HEADER HYDROLASE/DNA 31-DEC-69 7K32 TITLE Crystal structure of Endonuclease Q complex with 27-mer duplex TITLE 2 substrate with an abasic lesion at the active site COMPND MOL_ID: 1; COMPND 2 MOLECULE: Endonuclease Q; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.11 ANGSTORMS DBREF 7K32 A 1 400 UNP I6V2I0 I6V2I0_9EUR 1 400 SEQRES 1 A 31 THR ALA CYS SER ARG CYS TYR THR LYS TYR THR LEU GLN SEQRES 2 A 31 ASP ALA VAL SER LEU SER TRP LYS CYS PRO LYS CYS GLY SEQRES 3 A 31 GLY ILE ILE LYS LYS ATOM 1 N THR A 247 51.966 27.616 -27.829 1.00112.00 ATOM 2 CA THR A 247 51.971 27.031 -29.165 1.00 93.73 ATOM 3 C THR A 247 52.479 25.597 -29.075 1.00106.01 ATOM 4 O THR A 247 53.677 25.366 -28.882 1.00112.49 ATOM 5 CB THR A 247 52.866 27.868 -30.073 1.00122.68 ATOM 6 OG1 THR A 247 52.427 29.233 -30.046 1.00134.74 ATOM 7 CG2 THR A 247 52.810 27.358 -31.499 1.00135.55 ATOM 8 N ALA A 248 51.572 24.632 -29.209 1.00113.75 ATOM 9 CA ALA A 248 51.922 23.224 -29.098 1.00105.59 ATOM 10 C ALA A 248 51.248 22.442 -30.217 1.00110.27 ATOM 11 O ALA A 248 50.447 22.979 -30.988 1.00106.71 ATOM 12 CB ALA A 248 51.543 22.651 -27.726 1.00100.68 ATOM 13 N CYS A 249 51.583 21.157 -30.298 1.00124.51 ATOM 14 CA CYS A 249 51.032 20.286 -31.323 1.00144.34 ATOM 15 C CYS A 249 49.653 19.778 -30.911 1.00139.30 ATOM 16 O CYS A 249 49.266 19.824 -29.740 1.00170.90 ATOM 17 CB CYS A 249 51.966 19.103 -31.580 1.00176.43 ATOM 18 SG CYS A 249 51.421 17.993 -32.901 1.00215.86 ATOM 19 N SER A 250 48.909 19.285 -31.899 1.00109.16 ATOM 20 CA SER A 250 47.555 18.793 -31.686 1.00101.89 ATOM 21 C SER A 250 47.481 17.277 -31.559 1.00108.37 ATOM 22 O SER A 250 46.384 16.739 -31.377 1.00110.16 ATOM 23 CB SER A 250 46.632 19.267 -32.814 1.00 98.20 ATOM 24 OG SER A 250 46.606 20.682 -32.888 1.00105.84 ATOM 25 N ARG A 251 48.614 16.577 -31.649 1.00123.45 ATOM 26 CA ARG A 251 48.628 15.119 -31.549 1.00155.38 ATOM 27 C ARG A 251 49.449 14.654 -30.353 1.00171.75 ATOM 28 O ARG A 251 48.884 14.076 -29.422 1.00172.30 ATOM 29 CB ARG A 251 49.092 14.486 -32.862 1.00159.35 ATOM 30 CG ARG A 251 49.095 12.966 -32.856 1.00162.45 ATOM 31 CD ARG A 251 49.127 12.415 -34.273 1.00159.25 ATOM 32 NE ARG A 251 47.953 12.823 -35.035 1.00156.92 ATOM 33 CZ ARG A 251 47.723 12.486 -36.297 1.00150.44 ATOM 34 NH1 ARG A 251 48.570 11.731 -36.976 1.00169.34 ATOM 35 NH2 ARG A 251 46.614 12.917 -36.892 1.00132.43 ATOM 36 N CYS A 252 50.762 14.883 -30.342 1.00175.73 ATOM 37 CA CYS A 252 51.590 14.519 -29.200 1.00163.21 ATOM 38 C CYS A 252 51.606 15.584 -28.111 1.00171.42 ATOM 39 O CYS A 252 52.159 15.335 -27.034 1.00183.60 ATOM 40 CB CYS A 252 53.024 14.204 -29.647 1.00144.77 ATOM 41 SG CYS A 252 53.918 15.591 -30.386 1.00151.02 ATOM 42 