HEADER PHOTOSYNTHETIC REACTION CENTER 09-SEP-91 4RCR TITLE STRUCTURE OF THE REACTION CENTER FROM RHODOBACTER SPHAEROIDES R-26 TITLE 2 AND 2.4.1: PROTEIN-COFACTOR (BACTERIOCHLOROPHYLL, BACTERIOPHEOPHYTIN, TITLE 3 AND CAROTENOID) INTERACTIONS 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. 2.80 ANGSTORMS DBREF 4RCR H 1 260 UNP P11846 RCEH_RHOSH 1 260 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 56.489 33.083 33.765 1.00 21.61 ATOM 2 CA LEU H 12 57.039 32.072 34.693 1.00 22.88 ATOM 3 C LEU H 12 55.927 31.775 35.735 1.00 24.36 ATOM 4 O LEU H 12 55.559 30.639 35.982 1.00 22.26 ATOM 5 CB LEU H 12 58.255 32.730 35.415 1.00 20.86 ATOM 6 CG LEU H 12 58.698 32.000 36.690 1.00 16.30 ATOM 7 CD1 LEU H 12 59.825 32.711 37.404 1.00 12.57 ATOM 8 CD2 LEU H 12 57.471 31.892 37.586 1.00 14.88 ATOM 9 N ALA H 13 55.575 32.900 36.342 1.00 27.20 ATOM 10 CA ALA H 13 54.588 32.998 37.403 1.00 30.38 ATOM 11 C ALA H 13 53.437 32.026 37.218 1.00 31.49 ATOM 12 O ALA H 13 52.604 31.858 38.141 1.00 33.74 ATOM 13 CB ALA H 13 54.109 34.439 37.585 1.00 29.46 ATOM 14 N SER H 14 53.441 31.363 36.066 1.00 29.72 ATOM 15 CA SER H 14 52.423 30.342 35.754 1.00 25.88 ATOM 16 C SER H 14 52.803 29.066 36.509 1.00 19.92 ATOM 17 O SER H 14 51.965 28.233 36.797 1.00 17.64 ATOM 18 CB SER H 14 52.274 30.081 34.277 1.00 31.84 ATOM 19 OG SER H 14 51.212 30.857 33.711 1.00 38.20 ATOM 20 N LEU H 15 54.094 29.014 36.790 1.00 18.71 ATOM 21 CA LEU H 15 54.672 27.940 37.613 1.00 17.39 ATOM 22 C LEU H 15 54.382 28.279 39.090 1.00 15.18 ATOM 23 O LEU H 15 54.027 27.414 39.883 1.00 16.94 ATOM 24 CB LEU H 15 56.197 27.879 37.347 1.00 16.66 ATOM 25 CG LEU H 15 56.936 27.321 38.585 1.00 18.51 ATOM 26 CD1 LEU H 15 57.196 25.834 38.422 1.00 19.81 ATOM 27 CD2 LEU H 15 58.206 28.113 38.775 1.00 21.47 ATOM 28 N ALA H 16 54.474 29.571 39.356 1.00 12.13 ATOM 29 CA ALA H 16 53.960 30.131 40.616 1.00 9.03 ATOM 30 C ALA H 16 52.520 29.598 40.767 1.00 9.04 ATOM 31 O ALA H 16 52.328 28.398 41.005 1.00 8.00 ATOM 32 CB ALA H 16 53.935 31.653 40.536 1.00 9.64 ATOM 33 N ILE H 17 51.602 30.439 40.338 1.00 11.60 ATOM 34 CA ILE H 17 50.176 30.219 40.411 1.00 16.23 ATOM 35 C ILE H 17 49.691 28.860 39.942 1.00 17.99 ATOM 36 O ILE H 17 48.448 28.636 39.971 1.00 17.09 ATOM 37 CB ILE H 17 49.386 31.348 39.575 1.00 16.92 ATOM 38 CG1 ILE H 17 48.054 31.596 40.385 1.00 13.20 ATOM 39 CG2 ILE H 17 48.955 30.703 38.197 1.00 18.34 ATOM 40 CD1 ILE H 17 47.410 30.233 40.790 1.00 8.00 ATOM 41 N TYR H 18 50.502 28.159 39.168 1.00 21.58 ATOM 42 CA TYR H 18 50.105 26.839 38.658 1.00 25.32 ATOM 43 C TYR H 18 50.425 25.739 39.641 1.00 26.20 ATOM 44 O TYR H 18 49.553 24.853 39.892 1.00 28.39 ATOM 45 CB TYR H 18 50.439 26.593 37.192 1.00 26.11 ATOM 46 CG