HEADER PHOTOSYNTHESIS 23-AUG-00 1FNQ TITLE CRYSTAL STRUCTURE ANALYSIS OF THE MUTANT REACTION CENTER PRO L209-> TITLE 2 GLU 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 1FNQ H 1 260 UNP P11846 RCEH_RHOSH 1 260 DBREF 1FNQ 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 28.356 116.085 20.669 1.00 73.99 ATOM 2 CA ASP H 11 29.395 115.753 21.684 1.00 73.99 ATOM 3 C ASP H 11 29.918 114.318 21.554 1.00 73.75 ATOM 4 O ASP H 11 29.274 113.460 20.942 1.00 73.63 ATOM 5 CB ASP H 11 28.840 115.984 23.097 1.00 74.29 ATOM 6 CG ASP H 11 27.990 114.822 23.603 1.00 74.55 ATOM 7 OD1 ASP H 11 28.142 114.468 24.794 1.00 74.72 ATOM 8 OD2 ASP H 11 27.151 114.296 22.834 1.00 74.47 ATOM 9 N LEU H 12 31.035 114.054 22.229 1.00 73.46 ATOM 10 CA LEU H 12 31.700 112.757 22.203 1.00 73.18 ATOM 11 C LEU H 12 30.773 111.566 22.449 1.00 72.91 ATOM 12 O LEU H 12 30.831 110.572 21.723 1.00 73.04 ATOM 13 CB LEU H 12 32.824 112.737 23.232 1.00 73.33 ATOM 14 CG LEU H 12 34.241 112.744 22.667 1.00 73.70 ATOM 15 CD1 LEU H 12 35.242 112.904 23.812 1.00 73.84 ATOM 16 CD2 LEU H 12 34.495 111.454 21.889 1.00 73.71 ATOM 17 N ALA H 13 29.928 111.663 23.472 1.00 72.30 ATOM 18 CA ALA H 13 29.049 110.561 23.840 1.00 71.76 ATOM 19 C ALA H 13 28.022 110.239 22.751 1.00 71.44 ATOM 20 O ALA H 13 27.692 109.073 22.528 1.00 71.38 ATOM 21 CB ALA H 13 28.349 110.868 25.151 1.00 71.73 ATOM 22 N SER H 14 27.568 111.268 22.038 1.00 70.98 ATOM 23 CA SER H 14 26.601 111.096 20.954 1.00 70.42 ATOM 24 C SER H 14 27.240 110.513 19.699 1.00 69.94 ATOM 25 O SER H 14 26.562 109.881 18.887 1.00 69.82 ATOM 26 CB SER H 14 25.938 112.433 20.607 1.00 70.49 ATOM 27 OG SER H 14 24.828 112.674 21.448 1.00 70.56 ATOM 28 N LEU H 15 28.519 110.815 19.492 1.00 69.36 ATOM 29 CA LEU H 15 29.262 110.227 18.388 1.00 68.87 ATOM 30 C LEU H 15 29.435 108.738 18.653 1.00 68.31 ATOM 31 O LEU H 15 29.200 107.909 17.772 1.00 68.16 ATOM 32 CB LEU H 15 30.639 110.888 18.249 1.00 69.25 ATOM 33 CG LEU H 15 31.492 110.401 17.066 1.00 69.50 ATOM 34 CD1 LEU H 15 30.846 110.842 15.750 1.00 69.41 ATOM 35 CD2 LEU H 15 32.917 110.939 17.181 1.00 69.53 ATOM 36 N ALA H 16 29.743 108.415 19.908 1.00 67.61 ATOM 37 CA ALA H 16 30.062 107.056 20.311 1.00 66.84 ATOM 38 C ALA H 16 28.860 106.116 20.154 1.00 66.44 ATOM 39 O ALA H 16 28.989 105.038 19.562 