N TYR A 253 51.016 16.754 -28.366 1.00157.11 ATOM 43 CA TYR A 253 50.906 17.830 -27.378 1.00153.13 ATOM 44 C TYR A 253 52.275 18.273 -26.860 1.00148.44 ATOM 45 O TYR A 253 52.499 18.404 -25.655 1.00171.32 ATOM 46 CB TYR A 253 49.955 17.464 -26.233 1.00167.13 ATOM 47 CG TYR A 253 48.538 17.171 -26.677 1.00162.03 ATOM 48 CD1 TYR A 253 47.664 18.201 -27.000 1.00160.89 ATOM 49 CD2 TYR A 253 48.072 15.865 -26.767 1.00155.95 ATOM 50 CE1 TYR A 253 46.368 17.939 -27.404 1.00160.24 ATOM 51 CE2 TYR A 253 46.777 15.593 -27.170 1.00154.70 ATOM 52 CZ TYR A 253 45.930 16.634 -27.487 1.00163.12 ATOM 53 OH TYR A 253 44.640 16.371 -27.889 1.00171.23 ATOM 54 N THR A 254 53.198 18.509 -27.789 1.00136.85 ATOM 55 CA THR A 254 54.538 18.976 -27.462 1.00137.76 ATOM 56 C THR A 254 54.608 20.482 -27.672 1.00130.86 ATOM 57 O THR A 254 54.233 20.983 -28.737 1.00116.43 ATOM 58 CB THR A 254 55.581 18.281 -28.337 1.00145.02 ATOM 59 OG1 THR A 254 55.533 16.867 -28.110 1.00166.84 ATOM 60 CG2 THR A 254 56.977 18.793 -28.011 1.00144.59 ATOM 61 N LYS A 255 55.083 21.199 -26.657 1.00140.40 ATOM 62 CA LYS A 255 55.188 22.648 -26.737 1.00146.30 ATOM 63 C LYS A 255 56.387 23.044 -27.589 1.00147.17 ATOM 64 O LYS A 255 57.473 22.470 -27.467 1.00158.76 ATOM 65 CB LYS A 255 55.335 23.245 -25.337 1.00159.55 ATOM 66 CG LYS A 255 54.190 22.914 -24.391 1.00153.90 ATOM 67 CD LYS A 255 54.365 23.596 -23.039 1.00153.62 ATOM 68 CE LYS A 255 55.649 23.155 -22.349 1.00158.94 ATOM 69 NZ LYS A 255 55.818 23.802 -21.017 1.00136.93 ATOM 70 N TYR A 256 56.181 24.032 -28.458 1.00143.74 ATOM 71 CA TYR A 256 57.239 24.574 -29.295 1.00154.85 ATOM 72 C TYR A 256 57.189 26.094 -29.251 1.00145.46 ATOM 73 O TYR A 256 56.133 26.691 -29.023 1.00127.45 ATOM 74 CB TYR A 256 57.102 24.125 -30.757 1.00176.40 ATOM 75 CG TYR A 256 57.123 22.628 -30.970 1.00189.73 ATOM 76 CD1 TYR A 256 58.322 21.928 -31.013 1.00186.55 ATOM 77 CD2 TYR A 256 55.944 21.917 -31.149 1.00193.94 ATOM 78 CE1 TYR A 256 58.344 20.559 -31.216 1.00183.35 ATOM 79 CE2 TYR A 256 55.955 20.551 -31.352 1.00189.93 ATOM 80 CZ TYR A 256 57.156 19.877 -31.385 1.00181.02 ATOM 81 OH TYR A 256 57.167 18.516 -31.588 1.00169.47 ATOM 82 N THR A 257 58.343 26.715 -29.474 1.00158.71 ATOM 83 CA THR A 257 58.405 28.164 -29.547 1.00151.26 ATOM 84 C THR A 257 57.852 28.647 -30.885 1.00132.22 ATOM 85 O THR A 257 57.708 27.882 -31.842 1.00129.44 ATOM 86 CB THR A 257 59.845 28.649 -29.378 1.00150.49 ATOM 87 OG1 THR A 257 60.652 28.142 -30.448 1.00147.18 ATOM 88 CG2 THR A 257 60.415 28.173 -28.051 1.00151.89 ATOM 89 N LEU A 258 57.535 29.942 -30.938 1.00128.03 ATOM 90 CA LEU A 258 57.039 30.524 -32.181 1.00136.01 ATOM 91 C LEU A 258 58.113 30.509 -33.261 1.00121.03 ATOM 92 O