HEADER PHOTOSYNTHETIC REACTION CENTER 10-NOV-94 1PCR TITLE STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTRE FROM RHODOBACTER TITLE 2 SPHAEROIDES AT 2.65 ANGSTROMS RESOLUTION: COFACTORS AND TITLE 3 PROTEIN-COFACTOR INTERACTIONS COMPND MOL_ID: 3; COMPND 2 MOLECULE: PHOTOSYNTHETIC REACTION CENTER; COMPND 3 CHAIN: H; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 PHOTOSYNTHETIC REACTION CENTER; COMPND 7 CHAIN: M; COMPND 8 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.65 ANGSTORMS DBREF 1PCR H 1 260 UNP P11846 RCEH_RHOSH 1 260 DBREF 1PCR M 1 307 UNP P02953 RCEM_RHOSH 1 307 SEQRES 1 H 25 ASP LEU ALA SER LEU ALA ILE TYR SER PHE TRP ILE PHE SEQRES 2 H 25 LEU ALA GLY LEU ILE TYR TYR LEU GLN THR GLU ASN ATOM 1 N ASP H 11 28.135 115.853 21.019 1.00 62.79 ATOM 2 CA ASP H 11 29.337 115.562 21.840 1.00 62.07 ATOM 3 C ASP H 11 29.762 114.108 21.704 1.00 60.47 ATOM 4 O ASP H 11 29.063 113.294 21.090 1.00 59.21 ATOM 5 CB ASP H 11 29.115 115.947 23.327 1.00 66.44 ATOM 6 CG ASP H 11 28.190 114.976 24.100 1.00 71.92 ATOM 7 OD1 ASP H 11 27.454 114.165 23.484 1.00 68.39 ATOM 8 OD2 ASP H 11 28.151 115.093 25.354 1.00 72.70 ATOM 9 N LEU H 12 30.938 113.810 22.239 1.00 56.75 ATOM 10 CA LEU H 12 31.533 112.502 22.103 1.00 53.51 ATOM 11 C LEU H 12 30.492 111.431 22.294 1.00 46.94 ATOM 12 O LEU H 12 30.271 110.639 21.398 1.00 46.96 ATOM 13 CB LEU H 12 32.639 112.314 23.132 1.00 58.72 ATOM 14 CG LEU H 12 33.993 111.906 22.558 1.00 61.29 ATOM 15 CD1 LEU H 12 33.857 110.743 21.550 1.00 63.12 ATOM 16 CD2 LEU H 12 34.585 113.127 21.902 1.00 62.57 ATOM 17 N ALA H 13 29.763 111.515 23.402 1.00 41.45 ATOM 18 CA ALA H 13 28.733 110.533 23.723 1.00 36.09 ATOM 19 C ALA H 13 27.864 110.249 22.519 1.00 31.11 ATOM 20 O ALA H 13 27.834 109.137 22.009 1.00 30.77 ATOM 21 CB ALA H 13 27.875 111.024 24.865 1.00 33.63 ATOM 22 N SER H 14 27.266 111.290 21.977 1.00 31.39 ATOM 23 CA SER H 14 26.346 111.093 20.873 1.00 37.32 ATOM 24 C SER H 14 27.077 110.545 19.651 1.00 36.37 ATOM 25 O SER H 14 26.511 109.767 18.886 1.00 35.03 ATOM 26 CB SER H 14 25.646 112.402 20.533 1.00 37.58 ATOM 27 OG SER H 14 26.123 113.433 21.382 1.00 47.63 ATOM 28 N LEU H 15 28.349 110.910 19.501 1.00 37.24 ATOM 29 CA LEU H 15 29.145 110.385 18.403 1.00 37.02 ATOM 30 C LEU H 15 29.323 108.892 18.630 1.00 32.92 ATOM 31 O LEU H 15 28.961 108.091 17.773 1.00 31.19 ATOM 32 CB LEU H 15 30.526 111.056 18.328 1.00 46.76 ATOM 33 CG LEU H 15 31.577 110.248 17.530 1.00 54.38 ATOM 34 CD1 LEU H 15 31.439 110.549 16.049 1.00 53.74 ATOM 35 CD2 LEU H 15 33.002 110.530 18.011 1.00 59.29 ATOM 36 N ALA H 16 29.792 108.533 19.823 1.00 24.49 ATOM 37 CA ALA H 16 30.135 107.162 20.142 1.00 24.41 ATOM 