HEADER ELECTRON TRANSPORT 31-DEC-69 3A0B TITLE Crystal structure of Br-substituted Photosystem II complex COMPND MOL_ID: 17; COMPND 2 MOLECULE: Photosystem II reaction center protein X; COMPND 3 CHAIN: X, x; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.70 ANGSTORMS DBREF 3A0B X 11 44 PDB 3A0H 3A0H 1 34 SEQRES 1 X 34 THR ILE THR PRO SER LEU LYS GLY PHE PHE ILE GLY LEU SEQRES 2 X 34 LEU SER GLY ALA VAL VAL LEU GLY LEU THR PHE ALA VAL SEQRES 3 X 34 LEU ILE ALA ILE SER GLN ILE ASP ATOM 1 N THR X 1 -32.055 54.175 46.812 1.00169.87 ATOM 2 CA THR X 1 -31.897 55.576 46.327 1.00170.28 ATOM 3 C THR X 1 -31.748 56.516 47.544 1.00169.71 ATOM 4 O THR X 1 -32.148 56.159 48.649 1.00169.56 ATOM 5 CB THR X 1 -33.118 55.987 45.454 1.00170.88 ATOM 6 OG1 THR X 1 -33.511 54.883 44.622 1.00171.50 ATOM 7 CG2 THR X 1 -32.756 57.153 44.555 1.00171.41 ATOM 8 N ILE X 2 -31.156 57.695 47.337 1.00168.68 ATOM 9 CA ILE X 2 -30.918 58.694 48.395 1.00166.99 ATOM 10 C ILE X 2 -30.174 58.178 49.638 1.00166.47 ATOM 11 O ILE X 2 -30.612 58.353 50.774 1.00166.19 ATOM 12 CB ILE X 2 -32.236 59.423 48.834 1.00167.06 ATOM 13 CG1 ILE X 2 -31.896 60.534 49.829 1.00166.95 ATOM 14 CG2 ILE X 2 -33.217 58.457 49.480 1.00166.51 ATOM 15 CD1 ILE X 2 -30.805 61.461 49.344 1.00167.01 ATOM 16 N THR X 3 -29.029 57.551 49.396 1.00165.55 ATOM 17 CA THR X 3 -28.170 57.007 50.444 1.00163.88 ATOM 18 C THR X 3 -27.272 58.132 50.929 1.00163.60 ATOM 19 O THR X 3 -27.067 59.114 50.223 1.00164.11 ATOM 20 CB THR X 3 -27.279 55.851 49.881 1.00164.06 ATOM 21 OG1 THR X 3 -27.895 54.592 50.166 1.00164.08 ATOM 22 CG2 THR X 3 -25.874 55.874 50.478 1.00163.62 ATOM 23 N PRO X 4 -26.742 58.016 52.148 1.00162.87 ATOM 24 CA PRO X 4 -25.860 59.054 52.676 1.00162.03 ATOM 25 C PRO X 4 -24.539 59.168 51.906 1.00162.07 ATOM 26 O PRO X 4 -23.899 60.215 51.942 1.00162.12 ATOM 27 CB PRO X 4 -25.654 58.628 54.124 1.00162.31 ATOM 28 CG PRO X 4 -25.778 57.153 54.044 1.00163.18 ATOM 29 CD PRO X 4 -26.986 56.987 53.165 1.00162.84 ATOM 30 N SER X 5 -24.127 58.098 51.220 1.00161.63 ATOM 31 CA SER X 5 -22.875 58.125 50.450 1.00160.47 ATOM 32 C SER X 5 -23.101 58.367 48.951 1.00159.24 ATOM 33 O SER X 5 -22.147 58.589 48.198 1.00158.85 ATOM 34 CB SER X 5 -22.105 56.822 50.616 1.00161.50 ATOM 35 OG SER X 5 -22.625 55.826 49.753 1.00162.49 ATOM 36 N LEU X 6 -24.354 58.282 48.513 1.00157.75 ATOM 37 CA LEU X 6 -24.682 58.549 47.120 1.00155.81 ATOM 38 C LEU X 6 -24.505 60.054 47.136 1.00154.55 ATOM 39 O LEU X 6 -23.809 60.615 46.298 1.00155.01 ATOM 40 CB LEU X 6 -26.145 58.180 46.824 1.00155.79 ATOM 41 CG LEU X 6 -26.675 58.064 45.388 1.00155.21 ATOM 42 CD1 LEU X 6 -27.264 59.361 44.894 1.00154.79 ATOM 43 CD2 LEU X 6 -25.562 57.601 44.502 