LEU A 258 57.816 30.279 -34.440 1.00113.45 ATOM 93 CB LEU A 258 56.536 31.945 -31.928 1.00139.44 ATOM 94 CG LEU A 258 55.888 32.669 -33.110 1.00128.23 ATOM 95 CD1 LEU A 258 54.700 31.880 -33.637 1.00 96.08 ATOM 96 CD2 LEU A 258 55.467 34.074 -32.708 1.00 98.13 ATOM 97 N GLN A 259 59.370 30.740 -32.874 1.00123.08 ATOM 98 CA GLN A 259 60.462 30.734 -33.842 1.00150.57 ATOM 99 C GLN A 259 60.638 29.350 -34.453 1.00168.84 ATOM 100 O GLN A 259 60.734 29.205 -35.678 1.00170.62 ATOM 101 CB GLN A 259 61.754 31.194 -33.167 1.00149.83 ATOM 102 CG GLN A 259 61.548 32.241 -32.083 1.00161.67 ATOM 103 CD GLN A 259 60.831 33.478 -32.589 1.00173.11 ATOM 104 OE1 GLN A 259 59.915 33.986 -31.941 1.00155.71 ATOM 105 NE2 GLN A 259 61.247 33.972 -33.749 1.00185.29 ATOM 106 N ASP A 260 60.679 28.316 -33.609 1.00176.32 ATOM 107 CA ASP A 260 60.778 26.952 -34.116 1.00163.57 ATOM 108 C ASP A 260 59.549 26.569 -34.930 1.00138.87 ATOM 109 O ASP A 260 59.662 25.823 -35.909 1.00131.09 ATOM 110 CB ASP A 260 60.984 25.973 -32.960 1.00169.81 ATOM 111 CG ASP A 260 62.294 26.202 -32.229 1.00181.15 ATOM 112 OD1 ASP A 260 63.296 26.542 -32.893 1.00188.08 ATOM 113 OD2 ASP A 260 62.320 26.044 -30.990 1.00177.81 ATOM 114 N ALA A 261 58.373 27.075 -34.551 1.00123.23 ATOM 115 CA ALA A 261 57.164 26.794 -35.318 1.00115.70 ATOM 116 C ALA A 261 57.267 27.362 -36.728 1.00116.57 ATOM 117 O ALA A 261 56.980 26.670 -37.712 1.00117.50 ATOM 118 CB ALA A 261 55.941 27.357 -34.593 1.00108.20 ATOM 119 N VAL A 262 57.686 28.623 -36.844 1.00123.11 ATOM 120 CA VAL A 262 57.845 29.227 -38.164 1.00126.01 ATOM 121 C VAL A 262 58.950 28.529 -38.950 1.00126.29 ATOM 122 O VAL A 262 58.854 28.371 -40.173 1.00127.83 ATOM 123 CB VAL A 262 58.074 30.745 -38.044 1.00125.01 ATOM 124 CG1 VAL A 262 58.240 31.373 -39.421 1.00120.60 ATOM 125 CG2 VAL A 262 56.920 31.396 -37.299 1.00124.97 ATOM 126 N SER A 263 60.008 28.088 -38.263 1.00134.85 ATOM 127 CA SER A 263 61.098 27.401 -38.951 1.00159.95 ATOM 128 C SER A 263 60.642 26.062 -39.518 1.00159.24 ATOM 129 O SER A 263 60.980 25.717 -40.657 1.00157.47 ATOM 130 CB SER A 263 62.283 27.212 -38.003 1.00181.70 ATOM 131 OG SER A 263 63.348 26.533 -38.647 1.00185.63 ATOM 132 N LEU A 264 59.879 25.295 -38.742 1.00148.64 ATOM 133 CA LEU A 264 59.358 24.013 -39.200 1.00142.21 ATOM 134 C LEU A 264 58.076 24.147 -40.011 1.00136.32 ATOM 135 O LEU A 264 57.522 23.124 -40.429 1.00131.75 ATOM 136 CB LEU A 264 59.135 23.066 -38.015 1.00137.16 ATOM 137 CG LEU A 264 60.344 22.281 -37.494 1.00158.15 ATOM 138 CD1 LEU A 264 61.043 21.550 -38.633 1.00173.27 ATOM 139 CD2 LEU A 264 61.323 23.172 -36.740 1.00163.13 ATOM 140 N SER A 265 57.596 25.373 -40.235 1.00139.99 ATOM 141 CA SER A 265 56.399 