HEADER PHOTOSYNTHESIS 23-AUG-00 1FNP TITLE CRYSTAL STRUCTURE ANALYSIS OF THE MUTANT REACTION CENTER PRO L209-> TITLE 2 PHE FROM THE PHOTOSYNTHETIC PURPLE BACTERIUM RHODOBACTER SPHAEROIDES COMPND MOL_ID: 3; COMPND 2 MOLECULE: REACTION CENTER PROTEIN H CHAIN; COMPND 3 CHAIN: H; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 REACTION CENTER PROTEIN M CHAIN; COMPND 7 CHAIN: M; COMPND 8 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.60 ANGSTORMS DBREF 1FNP H 1 260 UNP P11846 RCEH_RHOSH 1 260 DBREF 1FNP M 0 306 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 27.829 115.923 21.059 1.00 71.96 ATOM 2 CA ASP H 11 29.192 115.853 21.660 1.00 71.91 ATOM 3 C ASP H 11 29.815 114.473 21.465 1.00 71.65 ATOM 4 O ASP H 11 29.231 113.605 20.816 1.00 71.54 ATOM 5 CB ASP H 11 29.123 116.186 23.156 1.00 72.27 ATOM 6 CG ASP H 11 28.330 115.155 23.956 1.00 72.55 ATOM 7 OD1 ASP H 11 28.680 114.943 25.140 1.00 72.77 ATOM 8 OD2 ASP H 11 27.364 114.563 23.409 1.00 72.49 ATOM 9 N LEU H 12 30.956 114.261 22.115 1.00 71.43 ATOM 10 CA LEU H 12 31.682 112.999 22.065 1.00 71.21 ATOM 11 C LEU H 12 30.787 111.788 22.360 1.00 70.93 ATOM 12 O LEU H 12 30.862 110.778 21.659 1.00 71.03 ATOM 13 CB LEU H 12 32.846 113.039 23.058 1.00 71.48 ATOM 14 CG LEU H 12 34.174 112.374 22.671 1.00 71.85 ATOM 15 CD1 LEU H 12 34.010 110.847 22.599 1.00 72.02 ATOM 16 CD2 LEU H 12 34.667 112.931 21.335 1.00 71.96 ATOM 17 N ALA H 13 29.899 111.920 23.344 1.00 70.36 ATOM 18 CA ALA H 13 29.037 110.817 23.764 1.00 69.81 ATOM 19 C ALA H 13 28.053 110.372 22.686 1.00 69.47 ATOM 20 O ALA H 13 27.883 109.174 22.452 1.00 69.52 ATOM 21 CB ALA H 13 28.285 111.190 25.031 1.00 69.78 ATOM 22 N SER H 14 27.393 111.332 22.044 1.00 69.03 ATOM 23 CA SER H 14 26.396 111.015 21.023 1.00 68.48 ATOM 24 C SER H 14 27.029 110.673 19.675 1.00 68.10 ATOM 25 O SER H 14 26.348 110.181 18.774 1.00 68.01 ATOM 26 CB SER H 14 25.389 112.165 20.863 1.00 68.45 ATOM 27 OG SER H 14 26.035 113.423 20.850 1.00 68.46 ATOM 28 N LEU H 15 28.326 110.935 19.539 1.00 67.64 ATOM 29 CA LEU H 15 29.078 110.462 18.382 1.00 67.22 ATOM 30 C LEU H 15 29.396 108.986 18.580 1.00 66.70 ATOM 31 O LEU H 15 29.278 108.181 17.652 1.00 66.55 ATOM 32 CB LEU H 15 30.384 111.250 18.218 1.00 67.63 ATOM 33 CG LEU H 15 31.270 110.825 17.036 1.00 67.95 ATOM 34 CD1 LEU H 15 30.638 111.282 15.721 1.00 67.97 ATOM 