HEADER SIGNALING PROTEIN 31-DEC-69 6AVQ TITLE The Therapeutic Antibody LM609 Selectively Inhibits Ligand Binding to TITLE 2 Human alpha-V beta-3 Integrin via Steric Hindrance COMPND MOL_ID: 2; COMPND 2 MOLECULE: Integrin beta-3; COMPND 3 CHAIN: B; COMPND 4 FRAGMENT: UNP residues ; COMPND 5 ENGINEERED: YES; EXPDTA ELECTRON MICROSCOPY DBREF 6AVQ B 1 692 UNP P05106 ITB3_HUMAN 27 718 SEQRES 1 B 43 CYS ALA CYS GLN ALA GLN ALA GLU PRO ASN SER HIS ARG SEQRES 2 B 43 CYS ASN ASN GLY ASN GLY THR PHE GLU CYS GLY VAL CYS SEQRES 3 B 43 ARG CYS GLY PRO GLY TRP LEU GLY SER GLN CYS GLU CYS SEQRES 4 B 43 SER GLU GLU ASP ATOM 1 N CYS B 435 48.872 19.884 7.574 1.00 53.54 ATOM 2 CA CYS B 435 50.188 20.233 8.044 1.00 53.77 ATOM 3 C CYS B 435 50.100 21.701 8.423 1.00 54.23 ATOM 4 O CYS B 435 49.571 22.490 7.645 1.00 54.24 ATOM 5 CB CYS B 435 51.192 20.008 6.915 1.00 53.65 ATOM 6 N ALA B 436 50.585 22.124 9.589 1.00 54.80 ATOM 7 CA ALA B 436 50.440 23.545 9.904 1.00 55.28 ATOM 8 C ALA B 436 51.136 24.375 8.847 1.00 55.81 ATOM 9 O ALA B 436 50.643 25.430 8.430 1.00 55.79 ATOM 10 CB ALA B 436 51.002 23.875 11.270 1.00 55.24 ATOM 11 N CYS B 437 52.246 23.852 8.338 1.00 56.49 ATOM 12 CA CYS B 437 53.050 24.534 7.349 1.00 57.09 ATOM 13 C CYS B 437 52.432 24.517 5.946 1.00 57.19 ATOM 14 O CYS B 437 53.045 24.993 4.978 1.00 57.16 ATOM 15 CB CYS B 437 54.430 23.958 7.307 1.00 57.36 ATOM 16 N GLN B 438 51.249 23.898 5.822 1.00 57.43 ATOM 17 CA GLN B 438 50.485 23.931 4.592 1.00 57.66 ATOM 18 C GLN B 438 49.840 25.304 4.538 1.00 57.87 ATOM 19 O GLN B 438 49.675 25.901 3.473 1.00 57.91 ATOM 20 CB GLN B 438 49.347 22.900 4.585 1.00 57.70 ATOM 21 N ALA B 439 49.392 25.765 5.722 1.00 58.14 ATOM 22 CA ALA B 439 48.693 27.028 5.871 1.00 58.35 ATOM 23 C ALA B 439 49.700 28.135 6.014 1.00 58.57 ATOM 24 O ALA B 439 49.543 29.224 5.454 1.00 58.56 ATOM 25 CB ALA B 439 47.778 26.990 7.081 1.00 58.33 ATOM 26 N GLN B 440 50.784 27.851 6.733 1.00 58.89 ATOM 27 CA GLN B 440 51.815 28.852 6.927 1.00 59.15 ATOM 28 C GLN B 440 52.737 28.784 5.723 1.00 59.53 ATOM 29 O GLN B 440 53.900 28.379 5.807 1.00 59.59 ATOM 30 CB GLN B 440 52.578 28.633 8.236 1.00 59.13 ATOM 31 N ALA B 441 52.182 29.203 4.600 1.00 59.97 ATOM 32 CA ALA B 441 52.815 29.144 3.301 1.00 60.31 ATOM 33 C ALA B 441 52.365 30.323 2.456 1.00 60.61 ATOM 34 O ALA B 441 51.183 30.661 