HEADER PHOTOSYNTHESIS 19-MAR-15 4YUU TITLE Crystal structure of oxygen-evolving photosystem II from a red alga COMPND MOL_ID: 18; COMPND 2 MOLECULE: PHOTOSYSTEM II REACTION CENTER PROTEIN X; COMPND 3 CHAIN: X1, x1, X2, x2; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.77 ANGSTORMS DBREF 4YUU X 3 42 PDB 4YUU 4YUU 3 42 SEQRES 1 X1 29 PRO SER LEU ALA ALA PHE PHE TRP SER LEU ILE TRP ALA SEQRES 2 X1 29 ALA VAL LEU VAL ILE LEU PRO ILE THR GLY ALA ILE ILE SEQRES 3 X1 29 TRP VAL SER ATOM 1 N PRO X 5 212.064 180.956 115.539 1.00 91.71 ATOM 2 CA PRO X 5 213.222 180.159 115.960 1.00100.11 ATOM 3 C PRO X 5 213.504 178.994 115.018 1.00100.93 ATOM 4 O PRO X 5 214.667 178.656 114.788 1.00101.32 ATOM 5 CB PRO X 5 212.811 179.651 117.345 1.00 97.20 ATOM 6 CG PRO X 5 211.852 180.670 117.844 1.00101.61 ATOM 7 CD PRO X 5 211.096 181.142 116.633 1.00103.48 ATOM 8 N SER X 6 212.446 178.386 114.489 1.00101.53 ATOM 9 CA SER X 6 212.583 177.255 113.577 1.00101.37 ATOM 10 C SER X 6 213.250 177.673 112.270 1.00103.52 ATOM 11 O SER X 6 214.004 176.902 111.674 1.00103.18 ATOM 12 CB SER X 6 211.215 176.628 113.298 1.00 97.19 ATOM 13 OG SER X 6 210.300 177.597 112.817 1.00102.23 ATOM 14 N LEU X 7 212.967 178.896 111.831 1.00104.37 ATOM 15 CA LEU X 7 213.576 179.439 110.621 1.00101.92 ATOM 16 C LEU X 7 215.068 179.665 110.832 1.00100.74 ATOM 17 O LEU X 7 215.883 179.380 109.951 1.00101.90 ATOM 18 CB LEU X 7 212.890 180.744 110.211 1.00 92.72 ATOM 19 CG LEU X 7 213.389 181.400 108.923 1.00 90.08 ATOM 20 N ALA X 8 215.416 180.177 112.010 1.00102.77 ATOM 21 CA ALA X 8 216.810 180.374 112.384 1.00104.78 ATOM 22 C ALA X 8 217.532 179.035 112.449 1.00102.36 ATOM 23 O ALA X 8 218.693 178.923 112.055 1.00 99.67 ATOM 24 CB ALA X 8 216.908 181.099 113.719 1.00105.25 ATOM 25 N ALA X 9 216.833 178.020 112.946 1.00100.69 ATOM 26 CA ALA X 9 217.379 176.671 113.013 1.00 97.03 ATOM 27 C ALA X 9 217.582 176.098 111.614 1.00100.35 ATOM 28 O ALA X 9 218.511 175.325 111.380 1.00100.22 ATOM 29 CB ALA X 9 216.468 175.770 113.829 1.00 99.34 ATOM 30 N PHE X 10 216.708 176.482 110.688 1.00 99.34 ATOM 31 CA PHE X 10 216.827 176.061 109.297 1.00 93.96 ATOM 32 C PHE X 10 218.047 176.697 108.637 1.00 98.85 ATOM 33 O PHE X 10 218.837 176.017 107.973 1.00101.97 ATOM 34 CB PHE X 10 215.556 176.415 108.519 1.00 99.86 ATOM 35 CG PHE X 10 215.692 176.264 107.030 1.00101.33 ATOM 36 CD1 PHE X 10 215.786 175.008 106.452 1.00 95.86 ATOM 37 CD2 PHE X 10 215.719 177.379 106.207 1.00 98.78 ATOM 38 CE1 PHE X 10 215.911 174.867 105.084 1.00 90.48 ATOM 39 CE2 PHE X 10 215.843 177.244 104.838 1.00 99.42 ATOM 40 CZ PHE X 10 215.939 175.986 104.275 1.00 97.04 ATOM 41 N PHE X 11 218.195 178.005 108.826 1.00100.62 ATOM 42 CA PHE X 11 219.346 178.732 108.299 1.00105.97 ATOM 43 C PHE X 11 220.655 178.194 108.875 1.00101.51 ATOM 44 O PHE X 11 221.645 