HEADER HYDROLASE 31-DEC-69 7N9R TITLE state 4 of TcdB and FZD2 at pH5 COMPND MOL_ID: 1; COMPND 2 MOLECULE: Toxin B; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.22.-; COMPND 5 ENGINEERED: YES; EXPDTA ELECTRON MICROSCOPY DBREF 7N9R 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 2 252.313 248.800 235.703 1.00389.54 ATOM 2 CA SER A 2 253.756 248.693 235.531 1.00389.54 ATOM 3 C SER A 2 254.256 247.312 235.937 1.00389.54 ATOM 4 N LEU A 3 255.382 246.906 235.362 1.00353.30 ATOM 5 CA LEU A 3 255.935 245.592 235.639 1.00353.30 ATOM 6 C LEU A 3 256.693 245.588 236.965 1.00353.30 ATOM 7 N VAL A 4 256.808 244.399 237.544 1.00371.21 ATOM 8 CA VAL A 4 257.405 244.207 238.859 1.00371.21 ATOM 9 C VAL A 4 258.820 243.669 238.694 1.00371.21 ATOM 10 N ASN A 5 259.672 243.956 239.677 1.00328.98 ATOM 11 CA ASN A 5 261.050 243.491 239.678 1.00328.98 ATOM 12 C ASN A 5 261.158 242.158 240.419 1.00328.98 ATOM 13 N ARG A 6 262.395 241.762 240.727 1.00311.66 ATOM 14 CA ARG A 6 262.652 240.470 241.353 1.00311.66 ATOM 15 C ARG A 6 262.059 240.394 242.752 1.00311.66 ATOM 16 N LYS A 7 262.588 241.212 243.663 1.00313.10 ATOM 17 CA LYS A 7 262.464 240.943 245.091 1.00313.10 ATOM 18 C LYS A 7 261.009 240.772 245.504 1.00313.10 ATOM 19 N GLN A 8 260.117 241.578 244.929 1.00341.04 ATOM 20 CA GLN A 8 258.698 241.390 245.197 1.00341.04 ATOM 21 C GLN A 8 258.243 240.011 244.750 1.00341.04 ATOM 22 N LEU A 9 258.698 239.568 243.576 1.00327.45 ATOM 23 CA LEU A 9 258.304 238.250 243.090 1.00327.45 ATOM 24 C LEU A 9 258.823 237.140 243.991 1.00327.45 ATOM 25 N GLU A 10 260.107 237.181 244.362 1.00345.95 ATOM 26 CA GLU A 10 260.604 236.099 245.212 1.00345.95 ATOM 27 C GLU A 10 259.906 236.083 246.565 1.00345.95 ATOM 28 N LYS A 11 259.661 237.250 247.167 1.00385.53 ATOM 29 CA LYS A 11 258.943 237.247 248.440 1.00385.53 ATOM 30 C LYS A 11 257.508 236.758 248.273 1.00385.53 ATOM 31 N MET A 12 256.848 237.128 247.174 1.00396.33 ATOM 32 CA MET A 12 255.532 236.563 246.891 1.00396.33 ATOM 33 C MET A 12 255.635 235.083 246.540 1.00396.33 ATOM 34 N ALA A 13 256.586 234.723 245.681 1.00349.88 ATOM 35 CA ALA A 13 256.800 233.326 245.310 1.00349.88 ATOM 36 C ALA A 13 257.924 232.740 246.163 1.00349.88 ATOM 37 N ASN A 14 257.667 232.702 247.468 1.00344.89 ATOM 38 CA ASN A 14 258.635 232.232 248.450 1.00344.89 ATOM 39 C ASN A 14 258.102 230.978 249.123 1.00344.89 ATOM 40 N VAL A 15 258.923 229.933 249.152 1.00290.29 ATOM 41 CA VAL A 15 258.609 228.700 249.860 1.00290.29 ATOM 42 C VAL A 15 259.808 228.335 250.723 