HEADER VIRUS/IMMUNE SYSTEM 31-DEC-69 7CVZ TITLE Cryo-EM structure of Chikungunya virus in complex with Fab fragments TITLE 2 of mAb CHK-263 COMPND MOL_ID: 4; COMPND 2 MOLECULE: Fab heavy chain; COMPND 3 CHAIN: O, Q; J, A; EXPDTA ELECTRON MICROSCOPY DBREF 7CVZ O 1 216 PDB 7CVZ 7CVZ 1 216 SEQRES 1 O 115 VAL GLN LEU GLN GLN SER GLY ALA GLU LEU VAL LYS PRO SEQRES 2 O 115 GLY ALA SER VAL LYS ILE SER CYS LYS ALA SER GLY TYR SEQRES 3 O 115 ALA PHE SER SER TYR TRP MET ASN TRP VAL LYS GLN ARG SEQRES 4 O 115 PRO GLY LYS GLY LEU GLU TRP ILE GLY GLN ILE TYR PRO SEQRES 5 O 115 GLY ASP GLY ASP THR ASN TYR ASN GLY LYS PHE LYS GLY SEQRES 6 O 115 LYS ALA THR LEU THR ALA ASP LYS SER SER SER THR ALA SEQRES 7 O 115 TYR MET GLN LEU SER SER LEU THR SER GLU ASP SER ALA SEQRES 8 O 115 VAL TYR PHE CYS ALA ARG GLY GLY LEU THR ILE ASP TYR SEQRES 9 O 115 TRP GLY GLN GLY THR THR LEU THR VAL SER SER ATOM 1 CA VAL O 1 38.330 28.603 323.909 1.00151.45 ATOM 2 CA GLN O 2 41.832 29.568 325.057 1.00147.12 ATOM 3 CA LEU O 3 41.585 31.477 328.356 1.00144.12 ATOM 4 CA GLN O 4 39.989 30.503 331.688 1.00156.44 ATOM 5 CA GLN O 5 36.909 31.474 333.695 1.00152.07 ATOM 6 CA SER O 6 36.234 33.675 336.730 1.00151.45 ATOM 7 CA GLY O 7 34.734 30.951 338.926 1.00144.30 ATOM 8 CA ALA O 8 31.215 30.309 340.161 1.00139.59 ATOM 9 CA GLU O 9 29.982 32.957 342.582 1.00139.27 ATOM 10 CA LEU O 10 26.836 33.668 344.605 1.00136.84 ATOM 11 CA VAL O 11 26.696 36.955 346.522 1.00138.97 ATOM 12 CA LYS O 12 24.075 39.155 348.184 1.00138.81 ATOM 13 CA PRO O 13 23.483 42.798 347.193 1.00140.24 ATOM 14 CA GLY O 14 25.169 45.618 349.053 1.00143.49 ATOM 15 CA ALA O 15 28.953 45.796 349.305 1.00155.58 ATOM 16 CA SER O 16 31.311 45.387 346.360 1.00152.49 ATOM 17 CA VAL O 17 32.415 42.136 344.722 1.00151.00 ATOM 18 CA LYS O 18 35.528 41.280 342.727 1.00144.81 ATOM 19 CA ILE O 19 35.755 38.476 340.171 1.00142.47 ATOM 20 CA SER O 20 38.598 37.985 337.703 1.00145.30 ATOM 21 CA CYS O 21 38.763 36.298 334.290 1.00147.57 ATOM 22 CA LYS O 22 42.354 35.101 334.008 1.00154.44 ATOM 23 CA ALA O 23 43.528 35.101 330.390 1.00150.44 ATOM 24 CA SER O 24 45.794 32.501 328.783 1.00144.28 ATOM 25 CA GLY O 25 46.278 34.362 325.506 1.00146.59 ATOM 26 CA TYR O 26 49.846 34.231 324.245 1.00146.62 ATOM 27 CA ALA O 27 49.944 38.064 324.245 1.00145.28 ATOM 28 CA PHE O 28 48.344 39.246 