1.00154.80 ATOM 44 N LYS X 7 -25.122 60.678 48.141 1.00152.52 ATOM 45 CA LYS X 7 -25.078 62.118 48.379 1.00150.80 ATOM 46 C LYS X 7 -23.639 62.623 48.446 1.00149.92 ATOM 47 O LYS X 7 -23.238 63.506 47.686 1.00149.15 ATOM 48 CB LYS X 7 -25.807 62.437 49.692 1.00150.32 ATOM 49 CG LYS X 7 -25.618 63.855 50.230 1.00150.33 ATOM 50 CD LYS X 7 -26.463 64.072 51.490 1.00150.56 ATOM 51 CE LYS X 7 -26.184 65.415 52.169 1.00150.72 ATOM 52 NZ LYS X 7 -27.070 65.647 53.352 1.00149.53 ATOM 53 N GLY X 8 -22.866 62.054 49.359 1.00149.79 ATOM 54 CA GLY X 8 -21.484 62.449 49.490 1.00149.61 ATOM 55 C GLY X 8 -20.824 62.351 48.136 1.00149.72 ATOM 56 O GLY X 8 -19.975 63.164 47.809 1.00149.92 ATOM 57 N PHE X 9 -21.236 61.376 47.329 1.00150.06 ATOM 58 CA PHE X 9 -20.649 61.187 46.003 1.00149.94 ATOM 59 C PHE X 9 -21.052 62.276 45.029 1.00150.56 ATOM 60 O PHE X 9 -20.312 62.608 44.103 1.00150.73 ATOM 61 CB PHE X 9 -21.025 59.825 45.435 1.00148.07 ATOM 62 CG PHE X 9 -20.574 59.625 44.026 1.00146.61 ATOM 63 CD1 PHE X 9 -19.315 60.048 43.621 1.00146.45 ATOM 64 CD2 PHE X 9 -21.401 59.002 43.103 1.00146.03 ATOM 65 CE1 PHE X 9 -18.890 59.852 42.322 1.00146.39 ATOM 66 CE2 PHE X 9 -20.985 58.800 41.802 1.00145.89 ATOM 67 CZ PHE X 9 -19.728 59.225 41.409 1.00146.38 ATOM 68 N PHE X 10 -22.247 62.816 45.209 1.00150.99 ATOM 69 CA PHE X 10 -22.664 63.900 44.346 1.00151.24 ATOM 70 C PHE X 10 -21.838 65.090 44.827 1.00150.88 ATOM 71 O PHE X 10 -21.089 65.676 44.048 1.00151.18 ATOM 72 CB PHE X 10 -24.170 64.182 44.492 1.00152.85 ATOM 73 CG PHE X 10 -25.064 63.249 43.686 1.00153.91 ATOM 74 CD1 PHE X 10 -24.531 62.179 42.968 1.00154.36 ATOM 75 CD2 PHE X 10 -26.452 63.428 43.677 1.00153.95 ATOM 76 CE1 PHE X 10 -25.374 61.298 42.256 1.00154.53 ATOM 77 CE2 PHE X 10 -27.292 62.557 42.971 1.00154.01 ATOM 78 CZ PHE X 10 -26.755 61.493 42.264 1.00154.14 ATOM 79 N ILE X 11 -21.946 65.413 46.119 1.00150.14 ATOM 80 CA ILE X 11 -21.199 66.529 46.713 1.00149.85 ATOM 81 C ILE X 11 -19.739 66.501 46.299 1.00149.15 ATOM 82 O ILE X 11 -19.100 67.536 46.161 1.00148.59 ATOM 83 CB ILE X 11 -21.241 66.504 48.268 1.00150.61 ATOM 84 CG1 ILE X 11 -22.589 67.017 48.763 1.00152.24 ATOM 85 CG2 ILE X 11 -20.123 67.362 48.852 1.00150.15 ATOM 86 CD1 ILE X 11 -22.648 67.200 50.268 1.00153.46 ATOM 87 N GLY X 12 -19.206 65.303 46.128 1.00149.25 ATOM 88 CA GLY X 12 -17.821 65.178 45.733 1.00148.78 ATOM 89 C GLY X 12 -17.687 65.494 44.267 1.00148.72 ATOM 90 O GLY X 12 -16.692 66.062 43.829 1.00148.01 ATOM 91 N LEU X 13 -18.692 65.109 43.497 1.00149.33 ATOM 92 CA LEU X 13 -18.660 65.361 42.080 1.00150.18 ATOM 93 C LEU X 13 -18.595 66.854 41.812 1.00150.87 ATOM 94 O LEU X 13 -17.720 67.314 41.078 1.00150.98 ATOM 95 CB LEU