HEADER VIRUS/IMMUNE SYSTEM 31-DEC-69 7CW2 TITLE Cryo-EM structure of Chikungunya virus in complex with Fab fragments TITLE 2 of mAb CHK-263 (subregion around icosahedral 5-fold vertex) COMPND MOL_ID: 4; COMPND 2 MOLECULE: Fab heavy chain; COMPND 3 CHAIN: U, W; EXPDTA ELECTRON MICROSCOPY DBREF 7CW2 U 1 216 PDB 7CW2 7CW2 1 216 SEQRES 1 U 115 VAL GLN LEU GLN GLN SER GLY ALA GLU LEU VAL LYS PRO SEQRES 2 U 115 GLY ALA SER VAL LYS ILE SER CYS LYS ALA SER GLY TYR SEQRES 3 U 115 ALA PHE SER SER TYR TRP MET ASN TRP VAL LYS GLN ARG SEQRES 4 U 115 PRO GLY LYS GLY LEU GLU TRP ILE GLY GLN ILE TYR PRO SEQRES 5 U 115 GLY ASP GLY ASP THR ASN TYR ASN GLY LYS PHE LYS GLY SEQRES 6 U 115 LYS ALA THR LEU THR ALA ASP LYS SER SER SER THR ALA SEQRES 7 U 115 TYR MET GLN LEU SER SER LEU THR SER GLU ASP SER ALA SEQRES 8 U 115 VAL TYR PHE CYS ALA ARG GLY GLY LEU THR ILE ASP TYR SEQRES 9 U 115 TRP GLY GLN GLY THR THR LEU THR VAL SER SER ATOM 1 CA VAL U 1 136.949 131.154 107.626 1.00142.01 ATOM 2 CA GLN U 2 134.543 128.294 106.911 1.00134.53 ATOM 3 CA LEU U 3 132.542 128.795 103.703 1.00126.63 ATOM 4 CA GLN U 4 133.002 130.420 100.309 1.00122.29 ATOM 5 CA GLN U 5 131.292 133.584 99.106 1.00122.53 ATOM 6 CA SER U 6 129.380 134.227 95.888 1.00117.45 ATOM 7 CA GLY U 7 132.133 136.534 94.619 1.00116.45 ATOM 8 CA ALA U 8 132.168 140.226 93.787 1.00113.73 ATOM 9 CA GLU U 9 129.371 140.971 91.326 1.00116.18 ATOM 10 CA LEU U 10 128.270 144.103 89.464 1.00118.34 ATOM 11 CA VAL U 11 125.181 144.400 87.259 1.00113.33 ATOM 12 CA LYS U 12 122.665 146.938 85.939 1.00109.32 ATOM 13 CA PRO U 13 118.985 146.986 86.960 1.00107.75 ATOM 14 CA GLY U 14 116.665 144.629 85.138 1.00109.97 ATOM 15 CA ALA U 15 117.080 140.855 85.033 1.00114.82 ATOM 16 CA SER U 16 117.267 138.777 88.211 1.00108.86 ATOM 17 CA VAL U 17 120.777 137.857 89.317 1.00114.26 ATOM 18 CA LYS U 18 121.476 134.392 90.736 1.00111.80 ATOM 19 CA ILE U 19 124.671 134.209 92.779 1.00110.85 ATOM 20 CA SER U 20 125.886 131.066 94.542 1.00110.92 ATOM 21 CA CYS U 21 127.569 131.337 97.936 1.00117.06 ATOM 22 CA LYS U 22 129.347 128.006 98.293 1.00115.54 ATOM 23 CA ALA U 23 128.679 126.462 101.686 1.00121.13 ATOM 24 CA SER U 24 132.232 125.129 102.039 1.00132.96 ATOM 25 CA GLY U 25 132.520 125.119 105.834 1.00136.09 ATOM 26 CA TYR U 26 133.395 122.166 108.044 1.00128.20 ATOM 27 CA ALA U 27 129.765 120.993 107.860 1.00126.12 ATOM 28 CA PHE U 28 127.389 121.447 