1.00290.29 ATOM 43 N ARG A 16 259.541 227.967 251.974 1.00257.56 ATOM 44 CA ARG A 16 260.608 227.622 252.903 1.00257.56 ATOM 45 C ARG A 16 261.443 226.473 252.356 1.00257.56 ATOM 46 N PHE A 17 262.765 226.633 252.432 1.00215.43 ATOM 47 CA PHE A 17 263.748 225.658 251.949 1.00215.43 ATOM 48 C PHE A 17 263.325 225.037 250.620 1.00215.43 ATOM 49 N ARG A 18 262.935 225.900 249.686 1.00223.15 ATOM 50 CA ARG A 18 262.556 225.469 248.350 1.00223.15 ATOM 51 C ARG A 18 263.765 225.503 247.427 1.00223.15 ATOM 52 N THR A 19 263.866 224.497 246.564 1.00219.16 ATOM 53 CA THR A 19 264.966 224.436 245.615 1.00219.16 ATOM 54 C THR A 19 264.851 225.554 244.584 1.00219.16 ATOM 55 N GLN A 20 265.998 225.952 244.042 1.00213.21 ATOM 56 CA GLN A 20 266.044 226.988 243.017 1.00213.21 ATOM 57 C GLN A 20 265.694 226.365 241.672 1.00213.21 ATOM 58 N GLU A 21 264.564 226.775 241.104 1.00223.78 ATOM 59 CA GLU A 21 264.110 226.236 239.830 1.00223.78 ATOM 60 C GLU A 21 264.845 226.931 238.689 1.00223.78 ATOM 61 N ASP A 22 265.489 226.138 237.831 1.00255.17 ATOM 62 CA ASP A 22 266.232 226.699 236.707 1.00255.17 ATOM 63 C ASP A 22 265.312 227.449 235.754 1.00255.17 ATOM 64 N GLU A 23 264.146 226.871 235.453 1.00265.23 ATOM 65 CA GLU A 23 263.184 227.564 234.605 1.00265.23 ATOM 66 C GLU A 23 262.744 228.868 235.249 1.00265.23 ATOM 67 N TYR A 24 262.605 228.872 236.575 1.00285.62 ATOM 68 CA TYR A 24 262.279 230.103 237.284 1.00285.62 ATOM 69 C TYR A 24 263.365 231.152 237.084 1.00285.62 ATOM 70 N VAL A 25 264.632 230.741 237.157 1.00270.15 ATOM 71 CA VAL A 25 265.737 231.671 236.936 1.00270.15 ATOM 72 C VAL A 25 265.699 232.217 235.514 1.00270.15 ATOM 73 N ALA A 26 265.374 231.360 234.544 1.00279.77 ATOM 74 CA ALA A 26 265.241 231.824 233.167 1.00279.77 ATOM 75 C ALA A 26 264.121 232.849 233.045 1.00279.77 ATOM 76 N ILE A 27 262.999 232.597 233.722 1.00277.49 ATOM 77 CA ILE A 27 261.915 233.574 233.779 1.00277.49 ATOM 78 C ILE A 27 262.440 234.900 234.309 1.00277.49 ATOM 79 N LEU A 28 263.206 234.841 235.400 1.00288.99 ATOM 80 CA LEU A 28 263.703 236.060 236.029 1.00288.99 ATOM 81 C LEU A 28 264.568 236.852 235.058 1.00288.99 ATOM 82 N ASP A 29 265.546 236.177 234.448 1.00309.69 ATOM 83 CA ASP A 29 266.460 236.843 233.525 1.00309.69 ATOM 84 C ASP A 29 265.713 237.443 232.343 1.00309.69 ATOM 85 N ALA A 30 264.769 236.693 231.771 1.00286.59 ATOM 86 CA ALA A 30 263.934 237.249 230.715 1.00286.59 ATOM 87 C ALA A 30 263.183 238.478 231.208 1.00286.59 ATOM 88 N LEU A 31 262.837 238.504 232.496 1.00308.53 ATOM 