X 13 -19.882 64.747 41.417 1.00150.06 ATOM 96 CG LEU X 13 -19.425 63.888 40.249 1.00150.40 ATOM 97 CD1 LEU X 13 -18.453 62.834 40.751 1.00150.46 ATOM 98 CD2 LEU X 13 -20.613 63.246 39.577 1.00150.98 ATOM 99 N LEU X 14 -19.506 67.610 42.423 1.00151.57 ATOM 100 CA LEU X 14 -19.533 69.057 42.245 1.00151.81 ATOM 101 C LEU X 14 -18.217 69.673 42.717 1.00153.14 ATOM 102 O LEU X 14 -17.605 70.417 41.965 1.00153.39 ATOM 103 CB LEU X 14 -20.716 69.684 42.998 1.00149.79 ATOM 104 CG LEU X 14 -20.559 70.099 44.459 1.00148.54 ATOM 105 CD1 LEU X 14 -19.766 71.390 44.555 1.00148.13 ATOM 106 CD2 LEU X 14 -21.920 70.295 45.069 1.00148.40 ATOM 107 N SER X 15 -17.773 69.373 43.941 1.00154.78 ATOM 108 CA SER X 15 -16.511 69.932 44.448 1.00156.05 ATOM 109 C SER X 15 -15.416 69.633 43.417 1.00157.16 ATOM 110 O SER X 15 -14.504 70.438 43.207 1.00157.29 ATOM 111 CB SER X 15 -16.155 69.334 45.826 1.00155.81 ATOM 112 OG SER X 15 -15.262 70.166 46.563 1.00154.39 ATOM 113 N GLY X 16 -15.508 68.468 42.780 1.00157.98 ATOM 114 CA GLY X 16 -14.543 68.146 41.753 1.00159.02 ATOM 115 C GLY X 16 -14.756 69.218 40.703 1.00159.94 ATOM 116 O GLY X 16 -13.840 69.963 40.360 1.00160.51 ATOM 117 N ALA X 17 -15.987 69.308 40.209 1.00159.97 ATOM 118 CA ALA X 17 -16.350 70.291 39.194 1.00159.91 ATOM 119 C ALA X 17 -16.002 71.713 39.629 1.00159.83 ATOM 120 O ALA X 17 -15.469 72.491 38.843 1.00159.95 ATOM 121 CB ALA X 17 -17.844 70.188 38.883 1.00160.28 ATOM 122 N VAL X 18 -16.306 72.041 40.882 1.00159.66 ATOM 123 CA VAL X 18 -16.037 73.364 41.440 1.00159.90 ATOM 124 C VAL X 18 -14.588 73.785 41.206 1.00159.69 ATOM 125 O VAL X 18 -14.319 74.935 40.861 1.00160.41 ATOM 126 CB VAL X 18 -16.337 73.412 42.977 1.00160.36 ATOM 127 CG1 VAL X 18 -15.081 73.806 43.766 1.00160.58 ATOM 128 CG2 VAL X 18 -17.455 74.407 43.265 1.00160.56 ATOM 129 N VAL X 19 -13.656 72.862 41.403 1.00158.82 ATOM 130 CA VAL X 19 -12.259 73.182 41.208 1.00158.42 ATOM 131 C VAL X 19 -11.903 73.194 39.729 1.00158.45 ATOM 132 O VAL X 19 -10.890 73.752 39.337 1.00158.17 ATOM 133 CB VAL X 19 -11.373 72.180 41.908 1.00158.14 ATOM 134 CG1 VAL X 19 -11.418 70.865 41.178 1.00158.97 ATOM 135 CG2 VAL X 19 -9.972 72.712 41.974 1.00158.26 ATOM 136 N LEU X 20 -12.732 72.548 38.919 1.00158.81 ATOM 137 CA LEU X 20 -12.530 72.505 37.474 1.00159.11 ATOM 138 C LEU X 20 -13.024 73.839 36.886 1.00158.97 ATOM 139 O LEU X 20 -12.292 74.520 36.161 1.00158.71 ATOM 140 CB LEU X 20 -13.313 71.324 36.872 1.00158.76 ATOM 141 CG LEU X 20 -12.596 70.223 36.075 1.00158.15 ATOM 142 CD1 LEU X 20 -12.672 70.491 34.582 1.00157.31 ATOM 143 CD2 LEU X 20 -11.162 70.108 36.550 1.00157.55 ATOM 144 N GLY X 21 -14.266 74.199 37.215 1.00158.57 ATOM 145 CA GLY X 21 -14.869 