HEADER TOXIN 31-DEC-69 7N95 TITLE state 1 of TcdB and FZD2 at pH5 COMPND MOL_ID: 2; COMPND 2 MOLECULE: Toxin B; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.22.-; COMPND 5 ENGINEERED: YES; EXPDTA ELECTRON MICROSCOPY DBREF 7N95 A 1 2366 UNP P18177 TCDB_CLODI 1 2366 SEQRES 1 A 90 SER LEU VAL ASN ARG LYS GLN LEU GLU LYS MET ALA ASN SEQRES 2 A 90 VAL ARG PHE ARG THR GLN GLU ASP GLU TYR VAL ALA ILE SEQRES 3 A 90 LEU ASP ALA LEU GLU GLU TYR HIS ASN MET SER GLU ASN SEQRES 4 A 90 THR VAL VAL GLU LYS TYR LEU LYS LEU LYS ASP ILE ASN SEQRES 5 A 90 SER LEU THR ASP ILE TYR ILE ASP THR TYR LYS LYS SER SEQRES 6 A 90 GLY ARG ASN LYS ALA LEU LYS LYS PHE LYS GLU TYR LEU SEQRES 7 A 90 VAL THR GLU VAL LEU GLU LEU LYS ASN ASN ASN LEU ATOM 1 N SER A 2 254.958 242.122 232.396 1.00133.53 ATOM 2 CA SER A 2 254.011 243.216 232.576 1.00133.53 ATOM 3 C SER A 2 254.702 244.427 233.189 1.00133.53 ATOM 4 N LEU A 3 253.906 245.374 233.686 1.00116.54 ATOM 5 CA LEU A 3 254.475 246.595 234.241 1.00116.54 ATOM 6 C LEU A 3 255.261 246.333 235.518 1.00116.54 ATOM 7 N VAL A 4 254.978 245.232 236.215 1.00122.98 ATOM 8 CA VAL A 4 255.723 244.896 237.422 1.00122.98 ATOM 9 C VAL A 4 257.148 244.514 237.043 1.00122.98 ATOM 10 N ASN A 5 258.117 245.009 237.809 1.00127.83 ATOM 11 CA ASN A 5 259.521 244.815 237.482 1.00127.83 ATOM 12 C ASN A 5 260.048 243.525 238.111 1.00127.83 ATOM 13 N ARG A 6 261.371 243.360 238.083 1.00132.51 ATOM 14 CA ARG A 6 261.996 242.081 238.403 1.00132.51 ATOM 15 C ARG A 6 261.982 241.800 239.901 1.00132.51 ATOM 16 N LYS A 7 262.584 242.693 240.692 1.00128.73 ATOM 17 CA LYS A 7 262.743 242.422 242.116 1.00128.73 ATOM 18 C LYS A 7 261.400 242.280 242.816 1.00128.73 ATOM 19 N GLN A 8 260.373 242.986 242.342 1.00130.81 ATOM 20 CA GLN A 8 259.041 242.806 242.907 1.00130.81 ATOM 21 C GLN A 8 258.565 241.374 242.719 1.00130.81 ATOM 22 N LEU A 9 258.706 240.846 241.502 1.00131.59 ATOM 23 CA LEU A 9 258.287 239.474 241.245 1.00131.59 ATOM 24 C LEU A 9 259.119 238.495 242.059 1.00131.59 ATOM 25 N GLU A 10 260.416 238.773 242.206 1.00135.29 ATOM 26 CA GLU A 10 261.262 237.915 243.029 1.00135.29 ATOM 27 C GLU A 10 260.771 237.884 244.470 1.00135.29 ATOM 28 N LYS A 11 260.461 239.055 245.031 1.00126.50 ATOM 29 CA LYS A 11 259.943 239.092 246.393 1.00126.50 ATOM 30 C LYS A 11 258.587 238.414 246.487 1.00126.50 ATOM 31 N MET A 12 257.809 238.450 245.409 1.00125.80 ATOM 32 CA MET A 12 256.440 237.962 245.478 1.00125.80 ATOM 33 C MET A 12 256.383 236.442 245.554 1.00125.80 ATOM 34 N ALA A 13 257.398 235.753 245.039 1.00115.93 ATOM 35 CA ALA A 13 257.375 234.300 244.906 