327.483 1.00155.82 ATOM 29 CA SER O 29 49.750 42.760 327.078 1.00145.50 ATOM 30 CA SER O 30 48.728 43.218 323.439 1.00141.07 ATOM 31 CA TYR O 31 45.347 41.526 323.026 1.00129.30 ATOM 32 CA TRP O 32 42.105 43.107 324.236 1.00137.73 ATOM 33 CA MET O 33 39.508 41.585 326.563 1.00141.14 ATOM 34 CA ASN O 34 35.959 42.788 327.165 1.00148.77 ATOM 35 CA TRP O 35 33.153 42.724 329.727 1.00138.77 ATOM 36 CA VAL O 36 29.487 42.183 328.898 1.00132.04 ATOM 37 CA LYS O 37 26.088 42.247 330.612 1.00126.21 ATOM 38 CA GLN O 38 23.096 40.061 329.724 1.00129.76 ATOM 39 CA ARG O 39 19.816 40.330 331.575 1.00124.09 ATOM 40 CA PRO O 40 17.775 37.260 330.528 1.00124.22 ATOM 41 CA GLY O 41 14.941 38.335 328.258 1.00129.52 ATOM 42 CA LYS O 42 16.511 41.683 327.296 1.00133.26 ATOM 43 CA GLY O 43 19.410 41.132 324.897 1.00129.00 ATOM 44 CA LEU O 44 22.968 42.292 325.559 1.00118.76 ATOM 45 CA GLU O 45 24.855 45.261 326.982 1.00118.66 ATOM 46 CA TRP O 46 28.470 46.405 326.672 1.00120.38 ATOM 47 CA ILE O 47 30.439 47.240 329.821 1.00122.94 ATOM 48 CA GLY O 48 33.981 48.143 328.823 1.00128.44 ATOM 49 CA GLN O 49 37.527 46.971 328.205 1.00129.41 ATOM 50 CA ILE O 50 41.145 47.792 329.049 1.00130.40 ATOM 51 CA TYR O 51 44.613 47.461 327.547 1.00135.99 ATOM 52 CA PRO O 52 46.939 45.668 330.011 1.00144.80 ATOM 53 CA GLY O 53 49.440 48.509 329.708 1.00133.73 ATOM 54 CA ASP O 54 49.120 51.603 331.891 1.00131.83 ATOM 55 CA GLY O 55 45.485 50.919 332.802 1.00126.83 ATOM 56 CA ASP O 56 43.437 52.312 329.910 1.00127.50 ATOM 57 CA THR O 57 40.195 53.258 331.646 1.00128.31 ATOM 58 CA ASN O 58 37.036 52.806 329.572 1.00126.36 ATOM 59 CA TYR O 59 33.550 53.686 330.776 1.00127.61 ATOM 60 CA ASN O 60 29.889 53.047 329.985 1.00127.17 ATOM 61 CA GLY O 61 26.811 55.252 329.946 1.00126.05 ATOM 62 CA LYS O 62 25.209 53.442 332.886 1.00120.37 ATOM 63 CA PHE O 63 28.534 52.467 334.527 1.00118.90 ATOM 64 CA LYS O 64 30.048 55.908 335.120 1.00124.25 ATOM 65 CA GLY O 65 30.552 55.282 338.837 1.00129.34 ATOM 66 CA LYS O 66 29.091 51.831 339.461 1.00129.03 ATOM 67 CA ALA O 67 32.373 50.088 338.587 1.00130.40 ATOM 68 CA THR O 68 36.127 50.618 338.357 1.00137.44 ATOM 69 CA LEU O 69 38.027 48.043 336.309 1.00129.90 ATOM 70 CA THR O 70 41.603 47.078 337.135 1.00136.84 ATOM 71 CA ALA O 71 44.168 44.429 336.252 1.00144.86 ATOM 72 CA ASP O 72 47.504 43.062 