1.00 66.25 ATOM 40 CB ALA H 16 30.574 107.049 21.748 1.00 66.58 ATOM 41 N ILE H 17 27.682 106.561 20.588 1.00 65.78 ATOM 42 CA ILE H 17 26.501 105.704 20.544 1.00 65.41 ATOM 43 C ILE H 17 25.993 105.523 19.117 1.00 65.10 ATOM 44 O ILE H 17 25.619 104.420 18.713 1.00 65.06 ATOM 45 CB ILE H 17 25.355 106.238 21.468 1.00 65.33 ATOM 46 CG1 ILE H 17 24.224 105.212 21.555 1.00 65.17 ATOM 47 CG2 ILE H 17 24.806 107.550 20.953 1.00 65.39 ATOM 48 CD1 ILE H 17 24.625 103.915 22.215 1.00 65.02 ATOM 49 N TYR H 18 26.110 106.584 18.329 1.00 64.84 ATOM 50 CA TYR H 18 25.718 106.567 16.927 1.00 64.43 ATOM 51 C TYR H 18 26.657 105.633 16.154 1.00 63.68 ATOM 52 O TYR H 18 26.195 104.782 15.398 1.00 63.39 ATOM 53 CB TYR H 18 25.761 108.003 16.377 1.00 65.27 ATOM 54 CG TYR H 18 25.569 108.138 14.877 1.00 66.29 ATOM 55 CD1 TYR H 18 24.294 108.045 14.305 1.00 66.79 ATOM 56 CD2 TYR H 18 26.666 108.376 14.026 1.00 66.57 ATOM 57 CE1 TYR H 18 24.111 108.182 12.915 1.00 67.30 ATOM 58 CE2 TYR H 18 26.500 108.511 12.641 1.00 67.02 ATOM 59 CZ TYR H 18 25.219 108.411 12.091 1.00 67.43 ATOM 60 OH TYR H 18 25.039 108.515 10.722 1.00 67.82 ATOM 61 N SER H 19 27.959 105.730 16.435 1.00 62.93 ATOM 62 CA SER H 19 28.968 104.838 15.849 1.00 62.25 ATOM 63 C SER H 19 28.693 103.378 16.197 1.00 61.77 ATOM 64 O SER H 19 28.780 102.496 15.342 1.00 61.59 ATOM 65 CB SER H 19 30.370 105.200 16.353 1.00 62.25 ATOM 66 OG SER H 19 30.769 106.477 15.904 1.00 62.20 ATOM 67 N PHE H 20 28.395 103.137 17.470 1.00 61.15 ATOM 68 CA PHE H 20 28.078 101.806 17.954 1.00 60.59 ATOM 69 C PHE H 20 26.924 101.154 17.188 1.00 60.14 ATOM 70 O PHE H 20 27.024 99.996 16.800 1.00 60.23 ATOM 71 CB PHE H 20 27.758 101.845 19.456 1.00 60.56 ATOM 72 CG PHE H 20 27.637 100.484 20.080 1.00 60.54 ATOM 73 CD1 PHE H 20 26.402 99.835 20.124 1.00 60.45 ATOM 74 CD2 PHE H 20 28.780 99.779 20.453 1.00 60.61 ATOM 75 CE1 PHE H 20 26.306 98.505 20.505 1.00 60.41 ATOM 76 CE2 PHE H 20 28.695 98.446 20.838 1.00 60.68 ATOM 77 CZ PHE H 20 27.453 97.806 20.860 1.00 60.66 ATOM 78 N TRP H 21 25.840 101.887 16.962 1.00 59.62 ATOM 79 CA TRP H 21 24.682 101.319 16.275 1.00 59.13 ATOM 80 C TRP H 21 24.992 100.905 14.845 1.00 58.83 ATOM 81 O TRP H 21 24.409 99.948 14.332 1.00 58.76 ATOM 82 CB TRP H 21 23.503 102.299 16.283 1.00 59.11 ATOM 83 CG TRP H 