35 CD2 LEU H 15 32.673 111.409 17.195 1.00 68.13 ATOM 36 N ALA H 16 29.755 108.640 19.815 1.00 66.01 ATOM 37 CA ALA H 16 30.076 107.271 20.183 1.00 65.20 ATOM 38 C ALA H 16 28.861 106.360 20.010 1.00 64.69 ATOM 39 O ALA H 16 28.947 105.327 19.344 1.00 64.49 ATOM 40 CB ALA H 16 30.574 107.230 21.615 1.00 65.14 ATOM 41 N ILE H 17 27.712 106.794 20.522 1.00 64.06 ATOM 42 CA ILE H 17 26.515 105.960 20.496 1.00 63.57 ATOM 43 C ILE H 17 25.988 105.756 19.074 1.00 63.14 ATOM 44 O ILE H 17 25.599 104.649 18.701 1.00 63.15 ATOM 45 CB ILE H 17 25.400 106.530 21.432 1.00 63.57 ATOM 46 CG1 ILE H 17 24.247 105.534 21.559 1.00 63.48 ATOM 47 CG2 ILE H 17 24.878 107.848 20.912 1.00 63.67 ATOM 48 CD1 ILE H 17 24.610 104.268 22.303 1.00 63.44 ATOM 49 N TYR H 18 26.139 106.786 18.248 1.00 62.70 ATOM 50 CA TYR H 18 25.716 106.757 16.851 1.00 62.14 ATOM 51 C TYR H 18 26.636 105.826 16.056 1.00 61.45 ATOM 52 O TYR H 18 26.164 105.003 15.273 1.00 61.31 ATOM 53 CB TYR H 18 25.746 108.192 16.283 1.00 62.73 ATOM 54 CG TYR H 18 25.553 108.314 14.780 1.00 63.30 ATOM 55 CD1 TYR H 18 24.305 108.071 14.194 1.00 63.60 ATOM 56 CD2 TYR H 18 26.637 108.625 13.937 1.00 63.49 ATOM 57 CE1 TYR H 18 24.136 108.118 12.801 1.00 63.99 ATOM 58 CE2 TYR H 18 26.484 108.677 12.545 1.00 63.85 ATOM 59 CZ TYR H 18 25.230 108.416 11.980 1.00 64.10 ATOM 60 OH TYR H 18 25.068 108.407 10.604 1.00 64.26 ATOM 61 N SER H 19 27.942 105.941 16.298 1.00 60.71 ATOM 62 CA SER H 19 28.944 105.042 15.724 1.00 59.96 ATOM 63 C SER H 19 28.703 103.585 16.110 1.00 59.41 ATOM 64 O SER H 19 28.891 102.688 15.293 1.00 59.23 ATOM 65 CB SER H 19 30.349 105.440 16.184 1.00 60.09 ATOM 66 OG SER H 19 30.663 106.757 15.787 1.00 60.08 ATOM 67 N PHE H 20 28.367 103.355 17.377 1.00 58.77 ATOM 68 CA PHE H 20 28.114 102.010 17.871 1.00 58.17 ATOM 69 C PHE H 20 26.973 101.327 17.128 1.00 57.76 ATOM 70 O PHE H 20 27.082 100.163 16.752 1.00 57.70 ATOM 71 CB PHE H 20 27.804 102.028 19.366 1.00 58.17 ATOM 72 CG PHE H 20 27.711 100.656 19.972 1.00 58.16 ATOM 73 CD1 PHE H 20 26.476 100.013 20.071 1.00 58.12 ATOM 74 CD2 PHE H 20 28.870 99.928 20.240 1.00 58.17 ATOM 75 CE1 PHE H 20 26.397 98.667 20.399 1.00 58.10 ATOM 76 CE2 PHE H 20 28.804 98.583 20.565 1.00 58.19 ATOM 77 CZ PHE H 20 27.563 97.948 20.639 1.00 58.24 ATOM 78 N TRP H 21 25.874 102.042 16.942 1.00 57.33 ATOM 79 CA TRP H 21 24.715 