38 C ALA H 16 28.914 106.248 19.946 1.00 26.51 ATOM 39 O ALA H 16 28.974 105.266 19.186 1.00 26.25 ATOM 40 CB ALA H 16 30.654 107.073 21.563 1.00 2.06 ATOM 41 N ILE H 17 27.772 106.660 20.481 1.00 23.76 ATOM 42 CA ILE H 17 26.581 105.804 20.437 1.00 36.03 ATOM 43 C ILE H 17 26.002 105.576 19.016 1.00 35.16 ATOM 44 O ILE H 17 25.495 104.488 18.684 1.00 31.69 ATOM 45 CB ILE H 17 25.455 106.329 21.423 1.00 38.02 ATOM 46 CG1 ILE H 17 24.253 105.387 21.382 1.00 30.80 ATOM 47 CG2 ILE H 17 25.040 107.773 21.089 1.00 37.27 ATOM 48 CD1 ILE H 17 24.558 104.033 21.977 1.00 31.38 ATOM 49 N TYR H 18 26.124 106.596 18.178 1.00 35.13 ATOM 50 CA TYR H 18 25.628 106.540 16.819 1.00 36.70 ATOM 51 C TYR H 18 26.584 105.636 16.029 1.00 31.45 ATOM 52 O TYR H 18 26.160 104.715 15.325 1.00 29.97 ATOM 53 CB TYR H 18 25.553 107.980 16.278 1.00 45.47 ATOM 54 CG TYR H 18 25.534 108.147 14.771 1.00 61.82 ATOM 55 CD1 TYR H 18 24.383 107.876 14.027 1.00 68.58 ATOM 56 CD2 TYR H 18 26.645 108.672 14.097 1.00 69.61 ATOM 57 CE1 TYR H 18 24.333 108.134 12.646 1.00 76.93 ATOM 58 CE2 TYR H 18 26.615 108.924 12.721 1.00 77.84 ATOM 59 CZ TYR H 18 25.454 108.661 11.998 1.00 81.00 ATOM 60 OH TYR H 18 25.409 108.955 10.643 1.00 85.00 ATOM 61 N SER H 19 27.865 105.771 16.339 1.00 30.04 ATOM 62 CA SER H 19 28.904 104.897 15.822 1.00 26.66 ATOM 63 C SER H 19 28.593 103.443 16.139 1.00 26.42 ATOM 64 O SER H 19 28.667 102.575 15.278 1.00 22.60 ATOM 65 CB SER H 19 30.241 105.258 16.456 1.00 27.74 ATOM 66 OG SER H 19 30.560 106.607 16.203 1.00 37.84 ATOM 67 N PHE H 20 28.232 103.190 17.384 1.00 26.05 ATOM 68 CA PHE H 20 28.076 101.837 17.835 1.00 23.82 ATOM 69 C PHE H 20 26.880 101.216 17.136 1.00 23.30 ATOM 70 O PHE H 20 26.990 100.159 16.553 1.00 29.02 ATOM 71 CB PHE H 20 27.906 101.804 19.346 1.00 23.74 ATOM 72 CG PHE H 20 27.796 100.432 19.900 1.00 25.82 ATOM 73 CD1 PHE H 20 28.938 99.709 20.198 1.00 31.02 ATOM 74 CD2 PHE H 20 26.562 99.794 19.962 1.00 25.20 ATOM 75 CE1 PHE H 20 28.848 98.361 20.529 1.00 32.11 ATOM 76 CE2 PHE H 20 26.468 98.450 20.282 1.00 25.40 ATOM 77 CZ PHE H 20 27.607 97.731 20.563 1.00 24.83 ATOM 78 N TRP H 21 25.761 101.911 17.081 1.00 28.33 ATOM 79 CA TRP H 21 24.611 101.338 16.387 1.00 29.93 ATOM 80 C TRP H 21 24.905 100.982 14.947 1.00 30.44 ATOM 81 O TRP H 21 24.161 100.229 14.331 1.00 38.34 ATOM 82 CB TRP H 21 23.420 102.279 16.442 1.00 26.03 ATOM 83 CG TRP H 21 22.720 102.155 17.731 1.00 27.94 ATOM 84 CD1 TRP H 21 22.761 103.025 18.790 1.00 28.95 ATOM 85 CD2 TRP H 21 21.930 101.050 18.147 1.00 25.36 ATOM 86 NE1 TRP H 21 22.036 102.512 19.846 1.00 13.55 ATOM 87 CE2 TRP H 21 21.517 101.299 19.470 1.00 22.88 ATOM 88 CE3 TRP H 21 21.545 99.859 