21 22.741 102.257 17.557 1.00 59.16 ATOM 84 CD1 TRP H 21 22.804 103.159 18.571 1.00 59.20 ATOM 85 CD2 TRP H 21 21.951 101.165 18.041 1.00 59.27 ATOM 86 NE1 TRP H 21 22.129 102.689 19.671 1.00 59.27 ATOM 87 CE2 TRP H 21 21.591 101.468 19.370 1.00 59.21 ATOM 88 CE3 TRP H 21 21.533 99.947 17.485 1.00 59.27 ATOM 89 CZ2 TRP H 21 20.831 100.602 20.156 1.00 59.10 ATOM 90 CZ3 TRP H 21 20.783 99.081 18.268 1.00 59.27 ATOM 91 CH2 TRP H 21 20.439 99.416 19.591 1.00 59.28 ATOM 92 N ILE H 22 25.910 101.626 14.205 1.00 58.35 ATOM 93 CA ILE H 22 26.335 101.288 12.848 1.00 57.86 ATOM 94 C ILE H 22 27.252 100.060 12.854 1.00 57.21 ATOM 95 O ILE H 22 27.123 99.184 11.999 1.00 57.12 ATOM 96 CB ILE H 22 27.053 102.485 12.170 1.00 58.09 ATOM 97 CG1 ILE H 22 26.053 103.621 11.929 1.00 58.13 ATOM 98 CG2 ILE H 22 27.695 102.048 10.844 1.00 58.03 ATOM 99 CD1 ILE H 22 26.709 104.930 11.488 1.00 58.25 ATOM 100 N PHE H 23 28.143 99.992 13.842 1.00 56.51 ATOM 101 CA PHE H 23 28.983 98.820 14.070 1.00 55.87 ATOM 102 C PHE H 23 28.131 97.579 14.310 1.00 55.44 ATOM 103 O PHE H 23 28.286 96.582 13.617 1.00 55.35 ATOM 104 CB PHE H 23 29.918 99.064 15.265 1.00 55.94 ATOM 105 CG PHE H 23 30.563 97.816 15.802 1.00 56.09 ATOM 106 CD1 PHE H 23 30.078 97.209 16.964 1.00 56.16 ATOM 107 CD2 PHE H 23 31.603 97.199 15.109 1.00 56.04 ATOM 108 CE1 PHE H 23 30.613 95.998 17.421 1.00 56.05 ATOM 109 CE2 PHE H 23 32.140 95.988 15.558 1.00 56.00 ATOM 110 CZ PHE H 23 31.642 95.386 16.714 1.00 55.94 ATOM 111 N LEU H 24 27.173 97.681 15.226 1.00 55.05 ATOM 112 CA LEU H 24 26.282 96.571 15.552 1.00 54.79 ATOM 113 C LEU H 24 25.513 96.013 14.350 1.00 54.43 ATOM 114 O LEU H 24 25.233 94.811 14.285 1.00 54.44 ATOM 115 CB LEU H 24 25.289 96.993 16.630 1.00 55.03 ATOM 116 CG LEU H 24 24.471 95.852 17.235 1.00 55.33 ATOM 117 CD1 LEU H 24 25.394 94.901 17.988 1.00 55.50 ATOM 118 CD2 LEU H 24 23.415 96.408 18.174 1.00 55.79 ATOM 119 N ALA H 25 25.184 96.887 13.404 1.00 53.91 ATOM 120 CA ALA H 25 24.451 96.500 12.198 1.00 53.42 ATOM 121 C ALA H 25 25.340 95.721 11.231 1.00 53.04 ATOM 122 O ALA H 25 24.881 94.781 10.578 1.00 53.10 ATOM 123 CB ALA H 25 23.880 97.741 11.502 1.00 53.38 ATOM 124 N GLY H 26 26.600 96.137 11.116 1.00 52.42 ATOM 125 CA GLY H 26 27.554 95.398 10.307 1.00 51.70 ATOM 126 C GLY H 26 27.932 94.075 