25.623 -41.041 1.00138.20 ATOM 142 C SER A 265 55.169 24.935 -40.453 1.00131.34 ATOM 143 O SER A 265 54.305 24.438 -41.179 1.00141.33 ATOM 144 CB SER A 265 56.600 25.267 -42.518 1.00150.32 ATOM 145 OG SER A 265 56.766 23.871 -42.696 1.00176.86 ATOM 146 N TRP A 266 55.100 24.903 -39.121 1.00123.38 ATOM 147 CA TRP A 266 53.961 24.338 -38.395 1.00122.49 ATOM 148 C TRP A 266 53.781 22.848 -38.681 1.00122.21 ATOM 149 O TRP A 266 52.666 22.366 -38.890 1.00111.17 ATOM 150 CB TRP A 266 52.672 25.126 -38.642 1.00115.68 ATOM 151 CG TRP A 266 52.848 26.607 -38.506 1.00119.13 ATOM 152 CD1 TRP A 266 53.170 27.488 -39.497 1.00134.58 ATOM 153 CD2 TRP A 266 52.717 27.381 -37.308 1.00120.45 ATOM 154 NE1 TRP A 266 53.245 28.763 -38.992 1.00143.96 ATOM 155 CE2 TRP A 266 52.971 28.725 -37.650 1.00133.93 ATOM 156 CE3 TRP A 266 52.408 27.070 -35.980 1.00126.26 ATOM 157 CZ2 TRP A 266 52.926 29.755 -36.713 1.00138.05 ATOM 158 CZ3 TRP A 266 52.363 28.095 -35.051 1.00132.15 ATOM 159 CH2 TRP A 266 52.621 29.421 -35.422 1.00139.46 ATOM 160 N LYS A 267 54.891 22.111 -38.684 1.00136.47 ATOM 161 CA LYS A 267 54.882 20.669 -38.904 1.00152.64 ATOM 162 C LYS A 267 55.610 20.006 -37.746 1.00166.72 ATOM 163 O LYS A 267 56.807 20.239 -37.550 1.00180.71 ATOM 164 CB LYS A 267 55.567 20.314 -40.228 1.00156.27 ATOM 165 CG LYS A 267 55.030 21.070 -41.434 1.00168.44 ATOM 166 CD LYS A 267 53.545 20.817 -41.636 1.00176.76 ATOM 167 CE LYS A 267 53.004 21.628 -42.804 1.00168.10 ATOM 168 NZ LYS A 267 51.538 21.435 -42.988 1.00160.10 ATOM 169 N CYS A 268 54.894 19.187 -36.986 1.00158.59 ATOM 170 CA CYS A 268 55.485 18.504 -35.839 1.00153.91 ATOM 171 C CYS A 268 56.510 17.485 -36.319 1.00142.09 ATOM 172 O CYS A 268 56.159 16.586 -37.095 1.00152.97 ATOM 173 CB CYS A 268 54.391 17.807 -35.036 1.00158.22 ATOM 174 SG CYS A 268 54.965 17.000 -33.522 1.00156.33 ATOM 175 N PRO A 269 57.774 17.579 -35.894 1.00146.22 ATOM 176 CA PRO A 269 58.795 16.649 -36.398 1.00171.59 ATOM 177 C PRO A 269 58.624 15.224 -35.890 1.00183.23 ATOM 178 O PRO A 269 58.392 14.304 -36.681 1.00164.24 ATOM 179 CB PRO A 269 60.110 17.270 -35.908 1.00170.79 ATOM 180 CG PRO A 269 59.725 18.090 -34.721 1.00154.70 ATOM 181 CD PRO A 269 58.339 18.599 -34.994 1.00146.35 ATOM 182 N LYS A 270 58.739 15.027 -34.578 1.00194.62 ATOM 183 CA LYS A 270 58.630 13.697 -33.977 1.00206.31 ATOM 184 C LYS A 270 57.189 13.273 -33.714 1.00202.94 ATOM 185 O LYS A 270 56.902 12.626 -32.704 1.00209.02 ATOM 186 CB LYS A 270 59.469 13.628 -32.702 1.00214.48 ATOM 187 CG LYS A 270 59.108 14.661 -31.640 1.00203.72 ATOM 188 CD LYS A 270 60.016 15.880 -31.706 1.00193.42 ATOM 189 CE LYS A 270 59.701 16.865 -30.591 1.00161.66 ATOM 190 NZ LYS A 270 59.813 16.239 -29.245 