HEADER OXIDOREDUCTASE/ELECTRON TRANSPORT 31-JUL-12 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 R 1 327 UNP P69739 MBHS_ECOLI 46 372 SEQRES 1 R 31 MET GLY THR HIS SER THR ALA ASP THR VAL GLY LEU THR SEQRES 2 R 31 ALA LEU GLY VAL VAL ALA ALA ALA VAL GLY VAL HIS ALA SEQRES 3 R 31 VAL ALA SER ALA VAL ATOM 1 N MET R 273 18.053 24.498 -73.273 1.00113.86 ATOM 2 CA MET R 273 16.789 25.231 -73.269 1.00117.03 ATOM 3 C MET R 273 16.883 26.568 -72.514 1.00119.47 ATOM 4 O MET R 273 15.878 27.274 -72.362 1.00120.86 ATOM 5 CB MET R 273 15.679 24.375 -72.654 1.00116.11 ATOM 6 CG MET R 273 15.484 23.006 -73.288 1.00113.91 ATOM 7 SD MET R 273 15.180 23.087 -75.051 1.00115.63 ATOM 8 CE MET R 273 13.602 23.953 -75.148 1.00115.73 ATOM 9 N GLY R 274 18.082 26.890 -72.025 1.00120.42 ATOM 10 CA GLY R 274 18.355 28.174 -71.385 1.00122.99 ATOM 11 C GLY R 274 18.056 28.259 -69.899 1.00123.24 ATOM 12 O GLY R 274 18.000 27.237 -69.207 1.00121.19 ATOM 13 N THR R 275 17.856 29.498 -69.435 1.00126.35 ATOM 14 CA THR R 275 17.680 29.867 -68.015 1.00127.11 ATOM 15 C THR R 275 17.294 28.710 -67.102 1.00125.40 ATOM 16 O THR R 275 18.128 28.234 -66.331 1.00124.09 ATOM 17 CB THR R 275 16.670 31.035 -67.831 1.00129.53 ATOM 18 OG1 THR R 275 15.391 30.646 -68.347 1.00132.51 ATOM 19 CG2 THR R 275 17.153 32.312 -68.543 1.00132.39 ATOM 20 N HIS R 276 16.046 28.247 -67.204 1.00126.17 ATOM 21 CA HIS R 276 15.565 27.122 -66.385 1.00124.35 ATOM 22 C HIS R 276 14.868 26.041 -67.202 1.00123.56 ATOM 23 O HIS R 276 15.381 24.924 -67.293 1.00122.82 ATOM 24 CB HIS R 276 14.691 27.617 -65.233 1.00124.39 ATOM 25 CG HIS R 276 15.413 28.545 -64.306 1.00127.78 ATOM 26 ND1 HIS R 276 15.405 29.916 -64.468 1.00131.09 ATOM 27 CD2 HIS R 276 16.199 28.297 -63.231 1.00127.23 ATOM 28 CE1 HIS R 276 16.136 30.472 -63.518 1.00131.07 ATOM 29 NE2 HIS R 276 16.632 29.511 -62.757 1.00129.88 ATOM 30 N SER R 277 13.718 26.380 -67.790 1.00123.65 ATOM 31 CA SER R 277 12.972 25.496 -68.703 1.00122.09 ATOM 32 C SER R 277 13.342 23.992 -68.614 1.00118.71 ATOM 33 O SER R 277 14.295 23.523 -69.250 1.00118.58 ATOM 34 CB SER R 277 13.064 26.019 -70.144 1.00123.33 ATOM 35 N THR R 278 12.586 23.259 -67.800 1.00114.79 ATOM 36 CA THR R 278 12.777 21.822 -67.619 1.00109.62 ATOM 37 C THR R 278 11.918 21.018 -68.600 1.00107.75 ATOM 38 O THR R 278 11.041 21.572 -69.269 1.00108.68 ATOM 39 CB THR R 278 12.491 21.383 -66.155 1.00107.98 ATOM 40 OG1 THR R 278 12.862 20.014 -65.996 1.00111.52 ATOM 41 CG2 THR R 278 11.012 21.541 -65.776 1.00105.34 ATOM 42 N ALA R 279 12.175 19.713 -68.674 1.00103.83 ATOM 43 CA