HEADER TRANSFERASE/OXIDOREDUCTASE/LYASE 03-JUN-03 1PJQ TITLE Structure and function of CysG, the multifunctional TITLE 2 methyltransferase/dehydrogenase/ferrochelatase for siroheme synthesis COMPND MOL_ID: 1; COMPND 2 MOLECULE: Siroheme synthase; COMPND 3 CHAIN: A, B; COMPND 4 EC: 2.1.1.107, 1.-.-.-, 4.99.1.-; COMPND 5 ENGINEERED: YES; COMPND 6 Residues 1-212 (CysGB) are a dehydrogenase/ferrochelatase, Residues COMPND 7 OTHER_DETAILS: 213-457 (CysGA) are a bismethyltransferase; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.21 ANGSTORMS DBREF 1PJQ B 1 457 UNP P25924 CYSG_SALTY 1 457 MODRES 1PJQ SEP B 128 SER PHOSPHOSERINE SEQRES 1 B 34 PRO SER ILE ILE ASP ARG SER PRO LEU MET VAL ALA VAL SEQRES 2 B 34 SER SER GLY GLY THR SER PRO VAL LEU ALA ARG LEU LEU SEQRES 3 B 34 ARG GLU LYS LEU GLU SER LEU LEU ATOM 1 N PRO B 114 -42.057 131.877 20.702 1.00 22.98 ATOM 2 CA PRO B 114 -40.893 132.751 20.884 1.00 21.63 ATOM 3 C PRO B 114 -40.172 132.513 22.204 1.00 21.50 ATOM 4 O PRO B 114 -40.682 131.809 23.070 1.00 18.19 ATOM 5 CB PRO B 114 -41.517 134.138 20.849 1.00 21.29 ATOM 6 CG PRO B 114 -42.806 133.902 21.604 1.00 23.47 ATOM 7 CD PRO B 114 -43.309 132.610 20.980 1.00 21.82 ATOM 8 N SER B 115 -38.982 133.104 22.344 1.00 21.48 ATOM 9 CA SER B 115 -38.225 133.020 23.593 1.00 20.32 ATOM 10 C SER B 115 -38.867 134.115 24.460 1.00 20.56 ATOM 11 O SER B 115 -39.099 135.223 23.981 1.00 19.06 ATOM 12 CB SER B 115 -36.747 133.329 23.342 1.00 21.47 ATOM 13 OG SER B 115 -36.107 132.265 22.647 1.00 22.56 ATOM 14 N ILE B 116 -39.125 133.822 25.730 1.00 21.48 ATOM 15 CA ILE B 116 -39.809 134.779 26.601 1.00 23.50 ATOM 16 C ILE B 116 -39.059 135.360 27.807 1.00 23.41 ATOM 17 O ILE B 116 -38.247 134.689 28.439 1.00 23.75 ATOM 18 CB ILE B 116 -41.126 134.133 27.117 1.00 26.43 ATOM 19 CG1 ILE B 116 -41.984 133.706 25.921 1.00 26.78 ATOM 20 CG2 ILE B 116 -41.872 135.086 28.038 1.00 24.43 ATOM 21 CD1 ILE B 116 -43.259 132.975 26.306 1.00 32.21 ATOM 22 N ILE B 117 -39.335 136.627 28.106 1.00 24.26 ATOM 23 CA ILE B 117 -38.756 137.305 29.270 1.00 23.29 ATOM 24 C ILE B 117 -39.978 137.633 30.150 1.00 22.56 ATOM 25 O ILE B 117 -40.821 138.458 29.795 1.00 19.55 ATOM 26 CB ILE B 117 -38.018 138.609 28.876 1.00 24.38 ATOM 27 CG1 ILE B 117 -37.013 138.337 27.753 1.00 25.79 ATOM 28 CG2 ILE B 117 -37.300 139.175 30.078 1.00 25.37 ATOM 29 CD1 ILE B 117 -37.645 138.247 26.371 1.00 27.44 ATOM 30 N ASP B 118 -40.062 136.987 31.302 1.00 23.05 ATOM 31 CA ASP B 118 -41.218 137.142 32.187 1.00 23.83 ATOM 32 C ASP B 118 -41.057 138.094 33.369 1.00 25.09 ATOM 33 O ASP B 118 -40.271 137.840 34.280 1.00 24.36 ATOM 34 CB ASP B 118 -41.611 135.754 32.706 1.00 24.85 ATOM 35 CG ASP B 118 -42.907 135.752 33.507 1.00 27.86 ATOM 36 OD1 ASP B 118 -43.240 134.683 34.060 1.00 31.08 ATOM 37 OD2 ASP B 118 -43.599 136.788 33.587 1.00 27.35 ATOM 38 N ARG B 119 -41.820 139.185 33.339 1.00 25.43 ATOM 39 CA ARG B 119 -41.836 140.181 34.412 1.00 24.47 ATOM 40 C ARG B 119 -43.317 140.523 34.597 1.00 24.25 ATOM 41 O ARG B 119 -43.693 141.670 34.843 1.00 21.12 ATOM 42 CB ARG B 119 -41.043 141.432 34.003 1.00 25.96 ATOM 43 CG ARG B 119 -39.554 141.199 33.746 1.00 22.98 ATOM 44 CD ARG B 119 -38.774 140.872 35.017 1.00 24.54 ATOM 45 NE ARG B 119 -37.335 140.783 34.739 1.00 25.29 ATOM 46 CZ ARG B 119 -36.746 139.761 34.117 1.00 25.40 ATOM 47 NH1 ARG B 119 -37.465 138.715 33.712 1.00 21.74 ATOM 48 NH2 ARG B 119 -35.436 139.794 33.875 1.00 21.70 ATOM 49 N SER B 120 -44.143 139.490 34.436 1.00 24.25 ATOM 50 CA SER B 120 -45.594 139.561 34.545 1.00 25.45 ATOM 51 C SER B 120 -46.102 140.563 35.584 1.00 25.42 ATOM 52 O SER B 120 -45.640 140.574 36.740 1.00 23.44 ATOM 53 CB SER B 120 -46.134 138.160 34.867 1.00 27.69 ATOM 54 OG SER B 120 -47.414 137.959 34.302 1.00 33.95 ATOM 55 N PRO B 121 -47.096 141.388 35.202 1.00 24.22 ATOM 56 CA PRO B 121 -47.785 141.457 33.902 1.00 25.63 ATOM 57 C PRO B 121 -46.989 141.959 32.695 1.00 25.72 ATOM 58 O PRO B 121 -47.493 141.944 31.571 1.00 25.04 ATOM 59 CB PRO B 121 -48.981 142.362 34.195 1.00 26.64 ATOM 60 CG PRO B 121 -48.431 143.294 35.241 1.00 23.84 ATOM 61 CD PRO B 121 -47.700 142.337 36.153 1.00 23.06 ATOM 62 N LEU B 122 -45.766 142.431 32.912 1.00 27.23 ATOM 63 CA LEU B 122 -44.959 142.901 31.790 1.00 25.52 ATOM 64 C LEU B 122 -44.235 141.688 31.210 1.00 24.50 ATOM 65 O LEU B 122 -43.691 140.881 31.947 1.00 24.26 ATOM 66 CB LEU B 122 -43.948 143.958 32.259 1.00 28.24 ATOM 67 CG LEU B 122 -43.225 144.778 31.187 1.00 28.59 ATOM 68 CD1 LEU B 122 -42.278 143.906 30.386 1.00 30.49 ATOM 69 CD2 LEU B 122 -44.252 145.419 30.269 1.00 29.40 ATOM 70 N MET B 123 -44.240 141.558 29.890 1.00 25.39 ATOM 71 CA MET B 123 -43.585 140.439 29.230 1.00 26.85 ATOM 72 C MET B 123 -43.047 140.813 27.850 1.00 24.77 ATOM 73 O MET B 123 -43.662 141.579 27.115 1.00 23.74 ATOM 74 CB MET B 123 -44.568 139.287 29.065 1.00 30.67 ATOM 75 CG MET B 123 -45.098 138.709 30.364 1.00 36.00 ATOM 76 SD MET B 123 -46.406 137.571 29.975 1.00 45.10 ATOM 77 CE MET B 123 -45.415 136.177 29.302 1.00 40.91 ATOM 78 N VAL B 124 -41.895 