104.929 1.00122.80 ATOM 29 CA SER U 29 124.163 119.729 106.031 1.00123.58 ATOM 30 CA SER U 30 124.338 120.787 109.701 1.00122.67 ATOM 31 CA TYR U 31 124.084 124.588 109.506 1.00115.68 ATOM 32 CA TRP U 32 121.665 126.705 107.525 1.00112.23 ATOM 33 CA MET U 33 122.409 129.772 105.448 1.00113.31 ATOM 34 CA ASN U 34 120.920 133.232 105.849 1.00109.34 ATOM 35 CA TRP U 35 120.821 136.324 103.673 1.00103.85 ATOM 36 CA VAL U 36 121.144 139.835 105.048 1.00100.64 ATOM 37 CA LYS U 37 120.788 143.443 103.932 1.00102.82 ATOM 38 CA GLN U 38 123.019 146.345 104.960 1.00105.23 ATOM 39 CA ARG U 39 122.506 150.001 104.031 1.00105.13 ATOM 40 CA PRO U 40 124.710 152.472 105.916 1.00107.94 ATOM 41 CA GLY U 41 122.509 155.579 105.802 1.00106.11 ATOM 42 CA LYS U 42 119.162 153.906 105.055 1.00108.61 ATOM 43 CA GLY U 43 118.883 151.286 107.815 1.00110.47 ATOM 44 CA LEU U 44 119.294 147.549 108.227 1.00108.49 ATOM 45 CA GLU U 45 117.259 144.623 106.939 1.00109.31 ATOM 46 CA TRP U 46 117.340 140.838 106.784 1.00114.81 ATOM 47 CA ILE U 47 116.131 138.433 104.126 1.00113.88 ATOM 48 CA GLY U 48 115.536 134.845 105.191 1.00112.92 ATOM 49 CA GLN U 49 116.813 131.324 105.712 1.00112.01 ATOM 50 CA ILE U 50 116.730 127.979 103.910 1.00113.49 ATOM 51 CA TYR U 51 118.147 124.470 104.218 1.00118.98 ATOM 52 CA PRO U 52 119.666 121.966 101.792 1.00119.65 ATOM 53 CA GLY U 53 117.275 119.236 102.877 1.00125.23 ATOM 54 CA ASP U 54 113.938 118.759 101.186 1.00126.67 ATOM 55 CA GLY U 55 114.306 122.460 100.343 1.00129.72 ATOM 56 CA ASP U 56 112.398 124.267 103.090 1.00116.13 ATOM 57 CA THR U 57 112.469 128.041 102.591 1.00116.76 ATOM 58 CA ASN U 58 111.837 130.550 105.386 1.00113.57 ATOM 59 CA TYR U 59 112.288 134.151 104.246 1.00114.30 ATOM 60 CA ASN U 60 110.995 137.595 105.164 1.00115.68 ATOM 61 CA GLY U 61 107.321 138.495 105.248 1.00122.67 ATOM 62 CA LYS U 62 107.939 141.482 102.971 1.00118.24 ATOM 63 CA PHE U 63 109.839 139.853 100.075 1.00117.96 ATOM 64 CA LYS U 64 107.414 137.217 98.776 1.00122.78 ATOM 65 CA GLY U 65 106.905 138.864 95.391 1.00128.82 ATOM 66 CA LYS U 66 110.521 139.925 94.868 1.00119.59 ATOM 67 CA ALA U 67 112.985 137.437 96.371 1.00118.09 ATOM 68 CA THR U 68 113.488 133.706 95.872 1.00113.17 ATOM 69 CA LEU U 69 115.771 131.363 97.800 1.00113.34 ATOM 70 CA THR U 70 117.129 127.960 96.794 1.00110.89 ATOM 71 CA ALA U 71 120.007 125.748 97.906 1.00114.03 ATOM 72 CA ASP U 72 