17.535 1.00 29.46 ATOM 89 CZ2 TRP H 21 20.734 100.399 20.186 1.00 23.50 ATOM 90 CZ3 TRP H 21 20.779 98.965 18.247 1.00 35.06 ATOM 91 CH2 TRP H 21 20.378 99.240 19.563 1.00 35.02 ATOM 92 N ILE H 22 25.954 101.570 14.398 1.00 26.66 ATOM 93 CA ILE H 22 26.336 101.278 13.038 1.00 28.85 ATOM 94 C ILE H 22 27.213 100.039 13.023 1.00 28.53 ATOM 95 O ILE H 22 27.020 99.139 12.216 1.00 27.25 ATOM 96 CB ILE H 22 27.113 102.443 12.430 1.00 35.74 ATOM 97 CG1 ILE H 22 26.188 103.659 12.262 1.00 39.77 ATOM 98 CG2 ILE H 22 27.719 102.018 11.109 1.00 37.53 ATOM 99 CD1 ILE H 22 26.850 104.862 11.588 1.00 34.92 ATOM 100 N PHE H 23 28.217 100.025 13.886 1.00 24.75 ATOM 101 CA PHE H 23 29.021 98.841 14.091 1.00 23.01 ATOM 102 C PHE H 23 28.146 97.603 14.235 1.00 23.37 ATOM 103 O PHE H 23 28.256 96.655 13.469 1.00 28.01 ATOM 104 CB PHE H 23 29.862 99.004 15.339 1.00 21.57 ATOM 105 CG PHE H 23 30.598 97.769 15.712 1.00 28.99 ATOM 106 CD1 PHE H 23 31.599 97.291 14.905 1.00 22.80 ATOM 107 CD2 PHE H 23 30.219 97.030 16.820 1.00 33.92 ATOM 108 CE1 PHE H 23 32.199 96.116 15.186 1.00 26.58 ATOM 109 CE2 PHE H 23 30.830 95.836 17.111 1.00 26.00 ATOM 110 CZ PHE H 23 31.812 95.382 16.298 1.00 32.07 ATOM 111 N LEU H 24 27.216 97.679 15.167 1.00 25.54 ATOM 112 CA LEU H 24 26.344 96.582 15.531 1.00 31.55 ATOM 113 C LEU H 24 25.551 96.058 14.347 1.00 32.85 ATOM 114 O LEU H 24 25.310 94.846 14.224 1.00 36.60 ATOM 115 CB LEU H 24 25.388 97.057 16.620 1.00 35.72 ATOM 116 CG LEU H 24 24.483 96.086 17.377 1.00 40.72 ATOM 117 CD1 LEU H 24 25.227 94.815 17.757 1.00 34.16 ATOM 118 CD2 LEU H 24 23.965 96.811 18.638 1.00 47.72 ATOM 119 N ALA H 25 25.148 96.964 13.467 1.00 31.52 ATOM 120 CA ALA H 25 24.359 96.574 12.297 1.00 32.96 ATOM 121 C ALA H 25 25.164 95.739 11.258 1.00 35.08 ATOM 122 O ALA H 25 24.671 94.734 10.748 1.00 37.48 ATOM 123 CB ALA H 25 23.763 97.818 11.649 1.00 22.49 ATOM 124 N GLY H 26 26.427 96.095 11.023 1.00 33.08 ATOM 125 CA GLY H 26 27.247 95.356 10.077 1.00 30.82 ATOM 126 C GLY H 26 27.732 94.049 10.664 1.00 33.48 ATOM 127 O GLY H 26 27.963 93.053 9.951 1.00 32.94 ATOM 128 N LEU H 27 27.879 94.067 11.985 1.00 29.10 ATOM 129 CA LEU H 27 28.173 92.874 12.738 1.00 23.57 ATOM 130 C LEU H 27 27.056 91.824 12.621 1.00 22.34 ATOM 131 O LEU H 27 27.340 90.667 12.343 1.00 25.48 ATOM 132 CB LEU H 27 28.415 93.238 14.194 1.00 19.83 ATOM 133 CG LEU H 27 28.264 92.022 15.099 1.00 21.64 ATOM 134 CD1 LEU H 27 29.505 91.131 15.043 1.00 25.93 ATOM 135 CD2 LEU H 27 27.995 92.493 16.486 1.00 23.73 ATOM 136 N ILE H 28 25.800 92.208 12.857 1.00 21.88 ATOM 137 CA ILE H 28 24.681 91.269 12.698 1.00 20.13 ATOM 138 C ILE H 28 24.706 90.711 11.279 1.00 21.73 ATOM 139 O ILE