75.435 36.744 1.00157.59 ATOM 146 C GLY X 21 -14.088 76.671 37.128 1.00157.28 ATOM 147 O GLY X 21 -13.964 77.592 36.332 1.00157.57 ATOM 148 N LEU X 22 -13.566 76.697 38.349 1.00156.84 ATOM 149 CA LEU X 22 -12.791 77.835 38.823 1.00156.65 ATOM 150 C LEU X 22 -11.377 77.836 38.241 1.00157.00 ATOM 151 O LEU X 22 -10.917 78.853 37.731 1.00157.24 ATOM 152 CB LEU X 22 -12.739 77.837 40.356 1.00155.78 ATOM 153 CG LEU X 22 -13.386 79.021 41.086 1.00155.02 ATOM 154 CD1 LEU X 22 -14.672 79.451 40.401 1.00155.01 ATOM 155 CD2 LEU X 22 -13.659 78.630 42.515 1.00154.86 ATOM 156 N THR X 23 -10.694 76.700 38.286 1.00157.45 ATOM 157 CA THR X 23 -9.345 76.643 37.751 1.00158.20 ATOM 158 C THR X 23 -9.384 76.943 36.262 1.00158.44 ATOM 159 O THR X 23 -8.608 77.744 35.757 1.00159.26 ATOM 160 CB THR X 23 -8.710 75.251 37.926 1.00158.42 ATOM 161 OG1 THR X 23 -7.325 75.314 37.561 1.00158.59 ATOM 162 CG2 THR X 23 -9.407 74.220 37.036 1.00158.19 ATOM 163 N PHE X 24 -10.305 76.294 35.565 1.00157.92 ATOM 164 CA PHE X 24 -10.439 76.474 34.133 1.00157.32 ATOM 165 C PHE X 24 -10.957 77.850 33.706 1.00156.27 ATOM 166 O PHE X 24 -10.551 78.374 32.665 1.00155.91 ATOM 167 CB PHE X 24 -11.323 75.364 33.573 1.00158.61 ATOM 168 CG PHE X 24 -10.569 74.330 32.804 1.00159.94 ATOM 169 CD1 PHE X 24 -9.232 74.080 33.076 1.00159.95 ATOM 170 CD2 PHE X 24 -11.195 73.611 31.790 1.00160.74 ATOM 171 CE1 PHE X 24 -8.528 73.130 32.344 1.00160.52 ATOM 172 CE2 PHE X 24 -10.504 72.657 31.050 1.00160.89 ATOM 173 CZ PHE X 24 -9.169 72.415 31.324 1.00160.83 ATOM 174 N ALA X 25 -11.852 78.430 34.503 1.00154.95 ATOM 175 CA ALA X 25 -12.407 79.748 34.190 1.00153.26 ATOM 176 C ALA X 25 -11.424 80.871 34.520 1.00151.72 ATOM 177 O ALA X 25 -11.555 81.983 34.018 1.00151.71 ATOM 178 CB ALA X 25 -13.727 79.975 34.936 1.00153.26 ATOM 179 N VAL X 26 -10.453 80.586 35.377 1.00149.75 ATOM 180 CA VAL X 26 -9.457 81.584 35.727 1.00148.27 ATOM 181 C VAL X 26 -8.237 81.425 34.811 1.00148.38 ATOM 182 O VAL X 26 -7.403 82.322 34.703 1.00147.87 ATOM 183 CB VAL X 26 -9.021 81.438 37.195 1.00147.29 ATOM 184 CG1 VAL X 26 -7.731 82.199 37.448 1.00146.41 ATOM 185 CG2 VAL X 26 -10.101 81.966 38.091 1.00146.74 ATOM 186 N LEU X 27 -8.159 80.281 34.137 1.00148.83 ATOM 187 CA LEU X 27 -7.050 79.990 33.239 1.00149.23 ATOM 188 C LEU X 27 -7.178 80.724 31.914 1.00149.61 ATOM 189 O LEU X 27 -6.173 81.078 31.315 1.00149.85 ATOM 190 CB LEU X 27 -6.948 78.490 32.945 1.00149.41 ATOM 191 CG LEU X 27 -5.697 77.736 33.412 1.00149.35 ATOM 192 CD1 LEU X 27 -4.490 78.664 33.450 1.00149.24 ATOM 193 CD2 LEU X 27 -5.955 77.142 34.780 1.00149.45 ATOM 194 N ILE X 28 -8.406 80.926 31.447 1.00150.46 ATOM 195 CA ILE X 28 -8.587 81.634 30.200 1.00151.36 ATOM 