178.039 108.157 1.00103.38 ATOM 45 CB PHE X 11 219.214 180.227 108.598 1.00104.37 ATOM 46 CG PHE X 11 218.199 180.930 107.742 1.00101.53 ATOM 47 CD1 PHE X 11 218.061 180.608 106.401 1.00102.77 ATOM 48 CD2 PHE X 11 217.381 181.911 108.280 1.00 95.70 ATOM 49 CE1 PHE X 11 217.128 181.255 105.610 1.00101.61 ATOM 50 CE2 PHE X 11 216.447 182.561 107.495 1.00 99.00 ATOM 51 CZ PHE X 11 216.320 182.232 106.158 1.00104.13 ATOM 52 N TRP X 12 220.652 177.908 110.173 1.00 95.25 ATOM 53 CA TRP X 12 221.831 177.370 110.839 1.00102.44 ATOM 54 C TRP X 12 222.137 175.967 110.331 1.00106.40 ATOM 55 O TRP X 12 223.302 175.586 110.196 1.00111.27 ATOM 56 CB TRP X 12 221.638 177.356 112.356 1.00 98.92 ATOM 57 N SER X 13 221.085 175.203 110.047 1.00102.13 ATOM 58 CA SER X 13 221.245 173.876 109.465 1.00102.14 ATOM 59 C SER X 13 221.918 173.992 108.105 1.00105.35 ATOM 60 O SER X 13 222.792 173.194 107.763 1.00104.02 ATOM 61 CB SER X 13 219.897 173.171 109.329 1.00 90.70 ATOM 62 OG SER X 13 219.119 173.753 108.299 1.00 97.58 ATOM 63 N LEU X 14 221.507 174.998 107.337 1.00104.44 ATOM 64 CA LEU X 14 222.133 175.281 106.049 1.00103.27 ATOM 65 C LEU X 14 223.596 175.680 106.224 1.00108.92 ATOM 66 O LEU X 14 224.438 175.352 105.387 1.00108.00 ATOM 67 CB LEU X 14 221.372 176.384 105.313 1.00101.98 ATOM 68 CG LEU X 14 220.397 175.931 104.225 1.00102.62 ATOM 69 CD1 LEU X 14 219.460 174.857 104.751 1.00101.05 ATOM 70 CD2 LEU X 14 219.610 177.118 103.692 1.00103.02 ATOM 71 N ILE X 15 223.891 176.384 107.313 1.00109.99 ATOM 72 CA ILE X 15 225.260 176.802 107.605 1.00107.68 ATOM 73 C ILE X 15 226.164 175.604 107.894 1.00107.85 ATOM 74 O ILE X 15 227.197 175.423 107.243 1.00104.85 ATOM 75 CB ILE X 15 225.310 177.772 108.803 1.00104.34 ATOM 76 N TRP X 16 225.768 174.789 108.870 1.00108.04 ATOM 77 CA TRP X 16 226.534 173.600 109.237 1.00108.66 ATOM 78 C TRP X 16 226.666 172.637 108.062 1.00107.66 ATOM 79 O TRP X 16 227.726 172.039 107.851 1.00110.39 ATOM 80 CB TRP X 16 225.887 172.883 110.424 1.00111.54 ATOM 81 CG TRP X 16 225.924 173.668 111.697 1.00112.67 ATOM 82 CD1 TRP X 16 224.856 174.159 112.390 1.00115.88 ATOM 83 CD2 TRP X 16 227.091 174.060 112.429 1.00116.05 ATOM 84 NE1 TRP X 16 225.285 174.829 113.510 1.00119.95 ATOM 85 CE2 TRP X 16 226.654 174.783 113.557 1.00119.58 ATOM 86 CE3 TRP X 16 228.464 173.869 112.241 1.00113.06 ATOM 87 CZ2 TRP X 16 227.539 175.314 114.492 1.00115.65 ATOM 88 CZ3 TRP X 16 229.341 174.398 113.171 1.00111.08 ATOM 89 CH2 TRP X 16 228.875 175.111 114.281 1.00109.98 ATOM 90 N ALA X 17 225.585 172.493 107.301 1.00108.90 ATOM 91 CA ALA X 17 225.598 171.645 106.116 1.00109.22 ATOM 92 C ALA X 17 226.598 172.169 105.095 1.00109.38 ATOM 93 O ALA X 17 227.352 171.396 104.512 1.00110.79 ATOM 94 CB ALA X 17 224.211 171.557 105.501 1.00107.90 ATOM 95 N ALA X 18 226.603 173.483 104.888 