H 28 24.294 89.579 11.012 1.00 22.33 ATOM 140 CB ILE H 28 23.311 91.968 12.951 1.00 17.43 ATOM 141 CG1 ILE H 28 22.837 91.686 14.362 1.00 17.29 ATOM 142 CG2 ILE H 28 22.228 91.450 12.016 1.00 6.32 ATOM 143 CD1 ILE H 28 22.753 92.910 15.173 1.00 23.13 ATOM 144 N TYR H 29 25.128 91.563 10.360 1.00 22.06 ATOM 145 CA TYR H 29 25.045 91.251 8.959 1.00 22.90 ATOM 146 C TYR H 29 26.105 90.198 8.697 1.00 21.69 ATOM 147 O TYR H 29 25.793 89.068 8.320 1.00 23.36 ATOM 148 CB TYR H 29 25.311 92.513 8.163 1.00 24.51 ATOM 149 CG TYR H 29 25.417 92.266 6.689 1.00 33.45 ATOM 150 CD1 TYR H 29 24.276 92.162 5.898 1.00 33.96 ATOM 151 CD2 TYR H 29 26.658 92.037 6.099 1.00 34.65 ATOM 152 CE1 TYR H 29 24.367 91.812 4.563 1.00 40.47 ATOM 153 CE2 TYR H 29 26.762 91.688 4.777 1.00 36.95 ATOM 154 CZ TYR H 29 25.618 91.560 4.018 1.00 43.30 ATOM 155 OH TYR H 29 25.734 91.037 2.759 1.00 53.27 ATOM 156 N TYR H 30 27.347 90.550 9.016 1.00 17.33 ATOM 157 CA TYR H 30 28.394 89.575 9.160 1.00 10.35 ATOM 158 C TYR H 30 27.863 88.291 9.761 1.00 8.23 ATOM 159 O TYR H 30 27.876 87.252 9.107 1.00 9.50 ATOM 160 CB TYR H 30 29.476 90.102 10.067 1.00 20.07 ATOM 161 CG TYR H 30 30.432 89.018 10.521 1.00 23.03 ATOM 162 CD1 TYR H 30 31.329 88.432 9.626 1.00 24.74 ATOM 163 CD2 TYR H 30 30.474 88.622 11.823 1.00 9.74 ATOM 164 CE1 TYR H 30 32.238 87.490 10.025 1.00 25.32 ATOM 165 CE2 TYR H 30 31.406 87.697 12.236 1.00 26.01 ATOM 166 CZ TYR H 30 32.287 87.135 11.338 1.00 26.86 ATOM 167 OH TYR H 30 33.262 86.271 11.778 1.00 27.03 ATOM 168 N LEU H 31 27.542 88.340 11.045 1.00 6.48 ATOM 169 CA LEU H 31 27.034 87.173 11.766 1.00 11.68 ATOM 170 C LEU H 31 26.075 86.369 10.947 1.00 14.42 ATOM 171 O LEU H 31 26.253 85.168 10.801 1.00 25.02 ATOM 172 CB LEU H 31 26.320 87.572 13.054 1.00 16.51 ATOM 173 CG LEU H 31 27.183 87.904 14.276 1.00 23.88 ATOM 174 CD1 LEU H 31 26.410 88.796 15.215 1.00 26.95 ATOM 175 CD2 LEU H 31 27.581 86.644 15.001 1.00 30.82 ATOM 176 N GLN H 32 25.111 87.035 10.327 1.00 14.20 ATOM 177 CA GLN H 32 24.017 86.316 9.734 1.00 12.44 ATOM 178 C GLN H 32 24.493 85.604 8.493 1.00 17.28 ATOM 179 O GLN H 32 24.073 84.477 8.241 1.00 21.68 ATOM 180 CB GLN H 32 22.863 87.243 9.377 1.00 16.30 ATOM 181 CG GLN H 32 21.765 86.542 8.568 1.00 7.61 ATOM 182 CD GLN H 32 21.123 85.423 9.359 1.00 20.53 ATOM 183 OE1 GLN H 32 21.045 85.479 10.589 1.00 23.85 ATOM 184 NE2 GLN H 32 20.748 84.356 8.667 1.00 31.42 ATOM 185 N THR H 33 25.319 86.263 7.681 1.00 19.77 ATOM 186 CA THR H 33 25.777 85.637 6.425 1.00 25.02 ATOM 187 C THR H 33 26.691 84.472 6.747 1.00 24.99 ATOM 188 O THR H 33 26.653 83.439 6.081 1.00 31.87 ATOM 189 CB THR H 33 26.564 86.589 5.506 1.00 21.15 ATOM 190 OG1 THR H 