1.00161.32 ATOM 191 N CYS A 271 56.268 13.615 -34.613 1.00190.80 ATOM 192 CA CYS A 271 54.858 13.300 -34.421 1.00177.80 ATOM 193 C CYS A 271 54.115 13.292 -35.751 1.00164.93 ATOM 194 O CYS A 271 53.250 12.441 -35.982 1.00152.20 ATOM 195 CB CYS A 271 54.223 14.300 -33.452 1.00162.80 ATOM 196 SG CYS A 271 52.504 14.724 -33.811 1.00141.93 ATOM 197 N GLY A 272 54.447 14.232 -36.629 1.00171.53 ATOM 198 CA GLY A 272 53.770 14.330 -37.907 1.00176.20 ATOM 199 C GLY A 272 52.410 14.986 -37.839 1.00149.91 ATOM 200 O GLY A 272 51.492 14.580 -38.564 1.00137.84 ATOM 201 N GLY A 273 52.250 15.992 -36.984 1.00153.07 ATOM 202 CA GLY A 273 50.981 16.678 -36.850 1.00152.60 ATOM 203 C GLY A 273 51.067 18.156 -37.169 1.00138.14 ATOM 204 O GLY A 273 52.094 18.634 -37.661 1.00147.19 ATOM 205 N ILE A 274 49.994 18.891 -36.895 1.00111.99 ATOM 206 CA ILE A 274 49.927 20.323 -37.156 1.00130.79 ATOM 207 C ILE A 274 49.923 21.039 -35.812 1.00135.40 ATOM 208 O ILE A 274 48.937 20.982 -35.067 1.00124.96 ATOM 209 CB ILE A 274 48.700 20.697 -37.997 1.00142.03 ATOM 210 CG1 ILE A 274 48.763 20.004 -39.360 1.00169.75 ATOM 211 CG2 ILE A 274 48.609 22.207 -38.168 1.00121.44 ATOM 212 CD1 ILE A 274 47.594 20.323 -40.259 1.00182.30 ATOM 213 N ILE A 275 51.027 21.707 -35.500 1.00143.07 ATOM 214 CA ILE A 275 51.144 22.465 -34.261 1.00137.53 ATOM 215 C ILE A 275 50.361 23.764 -34.399 1.00114.18 ATOM 216 O ILE A 275 50.531 24.507 -35.374 1.00111.26 ATOM 217 CB ILE A 275 52.622 22.723 -33.926 1.00154.07 ATOM 218 CG1 ILE A 275 52.788 24.028 -33.145 1.00166.92 ATOM 219 CG2 ILE A 275 53.463 22.731 -35.193 1.00147.22 ATOM 220 CD1 ILE A 275 54.231 24.442 -32.974 1.00181.10 ATOM 221 N LYS A 276 49.492 24.034 -33.430 1.00 94.39 ATOM 222 CA LYS A 276 48.635 25.210 -33.453 1.00 89.06 ATOM 223 C LYS A 276 49.203 26.312 -32.567 1.00 99.42 ATOM 224 O LYS A 276 49.828 26.050 -31.535 1.00 84.49 ATOM 225 CB LYS A 276 47.213 24.859 -33.009 1.00 80.56 ATOM 226 CG LYS A 276 46.418 24.101 -34.060 1.00 81.53 ATOM 227 CD LYS A 276 46.359 24.890 -35.360 1.00108.22 ATOM 228 CE LYS A 276 45.607 24.135 -36.444 1.00113.66 ATOM 229 NZ LYS A 276 45.578 24.894 -37.727 1.00106.17 ATOM 230 N LYS A 277 48.968 27.554 -32.983 1.00109.96 ATOM 231 CA LYS A 277 49.533 28.714 -32.308 1.00121.29 ATOM 232 C LYS A 277 48.755 29.021 -31.034 1.00112.68 ATOM 233 O LYS A 277 47.531 29.186 -31.066 1.00113.15 ATOM 234 CB LYS A 277 49.508 29.917 -33.251 1.00116.51 ATOM 235 CG LYS A 277 50.023 31.213 -32.647 1.00114.60 ATOM 236 CD LYS A 277 50.553 32.148 -33.728 1.00106.84 ATOM 237 CE LYS A 277 49.565 32.298 -34.874 1.00 99.94 ATOM 238 NZ LYS A 277 50.104 33.146 -35.975 1.00105.37 ATOM 239 ZN ZN A 501 53.027 16.438 -32.318 1.00151.63 TER