HEADER OXIDOREDUCTASE 31-DEC-69 6G94 TITLE Structure of E. coli hydrogenase-1 C19G variant in complex with TITLE 2 cytochrome b COMPND MOL_ID: 1; COMPND 2 MOLECULE: Hydrogenase-1 small chain; COMPND 3 CHAIN: S, T, Q, R; COMPND 4 EC: 1.12.99.6; COMPND 5 ENGINEERED: YES; COMPND 6 C19G variant; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.50 ANGSTORMS DBREF 6G94 S 1 327 UNP P69740 MBHS_ECOL6 46 372 SEQRES 1 S 28 PRO GLN MET GLY THR HIS SER THR ALA ASP THR VAL GLY SEQRES 2 S 28 LEU THR ALA LEU GLY VAL VAL ALA ALA ALA VAL GLY VAL SEQRES 3 S 28 HIS ALA ATOM 1 N PRO S 271 -6.994 23.049 -46.049 1.00 46.27 ATOM 2 CA PRO S 271 -7.691 22.498 -47.213 1.00 44.69 ATOM 3 C PRO S 271 -9.107 22.132 -46.835 1.00 43.76 ATOM 4 O PRO S 271 -9.309 21.517 -45.806 1.00 43.91 ATOM 5 CB PRO S 271 -6.881 21.246 -47.565 1.00 43.87 ATOM 6 CG PRO S 271 -5.959 21.015 -46.423 1.00 43.69 ATOM 7 CD PRO S 271 -5.751 22.326 -45.740 1.00 44.00 ATOM 8 N GLN S 272 -10.080 22.532 -47.638 1.00 44.73 ATOM 9 CA GLN S 272 -11.471 22.253 -47.314 1.00 45.65 ATOM 10 C GLN S 272 -12.316 22.212 -48.581 1.00 48.17 ATOM 11 O GLN S 272 -12.662 23.259 -49.124 1.00 51.49 ATOM 12 CB GLN S 272 -12.011 23.324 -46.355 1.00 44.02 ATOM 13 CG GLN S 272 -13.396 23.048 -45.778 1.00 43.55 ATOM 14 CD GLN S 272 -14.551 23.482 -46.674 1.00 45.30 ATOM 15 OE1 GLN S 272 -14.742 24.674 -46.956 1.00 47.77 ATOM 16 NE2 GLN S 272 -15.333 22.510 -47.124 1.00 44.72 ATOM 17 N MET S 273 -12.644 21.006 -49.041 1.00 49.37 ATOM 18 CA MET S 273 -13.560 20.818 -50.170 1.00 49.01 ATOM 19 C MET S 273 -14.555 19.732 -49.821 1.00 44.83 ATOM 20 O MET S 273 -14.191 18.569 -49.716 1.00 42.55 ATOM 21 CB MET S 273 -12.804 20.478 -51.458 1.00 53.77 ATOM 22 CG MET S 273 -13.562 20.852 -52.737 1.00 56.27 ATOM 23 SD MET S 273 -12.708 20.181 -54.169 1.00 66.33 ATOM 24 CE MET S 273 -11.532 21.502 -54.483 1.00 54.16 ATOM 25 N GLY S 274 -15.805 20.127 -49.611 1.00 44.88 ATOM 26 CA GLY S 274 -16.813 19.195 -49.123 1.00 45.04 ATOM 27 C GLY S 274 -17.247 18.258 -50.225 1.00 46.80 ATOM 28 O GLY S 274 -17.269 18.643 -51.394 1.00 48.83 ATOM 29 N THR S 275 -17.595 17.030 -49.861 1.00 43.59 ATOM 30 CA THR S 275 -17.923 16.024 -50.849 1.00 41.72 ATOM 31 C THR S 275 -19.327 16.285 -51.323 1.00 43.36 ATOM 32 O THR S 275 -19.567 16.373 -52.522 1.00 44.81 ATOM 33 CB THR S 275 -17.825 14.588 -50.298 1.00 40.47 ATOM 34 OG1 THR S 275 -18.728 14.429 -49.193 1.00 40.21 ATOM 35 CG2 THR S 275 -16.395 14.258 -49.886 1.00 38.88 ATOM 36 N HIS S 276 -20.251 16.414 -50.376 1.00 44.90 ATOM 37 CA HIS S 276 -21.658 16.592 -50.710 1.00 47.04 ATOM 38 C HIS S 276 -21.981 18.021 -51.107 1.00 51.21 ATOM 39 O HIS S 276 -22.957 18.282 -51.819 