HEADER OXIDOREDUCTASE/ELECTRON TRANSPORT 31-DEC-69 4GD3 TITLE Structure of E. coli hydrogenase-1 in complex with cytochrome b COMPND MOL_ID: 1; COMPND 2 MOLECULE: Hydrogenase-1 small chain; COMPND 3 CHAIN: S, T, Q, R; COMPND 4 MUTATION: YES; COMPND 5 EC: 1.12.99.6; COMPND 6 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.30 ANGSTORMS DBREF 4GD3 S 1 327 UNP P69739 MBHS_ECOLI 46 372 SEQRES 1 S 35 MET GLY THR HIS SER THR ALA ASP THR VAL GLY LEU THR SEQRES 2 S 35 ALA LEU GLY VAL VAL ALA ALA ALA VAL GLY VAL HIS ALA SEQRES 3 S 35 VAL ALA SER ALA VAL ASP GLN ARG ARG ATOM 1 N MET S 273 -12.079 21.292 -50.494 1.00 89.31 ATOM 2 CA MET S 273 -12.720 20.971 -51.756 1.00 89.19 ATOM 3 C MET S 273 -13.733 19.925 -51.390 1.00 87.65 ATOM 4 O MET S 273 -13.365 18.853 -50.912 1.00 87.44 ATOM 5 CB MET S 273 -11.701 20.391 -52.736 1.00 89.79 ATOM 6 CG MET S 273 -12.269 19.906 -54.066 1.00 95.58 ATOM 7 SD MET S 273 -11.956 20.983 -55.498 1.00102.64 ATOM 8 CE MET S 273 -13.194 22.291 -55.287 1.00103.47 ATOM 9 N GLY S 274 -15.005 20.254 -51.582 1.00 86.96 ATOM 10 CA GLY S 274 -16.097 19.420 -51.091 1.00 84.81 ATOM 11 C GLY S 274 -16.439 18.297 -52.035 1.00 83.44 ATOM 12 O GLY S 274 -16.461 18.500 -53.241 1.00 83.57 ATOM 13 N THR S 275 -16.690 17.109 -51.486 1.00 82.22 ATOM 14 CA THR S 275 -17.002 15.949 -52.318 1.00 83.50 ATOM 15 C THR S 275 -18.351 16.187 -52.939 1.00 85.98 ATOM 16 O THR S 275 -18.474 16.268 -54.159 1.00 87.84 ATOM 17 CB THR S 275 -16.964 14.580 -51.560 1.00 82.73 ATOM 18 OG1 THR S 275 -17.901 14.547 -50.471 1.00 81.44 ATOM 19 CG2 THR S 275 -15.581 14.317 -51.027 1.00 85.01 ATOM 20 N HIS S 276 -19.352 16.351 -52.080 1.00 86.85 ATOM 21 CA HIS S 276 -20.731 16.573 -52.502 1.00 88.26 ATOM 22 C HIS S 276 -20.979 17.997 -53.022 1.00 87.64 ATOM 23 O HIS S 276 -21.637 18.178 -54.054 1.00 89.29 ATOM 24 CB HIS S 276 -21.674 16.225 -51.357 1.00 88.75 ATOM 25 CG HIS S 276 -21.788 14.757 -51.105 1.00 91.87 ATOM 26 ND1 HIS S 276 -20.689 13.937 -50.964 1.00 92.85 ATOM 27 CD2 HIS S 276 -22.874 13.962 -50.957 1.00 96.66 ATOM 28 CE1 HIS S 276 -21.094 12.698 -50.744 1.00 95.78 ATOM 29 NE2 HIS S 276 -22.416 12.685 -50.737 1.00 97.85 ATOM 30 N SER S 277 -20.434 18.994 -52.326 1.00 84.23 ATOM 31 CA SER S 277 -20.602 20.381 -52.730 1.00 83.45 ATOM 32 C SER S 277 -20.171 20.599 -54.181 1.00 83.39 ATOM 33 O SER S 277 -20.914 21.172 -54.964 1.00 85.52 ATOM 34 CB SER S 277 -19.877 21.331 -51.769 1.00 82.49 ATOM 35 OG SER S 277 -18.496 21.405 -52.044 1.00 81.80 ATOM 36 N THR S 278 -18.991 20.109 -54.548 1.00 81.53 ATOM 37 CA THR S 278 -18.482 20.280 -55.912 1.00 81.62 ATOM 38 C THR S 278 -19.316 19.509 -56.915 1.00 82.01 ATOM 39 O THR S 278 -19.739 20.062 -57.912 1.00 82.96 ATOM 40 CB THR S 278 -16.993 19.890 -56.018 1.00 81.14 ATOM 41 OG1 THR S 278 -16.225 20.706 -55.119 1.00 81.78 ATOM 42 CG2 THR S 278 -16.461 20.056 -57.443 1.00 82.49 ATOM 43 N ALA S 279 -19.568 18.238 -56.626 1.00 82.32 ATOM 44 CA ALA S 279 -20.441 17.411 -57.462 1.00 85.02 ATOM 45 C ALA S 279 -21.806 18.055 -57.657 1.00 86.90 ATOM 46 O ALA S 279 -22.322 18.078 -58.777 1.00 88.92 ATOM 47 CB ALA S 279 -20.589 16.009 -56.880 1.00 83.43 ATOM 48 N ASP S 280 -22.375 18.572 -56.566 1.00 86.42 ATOM 49 CA ASP S 280 -23.633 19.319 -56.618 1.00 89.35 ATOM 50 C ASP S 280 -23.557 20.442 -57.652 1.00 89.96 ATOM 51 O ASP S 280 -24.381 20.520 -58.569 1.00 92.22 ATOM 52 CB ASP S 280 -23.986 19.919 -55.248 1.00 89.84 ATOM 53 CG ASP S 280 -24.722 18.948 -54.339 1.00 91.86 ATOM 54 OD1 ASP S 280 -25.153 17.873 -54.811 1.00 93.78 ATOM 55 OD2 ASP S 280 -24.870 19.272 -53.141 1.00 93.99 ATOM 56 N THR S 281 -22.553 21.298 -57.506 1.00 87.34 ATOM 57 CA THR S 281 -22.378 22.412 -58.411 1.00 88.19 ATOM 58 C THR S 281 -22.218 21.917 -59.836 1.00 88.59 ATOM 59 O THR S 281 -22.732 22.546 -60.756 1.00 90.34 ATOM 60 CB THR S 281 -21.160 23.247 -58.044 1.00 87.30 ATOM 61 OG1 THR S 281 -21.002 23.260 -56.622 1.00 88.89 ATOM 62 CG2 THR S 281 -21.335 24.678 -58.547 1.00 91.38 ATOM 63 N VAL S 282 -21.516 20.791 -60.012 1.00 86.84 ATOM 64 CA VAL S 282 -21.303 20.207 -61.345 1.00 86.89 ATOM 65 C VAL S 282 -22.637 19.796 -61.955 1.00 90.28 ATOM 66 O VAL S 282 -22.885 20.047 -63.128 1.00 92.19 ATOM 67 CB VAL S 282 -20.328 19.005 -61.336 1.00 84.15 ATOM 68 CG1 VAL S 282 -20.260 18.381 -62.705 1.00 84.78 ATOM 69 CG2 VAL S 282 -18.930 19.431 -60.910 1.00 80.49 ATOM 70 N GLY S 283 -23.494 19.188 -61.140 1.00 91.52 ATOM 71 CA GLY S 283 -24.816 18.744 -61.577 1.00 95.77 ATOM 72 C GLY S 283 -25.757 19.883 -61.936 1.00 99.61 ATOM 73 O GLY S 283 -26.395 19.864 -62.999 1.00101.74 ATOM 74 N LEU S 284 -25.847 20.872 -61.044 1.00100.73 ATOM 75 CA LEU S 284 -26.697 22.060 -61.253 1.00104.05 ATOM 76 C LEU S 284 -26.142 22.917 -62.400 1.00105.22 ATOM 77 O LEU S 284 -26.897 23.591 -63.111 1.00108.08 ATOM 78 CB LEU S 284 -26.825 22.900 -59.960 1.00103.02 ATOM 79 CG LEU S 284 -27.714 22.522 -58.749 1.00104.85 ATOM 80 CD1 LEU S 284 -27.578 21.055 -58.223 1.00103.84 ATOM 81 CD2 LEU S 284 -27.483 23.512 -57.593 1.00104.68 