HEADER OXIDOREDUCTASE 24-FEB-07 2JI3 TITLE X-RAY STRUCTURE OF THE IRON-PEROXIDE INTERMEDIATE OF SUPEROXIDE TITLE 2 REDUCTASE (E114A MUTANT) FROM DESULFOARCULUS BAARSII COMPND MOL_ID: 1; COMPND 2 MOLECULE: DESULFOFERRODOXIN; COMPND 3 CHAIN: A, B, C, D; COMPND 4 MUTATION: YES; COMPND 5 EC: 1.15.1.2; COMPND 6 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 1.95 ANGSTORMS DBREF 2JI3 A 1 1 PDB 2JI3 2JI3 1 1 DBREF 2JI3 A 2 126 UNP Q46495 DFX_DESBR 1 125 SEQRES 1 A 36 PRO GLU ARG LEU GLN VAL TYR LYS CYS GLU VAL CYS GLY SEQRES 2 A 36 ASN ILE VAL GLU VAL LEU ASN GLY GLY ILE GLY GLU LEU SEQRES 3 A 36 VAL CYS CYS ASN GLN ASP MET LYS LEU MET ATOM 1 N PRO A 2 28.173 23.157 33.992 1.00 32.91 ATOM 2 CA PRO A 2 26.931 23.406 34.735 1.00 29.46 ATOM 3 C PRO A 2 26.644 22.451 35.892 1.00 26.30 ATOM 4 O PRO A 2 26.906 21.252 35.818 1.00 26.03 ATOM 5 CB PRO A 2 25.857 23.319 33.651 1.00 29.59 ATOM 6 CG PRO A 2 26.599 23.661 32.388 1.00 30.37 ATOM 7 CD PRO A 2 27.885 22.917 32.567 1.00 31.39 ATOM 8 N GLU A 3 26.089 23.001 36.960 1.00 23.93 ATOM 9 CA GLU A 3 25.735 22.209 38.123 1.00 24.11 ATOM 10 C GLU A 3 24.293 22.532 38.459 1.00 21.18 ATOM 11 O GLU A 3 23.839 23.649 38.233 1.00 19.21 ATOM 12 CB GLU A 3 26.642 22.557 39.304 1.00 27.52 ATOM 13 CG GLU A 3 28.124 22.387 39.001 1.00 33.13 ATOM 14 CD GLU A 3 28.999 22.530 40.233 1.00 39.56 ATOM 15 OE1 GLU A 3 28.808 23.502 40.995 1.00 41.56 ATOM 16 OE2 GLU A 3 29.888 21.673 40.436 1.00 45.20 ATOM 17 N ARG A 4 23.574 21.550 38.989 1.00 22.09 ATOM 18 CA ARG A 4 22.177 21.741 39.350 1.00 21.50 ATOM 19 C ARG A 4 21.990 23.020 40.162 1.00 21.02 ATOM 20 O ARG A 4 22.808 23.349 41.030 1.00 20.53 ATOM 21 CB ARG A 4 21.667 20.526 40.141 1.00 24.12 ATOM 22 CG ARG A 4 20.219 20.646 40.648 1.00 24.67 ATOM 23 CD ARG A 4 19.740 19.328 41.235 1.00 25.50 ATOM 24 NE ARG A 4 19.757 18.271 40.227 1.00 28.46 ATOM 25 CZ ARG A 4 19.457 16.997 40.462 1.00 32.69 ATOM 26 NH1 ARG A 4 19.110 16.610 41.682 1.00 34.93 ATOM 27 NH2 ARG A 4 19.507 16.108 39.474 1.00 34.01 ATOM 28 N LEU A 5 20.920 23.740 39.839 1.00 21.39 ATOM 29 CA LEU A 5 20.528 24.988 40.495 1.00 21.96 ATOM 30 C LEU A 5 21.174 26.269 39.954 1.00 19.72 ATOM 31 O LEU A 5 20.705 27.374 40.251 1.00 17.65 ATOM 32 CB LEU A 5 20.746 24.888 42.012 1.00 25.82 ATOM 33 CG LEU A 5 20.050 23.726 42.737 1.00 27.71 ATOM 34 CD1 LEU A 5 20.180 23.901 44.254 1.00 29.04 ATOM 35 CD2 LEU A 5 18.589 23.682 42.344 1.00 29.42 ATOM 36 N GLN A 6 22.237 26.143 39.168 1.00 18.45 ATOM 37 CA GLN