TYR H 18 51.552 25.592 36.965 1.00 26.51 ATOM 47 CD1 TYR H 18 51.312 24.256 37.311 1.00 30.17 ATOM 48 CD2 TYR H 18 52.878 26.003 36.802 1.00 27.26 ATOM 49 CE1 TYR H 18 52.352 23.331 37.382 1.00 30.97 ATOM 50 CE2 TYR H 18 53.939 25.092 36.861 1.00 26.75 ATOM 51 CZ TYR H 18 53.656 23.768 37.169 1.00 29.96 ATOM 52 OH TYR H 18 54.638 22.844 37.356 1.00 36.61 ATOM 53 N SER H 19 51.477 25.925 40.453 1.00 22.68 ATOM 54 CA SER H 19 51.827 24.951 41.505 1.00 15.91 ATOM 55 C SER H 19 51.265 25.388 42.842 1.00 11.99 ATOM 56 O SER H 19 50.707 24.558 43.581 1.00 9.31 ATOM 57 CB SER H 19 53.310 24.676 41.564 1.00 16.26 ATOM 58 OG SER H 19 53.973 25.841 42.045 1.00 20.38 ATOM 59 N PHE H 20 51.280 26.701 43.103 1.00 11.00 ATOM 60 CA PHE H 20 50.436 27.132 44.247 1.00 13.21 ATOM 61 C PHE H 20 49.234 26.174 44.200 1.00 13.26 ATOM 62 O PHE H 20 49.172 25.352 45.127 1.00 19.21 ATOM 63 CB PHE H 20 50.035 28.533 44.453 1.00 18.01 ATOM 64 CG PHE H 20 48.710 28.774 45.150 1.00 19.19 ATOM 65 CD1 PHE H 20 47.538 28.231 44.623 1.00 20.59 ATOM 66 CD2 PHE H 20 48.630 29.591 46.267 1.00 18.76 ATOM 67 CE1 PHE H 20 46.293 28.585 45.136 1.00 20.45 ATOM 68 CE2 PHE H 20 47.388 29.894 46.841 1.00 20.01 ATOM 69 CZ PHE H 20 46.211 29.447 46.229 1.00 17.22 ATOM 70 N TRP H 21 48.538 26.102 43.089 1.00 12.97 ATOM 71 CA TRP H 21 47.392 25.163 43.061 1.00 19.43 ATOM 72 C TRP H 21 47.745 23.798 43.578 1.00 23.05 ATOM 73 O TRP H 21 46.858 22.926 43.844 1.00 25.68 ATOM 74 CB TRP H 21 46.471 25.302 41.916 1.00 23.60 ATOM 75 CG TRP H 21 45.646 26.543 41.863 1.00 27.44 ATOM 76 CD1 TRP H 21 46.052 27.773 41.427 1.00 29.57 ATOM 77 CD2 TRP H 21 44.296 26.710 42.313 1.00 28.98 ATOM 78 NE1 TRP H 21 45.007 28.671 41.502 1.00 31.60 ATOM 79 CE2 TRP H 21 43.922 28.050 42.041 1.00 28.40 ATOM 80 CE3 TRP H 21 43.360 25.831 42.854 1.00 30.64 ATOM 81 CZ2 TRP H 21 42.666 28.557 42.320 1.00 26.62 ATOM 82 CZ3 TRP H 21 42.098 26.321 43.121 1.00 33.56 ATOM 83 CH2 TRP H 21 41.759 27.659 42.862 1.00 33.47 ATOM 84 N ILE H 22 48.978 23.635 44.063 1.00 25.09 ATOM 85 CA ILE H 22 49.286 22.432 44.870 1.00 27.56 ATOM 86 C ILE H 22 49.150 22.675 46.331 1.00 31.71 ATOM 87 O ILE H 22 48.115 22.176 46.893 1.00 34.13 ATOM 88 CB ILE H 22 50.267 21.512 44.230 1.00 26.00 ATOM 89 CG1 ILE H 22 49.766 20.983 42.845 1.00 20.30 ATOM 90 CG2 ILE H 22 50.977 20.435 45.043 1.00 29.54 ATOM 91 CD1 ILE H 22 50.841 21.336 41.738 1.00 20.99 ATOM 92 N PHE H 23 49.830 23.659 46.932 1.00 34.52 ATOM 93 CA PHE H 23 49.680 24.021 48.333 1.00 36.60 ATOM 94 C PHE H 23 48.180 24.024 48.736 1.00 38.75 ATOM 95 O PHE H 23 47.925 24.155 49.959 1.00 40.62 ATOM 96 CB PHE H 23 50.431 25.080 49.026 1.00 32.00 ATOM 97 CG PHE H 23 51.669 25.787 48.699 1.00 32.75 ATOM 98 CD1 PHE H 23 