140.255 27.507 1.00 23.52 ATOM 79 CA VAL B 124 -41.289 140.501 26.214 1.00 23.46 ATOM 80 C VAL B 124 -41.075 139.146 25.549 1.00 23.08 ATOM 81 O VAL B 124 -40.777 138.154 26.222 1.00 25.09 ATOM 82 CB VAL B 124 -39.946 141.217 26.363 1.00 25.15 ATOM 83 CG1 VAL B 124 -39.410 141.602 24.990 1.00 22.45 ATOM 84 CG2 VAL B 124 -40.115 142.439 27.246 1.00 23.97 ATOM 85 N ALA B 125 -41.246 139.111 24.234 1.00 22.55 ATOM 86 CA ALA B 125 -41.085 137.886 23.461 1.00 23.06 ATOM 87 C ALA B 125 -40.210 138.175 22.251 1.00 23.05 ATOM 88 O ALA B 125 -40.313 139.239 21.643 1.00 24.00 ATOM 89 CB ALA B 125 -42.460 137.364 23.015 1.00 20.91 ATOM 90 N VAL B 126 -39.346 137.222 21.912 1.00 24.72 ATOM 91 CA VAL B 126 -38.435 137.359 20.779 1.00 23.79 ATOM 92 C VAL B 126 -38.553 136.177 19.815 1.00 24.95 ATOM 93 O VAL B 126 -38.549 135.008 20.221 1.00 22.55 ATOM 94 CB VAL B 126 -36.959 137.426 21.245 1.00 25.70 ATOM 95 CG1 VAL B 126 -36.032 137.643 20.035 1.00 25.73 ATOM 96 CG2 VAL B 126 -36.786 138.544 22.272 1.00 22.93 ATOM 97 N SER B 127 -38.655 136.485 18.532 1.00 24.31 ATOM 98 CA SER B 127 -38.741 135.429 17.508 1.00 27.46 ATOM 99 C SER B 127 -37.725 135.734 16.292 1.00 26.29 ATOM 100 O SER B 127 -37.690 136.932 15.982 1.00 23.94 ATOM 101 CB SER B 127 -40.162 135.329 16.967 1.00 28.30 ATOM 102 OG SER B 127 -40.184 134.462 15.840 1.00 29.91 ATOM 103 N SEP B 128 -36.876 134.567 15.446 1.00 30.20 ATOM 104 CA SEP B 128 -35.843 134.252 14.266 1.00 34.84 ATOM 105 CB SEP B 128 -35.121 132.805 14.658 1.00 30.71 ATOM 106 OG SEP B 128 -35.709 131.860 16.108 1.00 43.16 ATOM 107 C SEP B 128 -36.587 134.103 13.075 1.00 34.77 ATOM 108 O SEP B 128 -35.940 134.187 11.874 1.00 38.42 ATOM 109 P SEP B 128 -37.116 131.206 16.959 1.00 43.77 ATOM 110 O1P SEP B 128 -36.448 130.570 18.244 1.00 53.62 ATOM 111 O2P SEP B 128 -37.724 130.133 16.098 1.00 45.67 ATOM 112 O3P SEP B 128 -37.959 132.448 17.236 1.00 52.63 ATOM 113 N GLY B 129 -38.066 133.997 13.493 1.00 35.03 ATOM 114 CA GLY B 129 -39.011 133.802 12.447 1.00 37.11 ATOM 115 C GLY B 129 -38.677 132.413 11.886 1.00 39.38 ATOM 116 O GLY B 129 -39.065 132.074 10.773 1.00 40.89 ATOM 117 N GLY B 130 -37.940 131.621 12.666 1.00 40.10 ATOM 118 CA GLY B 130 -37.548 130.289 12.238 1.00 38.79 ATOM 119 C GLY B 130 -36.121 130.212 11.710 1.00 39.42 ATOM 120 O GLY B 130 -35.626 129.120 11.428 1.00 39.96 ATOM 121 N THR B 131 -35.455 131.361 11.589 1.00 37.36 ATOM 122 CA THR B 131 -34.089 131.417 11.072 1.00 36.22 ATOM 123 C THR B 131 -32.964 131.103 12.056 1.00 37.20 ATOM 124 O THR B 