1.00110.65 ATOM 96 CA ALA X 18 227.525 174.106 103.943 1.00115.98 ATOM 97 C ALA X 18 228.977 173.899 104.374 1.00114.52 ATOM 98 O ALA X 18 229.843 173.627 103.543 1.00115.43 ATOM 99 CB ALA X 18 227.218 175.589 103.798 1.00109.74 ATOM 100 N VAL X 19 229.235 174.023 105.672 1.00110.11 ATOM 101 CA VAL X 19 230.573 173.784 106.208 1.00118.98 ATOM 102 C VAL X 19 231.019 172.342 105.960 1.00122.98 ATOM 103 O VAL X 19 232.102 172.090 105.412 1.00121.66 ATOM 104 CB VAL X 19 230.639 174.082 107.723 1.00115.26 ATOM 105 CG1 VAL X 19 231.930 173.544 108.319 1.00108.09 ATOM 106 CG2 VAL X 19 230.506 175.577 107.978 1.00114.28 ATOM 107 N LEU X 20 230.164 171.399 106.347 1.00123.34 ATOM 108 CA LEU X 20 230.492 169.982 106.228 1.00122.77 ATOM 109 C LEU X 20 230.145 169.402 104.853 1.00120.47 ATOM 110 O LEU X 20 230.063 168.184 104.688 1.00119.77 ATOM 111 CB LEU X 20 229.789 169.193 107.332 1.00119.83 ATOM 112 CG LEU X 20 230.216 169.623 108.740 1.00116.88 ATOM 113 CD1 LEU X 20 229.380 168.934 109.805 1.00122.41 ATOM 114 CD2 LEU X 20 231.696 169.343 108.950 1.00118.57 ATOM 115 N VAL X 21 229.942 170.278 103.871 1.00120.35 ATOM 116 CA VAL X 21 229.854 169.861 102.474 1.00121.37 ATOM 117 C VAL X 21 230.976 170.545 101.697 1.00120.58 ATOM 118 O VAL X 21 231.337 170.123 100.598 1.00114.31 ATOM 119 CB VAL X 21 228.486 170.196 101.833 1.00120.63 ATOM 120 CG1 VAL X 21 228.436 171.650 101.388 1.00116.22 ATOM 121 CG2 VAL X 21 228.215 169.275 100.653 1.00117.60 ATOM 122 N ILE X 22 231.526 171.603 102.288 1.00127.39 ATOM 123 CA ILE X 22 232.725 172.241 101.758 1.00126.13 ATOM 124 C ILE X 22 233.949 171.439 102.198 1.00122.84 ATOM 125 O ILE X 22 234.929 171.332 101.458 1.00120.40 ATOM 126 CB ILE X 22 232.843 173.715 102.217 1.00119.78 ATOM 127 CG1 ILE X 22 231.907 174.602 101.396 1.00114.64 ATOM 128 CG2 ILE X 22 234.268 174.229 102.078 1.00120.52 ATOM 129 CD1 ILE X 22 231.984 176.069 101.757 1.00108.94 ATOM 130 N LEU X 23 233.877 170.857 103.393 1.00120.24 ATOM 131 CA LEU X 23 234.957 170.004 103.888 1.00121.15 ATOM 132 C LEU X 23 235.301 168.862 102.903 1.00121.99 ATOM 133 O LEU X 23 236.458 168.748 102.481 1.00124.83 ATOM 134 CB LEU X 23 234.597 169.455 105.278 1.00120.44 ATOM 135 CG LEU X 23 235.558 168.538 106.038 1.00126.94 ATOM 136 CD1 LEU X 23 235.552 168.891 107.518 1.00129.12 ATOM 137 CD2 LEU X 23 235.171 167.080 105.848 1.00123.67 ATOM 138 N PRO X 24 234.308 168.032 102.506 1.00125.76 ATOM 139 CA PRO X 24 234.674 166.984 101.542 1.00128.32 ATOM 140 C PRO X 24 235.058 167.541 100.171 1.00129.76 ATOM 141 O PRO X 24 235.991 167.021 99.545 1.00129.50 ATOM 142 CB PRO X 24 233.399 166.132 101.441 1.00125.28 ATOM 143 CG PRO X 24 232.602 166.473 102.648 1.00123.56 ATOM 144 CD PRO X 24 232.891 167.918 102.894 1.00126.83 ATOM 145 N ILE X 25 234.350 168.576 99.722 1.00129.98 ATOM 146 CA ILE X 25 234.627 