A 6 22.866 27.331 38.605 1.00 19.64 ATOM 38 C GLN A 6 21.921 27.976 37.594 1.00 20.23 ATOM 39 O GLN A 6 21.098 27.296 36.971 1.00 19.79 ATOM 40 CB GLN A 6 24.185 26.988 37.905 1.00 22.58 ATOM 41 CG GLN A 6 25.308 26.568 38.846 1.00 24.03 ATOM 42 CD GLN A 6 26.640 26.449 38.137 1.00 26.12 ATOM 43 OE1 GLN A 6 26.739 25.841 37.073 1.00 25.20 ATOM 44 NE2 GLN A 6 27.675 27.034 38.725 1.00 27.72 ATOM 45 N VAL A 7 22.030 29.292 37.455 1.00 19.41 ATOM 46 CA VAL A 7 21.214 30.038 36.510 1.00 19.26 ATOM 47 C VAL A 7 22.115 30.681 35.459 1.00 20.94 ATOM 48 O VAL A 7 23.084 31.364 35.809 1.00 21.48 ATOM 49 CB VAL A 7 20.416 31.132 37.230 1.00 19.80 ATOM 50 CG1 VAL A 7 19.725 32.024 36.218 1.00 19.43 ATOM 51 CG2 VAL A 7 19.394 30.487 38.173 1.00 20.25 ATOM 52 N TYR A 8 21.805 30.458 34.181 1.00 19.19 ATOM 53 CA TYR A 8 22.596 31.026 33.082 1.00 18.94 ATOM 54 C TYR A 8 21.763 31.919 32.174 1.00 19.86 ATOM 55 O TYR A 8 20.595 31.629 31.898 1.00 17.44 ATOM 56 CB TYR A 8 23.220 29.929 32.215 1.00 18.99 ATOM 57 CG TYR A 8 24.338 29.162 32.878 1.00 19.82 ATOM 58 CD1 TYR A 8 24.067 28.136 33.783 1.00 18.02 ATOM 59 CD2 TYR A 8 25.677 29.479 32.613 1.00 18.78 ATOM 60 CE1 TYR A 8 25.106 27.436 34.414 1.00 20.63 ATOM 61 CE2 TYR A 8 26.717 28.793 33.237 1.00 21.31 ATOM 62 CZ TYR A 8 26.425 27.773 34.136 1.00 21.72 ATOM 63 OH TYR A 8 27.450 27.093 34.755 1.00 23.31 ATOM 64 N LYS A 9 22.389 32.985 31.681 1.00 18.53 ATOM 65 CA LYS A 9 21.719 33.934 30.809 1.00 17.44 ATOM 66 C LYS A 9 22.493 34.228 29.535 1.00 18.77 ATOM 67 O LYS A 9 23.730 34.327 29.550 1.00 17.05 ATOM 68 CB LYS A 9 21.503 35.265 31.539 1.00 19.73 ATOM 69 CG LYS A 9 20.928 36.366 30.647 1.00 20.94 ATOM 70 CD LYS A 9 20.866 37.715 31.350 1.00 23.33 ATOM 71 CE LYS A 9 20.271 38.782 30.425 1.00 24.85 ATOM 72 NZ LYS A 9 20.124 40.115 31.084 1.00 25.67 ATOM 73 N CYS A 10 21.753 34.363 28.438 1.00 17.84 ATOM 74 CA CYS A 10 22.335 34.741 27.162 1.00 19.40 ATOM 75 C CYS A 10 22.164 36.255 27.156 1.00 19.75 ATOM 76 O CYS A 10 21.041 36.751 27.166 1.00 21.44 ATOM 77 CB CYS A 10 21.558 34.158 25.986 1.00 19.67 ATOM 78 SG CYS A 10 22.171 34.787 24.400 1.00 23.25 ATOM 79 N GLU A 11 23.267 36.990 27.155 1.00 22.48 ATOM 80 CA GLU A 11 23.187 38.443 27.178 1.00 26.19 ATOM 81 C GLU A 11 22.750 39.026 25.838 1.00 25.33 ATOM 82 O GLU A 11 22.470 40.219 25.744 1.00 26.15 ATOM 83 CB GLU A 11 24.530 39.036 27.609 1.00 29.11 ATOM 84 CG GLU A 11 24.909 38.673 29.042 1.00 35.80 ATOM 85 CD GLU A 11 26.248 39.249 29.468 1.00 