131 -32.052 130.330 11.737 1.00 36.70 ATOM 125 CB THR B 131 -33.774 132.797 10.476 1.00 35.34 ATOM 126 OG1 THR B 131 -33.836 133.787 11.510 1.00 31.73 ATOM 127 CG2 THR B 131 -34.758 133.139 9.374 1.00 34.53 ATOM 128 N SER B 132 -33.013 131.704 13.241 1.00 36.14 ATOM 129 CA SER B 132 -31.950 131.489 14.213 1.00 36.54 ATOM 130 C SER B 132 -32.358 131.433 15.682 1.00 35.05 ATOM 131 O SER B 132 -32.393 132.457 16.365 1.00 35.38 ATOM 132 CB SER B 132 -30.878 132.569 14.036 1.00 35.40 ATOM 133 OG SER B 132 -29.728 132.252 14.799 1.00 39.94 ATOM 134 N PRO B 133 -32.667 130.232 16.190 1.00 34.65 ATOM 135 CA PRO B 133 -33.055 130.136 17.598 1.00 34.05 ATOM 136 C PRO B 133 -31.893 130.563 18.485 1.00 33.81 ATOM 137 O PRO B 133 -32.092 131.013 19.612 1.00 35.38 ATOM 138 CB PRO B 133 -33.437 128.666 17.756 1.00 34.15 ATOM 139 CG PRO B 133 -32.647 127.984 16.692 1.00 35.02 ATOM 140 CD PRO B 133 -32.782 128.924 15.526 1.00 33.03 ATOM 141 N VAL B 134 -30.677 130.431 17.963 1.00 32.45 ATOM 142 CA VAL B 134 -29.496 130.857 18.701 1.00 29.64 ATOM 143 C VAL B 134 -29.560 132.379 18.888 1.00 27.76 ATOM 144 O VAL B 134 -29.277 132.894 19.970 1.00 25.77 ATOM 145 CB VAL B 134 -28.199 130.487 17.948 1.00 29.90 ATOM 146 CG1 VAL B 134 -27.015 131.223 18.555 1.00 27.01 ATOM 147 CG2 VAL B 134 -27.973 128.985 18.018 1.00 27.97 ATOM 148 N LEU B 135 -29.939 133.100 17.836 1.00 27.73 ATOM 149 CA LEU B 135 -30.043 134.554 17.940 1.00 27.32 ATOM 150 C LEU B 135 -31.163 134.918 18.935 1.00 25.65 ATOM 151 O LEU B 135 -31.023 135.848 19.717 1.00 24.80 ATOM 152 CB LEU B 135 -30.345 135.171 16.573 1.00 27.65 ATOM 153 CG LEU B 135 -29.749 136.537 16.204 1.00 30.63 ATOM 154 CD1 LEU B 135 -30.667 137.216 15.203 1.00 28.13 ATOM 155 CD2 LEU B 135 -29.588 137.422 17.424 1.00 32.47 ATOM 156 N ALA B 136 -32.269 134.179 18.910 1.00 25.31 ATOM 157 CA ALA B 136 -33.376 134.459 19.827 1.00 25.84 ATOM 158 C ALA B 136 -32.936 134.324 21.292 1.00 27.36 ATOM 159 O ALA B 136 -33.341 135.124 22.135 1.00 25.87 ATOM 160 CB ALA B 136 -34.558 133.518 19.544 1.00 24.87 ATOM 161 N ARG B 137 -32.119 133.311 21.593 1.00 28.31 ATOM 162 CA ARG B 137 -31.624 133.100 22.961 1.00 29.72 ATOM 163 C ARG B 137 -30.652 134.212 23.355 1.00 28.84 ATOM 164 O ARG B 137 -30.654 134.673 24.494 1.00 27.44 ATOM 165 CB ARG B 137 -30.942 131.723 23.103 1.00 28.43 ATOM 166 CG ARG B 137 -31.918 130.533 23.100 1.00 34.31 ATOM 167 CD ARG B 137 -31.272 129.208 23.562 1.00 35.05 ATOM 168 NE ARG B 137 -30.462 128.566 22.524 1.00 40.48 ATOM 169 CZ ARG B 137 -30.920 127.668 