1.00115.93 ATOM 36 C ALA A 13 258.439 233.613 245.758 1.00115.93 ATOM 37 N ASN A 14 258.655 234.095 246.978 1.00124.62 ATOM 38 CA ASN A 14 259.590 233.453 247.893 1.00124.62 ATOM 39 C ASN A 14 258.888 232.385 248.718 1.00124.62 ATOM 40 N VAL A 15 259.574 231.264 248.919 1.00127.53 ATOM 41 CA VAL A 15 259.094 230.218 249.813 1.00127.53 ATOM 42 C VAL A 15 260.283 229.483 250.421 1.00127.53 ATOM 43 N ARG A 16 260.312 229.410 251.748 1.00135.42 ATOM 44 CA ARG A 16 261.408 228.760 252.451 1.00135.42 ATOM 45 C ARG A 16 261.381 227.253 252.217 1.00135.42 ATOM 46 N PHE A 17 262.571 226.646 252.255 1.00131.85 ATOM 47 CA PHE A 17 262.774 225.227 251.951 1.00131.85 ATOM 48 C PHE A 17 262.523 224.929 250.474 1.00131.85 ATOM 49 N ARG A 18 262.946 225.838 249.598 1.00136.99 ATOM 50 CA ARG A 18 262.859 225.632 248.155 1.00136.99 ATOM 51 C ARG A 18 264.213 225.926 247.529 1.00136.99 ATOM 52 N THR A 19 264.839 224.903 246.956 1.00138.23 ATOM 53 CA THR A 19 266.032 225.123 246.151 1.00138.23 ATOM 54 C THR A 19 265.636 225.852 244.874 1.00138.23 ATOM 55 N GLN A 20 266.435 226.836 244.475 1.00135.92 ATOM 56 CA GLN A 20 266.056 227.651 243.332 1.00135.92 ATOM 57 C GLN A 20 266.236 226.851 242.047 1.00135.92 ATOM 58 N GLU A 21 265.258 226.949 241.154 1.00137.47 ATOM 59 CA GLU A 21 265.206 226.105 239.970 1.00137.47 ATOM 60 C GLU A 21 265.465 226.940 238.718 1.00137.47 ATOM 61 N ASP A 22 266.086 226.310 237.714 1.00134.05 ATOM 62 CA ASP A 22 266.567 227.048 236.547 1.00134.05 ATOM 63 C ASP A 22 265.430 227.571 235.676 1.00134.05 ATOM 64 N GLU A 23 264.263 226.928 235.712 1.00126.13 ATOM 65 CA GLU A 23 263.127 227.475 234.981 1.00126.13 ATOM 66 C GLU A 23 262.774 228.861 235.498 1.00126.13 ATOM 67 N TYR A 24 262.752 229.028 236.820 1.00132.62 ATOM 68 CA TYR A 24 262.522 230.349 237.391 1.00132.62 ATOM 69 C TYR A 24 263.577 231.336 236.907 1.00132.62 ATOM 70 N VAL A 25 264.812 230.863 236.705 1.00138.94 ATOM 71 CA VAL A 25 265.824 231.697 236.065 1.00138.94 ATOM 72 C VAL A 25 265.356 232.117 234.682 1.00138.94 ATOM 73 N ALA A 26 264.757 231.190 233.932 1.00130.17 ATOM 74 CA ALA A 26 264.281 231.533 232.595 1.00130.17 ATOM 75 C ALA A 26 263.237 232.642 232.650 1.00130.17 ATOM 76 N ILE A 27 262.246 232.499 233.535 1.00134.40 ATOM 77 CA ILE A 27 261.235 233.552 233.670 1.00134.40 ATOM 78 C ILE A 27 261.886 234.882 234.033 1.00134.40 ATOM 79 N LEU A 28 262.746 234.885 235.056 1.00137.26 ATOM 80 CA LEU A 28 263.261 236.158 235.542 1.00137.26 ATOM 81 C LEU A 28 264.168 236.815 234.509 1.00137.26 ATOM 82 N ASP A 29 264.952 236.019 233.778 1.00143.99 ATOM 83 CA ASP A 29 265.693 