10.955 1.00 51.24 ATOM 127 O GLY H 26 28.214 93.097 10.265 1.00 51.21 ATOM 128 N LEU H 27 27.912 94.044 12.286 1.00 50.57 ATOM 129 CA LEU H 27 28.149 92.823 13.026 1.00 50.08 ATOM 130 C LEU H 27 27.011 91.823 12.811 1.00 49.79 ATOM 131 O LEU H 27 27.251 90.683 12.429 1.00 49.69 ATOM 132 CB LEU H 27 28.323 93.131 14.516 1.00 50.01 ATOM 133 CG LEU H 27 28.474 91.912 15.442 1.00 50.20 ATOM 134 CD1 LEU H 27 29.729 91.103 15.075 1.00 49.83 ATOM 135 CD2 LEU H 27 28.520 92.382 16.892 1.00 50.02 ATOM 136 N ILE H 28 25.770 92.270 12.965 1.00 49.53 ATOM 137 CA ILE H 28 24.623 91.393 12.723 1.00 49.28 ATOM 138 C ILE H 28 24.617 90.848 11.287 1.00 49.23 ATOM 139 O ILE H 28 24.303 89.676 11.049 1.00 49.09 ATOM 140 CB ILE H 28 23.292 92.127 13.035 1.00 48.93 ATOM 141 CG1 ILE H 28 23.044 92.086 14.536 1.00 48.76 ATOM 142 CG2 ILE H 28 22.118 91.489 12.303 1.00 48.46 ATOM 143 CD1 ILE H 28 21.897 92.942 14.971 1.00 49.31 ATOM 144 N TYR H 29 25.059 91.678 10.350 1.00 49.18 ATOM 145 CA TYR H 29 25.126 91.286 8.952 1.00 49.11 ATOM 146 C TYR H 29 26.182 90.176 8.756 1.00 48.61 ATOM 147 O TYR H 29 25.885 89.090 8.235 1.00 48.37 ATOM 148 CB TYR H 29 25.458 92.522 8.116 1.00 49.87 ATOM 149 CG TYR H 29 25.577 92.263 6.638 1.00 50.73 ATOM 150 CD1 TYR H 29 24.449 92.261 5.815 1.00 51.17 ATOM 151 CD2 TYR H 29 26.813 91.973 6.069 1.00 51.07 ATOM 152 CE1 TYR H 29 24.551 91.967 4.458 1.00 51.66 ATOM 153 CE2 TYR H 29 26.927 91.670 4.725 1.00 51.72 ATOM 154 CZ TYR H 29 25.798 91.664 3.925 1.00 51.84 ATOM 155 OH TYR H 29 25.927 91.302 2.604 1.00 52.35 ATOM 156 N TYR H 30 27.387 90.439 9.262 1.00 47.87 ATOM 157 CA TYR H 30 28.480 89.477 9.271 1.00 47.04 ATOM 158 C TYR H 30 28.039 88.171 9.927 1.00 46.53 ATOM 159 O TYR H 30 28.176 87.100 9.335 1.00 46.49 ATOM 160 CB TYR H 30 29.677 90.081 10.017 1.00 47.16 ATOM 161 CG TYR H 30 30.665 89.075 10.568 1.00 47.16 ATOM 162 CD1 TYR H 30 31.580 88.429 9.726 1.00 47.28 ATOM 163 CD2 TYR H 30 30.637 88.720 11.910 1.00 46.97 ATOM 164 CE1 TYR H 30 32.427 87.445 10.202 1.00 47.33 ATOM 165 CE2 TYR H 30 31.476 87.741 12.404 1.00 47.50 ATOM 166 CZ TYR H 30 32.369 87.095 11.547 1.00 47.71 ATOM 167 OH TYR H 30 33.158 86.065 12.030 1.00 47.65 ATOM 168 N LEU H 31 27.416 88.281 11.099 1.00 45.75 ATOM 169 CA LEU H 31 26.982 87.117 11.852 1.00 44.99 ATOM 170 C LEU H 31 