38.98 ATOM 86 OE1 GLU A 11 27.281 38.867 28.878 1.00 40.97 ATOM 87 OE2 GLU A 11 26.267 40.087 30.396 1.00 44.15 ATOM 88 N VAL A 12 22.691 38.186 24.810 1.00 24.42 ATOM 89 CA VAL A 12 22.261 38.641 23.492 1.00 24.84 ATOM 90 C VAL A 12 20.740 38.604 23.355 1.00 23.33 ATOM 91 O VAL A 12 20.106 39.654 23.247 1.00 25.06 ATOM 92 CB VAL A 12 22.892 37.799 22.350 1.00 24.88 ATOM 93 CG1 VAL A 12 22.279 38.188 21.015 1.00 26.21 ATOM 94 CG2 VAL A 12 24.396 38.044 22.292 1.00 26.28 ATOM 95 N CYS A 13 20.149 37.413 23.377 1.00 24.84 ATOM 96 CA CYS A 13 18.692 37.286 23.226 1.00 22.36 ATOM 97 C CYS A 13 17.896 37.281 24.533 1.00 22.28 ATOM 98 O CYS A 13 16.667 37.339 24.515 1.00 21.42 ATOM 99 CB CYS A 13 18.347 36.026 22.437 1.00 24.41 ATOM 100 SG CYS A 13 18.666 34.477 23.331 1.00 24.62 ATOM 101 N GLY A 14 18.579 37.175 25.666 1.00 19.83 ATOM 102 CA GLY A 14 17.865 37.209 26.929 1.00 21.79 ATOM 103 C GLY A 14 17.354 35.897 27.495 1.00 21.38 ATOM 104 O GLY A 14 16.629 35.904 28.494 1.00 20.25 ATOM 105 N ASN A 15 17.691 34.777 26.864 1.00 21.17 ATOM 106 CA ASN A 15 17.272 33.481 27.389 1.00 21.45 ATOM 107 C ASN A 15 17.885 33.311 28.774 1.00 20.91 ATOM 108 O ASN A 15 19.039 33.675 28.994 1.00 19.54 ATOM 109 CB ASN A 15 17.800 32.316 26.533 1.00 24.40 ATOM 110 CG ASN A 15 16.922 32.000 25.331 1.00 25.29 ATOM 111 OD1 ASN A 15 15.711 32.230 25.340 1.00 25.84 ATOM 112 ND2 ASN A 15 17.536 31.435 24.296 1.00 24.62 ATOM 113 N ILE A 16 17.112 32.769 29.706 1.00 19.92 ATOM 114 CA ILE A 16 17.617 32.487 31.041 1.00 17.52 ATOM 115 C ILE A 16 17.144 31.082 31.368 1.00 17.85 ATOM 116 O ILE A 16 15.956 30.770 31.235 1.00 16.98 ATOM 117 CB ILE A 16 17.075 33.454 32.118 1.00 17.72 ATOM 118 CG1 ILE A 16 17.559 34.880 31.839 1.00 19.33 ATOM 119 CG2 ILE A 16 17.570 33.002 33.499 1.00 18.03 ATOM 120 CD1 ILE A 16 17.097 35.916 32.872 1.00 18.53 ATOM 121 N VAL A 17 18.070 30.229 31.780 1.00 17.97 ATOM 122 CA VAL A 17 17.726 28.851 32.110 1.00 18.58 ATOM 123 C VAL A 17 18.322 28.468 33.461 1.00 19.12 ATOM 124 O VAL A 17 19.278 29.091 33.920 1.00 18.18 ATOM 125 CB VAL A 17 18.270 27.872 31.038 1.00 19.33 ATOM 126 CG1 VAL A 17 17.729 28.242 29.662 1.00 16.43 ATOM 127 CG2 VAL A 17 19.801 27.904 31.031 1.00 18.26 ATOM 128 N GLU A 18 17.737 27.465 34.110 1.00 18.60 ATOM 129 CA GLU A 18 18.265 26.996 35.381 1.00 19.44 ATOM 130 C GLU A 18 18.652 25.547 35.143 1.00 16.73 ATOM 131 O GLU A 18 17.957 24.831 34.421 1.00 16.08 ATOM 132 CB GLU A 18 17.226 27.102 36.510 1.00 21.72 ATOM 