236.560 232.645 1.00143.99 ATOM 84 C ASP A 29 264.741 237.206 231.653 1.00143.99 ATOM 85 N ALA A 30 263.813 236.421 231.094 1.00139.66 ATOM 86 CA ALA A 30 262.951 236.940 230.041 1.00139.66 ATOM 87 C ALA A 30 262.323 238.255 230.471 1.00139.66 ATOM 88 N LEU A 31 261.897 238.333 231.736 1.00141.84 ATOM 89 CA LEU A 31 261.392 239.597 232.260 1.00141.84 ATOM 90 C LEU A 31 262.452 240.693 232.214 1.00141.84 ATOM 91 N GLU A 32 263.686 240.381 232.629 1.00143.87 ATOM 92 CA GLU A 32 264.671 241.450 232.780 1.00143.87 ATOM 93 C GLU A 32 265.061 242.042 231.428 1.00143.87 ATOM 94 N GLU A 33 265.209 241.209 230.388 1.00146.95 ATOM 95 CA GLU A 33 265.442 241.837 229.080 1.00146.95 ATOM 96 C GLU A 33 264.170 242.445 228.504 1.00146.95 ATOM 97 N TYR A 34 262.991 241.999 228.945 1.00145.17 ATOM 98 CA TYR A 34 261.776 242.645 228.465 1.00145.17 ATOM 99 C TYR A 34 261.680 244.081 228.962 1.00145.17 ATOM 100 N HIS A 35 262.018 244.310 230.234 1.00152.34 ATOM 101 CA HIS A 35 261.743 245.611 230.839 1.00152.34 ATOM 102 C HIS A 35 262.518 246.729 230.151 1.00152.34 ATOM 103 N ASN A 36 263.794 246.497 229.847 1.00148.46 ATOM 104 CA ASN A 36 264.684 247.542 229.361 1.00148.46 ATOM 105 C ASN A 36 264.653 247.705 227.845 1.00148.46 ATOM 106 N MET A 37 263.574 247.294 227.187 1.00151.34 ATOM 107 CA MET A 37 263.457 247.387 225.738 1.00151.34 ATOM 108 C MET A 37 262.502 248.517 225.381 1.00151.34 ATOM 109 N SER A 38 262.952 249.428 224.514 1.00152.71 ATOM 110 CA SER A 38 262.150 250.582 224.128 1.00152.71 ATOM 111 C SER A 38 262.183 250.860 222.629 1.00152.71 ATOM 112 N GLU A 39 262.743 249.963 221.829 1.00153.23 ATOM 113 CA GLU A 39 262.811 250.128 220.384 1.00153.23 ATOM 114 C GLU A 39 261.981 249.045 219.704 1.00153.23 ATOM 115 N ASN A 40 261.918 249.129 218.372 1.00150.38 ATOM 116 CA ASN A 40 261.101 248.264 217.525 1.00150.38 ATOM 117 C ASN A 40 259.616 248.548 217.718 1.00150.38 ATOM 118 N THR A 41 258.794 248.092 216.778 1.00143.18 ATOM 119 CA THR A 41 257.371 248.379 216.806 1.00143.18 ATOM 120 C THR A 41 256.664 247.475 217.812 1.00143.18 ATOM 121 N VAL A 42 255.331 247.509 217.786 1.00137.65 ATOM 122 CA VAL A 42 254.550 246.794 218.789 1.00137.65 ATOM 123 C VAL A 42 254.571 245.291 218.550 1.00137.65 ATOM 124 N VAL A 43 254.786 244.861 217.305 1.00139.61 ATOM 125 CA VAL A 43 254.672 243.439 216.992 1.00139.61 ATOM 126 C VAL A 43 255.757 242.640 217.706 1.00139.61 ATOM 127 N GLU A 44 256.966 243.196 217.807 1.00148.61 ATOM 128 CA GLU A 44 258.017 242.517 218.558 1.00148.61 ATOM 129 C GLU A 44 257.635 242.381 220.025 1.00148.61 ATOM 130 N LYS A 45 257.046 243.431 