HEADER PHOTOSYNTHETIC REACTION CENTER 13-DEC-93 1PST TITLE CRYSTALLOGRAPHIC ANALYSES OF SITE-DIRECTED MUTANTS OF THE TITLE 2 PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES COMPND MOL_ID: 3; COMPND 2 MOLECULE: PHOTOSYNTHETIC REACTION CENTER; COMPND 3 CHAIN: H; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.00 ANGSTORMS DBREF 1PST H 12 248 UNP P11846 RCEH_RHOSH 12 248 SEQRES 1 H 24 LEU ALA SER LEU ALA ILE TYR SER PHE TRP ILE PHE LEU SEQRES 2 H 24 ALA GLY LEU ILE TYR TYR LEU GLN THR GLU ASN ATOM 1 N LEU H 12 58.489 32.840 35.531 1.00 33.70 ATOM 2 CA LEU H 12 57.924 31.970 36.532 1.00 31.36 ATOM 3 C LEU H 12 56.472 32.367 36.419 1.00 32.25 ATOM 4 O LEU H 12 55.980 32.077 35.325 1.00 34.78 ATOM 5 CB LEU H 12 58.471 32.269 37.927 1.00 30.95 ATOM 6 CG LEU H 12 59.907 31.922 38.302 1.00 30.83 ATOM 7 CD1 LEU H 12 60.248 30.506 37.826 1.00 31.17 ATOM 8 CD2 LEU H 12 60.841 32.955 37.698 1.00 31.88 ATOM 9 N ALA H 13 55.823 33.077 37.365 1.00 30.96 ATOM 10 CA ALA H 13 54.411 33.468 37.346 1.00 31.70 ATOM 11 C ALA H 13 53.496 32.335 36.908 1.00 34.60 ATOM 12 O ALA H 13 53.063 31.653 37.832 1.00 36.02 ATOM 13 CB ALA H 13 54.199 34.660 36.434 1.00 31.02 ATOM 14 N SER H 14 53.256 32.012 35.621 1.00 35.14 ATOM 15 CA SER H 14 52.426 30.876 35.213 1.00 33.88 ATOM 16 C SER H 14 52.887 29.564 35.860 1.00 32.22 ATOM 17 O SER H 14 52.043 28.731 36.202 1.00 32.49 ATOM 18 CB SER H 14 52.433 30.750 33.669 1.00 35.59 ATOM 19 OG SER H 14 51.148 30.877 33.026 1.00 32.97 ATOM 20 N LEU H 15 54.193 29.371 36.092 1.00 31.06 ATOM 21 CA LEU H 15 54.635 28.218 36.877 1.00 33.79 ATOM 22 C LEU H 15 54.108 28.339 38.320 1.00 35.17 ATOM 23 O LEU H 15 53.502 27.390 38.839 1.00 36.95 ATOM 24 CB LEU H 15 56.164 28.118 36.940 1.00 32.67 ATOM 25 CG LEU H 15 56.722 27.036 37.880 1.00 32.59 ATOM 26 CD1 LEU H 15 57.448 25.966 37.090 1.00 33.32 ATOM 27 CD2 LEU H 15 57.646 27.686 38.894 1.00 33.07 ATOM 28 N ALA H 16 54.289 29.520 38.953 1.00 31.65 ATOM 29 CA ALA H 16 53.898 29.787 40.337 1.00 23.68 ATOM 30 C ALA H 16 52.393 29.640 40.569 1.00 19.97 ATOM 31 O ALA H 16 52.004 28.967 41.523 1.00 17.56 ATOM 32 CB ALA H 16 54.338 31.195 40.706 1.00 17.84 ATOM 33 N ILE H 17 51.515 30.184 39.721 1.00 18.14 ATOM 34 CA ILE H 17 50.075 30.023 39.872 1.00 18.88 ATOM 35 C ILE H 17 49.697 28.555 39.697 1.00 21.38 ATOM 36 O ILE H 17 48.808 28.109 40.428 1.00 24.12 ATOM 37 CB ILE H 17 49.298 30.967 38.842 1.00 17.52 ATOM 38 CG1 ILE H 17 47.803 30.649 38.777 1.00 12.39 ATOM 39 CG2 ILE H 17 49.823 30.785 37.439 1.00 15.16 ATOM 40 CD1 ILE H 17 46.991 31.029 40.010 1.00 10.95 ATOM 41 N TYR H 18 50.342 27.758 38.814 1.00 24.40 ATOM 42 CA TYR H 18 50.026 26.329 38.660 1.00 23.82 ATOM 43 C TYR H 18 50.388 25.622 39.967 1.00 19.18 ATOM 44 O TYR H 18 49.552 