25.464 34.689 251.500 1.00 91.27 ATOM 70 CA SER F 362 24.132 31.099 251.270 1.00105.57 ATOM 71 CA ALA F 363 25.724 28.628 253.682 1.00114.75 ATOM 72 CA GLU F 364 25.362 25.503 251.566 1.00117.71 ATOM 73 CA PHE F 365 28.262 23.427 252.806 1.00 89.21 ATOM 74 CA ARG F 366 29.485 20.294 254.579 1.00 83.17 ATOM 75 CA VAL F 367 30.442 19.569 258.188 1.00 61.89 ATOM 76 CA GLN F 368 32.232 16.510 259.552 1.00 87.86 ATOM 77 CA VAL F 369 31.115 16.077 263.159 1.00 84.36 ATOM 78 CA CYS F 370 33.572 13.601 264.708 1.00101.00 ATOM 79 CA SER F 371 33.639 11.671 261.425 1.00 70.57 ATOM 80 CA THR F 372 29.959 12.269 260.616 1.00 68.33 ATOM 81 CA GLN F 373 29.094 14.243 257.487 1.00 67.00 ATOM 82 CA VAL F 374 26.000 16.166 256.412 1.00 73.86 ATOM 83 CA HIS F 375 25.083 18.917 253.965 1.00 93.92 ATOM 84 CA CYS F 376 23.882 22.133 255.598 1.00 94.75 ATOM 85 CA ALA F 377 21.797 24.627 253.619 1.00104.78 ATOM 86 CA ALA F 378 21.305 28.193 254.807 1.00111.54 ATOM 87 CA GLU F 379 20.619 31.779 253.785 1.00 93.01 ATOM 88 CA CYS F 380 22.585 34.723 255.124 1.00 94.41 ATOM 89 CA HIS F 381 21.951 38.433 255.661 1.00 78.14 ATOM 90 CA PRO F 382 23.906 41.686 255.938 1.00 88.37 ATOM 91 CA PRO F 383 24.000 43.983 258.956 1.00 74.46 ATOM 92 CA LYS F 384 23.955 47.772 258.615 1.00 90.49 ATOM 93 CA ASP F 385 27.006 49.932 257.844 1.00 74.45 ATOM 94 CA HIS F 386 29.206 48.807 260.715 1.00 58.49 ATOM 95 CA ILE F 387 32.872 48.682 261.643 1.00 55.53 ATOM 96 CA VAL F 388 33.796 46.321 264.455 1.00 52.92 ATOM 97 CA ASN F 389 36.935 46.557 266.566 1.00 67.40 ATOM 98 CA TYR F 390 37.963 43.011 265.780 1.00 58.54 ATOM 99 CA PRO F 391 38.507 41.795 262.207 1.00 33.63 ATOM 100 CA ALA F 392 36.295 39.362 260.319 1.00 46.86 ATOM 101 CA SER F 393 36.464 36.007 262.088 1.00 60.68 TER