220.598 1.00133.69 ATOM 131 CA LYS A 45 256.567 243.349 221.971 1.00133.69 ATOM 132 C LYS A 45 255.557 242.223 222.124 1.00133.69 ATOM 133 N TYR A 46 254.605 242.136 221.194 1.00135.86 ATOM 134 CA TYR A 46 253.572 241.113 221.307 1.00135.86 ATOM 135 C TYR A 46 254.164 239.715 221.187 1.00135.86 ATOM 136 N LEU A 47 255.104 239.520 220.260 1.00132.03 ATOM 137 CA LEU A 47 255.735 238.209 220.124 1.00132.03 ATOM 138 C LEU A 47 256.511 237.830 221.379 1.00132.03 ATOM 139 N LYS A 48 257.210 238.787 221.980 1.00134.48 ATOM 140 CA LYS A 48 258.017 238.431 223.138 1.00134.48 ATOM 141 C LYS A 48 257.144 238.198 224.368 1.00134.48 ATOM 142 N LEU A 49 256.010 238.896 224.459 1.00129.42 ATOM 143 CA LEU A 49 255.017 238.553 225.471 1.00129.42 ATOM 144 C LEU A 49 254.439 237.163 225.225 1.00129.42 ATOM 145 N LYS A 50 254.219 236.810 223.958 1.00133.63 ATOM 146 CA LYS A 50 253.842 235.443 223.610 1.00133.63 ATOM 147 C LYS A 50 254.836 234.454 224.198 1.00133.63 ATOM 148 N ASP A 51 256.126 234.737 224.015 1.00139.99 ATOM 149 CA ASP A 51 257.166 233.833 224.497 1.00139.99 ATOM 150 C ASP A 51 257.135 233.704 226.018 1.00139.99 ATOM 151 N ILE A 52 257.026 234.831 226.728 1.00123.42 ATOM 152 CA ILE A 52 257.045 234.763 228.190 1.00123.42 ATOM 153 C ILE A 52 255.826 234.010 228.710 1.00123.42 ATOM 154 N ASN A 53 254.648 234.277 228.138 1.00132.58 ATOM 155 CA ASN A 53 253.450 233.563 228.565 1.00132.58 ATOM 156 C ASN A 53 253.605 232.070 228.316 1.00132.58 ATOM 157 N SER A 54 254.127 231.702 227.144 1.00135.69 ATOM 158 CA SER A 54 254.311 230.290 226.838 1.00135.69 ATOM 159 C SER A 54 255.225 229.629 227.857 1.00135.69 ATOM 160 N LEU A 55 256.400 230.216 228.095 1.00129.17 ATOM 161 CA LEU A 55 257.360 229.563 228.980 1.00129.17 ATOM 162 C LEU A 55 256.839 229.477 230.409 1.00129.17 ATOM 163 N THR A 56 256.075 230.475 230.859 1.00127.48 ATOM 164 CA THR A 56 255.413 230.339 232.152 1.00127.48 ATOM 165 C THR A 56 254.438 229.168 232.146 1.00127.48 ATOM 166 N ASP A 57 253.728 228.970 231.031 1.00136.92 ATOM 167 CA ASP A 57 252.806 227.840 230.943 1.00136.92 ATOM 168 C ASP A 57 253.550 226.513 231.068 1.00136.92 ATOM 169 N ILE A 58 254.669 226.364 230.354 1.00133.44 ATOM 170 CA ILE A 58 255.465 225.143 230.510 1.00133.44 ATOM 171 C ILE A 58 255.927 224.980 231.952 1.00133.44 ATOM 172 N TYR A 59 256.381 226.066 232.584 1.00137.37 ATOM 173 CA TYR A 59 256.839 225.950 233.967 1.00137.37 ATOM 174 C TYR A 59 255.728 225.427 234.866 1.00137.37 ATOM 175 N ILE A 60 254.523 225.980 234.724 1.00134.07 ATOM 176 CA ILE A 60 253.396 225.501 235.519 1.00134.07 ATOM 177 C ILE A 60 