25.941 86.308 11.103 1.00 44.83 ATOM 171 O LEU H 31 26.008 85.085 11.103 1.00 45.02 ATOM 172 CB LEU H 31 26.430 87.516 13.223 1.00 44.66 ATOM 173 CG LEU H 31 27.409 87.834 14.355 1.00 44.32 ATOM 174 CD1 LEU H 31 26.642 88.279 15.587 1.00 44.20 ATOM 175 CD2 LEU H 31 28.250 86.622 14.670 1.00 44.21 ATOM 176 N GLN H 32 25.010 86.976 10.426 1.00 44.66 ATOM 177 CA GLN H 32 23.945 86.256 9.744 1.00 44.56 ATOM 178 C GLN H 32 24.442 85.569 8.481 1.00 44.70 ATOM 179 O GLN H 32 24.064 84.420 8.220 1.00 44.53 ATOM 180 CB GLN H 32 22.758 87.172 9.411 1.00 44.46 ATOM 181 CG GLN H 32 21.579 86.459 8.704 1.00 44.09 ATOM 182 CD GLN H 32 21.004 85.271 9.505 1.00 44.54 ATOM 183 OE1 GLN H 32 21.000 85.266 10.745 1.00 44.41 ATOM 184 NE2 GLN H 32 20.490 84.275 8.789 1.00 44.57 ATOM 185 N THR H 33 25.290 86.246 7.705 1.00 44.78 ATOM 186 CA THR H 33 25.864 85.598 6.528 1.00 45.17 ATOM 187 C THR H 33 26.758 84.413 6.908 1.00 45.08 ATOM 188 O THR H 33 26.666 83.358 6.276 1.00 45.38 ATOM 189 CB THR H 33 26.668 86.569 5.634 1.00 45.34 ATOM 190 OG1 THR H 33 27.792 87.088 6.357 1.00 45.75 ATOM 191 CG2 THR H 33 25.781 87.707 5.169 1.00 45.56 ATOM 192 N GLU H 34 27.508 84.536 8.009 1.00 44.55 ATOM 193 CA GLU H 34 28.264 83.404 8.552 1.00 44.15 ATOM 194 C GLU H 34 27.400 82.176 8.800 1.00 44.13 ATOM 195 O GLU H 34 27.811 81.062 8.528 1.00 44.24 ATOM 196 CB GLU H 34 28.949 83.791 9.856 1.00 43.89 ATOM 197 CG GLU H 34 30.226 84.579 9.660 1.00 43.53 ATOM 198 CD GLU H 34 31.181 83.884 8.723 1.00 43.18 ATOM 199 OE1 GLU H 34 31.510 84.459 7.663 1.00 42.63 ATOM 200 OE2 GLU H 34 31.569 82.736 9.030 1.00 43.33 ATOM 201 N ASN H 35 26.176 82.393 9.262 1.00 44.27 ATOM 202 CA ASN H 35 25.264 81.306 9.602 1.00 44.07 ATOM 203 C ASN H 35 24.450 80.818 8.418 1.00 44.21 ATOM 204 O ASN H 35 23.450 80.108 8.585 1.00 43.84 ATOM 205 CB ASN H 35 24.338 81.761 10.723 1.00 43.94 ATOM 206 CG ASN H 35 24.991 81.654 12.063 1.00 43.83 ATOM 207 OD1 ASN H 35 25.028 80.572 12.643 1.00 43.74 ATOM 208 ND2 ASN H 35 25.671 82.714 12.477 1.00 43.36 ATOM 209 N1 LDA H 702 16.050 83.513 6.014 1.00 81.75 ATOM 210 O1 LDA H 702 16.560 82.527 5.501 1.00 81.75 ATOM 211 CM1 LDA H 702 15.763 84.513 5.003 1.00 81.85 ATOM 212 CM2 LDA H 702 14.793 83.156 6.675 1.00 81.74 ATOM 213 C1 LDA H 702 16.949 84.090 6.997 1.00 81.59 ATOM 214 C2 LDA H 