101.490 16.252 1.00 56.96 ATOM 80 C TRP H 21 25.005 101.107 14.813 1.00 56.66 ATOM 81 O TRP H 21 24.342 100.232 14.257 1.00 56.64 ATOM 82 CB TRP H 21 23.553 102.481 16.295 1.00 57.05 ATOM 83 CG TRP H 21 22.802 102.387 17.563 1.00 57.19 ATOM 84 CD1 TRP H 21 22.888 103.230 18.624 1.00 57.20 ATOM 85 CD2 TRP H 21 21.961 101.304 17.974 1.00 57.24 ATOM 86 NE1 TRP H 21 22.168 102.732 19.685 1.00 57.22 ATOM 87 CE2 TRP H 21 21.580 101.555 19.308 1.00 57.19 ATOM 88 CE3 TRP H 21 21.496 100.143 17.345 1.00 57.24 ATOM 89 CZ2 TRP H 21 20.752 100.691 20.024 1.00 57.19 ATOM 90 CZ3 TRP H 21 20.677 99.284 18.056 1.00 57.28 ATOM 91 CH2 TRP H 21 20.311 99.564 19.384 1.00 57.30 ATOM 92 N ILE H 22 25.971 101.787 14.203 1.00 56.18 ATOM 93 CA ILE H 22 26.373 101.469 12.840 1.00 55.80 ATOM 94 C ILE H 22 27.285 100.246 12.845 1.00 55.26 ATOM 95 O ILE H 22 27.150 99.363 12.002 1.00 55.28 ATOM 96 CB ILE H 22 27.099 102.666 12.169 1.00 55.98 ATOM 97 CG1 ILE H 22 26.146 103.867 12.065 1.00 56.09 ATOM 98 CG2 ILE H 22 27.607 102.265 10.781 1.00 55.92 ATOM 99 CD1 ILE H 22 26.789 105.125 11.490 1.00 56.01 ATOM 100 N PHE H 23 28.194 100.201 13.814 1.00 54.70 ATOM 101 CA PHE H 23 29.030 99.035 14.055 1.00 54.17 ATOM 102 C PHE H 23 28.168 97.794 14.229 1.00 53.86 ATOM 103 O PHE H 23 28.318 96.827 13.491 1.00 53.81 ATOM 104 CB PHE H 23 29.888 99.252 15.305 1.00 54.25 ATOM 105 CG PHE H 23 30.614 98.018 15.769 1.00 54.42 ATOM 106 CD1 PHE H 23 30.202 97.340 16.919 1.00 54.37 ATOM 107 CD2 PHE H 23 31.672 97.495 15.027 1.00 54.34 ATOM 108 CE1 PHE H 23 30.823 96.159 17.315 1.00 54.27 ATOM 109 CE2 PHE H 23 32.297 96.310 15.418 1.00 54.32 ATOM 110 CZ PHE H 23 31.868 95.640 16.564 1.00 54.26 ATOM 111 N LEU H 24 27.172 97.889 15.105 1.00 53.52 ATOM 112 CA LEU H 24 26.308 96.763 15.423 1.00 53.05 ATOM 113 C LEU H 24 25.533 96.224 14.226 1.00 52.73 ATOM 114 O LEU H 24 25.335 95.010 14.108 1.00 52.83 ATOM 115 CB LEU H 24 25.337 97.139 16.535 1.00 53.18 ATOM 116 CG LEU H 24 24.540 95.970 17.118 1.00 53.38 ATOM 117 CD1 LEU H 24 25.481 94.992 17.794 1.00 53.35 ATOM 118 CD2 LEU H 24 23.518 96.488 18.119 1.00 53.70 ATOM 119 N ALA H 25 25.131 97.109 13.320 1.00 52.20 ATOM 120 CA ALA H 25 24.402 96.691 12.119 1.00 51.76 ATOM 121 C ALA H 25 25.303 95.871 11.186 1.00 51.35 ATOM 122 O ALA H 25 24.892 94.824 10.677 1.00 51.30 ATOM 123 CB ALA H 25 23.844 97.914 11.380 