1.00 53.50 ATOM 40 CB HIS S 276 -22.541 16.112 -49.562 1.00 43.82 ATOM 41 CG HIS S 276 -22.584 14.623 -49.452 1.00 42.03 ATOM 42 ND1 HIS S 276 -21.446 13.861 -49.289 1.00 40.43 ATOM 43 CD2 HIS S 276 -23.618 13.750 -49.507 1.00 42.33 ATOM 44 CE1 HIS S 276 -21.777 12.583 -49.240 1.00 41.29 ATOM 45 NE2 HIS S 276 -23.089 12.486 -49.377 1.00 42.44 ATOM 46 N SER S 277 -21.129 18.944 -50.673 1.00 51.42 ATOM 47 CA SER S 277 -21.318 20.338 -51.007 1.00 49.55 ATOM 48 C SER S 277 -20.874 20.531 -52.446 1.00 48.82 ATOM 49 O SER S 277 -21.534 21.226 -53.184 1.00 51.31 ATOM 50 CB SER S 277 -20.571 21.256 -50.029 1.00 47.10 ATOM 51 OG SER S 277 -19.169 21.046 -50.047 1.00 44.93 ATOM 52 N THR S 278 -19.796 19.859 -52.845 1.00 46.64 ATOM 53 CA THR S 278 -19.267 19.982 -54.200 1.00 47.17 ATOM 54 C THR S 278 -20.143 19.228 -55.178 1.00 48.66 ATOM 55 O THR S 278 -20.448 19.734 -56.249 1.00 50.68 ATOM 56 CB THR S 278 -17.821 19.467 -54.302 1.00 45.70 ATOM 57 OG1 THR S 278 -16.980 20.253 -53.452 1.00 49.11 ATOM 58 CG2 THR S 278 -17.299 19.569 -55.696 1.00 44.72 ATOM 59 N ALA S 279 -20.578 18.035 -54.792 1.00 47.85 ATOM 60 CA ALA S 279 -21.368 17.218 -55.686 1.00 49.06 ATOM 61 C ALA S 279 -22.771 17.752 -55.835 1.00 53.01 ATOM 62 O ALA S 279 -23.400 17.522 -56.856 1.00 57.18 ATOM 63 CB ALA S 279 -21.410 15.791 -55.215 1.00 48.86 ATOM 64 N ASP S 280 -23.265 18.476 -54.836 1.00 55.32 ATOM 65 CA ASP S 280 -24.576 19.131 -54.977 1.00 56.76 ATOM 66 C ASP S 280 -24.493 20.287 -55.972 1.00 52.27 ATOM 67 O ASP S 280 -25.422 20.538 -56.735 1.00 50.18 ATOM 68 CB ASP S 280 -25.106 19.628 -53.628 1.00 57.45 ATOM 69 CG ASP S 280 -25.678 18.514 -52.778 1.00 56.58 ATOM 70 OD1 ASP S 280 -25.584 17.326 -53.171 1.00 53.77 ATOM 71 OD2 ASP S 280 -26.226 18.842 -51.708 1.00 56.71 ATOM 72 N THR S 281 -23.359 20.975 -55.949 1.00 50.02 ATOM 73 CA THR S 281 -23.117 22.076 -56.856 1.00 51.32 ATOM 74 C THR S 281 -22.997 21.533 -58.264 1.00 52.40 ATOM 75 O THR S 281 -23.681 22.020 -59.163 1.00 57.30 ATOM 76 CB THR S 281 -21.864 22.894 -56.472 1.00 49.17 ATOM 77 OG1 THR S 281 -22.044 23.457 -55.169 1.00 48.55 ATOM 78 CG2 THR S 281 -21.658 24.039 -57.443 1.00 48.18 ATOM 79 N VAL S 282 -22.157 20.513 -58.442 1.00 49.93 ATOM 80 CA VAL S 282 -21.960 19.901 -59.750 1.00 50.18 ATOM 81 C VAL S 282 -23.291 19.432 -60.358 1.00 50.48 ATOM 82 O VAL S 282 -23.532 19.601 -61.541 1.00 51.89 ATOM 83 CB VAL S 282 -20.898 18.771 -59.706 1.00 45.98 ATOM 84 CG1 VAL S 282 -20.724 18.130 -61.071 1.00 45.77 ATOM 85 CG2 VAL S 282 -19.568 19.315 -59.223 1.00 43.47 ATOM 86 N GLY S 283 -24.177 18.914 -59.526 1.00 50.49 ATOM 87 CA GLY S 283 -25.443 18.415 -60.004 1.00 50.67 ATOM 88 C GLY