253.120 224.036 235.229 1.00134.07 ATOM 178 N ASP A 61 253.274 223.621 233.971 1.00133.55 ATOM 179 CA ASP A 61 253.020 222.226 233.627 1.00133.55 ATOM 180 C ASP A 61 254.047 221.301 234.274 1.00133.55 ATOM 181 N THR A 62 255.299 221.751 234.388 1.00127.40 ATOM 182 CA THR A 62 256.356 220.877 234.894 1.00127.40 ATOM 183 C THR A 62 256.097 220.453 236.334 1.00127.40 ATOM 184 N TYR A 63 255.798 221.407 237.207 1.00125.21 ATOM 185 CA TYR A 63 255.609 221.139 238.631 1.00125.21 ATOM 186 C TYR A 63 254.129 221.296 238.961 1.00125.21 ATOM 187 N LYS A 64 253.420 220.168 239.036 1.00127.38 ATOM 188 CA LYS A 64 251.994 220.209 239.342 1.00127.38 ATOM 189 C LYS A 64 251.750 220.749 240.743 1.00127.38 ATOM 190 N LYS A 65 252.555 220.314 241.701 1.00123.35 ATOM 191 CA LYS A 65 252.286 220.479 243.121 1.00123.35 ATOM 192 C LYS A 65 253.344 221.428 243.676 1.00123.35 ATOM 193 N SER A 66 253.085 222.731 243.574 1.00114.33 ATOM 194 CA SER A 66 254.057 223.730 244.004 1.00114.33 ATOM 195 C SER A 66 253.319 225.002 244.384 1.00114.33 ATOM 196 N GLY A 67 253.657 225.561 245.546 1.00116.51 ATOM 197 CA GLY A 67 252.950 226.725 246.046 1.00116.51 ATOM 198 C GLY A 67 253.286 228.018 245.339 1.00116.51 ATOM 199 N ARG A 68 254.350 228.035 244.539 1.00125.01 ATOM 200 CA ARG A 68 254.717 229.263 243.846 1.00125.01 ATOM 201 C ARG A 68 253.739 229.618 242.735 1.00125.01 ATOM 202 N ASN A 69 252.912 228.667 242.296 1.00125.39 ATOM 203 CA ASN A 69 252.010 228.923 241.178 1.00125.39 ATOM 204 C ASN A 69 250.977 229.992 241.515 1.00125.39 ATOM 205 N LYS A 70 250.621 230.113 242.797 1.00114.76 ATOM 206 CA LYS A 70 249.635 231.104 243.207 1.00114.76 ATOM 207 C LYS A 70 250.079 232.515 242.862 1.00114.76 ATOM 208 N ALA A 71 251.382 232.741 242.729 1.00119.15 ATOM 209 CA ALA A 71 251.898 234.010 242.242 1.00119.15 ATOM 210 C ALA A 71 251.975 234.067 240.725 1.00119.15 ATOM 211 N LEU A 72 252.362 232.960 240.088 1.00119.65 ATOM 212 CA LEU A 72 252.482 232.945 238.636 1.00119.65 ATOM 213 C LEU A 72 251.151 233.221 237.954 1.00119.65 ATOM 214 N LYS A 73 250.048 232.719 238.504 1.00116.10 ATOM 215 CA LYS A 73 248.779 232.941 237.822 1.00116.10 ATOM 216 C LYS A 73 248.372 234.409 237.858 1.00116.10 ATOM 217 N LYS A 74 248.403 235.037 239.036 1.00121.42 ATOM 218 CA LYS A 74 248.064 236.453 239.064 1.00121.42 ATOM 219 C LYS A 74 249.063 237.267 238.256 1.00121.42 ATOM 220 N PHE A 75 250.295 236.772 238.112 1.00122.98 ATOM 221 CA PHE A 75 251.191 237.363 237.127 1.00122.98 ATOM 222 C PHE A 75 250.605 237.258 235.728 1.00122.98 ATOM 223 N LYS A 76 249.966 236.131 235.417 1.00114.71 ATOM 224 CA