89 CA LEU A 31 262.117 239.658 233.010 1.00308.53 ATOM 90 C LEU A 31 263.013 240.888 233.093 1.00308.53 ATOM 91 N GLU A 32 264.279 240.739 233.506 1.00307.29 ATOM 92 CA GLU A 32 265.153 241.913 233.414 1.00307.29 ATOM 93 C GLU A 32 265.375 242.296 231.957 1.00307.29 ATOM 94 N GLU A 33 265.427 241.303 231.064 1.00294.84 ATOM 95 CA GLU A 33 265.684 241.612 229.661 1.00294.84 ATOM 96 C GLU A 33 264.558 242.465 229.088 1.00294.84 ATOM 97 N TYR A 34 263.308 242.118 229.402 1.00261.89 ATOM 98 CA TYR A 34 262.195 243.004 229.068 1.00261.89 ATOM 99 C TYR A 34 262.303 244.345 229.784 1.00261.89 ATOM 100 N HIS A 35 262.580 244.325 231.089 1.00269.61 ATOM 101 CA HIS A 35 262.530 245.551 231.876 1.00269.61 ATOM 102 C HIS A 35 263.564 246.566 231.414 1.00269.61 ATOM 103 N ASN A 36 264.659 246.102 230.823 1.00287.24 ATOM 104 CA ASN A 36 265.772 246.959 230.438 1.00287.24 ATOM 105 C ASN A 36 265.803 247.210 228.934 1.00287.24 ATOM 106 N MET A 37 264.635 247.365 228.317 1.00267.79 ATOM 107 CA MET A 37 264.553 247.780 226.923 1.00267.79 ATOM 108 C MET A 37 264.120 249.237 226.858 1.00267.79 ATOM 109 N SER A 38 264.811 250.019 226.036 1.00256.11 ATOM 110 CA SER A 38 264.362 251.370 225.756 1.00256.11 ATOM 111 C SER A 38 263.098 251.330 224.904 1.00256.11 ATOM 112 N GLU A 39 262.442 252.481 224.800 1.00276.09 ATOM 113 CA GLU A 39 261.225 252.575 224.006 1.00276.09 ATOM 114 C GLU A 39 261.505 252.189 222.558 1.00276.09 ATOM 115 N ASN A 40 260.683 251.296 222.024 1.00261.70 ATOM 116 CA ASN A 40 260.821 250.838 220.648 1.00261.70 ATOM 117 C ASN A 40 259.438 250.423 220.158 1.00261.70 ATOM 118 N THR A 41 259.399 249.674 219.059 1.00241.53 ATOM 119 CA THR A 41 258.132 249.179 218.537 1.00241.53 ATOM 120 C THR A 41 257.413 248.336 219.582 1.00241.53 ATOM 121 N VAL A 42 256.098 248.538 219.687 1.00222.85 ATOM 122 CA VAL A 42 255.302 247.748 220.615 1.00222.85 ATOM 123 C VAL A 42 255.116 246.325 220.116 1.00222.85 ATOM 124 N VAL A 43 255.372 246.073 218.831 1.00232.41 ATOM 125 CA VAL A 43 255.263 244.716 218.305 1.00232.41 ATOM 126 C VAL A 43 256.282 243.806 218.975 1.00232.41 ATOM 127 N GLU A 44 257.515 244.291 219.132 1.00259.97 ATOM 128 CA GLU A 44 258.524 243.528 219.857 1.00259.97 ATOM 129 C GLU A 44 258.099 243.300 221.300 1.00259.97 ATOM 130 N LYS A 45 257.508 244.319 221.925 1.00227.87 ATOM 131 CA LYS A 45 256.996 244.170 223.282 1.00227.87 ATOM 132 C LYS A 45 255.974 243.043 223.362 1.00227.87 ATOM 133 N TYR A 46 255.006 243.041 222.444 1.00232.79 ATOM 134 CA TYR A 46 253.977 242.007 