1.00 51.67 ATOM 124 N GLY H 26 26.543 96.324 11.009 1.00 50.74 ATOM 125 CA GLY H 26 27.503 95.576 10.218 1.00 50.06 ATOM 126 C GLY H 26 27.929 94.267 10.868 1.00 49.54 ATOM 127 O GLY H 26 28.247 93.305 10.170 1.00 49.48 ATOM 128 N LEU H 27 27.955 94.239 12.200 1.00 48.93 ATOM 129 CA LEU H 27 28.223 93.017 12.938 1.00 48.50 ATOM 130 C LEU H 27 27.091 92.001 12.758 1.00 48.21 ATOM 131 O LEU H 27 27.352 90.826 12.518 1.00 48.07 ATOM 132 CB LEU H 27 28.433 93.320 14.428 1.00 48.53 ATOM 133 CG LEU H 27 28.607 92.108 15.366 1.00 48.66 ATOM 134 CD1 LEU H 27 29.976 91.453 15.160 1.00 48.35 ATOM 135 CD2 LEU H 27 28.430 92.556 16.818 1.00 48.53 ATOM 136 N ILE H 28 25.842 92.468 12.814 1.00 47.86 ATOM 137 CA ILE H 28 24.676 91.609 12.586 1.00 47.47 ATOM 138 C ILE H 28 24.702 91.028 11.176 1.00 47.40 ATOM 139 O ILE H 28 24.413 89.849 10.960 1.00 47.33 ATOM 140 CB ILE H 28 23.354 92.399 12.781 1.00 47.40 ATOM 141 CG1 ILE H 28 23.239 92.855 14.243 1.00 47.37 ATOM 142 CG2 ILE H 28 22.151 91.571 12.321 1.00 46.95 ATOM 143 CD1 ILE H 28 22.250 92.093 15.081 1.00 47.32 ATOM 144 N TYR H 29 25.056 91.871 10.215 1.00 47.39 ATOM 145 CA TYR H 29 25.139 91.466 8.823 1.00 47.27 ATOM 146 C TYR H 29 26.163 90.326 8.668 1.00 46.95 ATOM 147 O TYR H 29 25.825 89.220 8.230 1.00 46.84 ATOM 148 CB TYR H 29 25.537 92.684 7.989 1.00 47.84 ATOM 149 CG TYR H 29 25.629 92.422 6.513 1.00 48.64 ATOM 150 CD1 TYR H 29 24.485 92.385 5.718 1.00 48.97 ATOM 151 CD2 TYR H 29 26.860 92.144 5.920 1.00 49.04 ATOM 152 CE1 TYR H 29 24.562 92.076 4.365 1.00 49.48 ATOM 153 CE2 TYR H 29 26.953 91.816 4.580 1.00 49.49 ATOM 154 CZ TYR H 29 25.804 91.781 3.806 1.00 49.81 ATOM 155 OH TYR H 29 25.908 91.393 2.487 1.00 50.43 ATOM 156 N TYR H 30 27.382 90.583 9.145 1.00 46.39 ATOM 157 CA TYR H 30 28.479 89.616 9.146 1.00 45.67 ATOM 158 C TYR H 30 28.081 88.304 9.834 1.00 45.17 ATOM 159 O TYR H 30 28.254 87.226 9.266 1.00 45.05 ATOM 160 CB TYR H 30 29.695 90.251 9.839 1.00 45.85 ATOM 161 CG TYR H 30 30.699 89.272 10.401 1.00 46.01 ATOM 162 CD1 TYR H 30 31.639 88.659 9.570 1.00 46.16 ATOM 163 CD2 TYR H 30 30.670 88.913 11.747 1.00 45.87 ATOM 164 CE1 TYR H 30 32.519 87.699 10.062 1.00 46.28 ATOM 165 CE2 TYR H 30 31.538 87.958 12.251 1.00 46.25 ATOM 166 CZ TYR H 30 32.461 87.346 11.399 1.00 46.43 ATOM 167 OH TYR H 30 33.278 86.335 11.869 1.00 46.76 ATOM 168 N LEU H 31 27.506 