24.955 40.580 1.00 16.58 ATOM 45 CB TYR H 18 50.814 25.712 37.465 1.00 27.32 ATOM 46 CG TYR H 18 50.695 24.183 37.332 1.00 37.91 ATOM 47 CD1 TYR H 18 49.443 23.530 37.364 1.00 41.19 ATOM 48 CD2 TYR H 18 51.862 23.405 37.237 1.00 41.72 ATOM 49 CE1 TYR H 18 49.362 22.127 37.326 1.00 40.68 ATOM 50 CE2 TYR H 18 51.788 22.001 37.198 1.00 42.55 ATOM 51 CZ TYR H 18 50.537 21.371 37.247 1.00 43.02 ATOM 52 OH TYR H 18 50.469 19.988 37.268 1.00 41.47 ATOM 53 N SER H 19 51.613 25.828 40.439 1.00 17.29 ATOM 54 CA SER H 19 52.105 25.274 41.687 1.00 16.09 ATOM 55 C SER H 19 51.196 25.642 42.846 1.00 18.48 ATOM 56 O SER H 19 50.836 24.762 43.630 1.00 21.80 ATOM 57 CB SER H 19 53.497 25.793 41.978 1.00 12.12 ATOM 58 OG SER H 19 54.380 25.585 40.885 1.00 11.92 ATOM 59 N PHE H 20 50.751 26.894 42.972 1.00 17.43 ATOM 60 CA PHE H 20 49.856 27.278 44.048 1.00 20.17 ATOM 61 C PHE H 20 48.555 26.494 43.976 1.00 19.58 ATOM 62 O PHE H 20 48.021 26.143 45.027 1.00 24.21 ATOM 63 CB PHE H 20 49.496 28.773 44.013 1.00 24.08 ATOM 64 CG PHE H 20 48.642 29.207 45.208 1.00 27.38 ATOM 65 CD1 PHE H 20 49.238 29.358 46.469 1.00 28.15 ATOM 66 CD2 PHE H 20 47.269 29.431 45.051 1.00 27.67 ATOM 67 CE1 PHE H 20 48.467 29.734 47.572 1.00 26.72 ATOM 68 CE2 PHE H 20 46.510 29.804 46.161 1.00 30.67 ATOM 69 CZ PHE H 20 47.103 29.957 47.418 1.00 27.92 ATOM 70 N TRP H 21 48.001 26.189 42.810 1.00 17.68 ATOM 71 CA TRP H 21 46.782 25.416 42.779 1.00 17.40 ATOM 72 C TRP H 21 46.993 23.946 43.141 1.00 16.72 ATOM 73 O TRP H 21 46.086 23.234 43.579 1.00 14.45 ATOM 74 CB TRP H 21 46.192 25.586 41.409 1.00 19.42 ATOM 75 CG TRP H 21 45.240 26.768 41.348 1.00 20.32 ATOM 76 CD1 TRP H 21 45.570 27.881 40.635 1.00 22.24 ATOM 77 CD2 TRP H 21 43.984 26.841 41.899 1.00 19.88 ATOM 78 NE1 TRP H 21 44.525 28.663 40.711 1.00 22.73 ATOM 79 CE2 TRP H 21 43.557 28.091 41.445 1.00 21.60 ATOM 80 CE3 TRP H 21 43.142 26.060 42.690 1.00 20.98 ATOM 81 CZ2 TRP H 21 42.290 28.577 41.772 1.00 22.79 ATOM 82 CZ3 TRP H 21 41.874 26.542 43.016 1.00 25.30 ATOM 83 CH2 TRP H 21 41.450 27.791 42.562 1.00 25.81 ATOM 84 N ILE H 22 48.219 23.476 42.989 1.00 16.95 ATOM 85 CA ILE H 22 48.585 22.152 43.439 1.00 18.52 ATOM 86 C ILE H 22 48.516 22.224 44.953 1.00 22.78 ATOM 87 O ILE H 22 47.728 21.483 45.545 1.00 26.18 ATOM 88 CB ILE H 22 50.008 21.815 42.961 1.00 16.26 ATOM 89 CG1 ILE H 22 49.985 21.587 41.464 1.00 12.51 ATOM 90 CG2 ILE H 22 50.551 20.611 43.720 1.00 14.50 ATOM 91 CD1 ILE H 22 51.409 21.497 40.922 1.00 12.43 ATOM 92 N PHE H 23 49.282 23.147 45.576 1.00 26.56 ATOM 93 CA PHE H 23 49.362 23.355 47.034 1.00 26.36 ATOM 94 C PHE H 23 47.994 23.327 47.671 1.00 24.04 ATOM 95 O PHE H 23 47.797 22.566 48.608 1.00 25.59 ATOM 96 CB PHE H 23 50.017 24.711 47.375 1.00 30.39 ATOM 97 CG