222.443 1.00232.79 ATOM 135 C TYR A 46 254.577 240.629 222.209 1.00232.79 ATOM 136 N LEU A 47 255.512 240.523 221.263 1.00232.51 ATOM 137 CA LEU A 47 256.119 239.227 220.981 1.00232.51 ATOM 138 C LEU A 47 256.892 238.709 222.185 1.00232.51 ATOM 139 N LYS A 48 257.594 239.595 222.893 1.00228.95 ATOM 140 CA LYS A 48 258.369 239.132 224.036 1.00228.95 ATOM 141 C LYS A 48 257.468 238.785 225.214 1.00228.95 ATOM 142 N LEU A 49 256.352 239.496 225.385 1.00219.49 ATOM 143 CA LEU A 49 255.368 239.054 226.368 1.00219.49 ATOM 144 C LEU A 49 254.769 237.705 225.997 1.00219.49 ATOM 145 N LYS A 50 254.571 237.448 224.704 1.00215.15 ATOM 146 CA LYS A 50 254.121 236.125 224.285 1.00215.15 ATOM 147 C LYS A 50 255.159 235.065 224.633 1.00215.15 ATOM 148 N ASP A 51 256.438 235.384 224.434 1.00218.59 ATOM 149 CA ASP A 51 257.501 234.467 224.835 1.00218.59 ATOM 150 C ASP A 51 257.485 234.236 226.342 1.00218.59 ATOM 151 N ILE A 52 257.230 235.293 227.115 1.00200.25 ATOM 152 CA ILE A 52 257.123 235.161 228.566 1.00200.25 ATOM 153 C ILE A 52 255.983 234.221 228.928 1.00200.25 ATOM 154 N ASN A 53 254.839 234.386 228.266 1.00212.04 ATOM 155 CA ASN A 53 253.711 233.497 228.513 1.00212.04 ATOM 156 C ASN A 53 254.072 232.055 228.190 1.00212.04 ATOM 157 N SER A 54 254.763 231.839 227.070 1.00228.06 ATOM 158 CA SER A 54 255.143 230.483 226.685 1.00228.06 ATOM 159 C SER A 54 256.085 229.859 227.707 1.00228.06 ATOM 160 N LEU A 55 257.096 230.611 228.144 1.00216.96 ATOM 161 CA LEU A 55 258.056 230.064 229.098 1.00216.96 ATOM 162 C LEU A 55 257.417 229.824 230.460 1.00216.96 ATOM 163 N THR A 56 256.498 230.695 230.878 1.00205.84 ATOM 164 CA THR A 56 255.767 230.430 232.110 1.00205.84 ATOM 165 C THR A 56 254.909 229.179 231.974 1.00205.84 ATOM 166 N ASP A 57 254.258 229.008 230.819 1.00236.31 ATOM 167 CA ASP A 57 253.480 227.798 230.585 1.00236.31 ATOM 168 C ASP A 57 254.366 226.570 230.706 1.00236.31 ATOM 169 N ILE A 58 255.570 226.635 230.139 1.00238.45 ATOM 170 CA ILE A 58 256.530 225.550 230.304 1.00238.45 ATOM 171 C ILE A 58 256.835 225.330 231.781 1.00238.45 ATOM 172 N TYR A 59 256.971 226.419 232.542 1.00253.88 ATOM 173 CA TYR A 59 257.293 226.292 233.962 1.00253.88 ATOM 174 C TYR A 59 256.214 225.525 234.718 1.00253.88 ATOM 175 N ILE A 60 254.942 225.865 234.496 1.00236.78 ATOM 176 CA ILE A 60 253.876 225.070 235.112 1.00236.78 ATOM 177 C ILE A 60 253.902 223.638 234.590 1.00236.78 ATOM 178 N ASP A 61 254.155 223.459 233.290 1.00240.64 ATOM 179 CA ASP A 61 254.220 222.107 232.743 1.00240.64 ATOM 180 