52.935 25.242 48.922 1.00 32.40 ATOM 99 CD2 PHE H 23 51.650 27.165 48.359 1.00 34.65 ATOM 100 CE1 PHE H 23 54.105 25.904 48.505 1.00 30.82 ATOM 101 CE2 PHE H 23 52.790 27.860 47.990 1.00 31.01 ATOM 102 CZ PHE H 23 54.041 27.244 48.099 1.00 27.85 ATOM 103 N LEU H 24 47.299 24.066 47.767 1.00 39.02 ATOM 104 CA LEU H 24 45.861 24.293 47.979 1.00 38.43 ATOM 105 C LEU H 24 45.099 22.984 48.028 1.00 35.97 ATOM 106 O LEU H 24 44.572 22.585 49.097 1.00 36.50 ATOM 107 CB LEU H 24 45.352 25.316 46.971 1.00 42.38 ATOM 108 CG LEU H 24 44.347 26.372 47.367 1.00 43.07 ATOM 109 CD1 LEU H 24 44.327 27.552 46.388 1.00 39.82 ATOM 110 CD2 LEU H 24 42.936 25.761 47.401 1.00 43.60 ATOM 111 N ALA H 25 44.866 22.438 46.843 1.00 33.98 ATOM 112 CA ALA H 25 44.191 21.097 46.788 1.00 33.00 ATOM 113 C ALA H 25 44.953 20.257 47.855 1.00 30.67 ATOM 114 O ALA H 25 44.373 19.773 48.820 1.00 28.81 ATOM 115 CB ALA H 25 44.356 20.512 45.407 1.00 34.59 ATOM 116 N GLY H 26 46.252 20.480 47.773 1.00 30.18 ATOM 117 CA GLY H 26 47.233 19.937 48.709 1.00 30.04 ATOM 118 C GLY H 26 46.639 19.910 50.106 1.00 30.23 ATOM 119 O GLY H 26 46.219 18.840 50.582 1.00 34.21 ATOM 120 N LEU H 27 46.454 21.099 50.681 1.00 27.99 ATOM 121 CA LEU H 27 45.991 21.141 52.085 1.00 23.72 ATOM 122 C LEU H 27 44.550 20.717 52.195 1.00 21.88 ATOM 123 O LEU H 27 44.316 19.606 52.741 1.00 22.65 ATOM 124 CB LEU H 27 46.409 22.426 52.744 1.00 16.74 ATOM 125 CG LEU H 27 45.687 23.670 52.244 1.00 13.85 ATOM 126 CD1 LEU H 27 44.189 23.383 52.190 1.00 12.93 ATOM 127 CD2 LEU H 27 46.031 24.816 53.162 1.00 17.82 ATOM 128 N ILE H 28 43.652 21.439 51.572 1.00 20.06 ATOM 129 CA ILE H 28 42.219 21.168 51.683 1.00 25.12 ATOM 130 C ILE H 28 41.895 19.773 52.097 1.00 32.34 ATOM 131 O ILE H 28 42.049 19.397 53.308 1.00 36.47 ATOM 132 CB ILE H 28 41.455 21.771 50.486 1.00 20.42 ATOM 133 CG1 ILE H 28 41.903 23.259 50.353 1.00 18.90 ATOM 134 CG2 ILE H 28 39.912 21.660 50.625 1.00 18.33 ATOM 135 CD1 ILE H 28 41.923 23.768 48.894 1.00 23.59 ATOM 136 N TYR H 29 41.484 18.912 51.180 1.00 37.31 ATOM 137 CA TYR H 29 41.200 17.507 51.494 1.00 39.70 ATOM 138 C TYR H 29 42.353 16.823 52.208 1.00 41.47 ATOM 139 O TYR H 29 42.214 15.632 52.580 1.00 42.36 ATOM 140 CB TYR H 29 40.708 16.675 50.301 1.00 34.78 ATOM 141 CG TYR H 29 39.324 16.096 50.487 1.00 26.34 ATOM 142 CD1 TYR H 29 38.229 16.946 50.279 1.00 25.58 ATOM 143 CD2 TYR H 29 39.109 14.815 51.003 1.00 19.76 ATOM 144 CE1 TYR H 29 36.934 16.499 50.504 1.00 24.75 ATOM 145 CE2 TYR H 29 37.815 14.352 51.247 1.00 18.39 ATOM 146 CZ TYR H 29 36.743 15.191 50.967 1.00 23.25 ATOM 147 OH TYR H 29 35.464 14.789 51.211 1.00 29.62 ATOM 148 N TYR H 30 43.527 17.435 52.196 1.00 43.07 ATOM 149 CA TYR H 30 44.611 16.920 53.070 