HEADER PHOTOSYNTHESIS 22-JUN-00 1F6N TITLE CRYSTAL STRUCTURE ANALYSIS OF THE MUTANT REACTION CENTER PRO L209-> TITLE 2 TYR 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; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.80 ANGSTORMS DBREF 1F6N H 1 260 UNP P11846 RCEH_RHOSH 1 260 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 28.139 116.107 20.568 1.00 82.13 ATOM 2 CA ASP H 11 29.244 115.859 21.549 1.00 82.20 ATOM 3 C ASP H 11 29.833 114.439 21.502 1.00 81.93 ATOM 4 O ASP H 11 29.262 113.533 20.889 1.00 81.74 ATOM 5 CB ASP H 11 28.765 116.171 22.977 1.00 82.61 ATOM 6 CG ASP H 11 28.002 115.010 23.623 1.00 82.93 ATOM 7 OD1 ASP H 11 28.276 114.711 24.810 1.00 83.00 ATOM 8 OD2 ASP H 11 27.111 114.428 22.961 1.00 82.86 ATOM 9 N LEU H 12 30.882 114.233 22.296 1.00 81.62 ATOM 10 CA LEU H 12 31.634 112.981 22.324 1.00 81.35 ATOM 11 C LEU H 12 30.774 111.741 22.543 1.00 81.09 ATOM 12 O LEU H 12 30.918 110.756 21.819 1.00 81.35 ATOM 13 CB LEU H 12 32.711 113.045 23.406 1.00 81.53 ATOM 14 CG LEU H 12 34.091 112.512 23.027 1.00 81.78 ATOM 15 CD1 LEU H 12 34.036 111.001 22.835 1.00 81.96 ATOM 16 CD2 LEU H 12 34.571 113.196 21.755 1.00 82.00 ATOM 17 N ALA H 13 29.902 111.783 23.549 1.00 80.49 ATOM 18 CA ALA H 13 29.029 110.655 23.867 1.00 79.90 ATOM 19 C ALA H 13 28.019 110.357 22.760 1.00 79.64 ATOM 20 O ALA H 13 27.736 109.193 22.466 1.00 79.63 ATOM 21 CB ALA H 13 28.309 110.907 25.175 1.00 79.80 ATOM 22 N SER H 14 27.506 111.405 22.123 1.00 79.31 ATOM 23 CA SER H 14 26.547 111.238 21.034 1.00 78.93 ATOM 24 C SER H 14 27.179 110.606 19.798 1.00 78.59 ATOM 25 O SER H 14 26.493 109.944 19.014 1.00 78.56 ATOM 26 CB SER H 14 25.917 112.583 20.656 1.00 78.93 ATOM 27 OG SER H 14 24.943 112.969 21.607 1.00 78.90 ATOM 28 N LEU H 15 28.473 110.849 19.599 1.00 78.09 ATOM 29 CA LEU H 15 29.179 110.284 18.456 1.00 77.50 ATOM 30 C LEU H 15 29.495 108.823 18.735 1.00 76.80 ATOM 31 O LEU H 15 29.341 107.968 17.858 1.00 76.54 ATOM 32 CB LEU H 15 30.472 111.061 18.180 1.00 78.07 ATOM 33 CG LEU H 15 31.372 110.504 17.064 1.00 78.61 ATOM 34 CD1 LEU H 15 30.685 110.646 15.698 1.00 78.66 ATOM 35 CD2 LEU H 15 32.718 111.225 17.079 1.00 78.80 ATOM 36 N ALA H 16 29.857 108.544 19.986 1.00 75.92 ATOM 37 CA ALA H 16 30.147 107.191 20.437 1.00 74.85 ATOM 38 C ALA H 16 28.948 106.272 20.223 1.00 74.28 ATOM 39 O ALA H 16 29.075 105.238 19.563 1.00 74.22 ATOM 40 CB ALA H 16 30.548 107.204 21.899 1.00 74.52 ATOM 41 N ILE H 17 27.771 106.704 20.676 1.00 73.43 ATOM 42 CA ILE H 17 26.582 105.852 20.647 1.00 72.91 ATOM 43 C ILE H 17 26.037 105.650 19.233 1.00 72.32 ATOM 44 O ILE H 17 25.664 104.539 18.850 1.00 71.99 ATOM 45 CB ILE H 17 25.460 106.401 21.599 1.00 73.19 ATOM 46 CG1 ILE H 17 24.210 105.516 21.540 1.00 73.10 ATOM 47 CG2 ILE H 17 25.101 107.831 21.243 1.00 73.53 ATOM 48 CD1 ILE H 17 