169.206 98.433 1.00127.27 ATOM 147 C ILE X 25 236.073 169.688 98.324 1.00127.80 ATOM 148 O ILE X 25 236.829 169.258 97.431 1.00125.86 ATOM 149 CB ILE X 25 233.685 170.397 98.185 1.00124.06 ATOM 150 N THR X 26 236.452 170.571 99.243 1.00126.50 ATOM 151 CA THR X 26 237.803 171.103 99.275 1.00125.82 ATOM 152 C THR X 26 238.821 169.997 99.503 1.00125.27 ATOM 153 O THR X 26 239.911 170.041 98.939 1.00124.14 ATOM 154 CB THR X 26 237.965 172.175 100.367 1.00123.84 ATOM 155 N GLY X 27 238.467 169.010 100.325 1.00121.77 ATOM 156 CA GLY X 27 239.327 167.854 100.504 1.00121.31 ATOM 157 C GLY X 27 239.663 167.203 99.174 1.00125.91 ATOM 158 O GLY X 27 240.819 166.891 98.888 1.00122.30 ATOM 159 N ALA X 28 238.642 167.009 98.349 1.00131.86 ATOM 160 CA ALA X 28 238.837 166.403 97.040 1.00128.31 ATOM 161 C ALA X 28 239.654 167.303 96.112 1.00127.05 ATOM 162 O ALA X 28 240.450 166.809 95.307 1.00126.18 ATOM 163 CB ALA X 28 237.496 166.071 96.411 1.00121.47 ATOM 164 N ILE X 29 239.461 168.617 96.213 1.00125.00 ATOM 165 CA ILE X 29 240.218 169.523 95.351 1.00123.69 ATOM 166 C ILE X 29 241.707 169.541 95.720 1.00128.23 ATOM 167 O ILE X 29 242.563 169.510 94.833 1.00127.95 ATOM 168 CB ILE X 29 239.653 170.958 95.395 1.00121.60 ATOM 169 CG1 ILE X 29 238.156 170.937 95.083 1.00115.36 ATOM 170 CG2 ILE X 29 240.385 171.853 94.412 1.00125.16 ATOM 171 CD1 ILE X 29 237.483 172.285 95.166 1.00118.65 ATOM 172 N ILE X 30 242.022 169.578 97.015 1.00132.42 ATOM 173 CA ILE X 30 243.424 169.613 97.432 1.00132.60 ATOM 174 C ILE X 30 244.164 168.348 96.994 1.00128.92 ATOM 175 O ILE X 30 245.322 168.427 96.590 1.00132.45 ATOM 176 CB ILE X 30 243.599 169.816 98.971 1.00128.34 ATOM 177 CG1 ILE X 30 245.086 169.918 99.325 1.00124.21 ATOM 178 CG2 ILE X 30 242.968 168.701 99.779 1.00129.19 ATOM 179 CD1 ILE X 30 245.367 170.016 100.810 1.00128.65 ATOM 180 N TRP X 31 243.508 167.192 97.030 1.00128.27 ATOM 181 CA TRP X 31 244.174 165.986 96.560 1.00128.43 ATOM 182 C TRP X 31 244.083 165.860 95.034 1.00136.77 ATOM 183 O TRP X 31 244.520 164.863 94.463 1.00142.22 ATOM 184 CB TRP X 31 243.594 164.747 97.240 1.00122.96 ATOM 185 N VAL X 32 243.561 166.891 94.374 1.00133.15 ATOM 186 CA VAL X 32 243.366 166.859 92.926 1.00128.00 ATOM 187 C VAL X 32 244.564 167.425 92.151 1.00129.57 ATOM 188 O VAL X 32 244.841 166.999 91.026 1.00130.96 ATOM 189 CB VAL X 32 242.069 167.623 92.537 1.00123.67 ATOM 190 CG1 VAL X 32 242.348 168.777 91.570 1.00124.94 ATOM 191 CG2 VAL X 32 241.034 166.666 91.982 1.00109.35 ATOM 192 N SER X 33 245.278 168.367 92.761 1.00131.94 ATOM 193 CA SER X 33 246.438 168.985 92.124 1.00133.44 ATOM 194 C SER X 33 247.736 168.427 92.697 1.00133.41 ATOM 195 O SER X 33 248.797 168.536 92.081 1.00138.57 ATOM 196 CB SER X 33 246.397 170.504 92.293 1.00136.26 ATOM 197 OG SER X 33 246.432 170.865 93.664 1.00138.34 TER