133 CG GLU A 18 17.870 26.958 37.897 1.00 27.65 ATOM 134 CD GLU A 18 16.934 27.282 39.059 1.00 33.37 ATOM 135 OE1 GLU A 18 16.261 28.333 39.017 1.00 36.38 ATOM 136 OE2 GLU A 18 16.890 26.493 40.029 1.00 33.64 ATOM 137 N VAL A 19 19.762 25.113 35.732 1.00 16.28 ATOM 138 CA VAL A 19 20.223 23.742 35.532 1.00 17.37 ATOM 139 C VAL A 19 19.494 22.714 36.394 1.00 20.84 ATOM 140 O VAL A 19 19.388 22.865 37.614 1.00 20.66 ATOM 141 CB VAL A 19 21.734 23.614 35.800 1.00 18.01 ATOM 142 CG1 VAL A 19 22.189 22.198 35.507 1.00 16.90 ATOM 143 CG2 VAL A 19 22.507 24.612 34.934 1.00 18.60 ATOM 144 N LEU A 20 18.984 21.675 35.736 1.00 20.02 ATOM 145 CA LEU A 20 18.282 20.591 36.409 1.00 21.16 ATOM 146 C LEU A 20 19.242 19.416 36.552 1.00 20.55 ATOM 147 O LEU A 20 19.257 18.735 37.577 1.00 20.65 ATOM 148 CB LEU A 20 17.048 20.167 35.600 1.00 19.79 ATOM 149 CG LEU A 20 15.965 21.244 35.438 1.00 22.57 ATOM 150 CD1 LEU A 20 14.852 20.729 34.536 1.00 23.27 ATOM 151 CD2 LEU A 20 15.418 21.635 36.808 1.00 21.64 ATOM 152 N ASN A 21 20.045 19.191 35.516 1.00 22.00 ATOM 153 CA ASN A 21 21.028 18.109 35.514 1.00 24.56 ATOM 154 C ASN A 21 22.336 18.676 34.969 1.00 25.39 ATOM 155 O ASN A 21 22.361 19.228 33.872 1.00 23.17 ATOM 156 CB ASN A 21 20.544 16.967 34.617 1.00 24.00 ATOM 157 CG ASN A 21 21.299 15.673 34.851 1.00 27.28 ATOM 158 OD1 ASN A 21 21.122 15.008 35.874 1.00 24.92 ATOM 159 ND2 ASN A 21 22.145 15.305 33.899 1.00 28.22 ATOM 160 N GLY A 22 23.416 18.541 35.735 1.00 25.80 ATOM 161 CA GLY A 22 24.701 19.064 35.298 1.00 26.64 ATOM 162 C GLY A 22 25.418 18.201 34.270 1.00 28.27 ATOM 163 O GLY A 22 24.913 17.154 33.865 1.00 28.10 ATOM 164 N GLY A 23 26.603 18.642 33.855 1.00 28.63 ATOM 165 CA GLY A 23 27.373 17.909 32.862 1.00 28.86 ATOM 166 C GLY A 23 28.643 18.645 32.473 1.00 28.76 ATOM 167 O GLY A 23 28.943 19.705 33.028 1.00 27.17 ATOM 168 N ILE A 24 29.372 18.098 31.501 1.00 28.58 ATOM 169 CA ILE A 24 30.636 18.674 31.041 1.00 29.51 ATOM 170 C ILE A 24 30.559 19.818 30.032 1.00 29.23 ATOM 171 O ILE A 24 31.282 20.810 30.167 1.00 30.14 ATOM 172 CB ILE A 24 31.550 17.581 30.425 1.00 32.02 ATOM 173 CG1 ILE A 24 31.930 16.554 31.489 1.00 33.78 ATOM 174 CG2 ILE A 24 32.813 18.216 29.846 1.00 32.97 ATOM 175 CD1 ILE A 24 32.720 15.387 30.937 1.00 35.34 ATOM 176 N GLY A 25 29.713 19.677 29.013 1.00 26.79 ATOM 177 CA GLY A 25 29.603 20.713 27.999 1.00 23.66 ATOM 178 C GLY A 25 29.172 22.078 28.505 1.00 24.59 ATOM 179 O GLY A 25 28.394 22.181 29.456 1.00 23.37 ATOM 