196 C ILE X 28 -8.719 83.145 30.451 1.00152.23 ATOM 197 O ILE X 28 -8.575 83.961 29.531 1.00152.34 ATOM 198 CB ILE X 28 -9.807 81.110 29.393 1.00150.81 ATOM 199 CG1 ILE X 28 -10.460 79.912 30.105 1.00150.31 ATOM 200 CG2 ILE X 28 -9.358 80.719 27.994 1.00149.92 ATOM 201 CD1 ILE X 28 -11.507 80.287 31.140 1.00150.06 ATOM 202 N ALA X 29 -8.966 83.529 31.698 1.00152.60 ATOM 203 CA ALA X 29 -9.058 84.935 32.002 1.00152.62 ATOM 204 C ALA X 29 -7.676 85.461 31.678 1.00152.93 ATOM 205 O ALA X 29 -7.518 86.409 30.909 1.00153.53 ATOM 206 CB ALA X 29 -9.383 85.137 33.476 1.00152.01 ATOM 207 N ILE X 30 -6.660 84.811 32.235 1.00153.18 ATOM 208 CA ILE X 30 -5.270 85.210 32.005 1.00153.55 ATOM 209 C ILE X 30 -4.792 84.779 30.614 1.00153.96 ATOM 210 O ILE X 30 -3.811 85.309 30.087 1.00153.86 ATOM 211 CB ILE X 30 -4.344 84.649 33.093 1.00153.38 ATOM 212 CG1 ILE X 30 -4.621 85.368 34.414 1.00153.45 ATOM 213 CG2 ILE X 30 -2.881 84.777 32.684 1.00153.34 ATOM 214 CD1 ILE X 30 -3.586 85.206 35.516 1.00153.11 ATOM 215 N SER X 31 -5.478 83.785 30.049 1.00154.86 ATOM 216 CA SER X 31 -5.194 83.322 28.698 1.00155.51 ATOM 217 C SER X 31 -5.209 84.510 27.793 1.00155.77 ATOM 218 O SER X 31 -4.178 84.898 27.223 1.00156.74 ATOM 219 CB SER X 31 -6.233 82.300 28.255 1.00155.63 ATOM 220 OG SER X 31 -6.054 81.083 28.915 1.00157.29 ATOM 221 N GLN X 32 -6.407 85.057 27.624 1.00155.33 ATOM 222 CA GLN X 32 -6.558 86.237 26.790 1.00154.87 ATOM 223 C GLN X 32 -6.528 87.528 27.612 1.00153.81 ATOM 224 O GLN X 32 -7.549 88.031 28.077 1.00153.71 ATOM 225 CB GLN X 32 -7.809 86.212 25.910 1.00154.90 ATOM 226 CG GLN X 32 -7.953 87.480 25.012 1.00155.47 ATOM 227 CD GLN X 32 -6.760 87.711 24.052 1.00155.13 ATOM 228 OE1 GLN X 32 -6.803 87.351 22.867 1.00154.38 ATOM 229 NE2 GLN X 32 -5.697 88.321 24.573 1.00154.36 ATOM 230 N ILE X 33 -5.310 88.029 27.794 1.00152.14 ATOM 231 CA ILE X 33 -4.999 89.266 28.474 1.00150.44 ATOM 232 C ILE X 33 -3.537 89.476 28.138 1.00150.79 ATOM 233 O ILE X 33 -2.842 90.253 28.784 1.00150.82 ATOM 234 CB ILE X 33 -5.223 89.195 29.986 1.00149.41 ATOM 235 CG1 ILE X 33 -6.722 89.343 30.281 1.00148.54 ATOM 236 CG2 ILE X 33 -4.504 90.313 30.685 1.00148.97 ATOM 237 CD1 ILE X 33 -7.084 89.272 31.740 1.00148.58 ATOM 238 N ASP X 34 -3.090 88.750 27.110 1.00151.57 ATOM 239 CA ASP X 34 -1.729 88.815 26.586 1.00152.88 ATOM 240 C ASP X 34 -1.361 87.552 25.800 1.00152.72 ATOM 241 O ASP X 34 -2.252 86.701 25.616 1.00152.16 ATOM 242 CB ASP X 34 -0.702 89.090 27.714 1.00154.00 ATOM 243 CG ASP X 34 -0.181 87.832 28.373 1.00154.60 ATOM 244 OD1 ASP X 34 -0.831 86.773 28.249 1.00154.80 ATOM 245 OD2 ASP X 34 0.877 87.909 29.032 1.00154.09 ATOM 246 OXT ASP X 34 -0.193 87.446 25.358 1.00152.58 TER