21.652 1.00 41.51 ATOM 170 NH1 ARG B 137 -32.190 127.281 21.678 1.00 41.67 ATOM 171 NH2 ARG B 137 -30.104 127.162 20.740 1.00 40.81 ATOM 172 N LEU B 138 -29.814 134.631 22.411 1.00 29.91 ATOM 173 CA LEU B 138 -28.863 135.710 22.662 1.00 30.44 ATOM 174 C LEU B 138 -29.630 136.972 23.071 1.00 30.59 ATOM 175 O LEU B 138 -29.231 137.694 24.000 1.00 29.33 ATOM 176 CB LEU B 138 -28.038 135.994 21.400 1.00 33.84 ATOM 177 CG LEU B 138 -26.792 135.122 21.174 1.00 40.24 ATOM 178 CD1 LEU B 138 -26.638 134.752 19.702 1.00 40.16 ATOM 179 CD2 LEU B 138 -25.563 135.884 21.673 1.00 42.76 ATOM 180 N LEU B 139 -30.731 137.243 22.377 1.00 27.98 ATOM 181 CA LEU B 139 -31.520 138.420 22.703 1.00 27.87 ATOM 182 C LEU B 139 -32.206 138.255 24.059 1.00 26.41 ATOM 183 O LEU B 139 -32.260 139.204 24.845 1.00 24.78 ATOM 184 CB LEU B 139 -32.546 138.715 21.600 1.00 28.34 ATOM 185 CG LEU B 139 -31.953 139.203 20.269 1.00 33.37 ATOM 186 CD1 LEU B 139 -33.061 139.661 19.340 1.00 33.18 ATOM 187 CD2 LEU B 139 -30.996 140.361 20.521 1.00 34.41 ATOM 188 N ARG B 140 -32.719 137.057 24.343 1.00 24.29 ATOM 189 CA ARG B 140 -33.370 136.819 25.630 1.00 21.82 ATOM 190 C ARG B 140 -32.382 137.117 26.772 1.00 21.81 ATOM 191 O ARG B 140 -32.719 137.801 27.748 1.00 20.55 ATOM 192 CB ARG B 140 -33.850 135.363 25.757 1.00 19.64 ATOM 193 CG ARG B 140 -34.600 135.119 27.076 1.00 16.36 ATOM 194 CD ARG B 140 -34.719 133.651 27.505 1.00 19.15 ATOM 195 NE ARG B 140 -35.135 133.587 28.914 1.00 21.64 ATOM 196 CZ ARG B 140 -35.135 132.494 29.673 1.00 22.42 ATOM 197 NH1 ARG B 140 -34.744 131.320 29.189 1.00 23.89 ATOM 198 NH2 ARG B 140 -35.523 132.581 30.938 1.00 24.81 ATOM 199 N GLU B 141 -31.168 136.589 26.635 1.00 20.90 ATOM 200 CA GLU B 141 -30.104 136.753 27.624 1.00 20.83 ATOM 201 C GLU B 141 -29.846 138.226 27.890 1.00 22.18 ATOM 202 O GLU B 141 -29.748 138.651 29.045 1.00 24.19 ATOM 203 CB GLU B 141 -28.823 136.084 27.115 1.00 23.41 ATOM 204 CG GLU B 141 -27.602 136.269 28.005 1.00 29.60 ATOM 205 CD GLU B 141 -26.297 136.002 27.263 1.00 32.90 ATOM 206 OE1 GLU B 141 -26.212 134.997 26.516 1.00 29.58 ATOM 207 OE2 GLU B 141 -25.354 136.801 27.438 1.00 37.53 ATOM 208 N LYS B 142 -29.718 139.000 26.820 1.00 21.28 ATOM 209 CA LYS B 142 -29.489 140.430 26.939 1.00 24.13 ATOM 210 C LYS B 142 -30.675 141.126 27.611 1.00 26.00 ATOM 211 O LYS B 142 -30.496 141.974 28.490 1.00 26.93 ATOM 212 CB LYS B 142 -29.249 141.048 25.555 1.00 25.69 ATOM 213 CG LYS B 142 -27.917 140.644 24.912 1.00 30.43 ATOM 214 CD LYS B 142 -26.751 141.095 25.792 