180 N GLU A 26 29.677 23.137 27.877 1.00 23.79 ATOM 181 CA GLU A 26 29.297 24.486 28.284 1.00 26.65 ATOM 182 C GLU A 26 28.058 24.951 27.535 1.00 24.50 ATOM 183 O GLU A 26 27.890 24.676 26.346 1.00 23.86 ATOM 184 CB GLU A 26 30.432 25.491 28.048 1.00 31.65 ATOM 185 CG GLU A 26 31.659 25.299 28.948 1.00 38.50 ATOM 186 CD GLU A 26 31.313 25.128 30.426 1.00 43.02 ATOM 187 OE1 GLU A 26 30.636 26.005 31.011 1.00 43.73 ATOM 188 OE2 GLU A 26 31.732 24.104 31.005 1.00 45.20 ATOM 189 N LEU A 27 27.192 25.661 28.248 1.00 23.65 ATOM 190 CA LEU A 27 25.954 26.170 27.671 1.00 23.74 ATOM 191 C LEU A 27 26.262 27.367 26.785 1.00 23.37 ATOM 192 O LEU A 27 26.968 28.286 27.191 1.00 24.55 ATOM 193 CB LEU A 27 24.983 26.570 28.789 1.00 20.35 ATOM 194 CG LEU A 27 24.547 25.444 29.727 1.00 22.28 ATOM 195 CD1 LEU A 27 23.764 26.016 30.897 1.00 21.87 ATOM 196 CD2 LEU A 27 23.705 24.424 28.962 1.00 23.72 ATOM 197 N VAL A 28 25.730 27.346 25.569 1.00 24.51 ATOM 198 CA VAL A 28 25.953 28.417 24.615 1.00 24.12 ATOM 199 C VAL A 28 24.642 28.894 23.999 1.00 24.08 ATOM 200 O VAL A 28 23.672 28.145 23.916 1.00 23.05 ATOM 201 CB VAL A 28 26.910 27.945 23.486 1.00 26.80 ATOM 202 CG1 VAL A 28 27.042 29.014 22.404 1.00 26.02 ATOM 203 CG2 VAL A 28 28.276 27.631 24.077 1.00 26.23 ATOM 204 N CYS A 29 24.616 30.157 23.591 1.00 22.87 ATOM 205 CA CYS A 29 23.439 30.727 22.958 1.00 23.40 ATOM 206 C CYS A 29 23.877 31.960 22.178 1.00 24.23 ATOM 207 O CYS A 29 24.758 32.710 22.610 1.00 22.23 ATOM 208 CB CYS A 29 22.387 31.096 24.009 1.00 20.13 ATOM 209 SG CYS A 29 20.783 31.600 23.335 1.00 22.73 ATOM 210 N CYS A 30 23.266 32.155 21.019 1.00 26.33 ATOM 211 CA CYS A 30 23.600 33.285 20.162 1.00 29.45 ATOM 212 C CYS A 30 25.108 33.402 19.928 1.00 28.53 ATOM 213 O CYS A 30 25.670 34.497 19.958 1.00 28.81 ATOM 214 CB CYS A 30 23.051 34.577 20.766 1.00 28.57 ATOM 215 SG CYS A 30 21.259 34.619 20.835 1.00 28.24 ATOM 216 N ASN A 31 25.753 32.258 19.715 1.00 29.92 ATOM 217 CA ASN A 31 27.189 32.195 19.437 1.00 32.74 ATOM 218 C ASN A 31 28.146 32.607 20.548 1.00 32.60 ATOM 219 O ASN A 31 29.324 32.863 20.284 1.00 33.54 ATOM 220 CB ASN A 31 27.506 33.005 18.179 1.00 36.15 ATOM 221 CG ASN A 31 26.874 32.411 16.939 1.00 39.60 ATOM 222 OD1 ASN A 31 26.397 33.135 16.068 1.00 45.74 ATOM 223 ND2 ASN A 31 26.871 31.085 16.851 1.00 40.04 ATOM 224 N GLN A 32 27.660 32.679 21.782 1.00 29.64 ATOM 225 CA GLN A 32 28.537 33.027 22.894 1.00 28.49 ATOM 226 C GLN A 32 28.177 32.243 24.155 1.00 27.73 ATOM 