24.374 104.150 22.206 1.00 73.01 ATOM 49 N TYR H 18 26.093 106.709 18.436 1.00 71.99 ATOM 50 CA TYR H 18 25.670 106.670 17.041 1.00 71.50 ATOM 51 C TYR H 18 26.609 105.749 16.244 1.00 70.61 ATOM 52 O TYR H 18 26.146 104.853 15.540 1.00 70.25 ATOM 53 CB TYR H 18 25.651 108.114 16.492 1.00 72.36 ATOM 54 CG TYR H 18 25.668 108.274 14.983 1.00 73.38 ATOM 55 CD1 TYR H 18 24.493 108.157 14.232 1.00 73.69 ATOM 56 CD2 TYR H 18 26.867 108.566 14.302 1.00 73.72 ATOM 57 CE1 TYR H 18 24.511 108.322 12.834 1.00 74.27 ATOM 58 CE2 TYR H 18 26.898 108.725 12.909 1.00 73.89 ATOM 59 CZ TYR H 18 25.718 108.600 12.180 1.00 74.29 ATOM 60 OH TYR H 18 25.746 108.711 10.803 1.00 74.55 ATOM 61 N SER H 19 27.915 105.879 16.482 1.00 69.86 ATOM 62 CA SER H 19 28.918 104.989 15.880 1.00 69.15 ATOM 63 C SER H 19 28.680 103.534 16.259 1.00 68.65 ATOM 64 O SER H 19 28.847 102.633 15.437 1.00 68.47 ATOM 65 CB SER H 19 30.330 105.383 16.320 1.00 68.91 ATOM 66 OG SER H 19 30.619 106.712 15.950 1.00 68.70 ATOM 67 N PHE H 20 28.326 103.318 17.522 1.00 68.08 ATOM 68 CA PHE H 20 27.995 101.994 18.012 1.00 67.60 ATOM 69 C PHE H 20 26.857 101.342 17.229 1.00 67.12 ATOM 70 O PHE H 20 26.976 100.197 16.811 1.00 67.24 ATOM 71 CB PHE H 20 27.638 102.038 19.501 1.00 67.87 ATOM 72 CG PHE H 20 27.559 100.679 20.136 1.00 68.05 ATOM 73 CD1 PHE H 20 26.359 99.968 20.134 1.00 68.09 ATOM 74 CD2 PHE H 20 28.721 100.031 20.551 1.00 68.09 ATOM 75 CE1 PHE H 20 26.319 98.630 20.509 1.00 68.26 ATOM 76 CE2 PHE H 20 28.694 98.696 20.928 1.00 68.41 ATOM 77 CZ PHE H 20 27.488 97.991 20.901 1.00 68.56 ATOM 78 N TRP H 21 25.758 102.060 17.030 1.00 66.53 ATOM 79 CA TRP H 21 24.601 101.481 16.351 1.00 65.87 ATOM 80 C TRP H 21 24.874 101.092 14.911 1.00 65.46 ATOM 81 O TRP H 21 24.252 100.167 14.387 1.00 65.39 ATOM 82 CB TRP H 21 23.414 102.434 16.410 1.00 65.82 ATOM 83 CG TRP H 21 22.725 102.349 17.709 1.00 66.18 ATOM 84 CD1 TRP H 21 22.856 103.204 18.758 1.00 66.29 ATOM 85 CD2 TRP H 21 21.896 101.276 18.165 1.00 66.34 ATOM 86 NE1 TRP H 21 22.168 102.726 19.849 1.00 66.45 ATOM 87 CE2 TRP H 21 21.566 101.545 19.508 1.00 66.37 ATOM 88 CE3 TRP H 21 21.404 100.108 17.570 1.00 66.31 ATOM 89 CZ2 TRP H 21 20.761 100.692 20.266 1.00 66.34 ATOM 90 CZ3 TRP H 21 20.610 99.262 18.322 1.00 66.39 ATOM 91 CH2 TRP H 21 20.293 99.560 19.657 1.00 66.32 ATOM 92 N ILE H 22 25.822 101.783 14.283 1.00 64.88 ATOM 93 CA ILE H 22 26.222 101.463 12.919 1.00 64.27 ATOM 94 C ILE H 22 27.126 100.232 12.913 1.00 63.42 ATOM 95 O ILE H 22 26.967 99.351 12.071 1.00 63.28 ATOM 96 CB ILE H 22 26.955 102.653 12.244 1.00 64.65 ATOM 97 CG1 ILE H 22 26.028 103.876 12.184 1.00 64.61 ATOM 98 CG2 ILE H 22 27.411 102.258 10.833 1.00 64.59 ATOM 99 CD1 ILE H 22 26.593 105.034 11.385 1.00 64.67 ATOM 100 N PHE H 23 28.033 100.166 13.886 1.00 62.48 ATOM 101 CA PHE H 23 28.857 98.985 