88.414 11.031 1.00 44.40 ATOM 169 CA LEU H 31 27.023 87.263 11.779 1.00 43.85 ATOM 170 C LEU H 31 25.991 86.454 11.011 1.00 43.78 ATOM 171 O LEU H 31 26.067 85.227 11.000 1.00 43.93 ATOM 172 CB LEU H 31 26.423 87.690 13.122 1.00 43.58 ATOM 173 CG LEU H 31 27.360 88.043 14.280 1.00 43.33 ATOM 174 CD1 LEU H 31 26.535 88.566 15.438 1.00 43.14 ATOM 175 CD2 LEU H 31 28.176 86.832 14.706 1.00 43.03 ATOM 176 N GLN H 32 25.030 87.121 10.369 1.00 43.54 ATOM 177 CA GLN H 32 23.982 86.396 9.667 1.00 43.25 ATOM 178 C GLN H 32 24.518 85.677 8.442 1.00 43.38 ATOM 179 O GLN H 32 24.153 84.524 8.202 1.00 43.37 ATOM 180 CB GLN H 32 22.822 87.314 9.258 1.00 43.10 ATOM 181 CG GLN H 32 21.665 86.588 8.541 1.00 42.61 ATOM 182 CD GLN H 32 21.052 85.452 9.375 1.00 42.83 ATOM 183 OE1 GLN H 32 21.073 85.482 10.612 1.00 42.81 ATOM 184 NE2 GLN H 32 20.486 84.459 8.696 1.00 42.63 ATOM 185 N THR H 33 25.347 86.353 7.647 1.00 43.43 ATOM 186 CA THR H 33 25.944 85.704 6.479 1.00 43.66 ATOM 187 C THR H 33 26.860 84.542 6.867 1.00 43.79 ATOM 188 O THR H 33 26.802 83.482 6.232 1.00 44.08 ATOM 189 CB THR H 33 26.739 86.684 5.594 1.00 43.67 ATOM 190 OG1 THR H 33 27.698 87.386 6.395 1.00 43.97 ATOM 191 CG2 THR H 33 25.795 87.672 4.933 1.00 43.73 ATOM 192 N GLU H 34 27.602 84.687 7.969 1.00 43.45 ATOM 193 CA GLU H 34 28.357 83.563 8.512 1.00 43.19 ATOM 194 C GLU H 34 27.482 82.335 8.749 1.00 43.30 ATOM 195 O GLU H 34 27.909 81.218 8.511 1.00 43.23 ATOM 196 CB GLU H 34 29.030 83.955 9.822 1.00 42.97 ATOM 197 CG GLU H 34 30.300 84.764 9.644 1.00 42.74 ATOM 198 CD GLU H 34 31.245 84.141 8.645 1.00 42.45 ATOM 199 OE1 GLU H 34 31.624 84.821 7.670 1.00 42.02 ATOM 200 OE2 GLU H 34 31.572 82.948 8.812 1.00 42.63 ATOM 201 N ASN H 35 26.241 82.552 9.176 1.00 43.53 ATOM 202 CA ASN H 35 25.339 81.462 9.544 1.00 43.73 ATOM 203 C ASN H 35 24.560 80.922 8.358 1.00 44.08 ATOM 204 O ASN H 35 23.612 80.142 8.525 1.00 43.99 ATOM 205 CB ASN H 35 24.368 81.929 10.631 1.00 43.39 ATOM 206 CG ASN H 35 24.974 81.871 12.002 1.00 43.21 ATOM 207 OD1 ASN H 35 24.939 80.830 12.661 1.00 42.96 ATOM 208 ND2 ASN H 35 25.628 82.952 12.403 1.00 42.82 ATOM 209 N1 LDA H 702 16.161 83.379 5.806 1.00 75.00 ATOM 210 O1 LDA H 702 16.716 82.436 5.259 1.00 75.11 ATOM 211 CM1 LDA H 702 15.813 84.407 4.825 1.00 75.04 ATOM 212 CM2 LDA H 702 14.938 82.926 6.464 1.00 75.04 ATOM 213 C1 LDA