1.00 46.99 ATOM 150 C TYR H 30 44.425 17.487 54.479 1.00 46.27 ATOM 151 O TYR H 30 43.314 17.356 55.080 1.00 47.98 ATOM 152 CB TYR H 30 45.968 17.019 52.472 1.00 53.08 ATOM 153 CG TYR H 30 46.915 15.843 52.551 1.00 56.26 ATOM 154 CD1 TYR H 30 46.650 14.661 51.856 1.00 57.66 ATOM 155 CD2 TYR H 30 48.181 15.987 53.146 1.00 56.43 ATOM 156 CE1 TYR H 30 47.594 13.635 51.794 1.00 60.22 ATOM 157 CE2 TYR H 30 49.116 14.958 53.130 1.00 57.96 ATOM 158 CZ TYR H 30 48.827 13.783 52.433 1.00 60.36 ATOM 159 OH TYR H 30 49.770 12.786 52.392 1.00 57.62 ATOM 160 N LEU H 31 45.529 17.885 55.106 1.00 40.99 ATOM 161 CA LEU H 31 45.497 18.342 56.507 1.00 33.94 ATOM 162 C LEU H 31 44.047 18.713 56.858 1.00 31.10 ATOM 163 O LEU H 31 43.271 17.882 57.323 1.00 28.41 ATOM 164 CB LEU H 31 46.456 19.531 56.610 1.00 32.85 ATOM 165 CG LEU H 31 46.977 19.858 57.997 1.00 34.94 ATOM 166 CD1 LEU H 31 47.912 18.747 58.485 1.00 37.76 ATOM 167 CD2 LEU H 31 47.746 21.171 57.947 1.00 35.15 ATOM 168 N GLN H 32 43.712 19.936 56.505 1.00 31.30 ATOM 169 CA GLN H 32 42.412 20.543 56.763 1.00 32.58 ATOM 170 C GLN H 32 41.381 19.458 57.000 1.00 35.27 ATOM 171 O GLN H 32 41.453 18.791 58.060 1.00 36.72 ATOM 172 CB GLN H 32 41.976 21.606 55.796 1.00 35.13 ATOM 173 CG GLN H 32 42.747 22.886 55.789 1.00 38.26 ATOM 174 CD GLN H 32 43.774 23.093 54.724 1.00 40.70 ATOM 175 OE1 GLN H 32 44.311 22.215 54.038 1.00 39.61 ATOM 176 NE2 GLN H 32 44.130 24.384 54.543 1.00 41.85 ATOM 177 N THR H 33 40.568 19.163 55.980 1.00 37.18 ATOM 178 CA THR H 33 39.452 18.249 56.118 1.00 36.49 ATOM 179 C THR H 33 39.931 16.977 56.857 1.00 38.66 ATOM 180 O THR H 33 39.047 16.136 57.097 1.00 40.04 ATOM 181 CB THR H 33 38.635 17.755 54.892 1.00 31.48 ATOM 182 OG1 THR H 33 38.690 18.699 53.820 1.00 34.13 ATOM 183 CG2 THR H 33 37.197 17.333 55.254 1.00 26.35 ATOM 184 N GLU H 34 41.228 16.737 56.662 1.00 39.27 ATOM 185 CA GLU H 34 41.817 15.552 57.322 1.00 39.74 ATOM 186 C GLU H 34 41.525 15.658 58.819 1.00 38.48 ATOM 187 O GLU H 34 40.820 14.787 59.376 1.00 39.96 ATOM 188 CB GLU H 34 43.299 15.393 57.095 1.00 42.71 ATOM 189 CG GLU H 34 43.794 14.011 56.698 1.00 49.58 ATOM 190 CD GLU H 34 45.087 13.532 57.280 1.00 53.94 ATOM 191 OE1 GLU H 34 45.943 14.432 57.426 1.00 52.97 ATOM 192 OE2 GLU H 34 45.327 12.327 57.420 1.00 56.38 ATOM 193 N ASN H 35 41.786 16.849 59.354 1.00 34.82 ATOM 194 CA ASN H 35 41.692 17.060 60.800 1.00 32.12 ATOM 195 C ASN H 35 40.271 17.101 61.272 1.00 31.12 ATOM 196 O ASN H 35 39.859 16.287 62.155 1.00 30.37 ATOM 197 CB ASN H 35 42.789 17.858 61.399 1.00 32.38 ATOM 198 CG ASN H 35 44.194 17.323 61.134 1.00 33.71 ATOM 199 OD1 ASN H 35 45.168 17.532 61.870 1.00 32.53 ATOM 200 ND2 ASN H 35 44.356 16.684 59.973 1.00 37.84 TER