14.123 1.00 61.50 ATOM 102 C PHE H 23 27.987 97.754 14.321 1.00 60.95 ATOM 103 O PHE H 23 28.070 96.814 13.545 1.00 60.94 ATOM 104 CB PHE H 23 29.749 99.197 15.348 1.00 61.38 ATOM 105 CG PHE H 23 30.451 97.951 15.813 1.00 61.77 ATOM 106 CD1 PHE H 23 30.056 97.309 16.993 1.00 61.83 ATOM 107 CD2 PHE H 23 31.483 97.391 15.061 1.00 61.57 ATOM 108 CE1 PHE H 23 30.676 96.129 17.412 1.00 61.38 ATOM 109 CE2 PHE H 23 32.103 96.208 15.472 1.00 61.34 ATOM 110 CZ PHE H 23 31.698 95.578 16.649 1.00 61.29 ATOM 111 N LEU H 24 27.078 97.822 15.289 1.00 60.64 ATOM 112 CA LEU H 24 26.142 96.737 15.586 1.00 60.38 ATOM 113 C LEU H 24 25.389 96.187 14.371 1.00 60.11 ATOM 114 O LEU H 24 25.206 94.973 14.246 1.00 60.22 ATOM 115 CB LEU H 24 25.132 97.186 16.639 1.00 60.32 ATOM 116 CG LEU H 24 24.357 96.058 17.325 1.00 60.64 ATOM 117 CD1 LEU H 24 25.332 95.133 18.030 1.00 60.82 ATOM 118 CD2 LEU H 24 23.355 96.624 18.325 1.00 60.86 ATOM 119 N ALA H 25 24.966 97.078 13.479 1.00 59.81 ATOM 120 CA ALA H 25 24.281 96.690 12.245 1.00 59.31 ATOM 121 C ALA H 25 25.212 95.947 11.280 1.00 58.96 ATOM 122 O ALA H 25 24.792 95.010 10.609 1.00 58.98 ATOM 123 CB ALA H 25 23.695 97.918 11.569 1.00 59.28 ATOM 124 N GLY H 26 26.480 96.351 11.235 1.00 58.61 ATOM 125 CA GLY H 26 27.475 95.605 10.481 1.00 57.85 ATOM 126 C GLY H 26 27.779 94.239 11.088 1.00 57.37 ATOM 127 O GLY H 26 27.977 93.258 10.364 1.00 57.24 ATOM 128 N LEU H 27 27.823 94.183 12.418 1.00 56.64 ATOM 129 CA LEU H 27 28.010 92.931 13.126 1.00 56.15 ATOM 130 C LEU H 27 26.855 91.954 12.873 1.00 55.97 ATOM 131 O LEU H 27 27.099 90.828 12.450 1.00 55.75 ATOM 132 CB LEU H 27 28.174 93.190 14.624 1.00 56.25 ATOM 133 CG LEU H 27 28.488 91.984 15.522 1.00 56.34 ATOM 134 CD1 LEU H 27 29.922 91.494 15.294 1.00 56.07 ATOM 135 CD2 LEU H 27 28.284 92.389 16.971 1.00 56.13 ATOM 136 N ILE H 28 25.607 92.403 13.051 1.00 55.52 ATOM 137 CA ILE H 28 24.432 91.556 12.786 1.00 54.98 ATOM 138 C ILE H 28 24.455 91.000 11.359 1.00 55.07 ATOM 139 O ILE H 28 24.179 89.822 11.124 1.00 54.71 ATOM 140 CB ILE H 28 23.104 92.333 12.991 1.00 54.43 ATOM 141 CG1 ILE H 28 22.980 92.779 14.449 1.00 54.21 ATOM 142 CG2 ILE H 28 21.904 91.476 12.574 1.00 53.46 ATOM 143 CD1 ILE H 28 22.369 91.756 15.365 1.00 54.40 ATOM 144 N TYR H 29 24.869 91.844 10.425 1.00 55.26 ATOM 145 CA TYR H 29 24.953 91.479 9.019 1.00 55.56 ATOM 146 C TYR H 29 25.950 90.328 8.802 1.00 55.42 ATOM 147 O TYR H 29 25.602 89.249 8.292 1.00 55.12 ATOM 148 CB TYR H 29 25.392 92.709 8.232 1.00 56.14 ATOM 149 CG TYR H 29 25.367 92.512 6.751 1.00 57.42 ATOM 150 CD1 TYR H 29 24.165 92.567 6.047 1.00 57.86 ATOM 151 CD2 TYR H 29 26.539 92.228 6.051 1.00 57.91 ATOM 152 CE1 TYR H 29 24.128 92.349 4.680 1.00 58.52 ATOM 153 CE2 TYR H 29 26.516 91.999 4.686 1.00 58.61 ATOM 154 CZ TYR H 29 25.308 92.071 4.005 1.00 58.94 ATOM 