122.253 123.475 95.844 1.00106.74 ATOM 73 CA LYS U 73 121.712 120.087 97.468 1.00108.67 ATOM 74 CA SER U 74 124.058 118.358 95.009 1.00102.74 ATOM 75 CA SER U 75 127.006 120.592 95.941 1.00107.82 ATOM 76 CA SER U 76 126.022 122.410 99.182 1.00108.11 ATOM 77 CA THR U 77 125.787 125.927 97.754 1.00108.27 ATOM 78 CA ALA U 78 123.639 128.851 98.903 1.00108.51 ATOM 79 CA TYR U 79 121.723 131.092 96.501 1.00110.32 ATOM 80 CA MET U 80 120.354 134.640 96.580 1.00111.69 ATOM 81 CA GLN U 81 118.125 135.890 93.758 1.00116.57 ATOM 82 CA LEU U 82 116.019 139.023 93.391 1.00118.50 ATOM 83 CA SER U 83 113.577 139.470 90.521 1.00123.68 ATOM 84 CA SER U 84 113.472 142.969 89.000 1.00117.69 ATOM 85 CA LEU U 85 116.560 144.416 90.653 1.00111.28 ATOM 86 CA THR U 86 115.954 148.025 91.660 1.00107.93 ATOM 87 CA SER U 87 118.679 150.668 91.706 1.00105.55 ATOM 88 CA GLU U 88 118.140 151.441 95.410 1.00103.31 ATOM 89 CA ASP U 89 118.301 148.176 97.419 1.00105.93 ATOM 90 CA SER U 90 121.202 146.170 95.969 1.00107.78 ATOM 91 CA ALA U 91 123.238 145.291 99.057 1.00105.78 ATOM 92 CA VAL U 92 125.757 142.711 100.242 1.00106.64 ATOM 93 CA TYR U 93 124.239 139.293 99.505 1.00107.01 ATOM 94 CA PHE U 94 126.825 136.919 100.961 1.00112.40 ATOM 95 CA CYS U 95 127.430 134.647 103.942 1.00114.50 ATOM 96 CA ALA U 96 129.865 134.505 106.877 1.00114.26 ATOM 97 CA ARG U 97 128.685 131.253 108.463 1.00116.71 ATOM 98 CA GLY U 98 131.419 131.058 111.134 1.00120.62 ATOM 99 CA GLY U 99 128.918 132.045 113.813 1.00117.18 ATOM 100 CA LEU U 100 125.250 131.793 114.771 1.00118.07 ATOM 101 CA THR U 101 122.677 133.617 112.608 1.00112.71 ATOM 102 CA ILE U 102 125.387 135.562 110.792 1.00109.55 ATOM 103 CA ASP U 103 125.706 135.318 107.012 1.00110.34 ATOM 104 CA TYR U 104 127.128 138.523 105.517 1.00109.83 ATOM 105 CA TRP U 105 130.750 137.937 104.404 1.00114.72 ATOM 106 CA GLY U 106 131.819 141.474 105.233 1.00108.48 ATOM 107 CA GLN U 107 135.148 141.803 103.434 1.00110.98 ATOM 108 CA GLY U 108 134.302 144.397 100.766 1.00108.50 ATOM 109 CA THR U 109 131.926 142.415 98.547 1.00107.98 ATOM 110 CA THR U 110 128.879 144.361 97.335 1.00106.36 ATOM 111 CA LEU U 111 126.415 143.792 94.494 1.00111.61 ATOM 112 CA THR U 112 125.924 147.459 93.609 1.00118.27 ATOM 113 CA VAL U 113 123.548 148.214 90.745 1.00114.91 ATOM 114 CA SER U 114 123.759 151.704 89.250 1.00114.40 ATOM 115 CA SER U 115 121.586 153.982 87.118 1.00113.48 TER