S 283 -26.381 19.507 -60.455 1.00 53.38 ATOM 89 O GLY S 283 -27.042 19.365 -61.481 1.00 57.44 ATOM 90 N LEU S 284 -26.448 20.592 -59.690 1.00 54.37 ATOM 91 CA LEU S 284 -27.343 21.706 -60.008 1.00 55.64 ATOM 92 C LEU S 284 -26.807 22.532 -61.169 1.00 56.17 ATOM 93 O LEU S 284 -27.576 23.017 -62.001 1.00 57.07 ATOM 94 CB LEU S 284 -27.586 22.589 -58.775 1.00 54.60 ATOM 95 CG LEU S 284 -28.682 22.215 -57.769 1.00 53.64 ATOM 96 CD1 LEU S 284 -28.573 20.794 -57.230 1.00 54.25 ATOM 97 CD2 LEU S 284 -28.634 23.200 -56.622 1.00 54.03 ATOM 98 N THR S 285 -25.487 22.693 -61.222 1.00 56.18 ATOM 99 CA THR S 285 -24.840 23.309 -62.379 1.00 57.12 ATOM 100 C THR S 285 -25.265 22.577 -63.665 1.00 58.16 ATOM 101 O THR S 285 -25.624 23.216 -64.642 1.00 61.43 ATOM 102 CB THR S 285 -23.301 23.337 -62.219 1.00 55.74 ATOM 103 OG1 THR S 285 -22.953 24.312 -61.243 1.00 56.21 ATOM 104 CG2 THR S 285 -22.604 23.718 -63.512 1.00 57.22 ATOM 105 N ALA S 286 -25.255 21.243 -63.635 1.00 55.79 ATOM 106 CA ALA S 286 -25.608 20.419 -64.787 1.00 54.04 ATOM 107 C ALA S 286 -27.119 20.404 -65.016 1.00 55.20 ATOM 108 O ALA S 286 -27.587 20.423 -66.158 1.00 56.80 ATOM 109 CB ALA S 286 -25.072 19.008 -64.608 1.00 52.37 ATOM 110 N LEU S 287 -27.879 20.377 -63.930 1.00 55.53 ATOM 111 CA LEU S 287 -29.332 20.406 -64.006 1.00 57.62 ATOM 112 C LEU S 287 -29.846 21.746 -64.512 1.00 62.13 ATOM 113 O LEU S 287 -30.904 21.821 -65.143 1.00 64.98 ATOM 114 CB LEU S 287 -29.930 20.124 -62.635 1.00 57.06 ATOM 115 CG LEU S 287 -30.674 18.811 -62.458 1.00 57.93 ATOM 116 CD1 LEU S 287 -31.117 18.669 -61.006 1.00 57.19 ATOM 117 CD2 LEU S 287 -31.867 18.758 -63.403 1.00 58.50 ATOM 118 N GLY S 288 -29.091 22.806 -64.224 1.00 62.72 ATOM 119 CA GLY S 288 -29.486 24.163 -64.583 1.00 61.90 ATOM 120 C GLY S 288 -29.079 24.536 -65.983 1.00 61.31 ATOM 121 O GLY S 288 -29.774 25.301 -66.639 1.00 63.44 ATOM 122 N VAL S 289 -27.945 23.992 -66.429 1.00 60.91 ATOM 123 CA VAL S 289 -27.508 24.078 -67.822 1.00 62.34 ATOM 124 C VAL S 289 -28.520 23.431 -68.758 1.00 64.32 ATOM 125 O VAL S 289 -28.894 24.027 -69.768 1.00 66.03 ATOM 126 CB VAL S 289 -26.103 23.481 -68.021 1.00 59.61 ATOM 127 CG1 VAL S 289 -25.878 23.007 -69.452 1.00 59.82 ATOM 128 CG2 VAL S 289 -25.060 24.516 -67.631 1.00 59.34 ATOM 129 N VAL S 290 -29.001 22.250 -68.381 1.00 63.52 ATOM 130 CA VAL S 290 -29.994 21.537 -69.162 1.00 65.11 ATOM 131 C VAL S 290 -31.354 22.233 -69.114 1.00 66.35 ATOM 132 O VAL S 290 -32.008 22.388 -70.144 1.00 67.41 ATOM 133 CB VAL S 290 -30.080 20.069 -68.715 1.00 65.64 ATOM 134 CG1 VAL S 290 -31.318 19.382 -69.282 1.00 65.32 ATOM 135 CG2 VAL S 290 -28.823 19.339 -69.151 1.00 67.64 ATOM 136 N ALA