2.379 1.00 60.65 ATOM 35 CB ALA B 441 52.470 27.831 2.621 1.00 60.32 ATOM 36 N GLU B 442 53.332 30.926 1.795 1.00 61.00 ATOM 37 CA GLU B 442 53.130 32.088 0.950 1.00 61.30 ATOM 38 C GLU B 442 53.887 31.881 -0.358 1.00 61.63 ATOM 39 O GLU B 442 55.025 32.345 -0.470 1.00 61.61 ATOM 40 CB GLU B 442 53.608 33.361 1.660 1.00 61.31 ATOM 41 N PRO B 443 53.337 31.112 -1.326 1.00 62.01 ATOM 42 CA PRO B 443 54.027 30.670 -2.527 1.00 62.20 ATOM 43 C PRO B 443 54.660 31.839 -3.261 1.00 62.42 ATOM 44 O PRO B 443 55.855 31.830 -3.512 1.00 62.42 ATOM 45 CB PRO B 443 52.894 29.985 -3.321 1.00 62.20 ATOM 46 N ASN B 444 53.843 32.834 -3.591 1.00 62.66 ATOM 47 CA ASN B 444 54.273 34.082 -4.204 1.00 62.87 ATOM 48 C ASN B 444 55.187 34.003 -5.430 1.00 63.14 ATOM 49 O ASN B 444 56.038 34.886 -5.584 1.00 63.18 ATOM 50 CB ASN B 444 54.932 34.960 -3.159 1.00 62.84 ATOM 51 N SER B 445 54.975 33.075 -6.378 1.00 63.47 ATOM 52 CA SER B 445 55.873 33.046 -7.549 1.00 63.72 ATOM 53 C SER B 445 57.336 32.799 -7.128 1.00 63.98 ATOM 54 O SER B 445 57.823 31.661 -7.167 1.00 63.99 ATOM 55 CB SER B 445 55.728 34.315 -8.396 1.00 63.71 ATOM 56 N HIS B 446 58.062 33.883 -6.878 1.00 64.29 ATOM 57 CA HIS B 446 59.467 33.888 -6.485 1.00 64.52 ATOM 58 C HIS B 446 59.575 33.197 -5.121 1.00 64.78 ATOM 59 O HIS B 446 58.594 32.658 -4.634 1.00 64.73 ATOM 60 CB HIS B 446 59.997 35.324 -6.408 1.00 64.49 ATOM 61 N ARG B 447 60.781 33.133 -4.536 1.00 65.13 ATOM 62 CA ARG B 447 61.091 32.424 -3.267 1.00 65.42 ATOM 63 C ARG B 447 61.545 30.985 -3.500 1.00 65.75 ATOM 64 O ARG B 447 62.374 30.462 -2.749 1.00 65.77 ATOM 65 CB ARG B 447 59.888 32.359 -2.314 1.00 65.39 ATOM 66 N CYS B 448 61.122 30.373 -4.598 1.00 66.13 ATOM 67 CA CYS B 448 61.667 29.077 -4.991 1.00 66.38 ATOM 68 C CYS B 448 62.990 29.307 -5.710 1.00 66.69 ATOM 69 O CYS B 448 63.121 29.037 -6.902 1.00 66.75 ATOM 70 CB CYS B 448 60.705 28.349 -5.923 1.00 66.30 ATOM 71 N ASN B 449 63.953 29.822 -4.964 1.00 67.04 ATOM 72 CA ASN B 449 65.238 30.251 -5.470 1.00 67.33 ATOM 73 C ASN B 449 64.979 31.171 -6.668 1.00 67.65 ATOM 74 O ASN B 449 64.189 32.113 -6.557 1.00 67.65 ATOM 75 CB ASN B 449 66.079 29.039 -5.806 1.00 67.33 ATOM 76 N ASN B 450 65.631 30.920 -7.799 1.00 68.06 ATOM 77 CA ASN B 450 65.400 31.728 -8.991 1.00 68.39 ATOM 78 C ASN B 450 64.375 31.019 -9.876 1.00 68.76 ATOM 79 O ASN B 