337.460 1.00158.66 ATOM 73 CA LYS O 73 50.396 43.172 334.998 1.00159.30 ATOM 74 CA SER O 74 52.517 40.777 337.068 1.00163.96 ATOM 75 CA SER O 75 49.718 38.250 337.641 1.00165.61 ATOM 76 CA SER O 76 48.441 38.651 334.043 1.00160.64 ATOM 77 CA THR O 77 44.916 38.807 335.497 1.00155.73 ATOM 78 CA ALA O 78 42.076 41.282 334.949 1.00141.76 ATOM 79 CA TYR O 79 39.800 41.962 337.923 1.00140.53 ATOM 80 CA MET O 80 36.106 42.771 337.493 1.00148.43 ATOM 81 CA GLN O 81 34.839 45.160 340.179 1.00148.24 ATOM 82 CA LEU O 82 31.222 46.157 340.875 1.00152.53 ATOM 83 CA SER O 83 30.634 48.416 343.883 1.00149.74 ATOM 84 CA SER O 84 27.286 49.655 345.221 1.00150.20 ATOM 85 CA LEU O 85 25.353 46.626 344.012 1.00154.65 ATOM 86 CA THR O 86 21.569 46.406 343.714 1.00167.57 ATOM 87 CA SER O 87 18.947 43.753 342.950 1.00176.03 ATOM 88 CA GLU O 88 18.139 44.949 339.410 1.00179.11 ATOM 89 CA ASP O 89 21.635 44.155 338.059 1.00172.18 ATOM 90 CA SER O 90 21.128 40.368 338.211 1.00154.51 ATOM 91 CA ALA O 91 22.709 39.528 334.855 1.00136.17 ATOM 92 CA VAL O 92 25.630 37.709 333.216 1.00136.89 ATOM 93 CA TYR O 93 29.045 39.338 333.714 1.00139.90 ATOM 94 CA PHE O 94 32.132 37.607 332.320 1.00144.65 ATOM 95 CA CYS O 95 35.161 37.910 330.042 1.00142.36 ATOM 96 CA ALA O 96 36.498 35.612 327.342 1.00143.16 ATOM 97 CA ARG O 97 38.327 35.523 324.010 1.00139.07 ATOM 98 CA GLY O 98 35.770 33.769 321.783 1.00137.17 ATOM 99 CA GLY O 99 34.432 37.039 320.414 1.00140.06 ATOM 100 CA LEU O 100 36.401 39.591 318.410 1.00145.67 ATOM 101 CA THR O 101 36.589 42.863 320.388 1.00152.77 ATOM 102 CA ILE O 102 33.645 41.470 322.400 1.00151.85 ATOM 103 CA ASP O 103 33.598 38.901 325.190 1.00149.38 ATOM 104 CA TYR O 104 30.842 36.902 326.857 1.00147.79 ATOM 105 CA TRP O 105 32.264 33.649 328.313 1.00160.89 ATOM 106 CA GLY O 106 29.068 31.628 328.224 1.00152.12 ATOM 107 CA GLN O 107 30.147 29.383 331.090 1.00152.35 ATOM 108 CA GLY O 108 26.834 29.863 332.907 1.00157.36 ATOM 109 CA THR O 109 28.179 30.616 336.407 1.00152.37 ATOM 110 CA THR O 110 26.657 34.076 336.748 1.00150.62 ATOM 111 CA LEU O 111 26.599 36.300 339.837 1.00138.58 ATOM 112 CA THR O 112 23.060 36.238 341.255 1.00152.99 ATOM 113 CA VAL O 113 22.126 38.767 343.949 1.00154.95 ATOM 114 CA SER O 114 19.508 37.538 346.421 1.00163.92 ATOM 115 CA SER O 115 17.895 39.041 349.521 1.00176.96 TER