1.00 34.37 ATOM 215 CE LYS B 142 -25.395 140.699 25.215 1.00 37.47 ATOM 216 NZ LYS B 142 -24.273 141.013 26.161 1.00 37.63 ATOM 217 N LEU B 143 -31.891 140.777 27.200 1.00 24.33 ATOM 218 CA LEU B 143 -33.067 141.409 27.775 1.00 22.91 ATOM 219 C LEU B 143 -33.284 141.011 29.235 1.00 21.92 ATOM 220 O LEU B 143 -33.756 141.815 30.034 1.00 21.23 ATOM 221 CB LEU B 143 -34.302 141.090 26.928 1.00 23.88 ATOM 222 CG LEU B 143 -34.209 141.543 25.460 1.00 28.85 ATOM 223 CD1 LEU B 143 -35.481 141.140 24.725 1.00 29.29 ATOM 224 CD2 LEU B 143 -34.003 143.053 25.363 1.00 27.96 ATOM 225 N GLU B 144 -32.926 139.784 29.598 1.00 22.85 ATOM 226 CA GLU B 144 -33.098 139.360 30.988 1.00 22.77 ATOM 227 C GLU B 144 -32.209 140.212 31.899 1.00 22.94 ATOM 228 O GLU B 144 -32.588 140.543 33.018 1.00 23.07 ATOM 229 CB GLU B 144 -32.727 137.880 31.173 1.00 22.62 ATOM 230 CG GLU B 144 -33.673 136.856 30.535 1.00 24.81 ATOM 231 CD GLU B 144 -34.981 136.644 31.301 1.00 27.71 ATOM 232 OE1 GLU B 144 -35.735 135.710 30.934 1.00 27.11 ATOM 233 OE2 GLU B 144 -35.264 137.394 32.263 1.00 28.85 ATOM 234 N SER B 145 -31.028 140.575 31.408 1.00 21.55 ATOM 235 CA SER B 145 -30.102 141.356 32.209 1.00 24.75 ATOM 236 C SER B 145 -30.504 142.822 32.318 1.00 26.23 ATOM 237 O SER B 145 -30.187 143.479 33.300 1.00 30.03 ATOM 238 CB SER B 145 -28.679 141.245 31.640 1.00 22.90 ATOM 239 OG SER B 145 -28.406 142.303 30.742 1.00 22.86 ATOM 240 N LEU B 146 -31.216 143.330 31.325 1.00 26.84 ATOM 241 CA LEU B 146 -31.621 144.728 31.348 1.00 29.38 ATOM 242 C LEU B 146 -32.892 145.022 32.137 1.00 27.35 ATOM 243 O LEU B 146 -33.088 146.146 32.605 1.00 26.38 ATOM 244 CB LEU B 146 -31.763 145.239 29.910 1.00 32.39 ATOM 245 CG LEU B 146 -30.422 145.179 29.165 1.00 36.55 ATOM 246 CD1 LEU B 146 -30.566 145.718 27.743 1.00 39.22 ATOM 247 CD2 LEU B 146 -29.390 145.988 29.940 1.00 38.01 ATOM 248 N LEU B 147 -33.749 144.016 32.284 1.00 24.17 ATOM 249 CA LEU B 147 -35.003 144.182 33.008 1.00 22.26 ATOM 250 C LEU B 147 -34.911 143.706 34.460 1.00 22.01 ATOM 251 O LEU B 147 -34.765 142.511 34.721 1.00 20.77 ATOM 252 CB LEU B 147 -36.125 143.431 32.272 1.00 22.10 ATOM 253 CG LEU B 147 -37.055 144.234 31.349 1.00 23.37 ATOM 254 CD1 LEU B 147 -36.318 145.373 30.673 1.00 20.43 ATOM 255 CD2 LEU B 147 -37.672 143.294 30.334 1.00 23.37 ATOM 256 C ACT B 503 -38.201 128.404 21.119 1.00 59.50 ATOM 257 O ACT B 503 -38.612 127.322 21.595 1.00 58.80 ATOM 258 OXT ACT B 503 -37.854 129.389 21.807 1.00 58.60 ATOM 259 CH3 ACT B 503 -38.117 128.529 19.595 1.00 57.91 TER