PHE H 23 49.946 25.171 48.829 1.00 33.22 ATOM 98 CD1 PHE H 23 48.872 25.945 49.291 1.00 37.49 ATOM 99 CD2 PHE H 23 50.969 24.830 49.712 1.00 36.91 ATOM 100 CE1 PHE H 23 48.823 26.373 50.621 1.00 38.88 ATOM 101 CE2 PHE H 23 50.916 25.261 51.040 1.00 38.04 ATOM 102 CZ PHE H 23 49.848 26.030 51.497 1.00 37.72 ATOM 103 N LEU H 24 47.068 24.135 47.164 1.00 22.46 ATOM 104 CA LEU H 24 45.715 24.184 47.652 1.00 23.70 ATOM 105 C LEU H 24 45.093 22.810 47.684 1.00 26.58 ATOM 106 O LEU H 24 44.563 22.420 48.726 1.00 32.68 ATOM 107 CB LEU H 24 44.870 25.068 46.779 1.00 21.16 ATOM 108 CG LEU H 24 44.168 26.188 47.512 1.00 23.15 ATOM 109 CD1 LEU H 24 45.209 27.148 48.079 1.00 21.83 ATOM 110 CD2 LEU H 24 43.221 26.902 46.559 1.00 24.56 ATOM 111 N ALA H 25 45.210 22.028 46.618 1.00 26.67 ATOM 112 CA ALA H 25 44.643 20.692 46.594 1.00 25.75 ATOM 113 C ALA H 25 45.238 19.846 47.703 1.00 22.89 ATOM 114 O ALA H 25 44.536 19.031 48.305 1.00 24.18 ATOM 115 CB ALA H 25 44.935 20.029 45.259 1.00 30.14 ATOM 116 N GLY H 26 46.511 20.081 48.008 1.00 20.51 ATOM 117 CA GLY H 26 47.164 19.402 49.110 1.00 26.73 ATOM 118 C GLY H 26 46.495 19.777 50.438 1.00 29.43 ATOM 119 O GLY H 26 45.858 18.938 51.105 1.00 30.88 ATOM 120 N LEU H 27 46.629 21.079 50.745 1.00 27.01 ATOM 121 CA LEU H 27 46.101 21.749 51.924 1.00 24.72 ATOM 122 C LEU H 27 44.677 21.335 52.279 1.00 26.46 ATOM 123 O LEU H 27 44.432 20.675 53.289 1.00 29.55 ATOM 124 CB LEU H 27 46.151 23.246 51.680 1.00 24.67 ATOM 125 CG LEU H 27 45.750 24.198 52.790 1.00 26.16 ATOM 126 CD1 LEU H 27 46.782 24.091 53.898 1.00 29.46 ATOM 127 CD2 LEU H 27 45.687 25.634 52.277 1.00 25.86 ATOM 128 N ILE H 28 43.747 21.639 51.381 1.00 25.08 ATOM 129 CA ILE H 28 42.341 21.380 51.561 1.00 25.27 ATOM 130 C ILE H 28 41.980 19.994 52.055 1.00 27.12 ATOM 131 O ILE H 28 41.256 19.881 53.052 1.00 29.09 ATOM 132 CB ILE H 28 41.639 21.688 50.221 1.00 26.20 ATOM 133 CG1 ILE H 28 41.582 23.204 50.116 1.00 27.54 ATOM 134 CG2 ILE H 28 40.230 21.090 50.111 1.00 27.24 ATOM 135 CD1 ILE H 28 40.966 23.748 48.804 1.00 31.56 ATOM 136 N TYR H 29 42.401 18.896 51.449 1.00 29.54 ATOM 137 CA TYR H 29 41.873 17.649 51.966 1.00 33.43 ATOM 138 C TYR H 29 42.854 17.062 52.932 1.00 36.64 ATOM 139 O TYR H 29 42.458 16.680 54.027 1.00 35.97 ATOM 140 CB TYR H 29 41.589 16.644 50.841 1.00 31.20 ATOM 141 CG TYR H 29 40.256 15.878 50.935 1.00 27.01 ATOM 142 CD1 TYR H 29 40.142 14.698 51.686 1.00 24.82 ATOM 143 CD2 TYR H 29 39.124 16.373 50.271 1.00 23.61 ATOM 144 CE1 TYR H 29 38.917 14.025 51.779 1.00 18.85 ATOM 145 CE2 TYR H 29 37.901 15.703 50.361 1.00 16.36 ATOM 146 CZ TYR H 29 37.807 14.540 51.117 1.00 17.12 ATOM 147 OH TYR H 29 36.583 13.919 51.245 1.00 20.14 ATOM 148 N TYR H 30 44.145 17.161 52.641 1.00 41.82 ATOM 149 