450 64.733 30.114 -10.631 1.00 68.79 ATOM 80 CB ASN B 450 66.703 31.961 -9.737 1.00 68.37 ATOM 81 N GLY B 451 63.106 31.407 -9.785 1.00 69.19 ATOM 82 CA GLY B 451 62.067 30.692 -10.507 1.00 69.50 ATOM 83 C GLY B 451 60.670 31.220 -10.205 1.00 69.86 ATOM 84 O GLY B 451 60.504 32.350 -9.740 1.00 69.84 ATOM 85 N ASN B 452 59.682 30.383 -10.518 1.00 70.34 ATOM 86 CA ASN B 452 58.258 30.646 -10.366 1.00 70.84 ATOM 87 C ASN B 452 57.535 29.350 -9.981 1.00 70.37 ATOM 88 O ASN B 452 57.372 28.445 -10.797 1.00 70.39 ATOM 89 CB ASN B 452 57.677 31.256 -11.619 1.00 71.29 ATOM 90 N GLY B 453 57.125 29.249 -8.728 1.00 69.95 ATOM 91 CA GLY B 453 56.514 28.031 -8.231 1.00 69.61 ATOM 92 C GLY B 453 55.796 28.275 -6.922 1.00 69.29 ATOM 93 O GLY B 453 55.293 29.372 -6.674 1.00 69.32 ATOM 94 N THR B 454 55.663 27.232 -6.110 1.00 68.85 ATOM 95 CA THR B 454 54.983 27.359 -4.839 1.00 68.47 ATOM 96 C THR B 454 55.986 27.026 -3.754 1.00 68.08 ATOM 97 O THR B 454 57.170 26.794 -4.040 1.00 68.17 ATOM 98 CB THR B 454 53.739 26.451 -4.739 1.00 68.45 ATOM 99 N PHE B 455 55.550 27.074 -2.511 1.00 67.50 ATOM 100 CA PHE B 455 56.428 26.824 -1.385 1.00 67.01 ATOM 101 C PHE B 455 55.593 26.308 -0.237 1.00 66.54 ATOM 102 O PHE B 455 54.523 26.855 0.037 1.00 66.56 ATOM 103 CB PHE B 455 57.117 28.128 -0.947 1.00 66.98 ATOM 104 N GLU B 456 56.052 25.249 0.409 1.00 65.93 ATOM 105 CA GLU B 456 55.338 24.726 1.569 1.00 65.45 ATOM 106 C GLU B 456 56.243 23.905 2.454 1.00 64.94 ATOM 107 O GLU B 456 57.194 23.283 1.985 1.00 64.94 ATOM 108 CB GLU B 456 54.111 23.886 1.162 1.00 65.45 ATOM 109 N CYS B 457 55.945 23.886 3.741 1.00 64.30 ATOM 110 CA CYS B 457 56.668 23.030 4.674 1.00 63.77 ATOM 111 C CYS B 457 58.171 23.166 4.612 1.00 63.71 ATOM 112 O CYS B 457 58.885 22.175 4.638 1.00 63.68 ATOM 113 CB CYS B 457 56.272 21.607 4.452 1.00 63.51 ATOM 114 N GLY B 458 58.657 24.393 4.492 1.00 63.58 ATOM 115 CA GLY B 458 60.091 24.655 4.550 1.00 63.52 ATOM 116 C GLY B 458 60.931 24.428 3.317 1.00 63.45 ATOM 117 O GLY B 458 62.157 24.578 3.419 1.00 63.47 ATOM 118 N VAL B 459 60.321 23.978 2.221 1.00 63.38 ATOM 119 CA VAL B 459 61.023 23.741 0.963 1.00 63.34 ATOM 120 C VAL B 459 60.223 24.318 -0.201 1.00 63.34 ATOM 121 O VAL B 459 59.008 24.524 -0.102 1.00 63.37 ATOM 122 CB VAL B 459 61.319 22.241 0.721 1.00 63.32 ATOM 123 N CYS B 460 60.874 24.521 -1.339 1.00 63.31 ATOM 124 CA CYS B 460 60.104 25.002 -2.473 1.00 63.33 ATOM 125 C CYS B 460 59.450 23.874 -3.241 1.00 62.92 ATOM 126 O CYS B 460 59.964 22.754 -3.266 1.00 62.90 ATOM 127 CB CYS B 460 60.984 25.813 -3.402 1.00 63.54 ATOM 128 N ARG B 461 58.342 24.185 -3.909 1.00 62.53 ATOM 129 CA ARG B 461 57.635 23.232 -4.756 1.00 62.18 ATOM 130 C ARG B 461 57.197 23.779 -6.111 1.00 61.88 ATOM 131 O ARG B 461 56.082 24.292 -6.268 1.00 62.02 ATOM 132 CB ARG B 461 56.396 22.682 -4.056 1.00 62.14 ATOM 133 N CYS B 462 58.059 23.676 -7.101 1.00 61.41 ATOM 134 CA CYS B 462 57.694 24.144 -8.427 1.00 60.97 ATOM 135 C CYS B 462 56.743 23.164 -9.082 1.00 60.71 ATOM 136 O CYS B 462 57.018 21.965 -9.122 1.00 60.61 ATOM 137 CB CYS B 462 58.923 24.363 -9.272 1.00 60.89 ATOM 138 N GLY B 463 55.636 23.685 -9.599 1.00 60.41 ATOM 139 CA GLY B 463 54.626 22.881 -10.260 1.00 60.17 ATOM 140 C GLY B 463 54.931 22.751 -11.749 1.00 59.93 ATOM 141 O GLY B 463 56.009 23.162 -12.202 1.00 59.92 ATOM 142 N PRO B 464 53.991 22.218 -12.529 1.00 59.63 ATOM 143 CA PRO B 464 54.108 21.975 -13.951 1.00 59.44 ATOM 144 C PRO B 464 54.528 23.243 -14.667 1.00 59.24 ATOM 145 O PRO B 464 54.010 24.324 -14.395 1.00 59.22 ATOM 146 CB PRO B 464 52.689 21.552 -14.330 1.00 59.45 ATOM 147 N GLY B 465 55.471 23.085 -15.587 1.00 59.01 ATOM 148 CA GLY B 465 56.041 24.169 -16.372 1.00 58.84 ATOM 149 C GLY B 465 57.328 24.692 -15.730 1.00 58.69 ATOM 150 O GLY B 465 58.118 25.370 -16.382 1.00 58.67 ATOM 151 N TRP B 466 57.538 24.393 -14.447 1.00 58.54 ATOM 152 CA TRP B 466 58.751 24.813 -13.767 1.00 58.42 ATOM 153 C TRP B 466 59.524 23.648 -13.171 1.00 58.37 ATOM 154 O TRP B 466 60.738 23.605 -13.320 1.00 58.35 ATOM 155 CB TRP B 466 58.398 25.883 -12.758 1.00 58.37 ATOM 156 N LEU B 467 58.791 22.698 -12.566 1.00 58.36 ATOM 157 CA LEU B 467 59.267 21.476 -11.888 1.00 58.36 ATOM 158 C LEU B 467 60.776 21.472 -11.554 1.00 58.35 ATOM 159 O LEU B 467 61.316 22.460 -11.041 1.00 58.35 ATOM 160 CB LEU B 467 58.907 20.251 -12.770 1.00 58.37 ATOM 161 N GLY B 468 61.442 20.333 -11.783 1.00 58.30 ATOM 162 CA GLY B 468 62.860 20.200 -11.492 1.00 58.26 ATOM 163 C GLY B 468 63.080 19.836 -10.034 1.00 58.27 ATOM 164 O GLY B 468 62.123 19.784 -9.253 1.00 58.29 ATOM 165 N SER B 469 64.343 19.573 -9.652 1.00 58.27 ATOM 166 CA SER B 469 64.637 19.231 -8.264 1.00 