ATOM 82 N THR S 285 -24.820 22.870 -62.582 1.00102.93 ATOM 83 CA THR S 285 -24.165 23.642 -63.627 1.00102.69 ATOM 84 C THR S 285 -24.395 23.008 -64.977 1.00103.81 ATOM 85 O THR S 285 -24.411 23.711 -65.978 1.00105.78 ATOM 86 CB THR S 285 -22.652 23.880 -63.342 1.00100.81 ATOM 87 OG1 THR S 285 -22.309 25.223 -63.696 1.00103.33 ATOM 88 CG2 THR S 285 -21.740 22.895 -64.085 1.00 99.32 ATOM 89 N ALA S 286 -24.588 21.686 -64.989 1.00103.33 ATOM 90 CA ALA S 286 -24.867 20.933 -66.221 1.00105.23 ATOM 91 C ALA S 286 -26.352 20.928 -66.529 1.00107.86 ATOM 92 O ALA S 286 -26.754 21.085 -67.684 1.00110.28 ATOM 93 CB ALA S 286 -24.352 19.512 -66.123 1.00103.43 ATOM 94 N LEU S 287 -27.161 20.739 -65.492 1.00107.65 ATOM 95 CA LEU S 287 -28.599 20.834 -65.637 1.00110.74 ATOM 96 C LEU S 287 -28.951 22.168 -66.251 1.00112.93 ATOM 97 O LEU S 287 -29.668 22.221 -67.244 1.00116.27 ATOM 98 CB LEU S 287 -29.296 20.669 -64.290 1.00110.04 ATOM 99 CG LEU S 287 -30.114 19.389 -64.118 1.00111.26 ATOM 100 CD1 LEU S 287 -30.605 19.281 -62.685 1.00109.02 ATOM 101 CD2 LEU S 287 -31.293 19.343 -65.105 1.00114.05 ATOM 102 N GLY S 288 -28.403 23.231 -65.665 1.00111.73 ATOM 103 CA GLY S 288 -28.586 24.602 -66.137 1.00113.75 ATOM 104 C GLY S 288 -28.286 24.818 -67.608 1.00115.94 ATOM 105 O GLY S 288 -28.989 25.576 -68.282 1.00119.20 ATOM 106 N VAL S 289 -27.242 24.154 -68.101 1.00114.66 ATOM 107 CA VAL S 289 -26.879 24.174 -69.520 1.00116.53 ATOM 108 C VAL S 289 -28.005 23.621 -70.404 1.00120.61 ATOM 109 O VAL S 289 -28.372 24.236 -71.408 1.00123.81 ATOM 110 CB VAL S 289 -25.513 23.463 -69.765 1.00114.13 ATOM 111 CG1 VAL S 289 -25.433 22.803 -71.144 1.00115.07 ATOM 112 CG2 VAL S 289 -24.374 24.455 -69.566 1.00112.34 ATOM 113 N VAL S 290 -28.569 22.483 -70.010 1.00121.11 ATOM 114 CA VAL S 290 -29.639 21.850 -70.776 1.00124.54 ATOM 115 C VAL S 290 -30.944 22.610 -70.578 1.00127.83 ATOM 116 O VAL S 290 -31.753 22.728 -71.506 1.00130.26 ATOM 117 CB VAL S 290 -29.822 20.362 -70.393 1.00123.13 ATOM 118 CG1 VAL S 290 -30.534 19.605 -71.508 1.00125.89 ATOM 119 CG2 VAL S 290 -28.481 19.715 -70.124 1.00119.63 ATOM 120 N ALA S 291 -31.121 23.133 -69.366 1.00128.61 ATOM 121 CA ALA S 291 -32.322 23.885 -68.980 1.00133.24 ATOM 122 C ALA S 291 -32.570 25.079 -69.892 1.00137.83 ATOM 123 O ALA S 291 -33.692 25.286 -70.344 1.00140.96 ATOM 124 CB ALA S 291 -32.239 24.339 -67.514 1.00130.47 ATOM 125 N ALA S 292 -31.512 25.846 -70.155 1.00138.92 ATOM 126 CA ALA S 292 -31.578 27.018 -71.025 1.00143.05 ATOM 127 