702 17.614 85.389 7.431 1.00 81.33 ATOM 215 C3 LDA H 702 16.765 86.160 8.427 1.00 81.04 ATOM 216 C4 LDA H 702 17.639 87.013 9.323 1.00 80.81 ATOM 217 C5 LDA H 702 16.841 87.664 10.431 1.00 80.83 ATOM 218 C6 LDA H 702 17.724 87.932 11.637 1.00 80.96 ATOM 219 C7 LDA H 702 17.835 89.418 11.927 1.00 81.05 ATOM 220 C8 LDA H 702 18.753 89.696 13.103 1.00 81.05 ATOM 221 C9 LDA H 702 18.098 89.334 14.425 1.00 81.20 ATOM 222 C10 LDA H 702 18.896 89.881 15.604 1.00 81.40 ATOM 223 C11 LDA H 702 18.225 89.545 16.932 1.00 81.56 ATOM 224 C12 LDA H 702 18.966 90.180 18.098 1.00 81.58 ATOM 225 N1 LDA H 706 35.783 89.654 11.440 1.00 99.31 ATOM 226 O1 LDA H 706 36.039 89.753 10.237 1.00 99.31 ATOM 227 CM1 LDA H 706 35.643 88.254 11.807 1.00 99.24 ATOM 228 CM2 LDA H 706 36.870 90.210 12.236 1.00 99.31 ATOM 229 C1 LDA H 706 34.530 90.377 11.761 1.00 99.31 ATOM 230 C2 LDA H 706 34.003 91.808 11.640 1.00 99.31 ATOM 231 C3 LDA H 706 32.560 91.924 12.121 1.00 99.31 ATOM 232 C4 LDA H 706 32.198 93.355 12.529 1.00 99.31 ATOM 233 C5 LDA H 706 31.747 94.198 11.342 1.00 99.31 ATOM 234 C6 LDA H 706 31.729 95.678 11.696 1.00 99.31 ATOM 235 C7 LDA H 706 31.153 96.523 10.569 1.00 99.31 ATOM 236 C8 LDA H 706 31.519 97.997 10.735 1.00 99.31 ATOM 237 C9 LDA H 706 30.543 98.920 10.002 1.00 99.31 ATOM 238 C10 LDA H 706 30.801 98.977 8.492 1.00 99.31 ATOM 239 C11 LDA H 706 29.775 99.862 7.769 1.00 99.31 ATOM 240 C12 LDA H 706 28.440 99.148 7.548 1.00 99.22 TER ATOM 1 N1 LDA M 701 18.906 101.796 24.518 1.00 82.71 ATOM 2 O1 LDA M 701 20.109 102.032 24.619 1.00 82.78 ATOM 3 CM1 LDA M 701 18.283 101.828 25.828 1.00 82.83 ATOM 4 CM2 LDA M 701 18.252 102.810 23.680 1.00 82.68 ATOM 5 C1 LDA M 701 18.696 100.466 23.915 1.00 82.43 ATOM 6 C2 LDA M 701 18.149 99.051 24.052 1.00 81.94 ATOM 7 C3 LDA M 701 18.344 98.264 22.761 1.00 81.73 ATOM 8 C4 LDA M 701 18.385 96.756 23.004 1.00 81.51 ATOM 9 C5 LDA M 701 18.864 95.998 21.762 1.00 81.38 ATOM 10 C6 LDA M 701 18.944 94.499 22.012 1.00 81.16 ATOM 11 C7 LDA M 701 19.259 93.719 20.740 1.00 81.04 ATOM 12 C8 LDA M 701 20.762 93.510 20.550 1.00 80.97 ATOM 13 C9 LDA M 701 21.066 92.160 19.881 1.00 80.76 ATOM 14 C10 LDA M 701 22.555 92.004 19.561 1.00 80.43 ATOM 15 C11 LDA M 701 22.898 90.592 19.107 1.00 79.98 ATOM 16 C12 LDA M 701 24.399 90.355 19.132 1.00 79.57 TER