58.25 ATOM 167 C SER B 469 64.337 20.398 -7.340 1.00 58.31 ATOM 168 O SER B 469 63.982 20.206 -6.175 1.00 58.24 ATOM 169 CB SER B 469 66.095 18.865 -8.110 1.00 58.22 ATOM 170 N GLN B 470 64.476 21.615 -7.861 1.00 58.42 ATOM 171 CA GLN B 470 64.151 22.809 -7.115 1.00 58.49 ATOM 172 C GLN B 470 63.303 23.723 -7.987 1.00 58.58 ATOM 173 O GLN B 470 62.106 23.879 -7.757 1.00 58.57 ATOM 174 CB GLN B 470 65.417 23.537 -6.658 1.00 58.48 ATOM 175 N CYS B 471 63.913 24.242 -9.054 1.00 58.74 ATOM 176 CA CYS B 471 63.255 25.139 -9.999 1.00 58.72 ATOM 177 C CYS B 471 63.982 25.115 -11.335 1.00 58.55 ATOM 178 O CYS B 471 64.770 26.017 -11.637 1.00 58.50 ATOM 179 CB CYS B 471 63.228 26.563 -9.438 1.00 58.80 ATOM 180 N GLU B 472 63.808 24.036 -12.083 1.00 58.39 ATOM 181 CA GLU B 472 64.610 23.851 -13.298 1.00 58.27 ATOM 182 C GLU B 472 64.025 22.894 -14.327 1.00 58.13 ATOM 183 O GLU B 472 63.253 22.002 -13.999 1.00 58.10 ATOM 184 CB GLU B 472 66.004 23.358 -12.907 1.00 58.29 ATOM 185 N CYS B 473 64.493 23.009 -15.570 1.00 57.94 ATOM 186 CA CYS B 473 64.111 22.073 -16.631 1.00 57.78 ATOM 187 C CYS B 473 62.604 22.071 -16.890 1.00 57.61 ATOM 188 O CYS B 473 61.968 21.009 -16.867 1.00 57.58 ATOM 189 CB CYS B 473 64.525 20.660 -16.235 1.00 57.78 ATOM 190 N SER B 474 62.055 23.283 -17.124 1.00 57.42 ATOM 191 CA SER B 474 60.623 23.527 -17.339 1.00 57.28 ATOM 192 C SER B 474 59.920 22.442 -18.140 1.00 57.18 ATOM 193 O SER B 474 59.017 21.769 -17.638 1.00 57.14 ATOM 194 CB SER B 474 60.480 24.807 -18.132 1.00 57.26 ATOM 195 N GLU B 475 60.347 22.235 -19.375 1.00 57.11 ATOM 196 CA GLU B 475 59.766 21.173 -20.189 1.00 57.05 ATOM 197 C GLU B 475 60.883 20.254 -20.622 1.00 57.00 ATOM 198 O GLU B 475 61.414 20.379 -21.716 1.00 56.99 ATOM 199 CB GLU B 475 58.983 21.749 -21.375 1.00 57.04 ATOM 200 N GLU B 476 61.224 19.319 -19.753 1.00 56.92 ATOM 201 CA GLU B 476 62.372 18.442 -19.924 1.00 56.85 ATOM 202 C GLU B 476 63.508 19.263 -20.553 1.00 56.77 ATOM 203 O GLU B 476 63.983 20.190 -19.916 1.00 56.75 ATOM 204 CB GLU B 476 61.998 17.200 -20.732 1.00 56.88 ATOM 205 N ASP B 477 64.027 18.891 -21.736 1.00 56.68 ATOM 206 CA ASP B 477 65.054 19.625 -22.549 1.00 56.62 ATOM 207 C ASP B 477 66.398 20.067 -21.924 1.00 56.57 ATOM 208 O ASP B 477 67.342 20.411 -22.636 1.00 56.54 ATOM 209 CB ASP B 477 64.431 20.890 -23.147 1.00 56.61 TER