C ALA S 292 -31.588 26.644 -72.507 1.00146.82 ATOM 128 O ALA S 292 -32.186 27.355 -73.322 1.00149.52 ATOM 129 CB ALA S 292 -30.425 27.965 -70.722 1.00141.09 ATOM 130 N ALA S 293 -30.932 25.530 -72.841 1.00147.62 ATOM 131 CA ALA S 293 -30.809 25.067 -74.227 1.00152.12 ATOM 132 C ALA S 293 -32.099 24.471 -74.800 1.00157.51 ATOM 133 O ALA S 293 -32.400 24.661 -75.986 1.00160.84 ATOM 134 CB ALA S 293 -29.658 24.086 -74.365 1.00149.24 ATOM 135 N VAL S 294 -32.851 23.745 -73.967 1.00159.16 ATOM 136 CA VAL S 294 -34.121 23.131 -74.405 1.00163.60 ATOM 137 C VAL S 294 -35.371 23.824 -73.822 1.00166.29 ATOM 138 O VAL S 294 -36.202 24.321 -74.585 1.00169.60 ATOM 139 CB VAL S 294 -34.162 21.596 -74.160 1.00162.27 ATOM 140 CG1 VAL S 294 -35.397 20.990 -74.805 1.00165.85 ATOM 141 CG2 VAL S 294 -32.917 20.927 -74.723 1.00160.76 ATOM 142 N GLY S 295 -35.500 23.845 -72.491 1.00165.06 ATOM 143 CA GLY S 295 -36.579 24.578 -71.807 1.00167.34 ATOM 144 C GLY S 295 -36.307 26.076 -71.802 1.00168.89 ATOM 145 O GLY S 295 -36.275 26.705 -72.864 1.00171.02 ATOM 146 N VAL S 296 -36.126 26.642 -70.602 1.00167.92 ATOM 147 CA VAL S 296 -35.591 28.018 -70.394 1.00167.88 ATOM 148 C VAL S 296 -35.472 28.379 -68.884 1.00166.32 ATOM 149 O VAL S 296 -35.476 29.557 -68.513 1.00166.37 ATOM 150 CB VAL S 296 -36.332 29.125 -71.263 1.00171.13 ATOM 151 CG1 VAL S 296 -37.613 29.637 -70.604 1.00172.33 ATOM 152 CG2 VAL S 296 -35.399 30.269 -71.591 1.00168.60 ATOM 153 N HIS S 297 -35.319 27.333 -68.055 1.00165.16 ATOM 154 CA HIS S 297 -35.346 27.341 -66.557 1.00163.95 ATOM 155 C HIS S 297 -36.649 26.705 -66.011 1.00165.41 ATOM 156 O HIS S 297 -37.557 26.376 -66.787 1.00167.83 ATOM 157 CB HIS S 297 -34.981 28.718 -65.915 1.00163.39 ATOM 158 CG HIS S 297 -36.158 29.587 -65.556 1.00167.39 ATOM 159 ND1 HIS S 297 -37.209 29.833 -66.418 1.00171.03 ATOM 160 CD2 HIS S 297 -36.422 30.303 -64.436 1.00166.39 ATOM 161 CE1 HIS S 297 -38.080 30.637 -65.835 1.00170.87 ATOM 162 NE2 HIS S 297 -37.626 30.939 -64.632 1.00169.01 ATOM 163 N ALA S 298 -36.733 26.503 -64.697 1.00163.65 ATOM 164 CA ALA S 298 -37.868 25.772 -64.127 1.00165.35 ATOM 165 C ALA S 298 -38.779 26.574 -63.178 1.00167.37 ATOM 166 O ALA S 298 -38.348 26.992 -62.096 1.00164.71 ATOM 167 CB ALA S 298 -37.381 24.490 -63.452 1.00162.11 ATOM 168 N VAL S 299 -40.030 26.783 -63.609 1.00172.19 ATOM 169 CA VAL S 299 -41.122 27.309 -62.761 1.00174.71 ATOM 170 C VAL S 299 -42.066 26.138 -62.394 1.00177.19 ATOM 171 O VAL S 299 -43.049 25.875 -63.102 1.00180.51 