LYS A 76 249.369 235.971 234.093 1.00114.71 ATOM 225 C LYS A 76 248.265 236.999 233.853 1.00114.71 ATOM 226 N GLU A 77 247.385 237.196 234.837 1.00123.02 ATOM 227 CA GLU A 77 246.376 238.243 234.650 1.00123.02 ATOM 228 C GLU A 77 247.006 239.632 234.569 1.00123.02 ATOM 229 N TYR A 78 248.087 239.880 235.312 1.00118.41 ATOM 230 CA TYR A 78 248.767 241.164 235.156 1.00118.41 ATOM 231 C TYR A 78 249.304 241.328 233.740 1.00118.41 ATOM 232 N LEU A 79 249.812 240.243 233.153 1.00124.58 ATOM 233 CA LEU A 79 250.267 240.285 231.766 1.00124.58 ATOM 234 C LEU A 79 249.125 240.634 230.823 1.00124.58 ATOM 235 N VAL A 80 247.963 240.017 231.031 1.00113.11 ATOM 236 CA VAL A 80 246.814 240.287 230.168 1.00113.11 ATOM 237 C VAL A 80 246.398 241.749 230.283 1.00113.11 ATOM 238 N THR A 81 246.352 242.267 231.511 1.00120.77 ATOM 239 CA THR A 81 245.990 243.667 231.700 1.00120.77 ATOM 240 C THR A 81 247.005 244.593 231.046 1.00120.77 ATOM 241 N GLU A 82 248.291 244.251 231.132 1.00124.31 ATOM 242 CA GLU A 82 249.315 245.081 230.509 1.00124.31 ATOM 243 C GLU A 82 249.161 245.099 228.995 1.00124.31 ATOM 244 N VAL A 83 248.921 243.933 228.390 1.00118.11 ATOM 245 CA VAL A 83 248.829 243.881 226.932 1.00118.11 ATOM 246 C VAL A 83 247.552 244.559 226.452 1.00118.11 ATOM 247 N LEU A 84 246.494 244.526 227.264 1.00118.22 ATOM 248 CA LEU A 84 245.258 245.204 226.883 1.00118.22 ATOM 249 C LEU A 84 245.469 246.708 226.767 1.00118.22 ATOM 250 N GLU A 85 246.100 247.312 227.772 1.00126.72 ATOM 251 CA GLU A 85 246.254 248.761 227.807 1.00126.72 ATOM 252 C GLU A 85 247.397 249.260 226.936 1.00126.72 ATOM 253 N LEU A 86 248.274 248.368 226.475 1.00118.02 ATOM 254 CA LEU A 86 249.412 248.798 225.670 1.00118.02 ATOM 255 C LEU A 86 248.967 249.425 224.355 1.00118.02 ATOM 256 N LYS A 87 247.761 249.099 223.894 1.00120.30 ATOM 257 CA LYS A 87 247.314 249.565 222.586 1.00120.30 ATOM 258 C LYS A 87 246.968 251.050 222.605 1.00120.30 ATOM 259 N ASN A 88 246.454 251.546 223.730 1.00116.81 ATOM 260 CA ASN A 88 245.816 252.859 223.741 1.00116.81 ATOM 261 C ASN A 88 246.811 253.990 223.504 1.00116.81 ATOM 262 N ASN A 89 248.018 253.882 224.063 1.00121.71 ATOM 263 CA ASN A 89 248.912 255.036 224.101 1.00121.71 ATOM 264 C ASN A 89 249.361 255.474 222.711 1.00121.71 ATOM 265 N ASN A 90 249.637 254.531 221.816 1.00125.63 ATOM 266 CA ASN A 90 250.217 254.830 220.513 1.00125.63 ATOM 267 C ASN A 90 249.166 254.687 219.422 1.00125.63 ATOM 268 N LEU A 91 249.138 255.651 218.504 1.00125.11 ATOM 269 CA LEU A 91 248.229 255.639 217.369 1.00125.11 ATOM 270 C LEU A 91 249.028 255.829 216.088 1.00125.11 TER