33 27.609 87.228 6.254 1.00 37.07 ATOM 191 CG2 THR H 33 25.656 87.623 4.906 1.00 25.21 ATOM 192 N GLU H 34 27.425 84.606 7.843 1.00 23.92 ATOM 193 CA GLU H 34 28.288 83.551 8.333 1.00 16.38 ATOM 194 C GLU H 34 27.470 82.324 8.726 1.00 13.25 ATOM 195 O GLU H 34 27.929 81.211 8.602 1.00 17.21 ATOM 196 CB GLU H 34 29.069 84.087 9.516 1.00 13.71 ATOM 197 CG GLU H 34 30.313 83.344 9.835 1.00 23.24 ATOM 198 CD GLU H 34 31.296 83.330 8.703 1.00 29.12 ATOM 199 OE1 GLU H 34 31.493 84.389 8.059 1.00 18.25 ATOM 200 OE2 GLU H 34 31.844 82.230 8.444 1.00 36.47 ATOM 201 N ASN H 35 26.211 82.513 9.086 1.00 14.67 ATOM 202 CA ASN H 35 25.358 81.380 9.457 1.00 17.74 ATOM 203 C ASN H 35 24.590 80.808 8.261 1.00 19.29 ATOM 204 O ASN H 35 23.581 80.077 8.414 1.00 14.67 ATOM 205 CB ASN H 35 24.361 81.813 10.522 1.00 17.85 ATOM 206 CG ASN H 35 24.961 81.823 11.877 1.00 22.56 ATOM 207 OD1 ASN H 35 24.998 80.796 12.560 1.00 16.58 ATOM 208 ND2 ASN H 35 25.524 82.964 12.256 1.00 20.17 TER ATOM 1 N1 LDA M 701 19.167 101.705 24.410 1.00 52.53 ATOM 2 O1 LDA M 701 19.385 101.827 25.596 1.00 58.71 ATOM 3 CM1 LDA M 701 18.034 102.573 24.014 1.00 47.97 ATOM 4 CM2 LDA M 701 20.355 102.115 23.674 1.00 49.47 ATOM 5 C1 LDA M 701 18.861 100.276 24.120 1.00 48.47 ATOM 6 C2 LDA M 701 17.896 99.141 23.762 1.00 41.20 ATOM 7 C3 LDA M 701 18.639 97.805 23.649 1.00 37.77 ATOM 8 C4 LDA M 701 18.274 97.046 22.373 1.00 39.65 ATOM 9 C5 LDA M 701 19.152 95.802 22.169 1.00 44.34 ATOM 10 C6 LDA M 701 18.857 95.128 20.838 1.00 42.45 ATOM 11 C7 LDA M 701 20.116 94.592 20.218 1.00 47.53 ATOM 12 C8 LDA M 701 20.478 93.195 20.747 1.00 51.03 ATOM 13 C9 LDA M 701 21.793 92.687 20.103 1.00 48.91 ATOM 14 C10 LDA M 701 21.695 91.262 19.517 1.00 40.35 ATOM 15 C11 LDA M 701 22.868 90.961 18.563 1.00 40.74 ATOM 16 C12 LDA M 701 24.017 90.178 19.201 1.00 29.22 ATOM 17 N1 LDA M 703 16.135 83.499 6.221 1.00 51.92 ATOM 18 O1 LDA M 703 15.057 83.013 5.912 1.00 55.75 ATOM 19 CM1 LDA M 703 16.776 82.686 7.214 1.00 60.90 ATOM 20 CM2 LDA M 703 17.037 83.575 5.083 1.00 51.29 ATOM 21 C1 LDA M 703 15.958 84.829 6.771 1.00 46.59 ATOM 22 C2 LDA M 703 17.042 85.462 7.601 1.00 35.64 ATOM 23 C3 LDA M 703 16.478 86.416 8.601 1.00 34.30 ATOM 24 C4 LDA M 703 17.591 86.905 9.510 1.00 36.71 ATOM 25 C5 LDA M 703 17.031 87.798 10.591 1.00 38.06 ATOM 26 C6 LDA M 703 18.110 88.222 11.565 1.00 42.86 ATOM 27 C7 LDA M 703 17.508 89.033 12.711 1.00 46.64 ATOM 28 C8 LDA M 703 18.554 89.400 13.749 1.00 50.59 ATOM 29 C9 LDA M 703 18.177 88.855 15.118 1.00 55.04 ATOM 30 C10 LDA M 703 17.913 89.970 16.123 1.00 61.78 ATOM 31 C11 LDA M 703 18.505 89.633 17.488 1.00 64.00 ATOM 32 C12 LDA M 703 18.588 90.870 18.350 1.00 67.40 TER