227 O GLN A 32 27.051 31.761 24.301 1.00 26.60 ATOM 228 CB GLN A 32 28.513 34.539 23.160 1.00 29.54 ATOM 229 CG GLN A 32 27.216 35.116 23.691 1.00 30.39 ATOM 230 CD GLN A 32 27.280 36.635 23.807 1.00 34.50 ATOM 231 OE1 GLN A 32 26.679 37.236 24.706 1.00 31.96 ATOM 232 NE2 GLN A 32 28.005 37.264 22.887 1.00 30.64 ATOM 233 N ASP A 33 29.151 32.091 25.047 1.00 25.70 ATOM 234 CA ASP A 33 28.940 31.364 26.290 1.00 25.23 ATOM 235 C ASP A 33 27.841 32.028 27.110 1.00 22.06 ATOM 236 O ASP A 33 27.813 33.248 27.251 1.00 22.97 ATOM 237 CB ASP A 33 30.235 31.331 27.119 1.00 29.03 ATOM 238 CG ASP A 33 31.202 30.235 26.672 1.00 34.68 ATOM 239 OD1 ASP A 33 31.443 30.120 25.451 1.00 30.33 ATOM 240 OD2 ASP A 33 31.723 29.491 27.548 1.00 36.63 ATOM 241 N MET A 34 26.922 31.235 27.641 1.00 20.34 ATOM 242 CA MET A 34 25.886 31.813 28.476 1.00 21.78 ATOM 243 C MET A 34 26.583 32.209 29.773 1.00 20.38 ATOM 244 O MET A 34 27.484 31.513 30.245 1.00 19.16 ATOM 245 CB MET A 34 24.772 30.806 28.751 1.00 20.50 ATOM 246 CG MET A 34 23.970 30.422 27.522 1.00 21.09 ATOM 247 SD MET A 34 22.556 29.355 27.915 1.00 23.55 ATOM 248 CE MET A 34 21.361 30.580 28.424 1.00 20.62 ATOM 249 N LYS A 35 26.166 33.335 30.334 1.00 20.94 ATOM 250 CA LYS A 35 26.746 33.865 31.560 1.00 22.54 ATOM 251 C LYS A 35 26.139 33.288 32.838 1.00 23.19 ATOM 252 O LYS A 35 24.918 33.308 33.029 1.00 22.70 ATOM 253 CB LYS A 35 26.594 35.394 31.571 1.00 24.86 ATOM 254 CG LYS A 35 27.110 36.075 32.830 1.00 30.62 ATOM 255 CD LYS A 35 26.794 37.565 32.815 1.00 33.42 ATOM 256 CE LYS A 35 27.223 38.221 34.114 1.00 39.08 ATOM 257 NZ LYS A 35 26.814 39.654 34.188 1.00 41.52 ATOM 258 N LEU A 36 27.001 32.777 33.713 1.00 21.71 ATOM 259 CA LEU A 36 26.563 32.231 34.989 1.00 21.64 ATOM 260 C LEU A 36 26.151 33.424 35.851 1.00 21.82 ATOM 261 O LEU A 36 26.953 34.332 36.092 1.00 21.20 ATOM 262 CB LEU A 36 27.715 31.463 35.656 1.00 21.89 ATOM 263 CG LEU A 36 27.552 30.995 37.109 1.00 21.82 ATOM 264 CD1 LEU A 36 26.382 30.008 37.214 1.00 21.09 ATOM 265 CD2 LEU A 36 28.850 30.325 37.576 1.00 23.05 ATOM 266 N MET A 37 24.905 33.441 36.309 1.00 19.19 ATOM 267 CA MET A 37 24.444 34.559 37.122 1.00 19.60 ATOM 268 C MET A 37 24.682 34.265 38.594 1.00 22.45 ATOM 269 O MET A 37 23.805 33.759 39.299 1.00 21.74 ATOM 270 CB MET A 37 22.965 34.837 36.852 1.00 20.94 ATOM 271 CG MET A 37 22.662 35.095 35.377 1.00 21.30 ATOM 272 SD MET A 37 23.667 36.425 34.630 1.00 27.70 ATOM 273 CE MET A 37 22.786 37.876 35.199 1.00 26.69 TER