C ASP A 61 255.306 221.281 233.416 1.00240.64 ATOM 181 N THR A 62 256.330 221.935 233.960 1.00239.53 ATOM 182 CA THR A 62 257.364 221.215 234.694 1.00239.53 ATOM 183 C THR A 62 256.934 220.935 236.131 1.00239.53 ATOM 184 N TYR A 63 256.760 221.986 236.928 1.00216.70 ATOM 185 CA TYR A 63 256.479 221.865 238.357 1.00216.70 ATOM 186 C TYR A 63 254.979 222.024 238.590 1.00216.70 ATOM 187 N LYS A 64 254.234 220.952 238.316 1.00207.81 ATOM 188 CA LYS A 64 252.811 220.947 238.632 1.00207.81 ATOM 189 C LYS A 64 252.584 221.036 240.136 1.00207.81 ATOM 190 N LYS A 65 253.381 220.307 240.915 1.00215.67 ATOM 191 CA LYS A 65 253.183 220.210 242.361 1.00215.67 ATOM 192 C LYS A 65 254.010 221.284 243.069 1.00215.67 ATOM 193 N SER A 66 253.541 222.522 242.939 1.00212.34 ATOM 194 CA SER A 66 254.199 223.656 243.571 1.00212.34 ATOM 195 C SER A 66 253.148 224.687 243.947 1.00212.34 ATOM 196 N GLY A 67 253.288 225.271 245.136 1.00233.85 ATOM 197 CA GLY A 67 252.351 226.293 245.566 1.00233.85 ATOM 198 C GLY A 67 252.525 227.629 244.877 1.00233.85 ATOM 199 N ARG A 68 253.632 227.822 244.160 1.00266.56 ATOM 200 CA ARG A 68 253.887 229.072 243.460 1.00266.56 ATOM 201 C ARG A 68 253.071 229.201 242.182 1.00266.56 ATOM 202 N ASN A 69 252.363 228.142 241.783 1.00255.87 ATOM 203 CA ASN A 69 251.555 228.219 240.575 1.00255.87 ATOM 204 C ASN A 69 250.472 229.281 240.698 1.00255.87 ATOM 205 N LYS A 70 249.933 229.486 241.902 1.00245.14 ATOM 206 CA LYS A 70 248.968 230.562 242.113 1.00245.14 ATOM 207 C LYS A 70 249.600 231.931 241.883 1.00245.14 ATOM 208 N ALA A 71 250.842 232.110 242.336 1.00242.96 ATOM 209 CA ALA A 71 251.547 233.355 242.074 1.00242.96 ATOM 210 C ALA A 71 251.743 233.555 240.582 1.00242.96 ATOM 211 N LEU A 72 252.075 232.480 239.865 1.00253.74 ATOM 212 CA LEU A 72 252.192 232.577 238.411 1.00253.74 ATOM 213 C LEU A 72 250.856 232.933 237.761 1.00253.74 ATOM 214 N LYS A 73 249.758 232.353 238.253 1.00237.15 ATOM 215 CA LYS A 73 248.444 232.637 237.681 1.00237.15 ATOM 216 C LYS A 73 248.112 234.117 237.822 1.00237.15 ATOM 217 N LYS A 74 248.235 234.632 239.046 1.00247.96 ATOM 218 CA LYS A 74 247.959 236.044 239.277 1.00247.96 ATOM 219 C LYS A 74 248.932 236.917 238.503 1.00247.96 ATOM 220 N PHE A 75 250.180 236.470 238.371 1.00259.47 ATOM 221 CA PHE A 75 251.153 237.232 237.608 1.00259.47 ATOM 222 C PHE A 75 250.720 237.365 236.157 1.00259.47 ATOM 223 N LYS A 76 250.225 236.281 235.550 1.00248.39 ATOM 224 CA LYS A 76 249.885 236.412 234.139 1.00248.39 ATOM 225 C LYS A 76 248.645 237.280 