S 291 -31.761 22.662 -67.923 1.00 67.45 ATOM 137 CA ALA S 291 -33.034 23.358 -67.743 1.00 69.98 ATOM 138 C ALA S 291 -33.094 24.652 -68.547 1.00 71.57 ATOM 139 O ALA S 291 -34.169 25.058 -68.996 1.00 73.14 ATOM 140 CB ALA S 291 -33.278 23.641 -66.273 1.00 70.63 ATOM 141 N ALA S 292 -31.935 25.290 -68.725 1.00 71.32 ATOM 142 CA ALA S 292 -31.827 26.502 -69.543 1.00 73.29 ATOM 143 C ALA S 292 -32.073 26.191 -71.019 1.00 75.26 ATOM 144 O ALA S 292 -32.864 26.871 -71.663 1.00 78.87 ATOM 145 CB ALA S 292 -30.470 27.177 -69.358 1.00 68.84 ATOM 146 N ALA S 293 -31.411 25.148 -71.528 1.00 74.23 ATOM 147 CA ALA S 293 -31.514 24.719 -72.934 1.00 73.81 ATOM 148 C ALA S 293 -32.895 24.176 -73.332 1.00 75.35 ATOM 149 O ALA S 293 -33.339 24.362 -74.471 1.00 77.63 ATOM 150 CB ALA S 293 -30.437 23.695 -73.250 1.00 71.31 ATOM 151 N VAL S 294 -33.554 23.495 -72.396 1.00 74.07 ATOM 152 CA VAL S 294 -34.903 22.970 -72.614 1.00 72.41 ATOM 153 C VAL S 294 -35.932 24.088 -72.503 1.00 72.96 ATOM 154 O VAL S 294 -36.942 24.069 -73.200 1.00 74.23 ATOM 155 CB VAL S 294 -35.231 21.820 -71.632 1.00 69.50 ATOM 156 CG1 VAL S 294 -36.727 21.548 -71.560 1.00 69.58 ATOM 157 CG2 VAL S 294 -34.494 20.558 -72.041 1.00 66.26 ATOM 158 N GLY S 295 -35.669 25.060 -71.646 1.00 73.09 ATOM 159 CA GLY S 295 -36.555 26.202 -71.542 1.00 76.83 ATOM 160 C GLY S 295 -37.460 26.155 -70.351 1.00 77.90 ATOM 161 O GLY S 295 -38.510 26.773 -70.334 1.00 77.35 ATOM 162 N VAL S 296 -37.039 25.399 -69.352 1.00 81.29 ATOM 163 CA VAL S 296 -37.730 25.331 -68.073 1.00 84.15 ATOM 164 C VAL S 296 -36.773 25.897 -67.023 1.00 86.49 ATOM 165 O VAL S 296 -36.632 25.363 -65.924 1.00 85.59 ATOM 166 CB VAL S 296 -38.123 23.889 -67.684 1.00 82.93 ATOM 167 CG1 VAL S 296 -39.337 23.914 -66.781 1.00 83.76 ATOM 168 CG2 VAL S 296 -38.396 23.027 -68.902 1.00 81.52 ATOM 169 N HIS S 297 -36.107 26.985 -67.382 1.00 86.77 ATOM 170 CA HIS S 297 -35.187 27.658 -66.486 1.00 87.01 ATOM 171 C HIS S 297 -35.847 28.127 -65.174 1.00 91.63 ATOM 172 O HIS S 297 -37.069 28.044 -64.994 1.00 88.02 ATOM 173 CB HIS S 297 -34.514 28.822 -67.210 1.00 80.87 ATOM 174 CG HIS S 297 -35.477 29.738 -67.890 1.00 78.93 ATOM 175 ND1 HIS S 297 -36.186 30.703 -67.216 1.00 77.99 ATOM 176 CD2 HIS S 297 -35.862 29.824 -69.180 1.00 79.66 ATOM 177 CE1 HIS S 297 -36.968 31.347 -68.056 1.00 78.88 ATOM 178 NE2 HIS S 297 -36.791 30.832 -69.256 1.00 82.15 ATOM 179 N ALA S 298 -34.992 28.607 -64.270 1.00 61.50 ATOM 180 CA ALA S 298 -35.348 29.069 -62.922 1.00 69.57 ATOM 181 C ALA S 298 -35.465 27.914 -61.911 1.00 69.42 ATOM 182 O ALA S 298 -34.493 27.548 -61.242 1.00 58.31 ATOM 183 CB ALA S 298 -36.617 29.912 -62.940 1.00 65.29 TER