155 OH TYR H 29 25.290 91.940 2.640 1.00 59.67 ATOM 156 N TYR H 30 27.201 90.609 9.164 1.00 55.03 ATOM 157 CA TYR H 30 28.301 89.656 9.149 1.00 54.25 ATOM 158 C TYR H 30 27.940 88.343 9.844 1.00 53.45 ATOM 159 O TYR H 30 28.090 87.274 9.258 1.00 53.35 ATOM 160 CB TYR H 30 29.525 90.317 9.800 1.00 55.07 ATOM 161 CG TYR H 30 30.567 89.366 10.320 1.00 55.90 ATOM 162 CD1 TYR H 30 31.456 88.737 9.450 1.00 56.42 ATOM 163 CD2 TYR H 30 30.617 89.039 11.669 1.00 56.05 ATOM 164 CE1 TYR H 30 32.360 87.794 9.905 1.00 56.98 ATOM 165 CE2 TYR H 30 31.512 88.099 12.139 1.00 57.19 ATOM 166 CZ TYR H 30 32.383 87.471 11.250 1.00 57.47 ATOM 167 OH TYR H 30 33.257 86.501 11.701 1.00 58.08 ATOM 168 N LEU H 31 27.391 88.436 11.054 1.00 52.51 ATOM 169 CA LEU H 31 26.950 87.263 11.802 1.00 51.67 ATOM 170 C LEU H 31 25.912 86.448 11.039 1.00 51.55 ATOM 171 O LEU H 31 26.012 85.222 10.974 1.00 51.73 ATOM 172 CB LEU H 31 26.385 87.659 13.174 1.00 51.11 ATOM 173 CG LEU H 31 27.375 87.937 14.312 1.00 50.83 ATOM 174 CD1 LEU H 31 26.642 88.395 15.552 1.00 50.44 ATOM 175 CD2 LEU H 31 28.176 86.687 14.611 1.00 51.09 ATOM 176 N GLN H 32 24.947 87.114 10.413 1.00 51.27 ATOM 177 CA GLN H 32 23.904 86.377 9.718 1.00 51.00 ATOM 178 C GLN H 32 24.429 85.703 8.458 1.00 51.23 ATOM 179 O GLN H 32 24.032 84.577 8.156 1.00 51.30 ATOM 180 CB GLN H 32 22.708 87.270 9.383 1.00 50.58 ATOM 181 CG GLN H 32 21.592 86.557 8.610 1.00 50.20 ATOM 182 CD GLN H 32 20.965 85.396 9.381 1.00 50.64 ATOM 183 OE1 GLN H 32 20.999 85.349 10.616 1.00 50.82 ATOM 184 NE2 GLN H 32 20.347 84.479 8.652 1.00 50.62 ATOM 185 N THR H 33 25.349 86.350 7.745 1.00 51.23 ATOM 186 CA THR H 33 25.932 85.710 6.565 1.00 51.52 ATOM 187 C THR H 33 26.846 84.528 6.926 1.00 51.43 ATOM 188 O THR H 33 26.829 83.504 6.235 1.00 51.81 ATOM 189 CB THR H 33 26.711 86.711 5.669 1.00 51.85 ATOM 190 OG1 THR H 33 27.778 87.317 6.418 1.00 52.48 ATOM 191 CG2 THR H 33 25.770 87.787 5.140 1.00 52.21 ATOM 192 N GLU H 34 27.547 84.619 8.060 1.00 50.68 ATOM 193 CA GLU H 34 28.286 83.476 8.589 1.00 49.97 ATOM 194 C GLU H 34 27.407 82.250 8.816 1.00 50.01 ATOM 195 O GLU H 34 27.835 81.131 8.590 1.00 50.29 ATOM 196 CB GLU H 34 28.968 83.847 9.898 1.00 49.73 ATOM 197 CG GLU H 34 30.258 84.640 9.722 1.00 49.55 ATOM 198 CD GLU H 34 31.167 84.043 8.668 1.00 49.02 ATOM 199 OE1 GLU H 34 31.386 84.696 7.628 1.00 48.48 ATOM 200 OE2 GLU H 34 31.620 82.895 8.861 1.00 49.14 ATOM 201 N ASN H 35 26.173 82.461 9.261 1.00 50.21 ATOM 202 CA ASN H 35 25.254 81.363 9.575 1.00 49.84 ATOM 203 C ASN H 35 24.455 80.899 8.360 1.00 50.24 ATOM 204 O ASN H 35 23.464 80.168 8.489 1.00 49.68 ATOM 205 CB ASN H 35 24.316 81.785 10.704 1.00 49.16 ATOM 206 CG ASN H 35 24.999 81.770 12.050 1.00 48.63 ATOM 207 OD1 ASN H 35 25.033 80.748 12.717 1.00 48.18 ATOM 208 ND2 ASN H 35 25.634 82.874 12.407 1.00 48.36 TER