H 702 17.042 83.961 6.795 1.00 74.82 ATOM 214 C2 LDA H 702 17.745 85.256 7.178 1.00 74.58 ATOM 215 C3 LDA H 702 16.853 86.152 8.016 1.00 74.20 ATOM 216 C4 LDA H 702 17.612 86.759 9.173 1.00 73.84 ATOM 217 C5 LDA H 702 16.678 87.545 10.062 1.00 73.76 ATOM 218 C6 LDA H 702 17.329 87.868 11.385 1.00 73.70 ATOM 219 C7 LDA H 702 18.357 88.975 11.246 1.00 73.69 ATOM 220 C8 LDA H 702 19.101 89.221 12.554 1.00 73.67 ATOM 221 C9 LDA H 702 18.153 89.546 13.695 1.00 73.62 ATOM 222 C10 LDA H 702 18.909 89.764 14.990 1.00 73.62 ATOM 223 C11 LDA H 702 17.964 89.735 16.176 1.00 73.82 ATOM 224 C12 LDA H 702 18.699 90.010 17.469 1.00 73.94 ATOM 225 N1 LDA H 706 35.625 90.218 11.756 1.00100.31 ATOM 226 O1 LDA H 706 36.257 90.155 10.696 1.00100.31 ATOM 227 CM1 LDA H 706 35.470 88.894 12.319 1.00100.28 ATOM 228 CM2 LDA H 706 36.337 91.029 12.740 1.00100.31 ATOM 229 C1 LDA H 706 34.306 90.818 11.531 1.00100.31 ATOM 230 C2 LDA H 706 33.946 92.026 10.670 1.00100.31 ATOM 231 C3 LDA H 706 32.557 92.566 10.980 1.00100.31 ATOM 232 C4 LDA H 706 32.525 93.327 12.302 1.00100.29 ATOM 233 C5 LDA H 706 31.544 94.494 12.247 1.00100.25 ATOM 234 C6 LDA H 706 32.085 95.647 11.406 1.00100.20 ATOM 235 C7 LDA H 706 31.087 96.794 11.311 1.00100.15 ATOM 236 C8 LDA H 706 31.657 97.954 10.508 1.00100.15 ATOM 237 C9 LDA H 706 30.552 98.769 9.847 1.00100.11 ATOM 238 C10 LDA H 706 31.079 99.540 8.636 1.00100.07 ATOM 239 C11 LDA H 706 29.968 100.296 7.902 1.00100.05 ATOM 240 C12 LDA H 706 28.994 99.356 7.202 1.00 99.96 TER ATOM 1 N1 LDA M 704 36.307 87.135 15.639 1.00 94.38 ATOM 2 O1 LDA M 704 37.022 87.803 14.895 1.00 94.38 ATOM 3 CM1 LDA M 704 34.935 87.011 15.120 1.00 94.29 ATOM 4 CM2 LDA M 704 36.837 85.828 15.744 1.00 94.32 ATOM 5 C1 LDA M 704 36.259 87.726 16.975 1.00 94.36 ATOM 6 C2 LDA M 704 37.197 87.972 18.152 1.00 94.40 ATOM 7 C3 LDA M 704 36.468 88.571 19.353 1.00 94.42 ATOM 8 C4 LDA M 704 36.271 90.079 19.207 1.00 94.58 ATOM 9 C5 LDA M 704 37.593 90.851 19.282 1.00 94.65 ATOM 10 C6 LDA M 704 37.405 92.344 19.002 1.00 94.65 ATOM 11 C7 LDA M 704 38.286 93.202 19.906 1.00 94.58 ATOM 12 C8 LDA M 704 37.842 93.102 21.358 1.00 94.56 ATOM 13 C9 LDA M 704 38.721 93.933 22.274 1.00 94.60 ATOM 14 C10 LDA M 704 38.326 95.401 22.251 1.00 94.61 ATOM 15 C11 LDA M 704 39.030 96.180 23.356 1.00 94.66 ATOM 16 C12 LDA M 704 38.597 97.641 23.375 1.00 94.70 TER