ATOM 172 CB VAL S 299 -41.920 28.486 -63.450 1.00177.99 ATOM 173 CG1 VAL S 299 -42.923 29.125 -62.485 1.00177.51 ATOM 174 CG2 VAL S 299 -40.979 29.556 -63.995 1.00176.22 ATOM 175 N ALA S 300 -41.748 25.443 -61.294 1.00175.47 ATOM 176 CA ALA S 300 -42.491 24.255 -60.823 1.00176.48 ATOM 177 C ALA S 300 -43.929 24.561 -60.326 1.00180.85 ATOM 178 O ALA S 300 -44.438 25.677 -60.504 1.00183.19 ATOM 179 CB ALA S 300 -41.672 23.517 -59.742 1.00171.26 ATOM 180 N SER S 301 -44.589 23.559 -59.736 1.00182.14 ATOM 181 CA SER S 301 -45.896 23.751 -59.067 1.00185.05 ATOM 182 C SER S 301 -46.014 22.933 -57.762 1.00183.47 ATOM 183 O SER S 301 -46.459 23.455 -56.734 1.00183.64 ATOM 184 CB SER S 301 -47.085 23.501 -60.019 1.00188.88 ATOM 185 OG SER S 301 -47.339 22.120 -60.207 1.00188.86 ATOM 186 N ALA S 302 -45.609 21.664 -57.807 1.00181.80 ATOM 187 CA ALA S 302 -45.503 20.845 -56.598 1.00180.21 ATOM 188 C ALA S 302 -44.152 21.071 -55.906 1.00176.46 ATOM 189 O ALA S 302 -44.085 21.181 -54.670 1.00175.12 ATOM 190 CB ALA S 302 -45.708 19.365 -56.925 1.00180.07 ATOM 191 N VAL S 303 -43.093 21.148 -56.722 1.00174.94 ATOM 192 CA VAL S 303 -41.694 21.311 -56.277 1.00171.06 ATOM 193 C VAL S 303 -41.060 20.053 -55.653 1.00168.73 ATOM 194 O VAL S 303 -39.834 19.931 -55.647 1.00166.06 ATOM 195 CB VAL S 303 -41.487 22.549 -55.356 1.00169.75 ATOM 196 N ASP S 304 -41.886 19.133 -55.137 1.00170.47 ATOM 197 CA ASP S 304 -41.428 17.824 -54.612 1.00168.30 ATOM 198 C ASP S 304 -42.259 16.637 -55.159 1.00170.99 ATOM 199 O ASP S 304 -41.697 15.680 -55.711 1.00169.84 ATOM 200 CB ASP S 304 -41.392 17.820 -53.072 1.00165.78 ATOM 201 N GLN S 305 -43.585 16.715 -54.987 1.00174.74 ATOM 202 CA GLN S 305 -44.592 15.772 -55.553 1.00177.88 ATOM 203 C GLN S 305 -44.615 14.310 -55.020 1.00177.54 ATOM 204 O GLN S 305 -45.698 13.725 -54.898 1.00180.52 ATOM 205 CB GLN S 305 -44.603 15.810 -57.103 1.00179.42 ATOM 206 CG GLN S 305 -45.951 15.477 -57.758 1.00181.50 ATOM 207 N ARG S 306 -43.447 13.740 -54.696 1.00173.87 ATOM 208 CA ARG S 306 -43.311 12.303 -54.354 1.00172.32 ATOM 209 C ARG S 306 -43.897 11.853 -52.990 1.00172.34 ATOM 210 O ARG S 306 -43.174 11.757 -51.990 1.00169.56 ATOM 211 CB ARG S 306 -41.844 11.865 -54.477 1.00167.64 ATOM 212 N ARG S 307 -45.203 11.571 -52.974 1.00175.15 ATOM 213 CA ARG S 307 -45.907 11.035 -51.799 1.00174.95 ATOM 214 C ARG S 307 -47.191 10.312 -52.219 1.00178.41 ATOM 215 O ARG S 307 -47.436 9.169 -51.830 1.00178.19 ATOM 216 CB ARG S 307 -46.228 12.143 -50.790 1.00174.49 TER