CA TYR H 30 45.110 16.362 53.386 1.00 47.59 ATOM 150 C TYR H 30 45.895 16.954 54.541 1.00 47.09 ATOM 151 O TYR H 30 47.031 16.616 54.907 1.00 51.88 ATOM 152 CB TYR H 30 46.034 15.750 52.325 1.00 52.41 ATOM 153 CG TYR H 30 45.091 14.946 51.454 1.00 54.47 ATOM 154 CD1 TYR H 30 44.385 13.886 52.037 1.00 55.54 ATOM 155 CD2 TYR H 30 44.850 15.352 50.144 1.00 54.65 ATOM 156 CE1 TYR H 30 43.410 13.233 51.313 1.00 55.82 ATOM 157 CE2 TYR H 30 43.874 14.684 49.415 1.00 58.90 ATOM 158 CZ TYR H 30 43.164 13.635 50.010 1.00 58.60 ATOM 159 OH TYR H 30 42.168 13.001 49.305 1.00 62.57 ATOM 160 N LEU H 31 45.124 17.833 55.133 1.00 40.81 ATOM 161 CA LEU H 31 45.454 18.483 56.358 1.00 35.88 ATOM 162 C LEU H 31 43.985 18.740 56.646 1.00 35.11 ATOM 163 O LEU H 31 43.318 17.755 56.986 1.00 36.07 ATOM 164 CB LEU H 31 46.308 19.710 56.032 1.00 34.57 ATOM 165 CG LEU H 31 47.195 20.320 57.119 1.00 36.19 ATOM 166 CD1 LEU H 31 46.360 21.120 58.086 1.00 36.48 ATOM 167 CD2 LEU H 31 47.935 19.223 57.850 1.00 34.34 ATOM 168 N GLN H 32 43.405 19.895 56.302 1.00 29.66 ATOM 169 CA GLN H 32 42.045 20.259 56.634 1.00 25.06 ATOM 170 C GLN H 32 40.979 19.198 56.637 1.00 24.75 ATOM 171 O GLN H 32 40.724 18.708 57.739 1.00 27.89 ATOM 172 CB GLN H 32 41.562 21.362 55.730 1.00 26.68 ATOM 173 CG GLN H 32 41.842 22.745 56.246 1.00 28.45 ATOM 174 CD GLN H 32 43.306 23.001 56.464 1.00 31.10 ATOM 175 OE1 GLN H 32 44.167 22.451 55.787 1.00 30.29 ATOM 176 NE2 GLN H 32 43.654 23.843 57.410 1.00 34.29 ATOM 177 N THR H 33 40.386 18.710 55.549 1.00 24.62 ATOM 178 CA THR H 33 39.258 17.805 55.721 1.00 25.31 ATOM 179 C THR H 33 39.688 16.471 56.336 1.00 26.56 ATOM 180 O THR H 33 38.875 15.823 57.008 1.00 28.41 ATOM 181 CB THR H 33 38.512 17.566 54.372 1.00 24.58 ATOM 182 OG1 THR H 33 38.557 18.765 53.596 1.00 27.82 ATOM 183 CG2 THR H 33 37.016 17.275 54.610 1.00 15.17 ATOM 184 N GLU H 34 40.971 16.096 56.262 1.00 27.25 ATOM 185 CA GLU H 34 41.424 14.886 56.924 1.00 28.59 ATOM 186 C GLU H 34 41.305 15.135 58.421 1.00 26.19 ATOM 187 O GLU H 34 40.667 14.375 59.166 1.00 28.60 ATOM 188 CB GLU H 34 42.873 14.567 56.629 1.00 31.27 ATOM 189 CG GLU H 34 43.020 13.262 55.862 1.00 37.60 ATOM 190 CD GLU H 34 44.415 12.645 55.993 1.00 45.65 ATOM 191 OE1 GLU H 34 45.415 13.356 55.853 1.00 51.71 ATOM 192 OE2 GLU H 34 44.511 11.439 56.245 1.00 48.06 ATOM 193 N ASN H 35 41.813 16.286 58.862 1.00 20.29 ATOM 194 CA ASN H 35 41.810 16.610 60.267 1.00 14.31 ATOM 195 C ASN H 35 40.402 16.889 60.747 1.00 12.67 ATOM 196 O ASN H 35 40.190 16.849 61.959 1.00 18.56 ATOM 197 CB ASN H 35 42.746 17.794 60.510 1.00 11.45 ATOM 198 CG ASN H 35 44.010 17.414 61.310 1.00 16.57 ATOM 199 OD1 ASN H 35 45.087 17.120 60.795 1.00 14.18 ATOM 200 ND2 ASN H 35 44.026 17.415 62.632 1.00 19.16 TER