233.982 1.00248.39 ATOM 226 N GLU A 77 247.700 237.200 234.930 1.00280.49 ATOM 227 CA GLU A 77 246.529 238.067 234.791 1.00280.49 ATOM 228 C GLU A 77 246.906 239.536 234.970 1.00280.49 ATOM 229 N TYR A 78 247.864 239.833 235.854 1.00316.78 ATOM 230 CA TYR A 78 248.385 241.196 235.902 1.00316.78 ATOM 231 C TYR A 78 249.028 241.575 234.577 1.00316.78 ATOM 232 N LEU A 79 249.756 240.642 233.958 1.00285.20 ATOM 233 CA LEU A 79 250.339 240.919 232.648 1.00285.20 ATOM 234 C LEU A 79 249.259 241.268 231.633 1.00285.20 ATOM 235 N VAL A 80 248.129 240.562 231.683 1.00283.09 ATOM 236 CA VAL A 80 246.999 240.906 230.825 1.00283.09 ATOM 237 C VAL A 80 246.526 242.323 231.121 1.00283.09 ATOM 238 N THR A 81 246.492 242.692 232.402 1.00272.62 ATOM 239 CA THR A 81 246.097 244.055 232.747 1.00272.62 ATOM 240 C THR A 81 247.043 245.074 232.120 1.00272.62 ATOM 241 N GLU A 82 248.355 244.840 232.222 1.00297.40 ATOM 242 CA GLU A 82 249.286 245.803 231.637 1.00297.40 ATOM 243 C GLU A 82 249.184 245.830 230.120 1.00297.40 ATOM 244 N VAL A 83 248.971 244.680 229.476 1.00260.75 ATOM 245 CA VAL A 83 248.918 244.713 228.017 1.00260.75 ATOM 246 C VAL A 83 247.688 245.483 227.559 1.00260.75 ATOM 247 N LEU A 84 246.546 245.281 228.225 1.00248.24 ATOM 248 CA LEU A 84 245.356 246.021 227.822 1.00248.24 ATOM 249 C LEU A 84 245.518 247.514 228.088 1.00248.24 ATOM 250 N GLU A 85 246.090 247.886 229.239 1.00269.73 ATOM 251 CA GLU A 85 246.236 249.312 229.519 1.00269.73 ATOM 252 C GLU A 85 247.283 249.960 228.620 1.00269.73 ATOM 253 N LEU A 86 248.303 249.206 228.205 1.00276.98 ATOM 254 CA LEU A 86 249.279 249.735 227.261 1.00276.98 ATOM 255 C LEU A 86 248.658 249.909 225.884 1.00276.98 ATOM 256 N LYS A 87 247.805 248.968 225.476 1.00281.27 ATOM 257 CA LYS A 87 247.043 249.164 224.250 1.00281.27 ATOM 258 C LYS A 87 246.131 250.376 224.363 1.00281.27 ATOM 259 N ASN A 88 245.666 250.681 225.576 1.00269.21 ATOM 260 CA ASN A 88 244.794 251.834 225.768 1.00269.21 ATOM 261 C ASN A 88 245.509 253.138 225.434 1.00269.21 ATOM 262 N ASN A 89 246.759 253.285 225.873 1.00275.43 ATOM 263 CA ASN A 89 247.500 254.526 225.692 1.00275.43 ATOM 264 C ASN A 89 248.349 254.533 224.424 1.00275.43 ATOM 265 N ASN A 90 247.979 253.742 223.419 1.00267.06 ATOM 266 CA ASN A 90 248.669 253.711 222.138 1.00267.06 ATOM 267 C ASN A 90 247.720 254.162 221.037 1.00267.06 ATOM 268 N LEU A 91 248.236 254.965 220.109 1.00245.09 ATOM 269 CA LEU A 91 247.410 255.538 219.056 1.00245.09 ATOM 270 C LEU A 91 248.297 255.968 217.896 1.00245.09 TER