ALA R 279 11.449 18.821 -69.570 1.00101.97 ATOM 44 C ALA R 279 9.959 19.064 -69.474 1.00101.76 ATOM 45 O ALA R 279 9.286 19.203 -70.488 1.00102.31 ATOM 46 CB ALA R 279 11.771 17.385 -69.251 1.00100.20 ATOM 47 N ASP R 280 9.470 19.128 -68.236 1.00101.13 ATOM 48 CA ASP R 280 8.069 19.393 -67.925 1.00102.59 ATOM 49 C ASP R 280 7.658 20.763 -68.442 1.00103.94 ATOM 50 O ASP R 280 6.681 20.879 -69.177 1.00106.04 ATOM 51 CB ASP R 280 7.820 19.290 -66.410 1.00102.33 ATOM 52 CG ASP R 280 7.642 17.840 -65.924 1.00104.98 ATOM 53 OD1 ASP R 280 7.257 16.965 -66.733 1.00108.18 ATOM 54 OD2 ASP R 280 7.872 17.574 -64.719 1.00106.83 ATOM 55 N THR R 281 8.426 21.787 -68.079 1.00102.33 ATOM 56 CA THR R 281 8.159 23.160 -68.503 1.00103.19 ATOM 57 C THR R 281 7.946 23.287 -70.004 1.00104.16 ATOM 58 O THR R 281 6.923 23.806 -70.456 1.00106.47 ATOM 59 CB THR R 281 9.312 24.087 -68.110 1.00103.19 ATOM 60 OG1 THR R 281 9.338 24.218 -66.691 1.00101.84 ATOM 61 CG2 THR R 281 9.145 25.474 -68.733 1.00108.27 ATOM 62 N VAL R 282 8.927 22.816 -70.765 1.00102.09 ATOM 63 CA VAL R 282 8.895 22.913 -72.214 1.00102.21 ATOM 64 C VAL R 282 7.787 22.035 -72.778 1.00103.06 ATOM 65 O VAL R 282 7.051 22.456 -73.667 1.00105.12 ATOM 66 CB VAL R 282 10.268 22.559 -72.801 1.00101.00 ATOM 67 CG1 VAL R 282 10.205 22.399 -74.298 1.00101.06 ATOM 68 CG2 VAL R 282 11.276 23.637 -72.425 1.00100.79 ATOM 69 N GLY R 283 7.657 20.828 -72.233 1.00101.74 ATOM 70 CA GLY R 283 6.579 19.908 -72.605 1.00101.74 ATOM 71 C GLY R 283 5.184 20.462 -72.374 1.00102.47 ATOM 72 O GLY R 283 4.329 20.430 -73.266 1.00103.85 ATOM 73 N LEU R 284 4.965 20.988 -71.177 1.00101.61 ATOM 74 CA LEU R 284 3.680 21.569 -70.819 1.00104.27 ATOM 75 C LEU R 284 3.391 22.889 -71.534 1.00108.23 ATOM 76 O LEU R 284 2.223 23.253 -71.741 1.00110.31 ATOM 77 CB LEU R 284 3.576 21.730 -69.307 1.00102.29 ATOM 78 CG LEU R 284 3.445 20.380 -68.604 1.00 99.53 ATOM 79 CD1 LEU R 284 3.805 20.471 -67.123 1.00 96.73 ATOM 80 CD2 LEU R 284 2.048 19.817 -68.803 1.00 98.60 ATOM 81 N THR R 285 4.453 23.602 -71.904 1.00109.35 ATOM 82 CA THR R 285 4.329 24.778 -72.768 1.00112.68 ATOM 83 C THR R 285 3.738 24.339 -74.121 1.00114.07 ATOM 84 O THR R 285 2.718 24.885 -74.576 1.00116.83 ATOM 85 CB THR R 285 5.703 25.523 -72.939 1.00113.04 ATOM 86 OG1 THR R 285 6.069 26.168 -71.705 1.00112.73 ATOM 87 CG2 THR R 285 5.662 26.565 -74.090 1.00115.19 ATOM 88 N ALA R 286 4.371 23.333 -74.728 1.00111.43 ATOM 89 CA ALA R 286 3.940 22.784 -76.009 1.00111.54 ATOM 90 C ALA R 286 2.505 22.248 -75.931 1.00111.58 ATOM 91 O ALA R 286 1.674 22.521 -76.806 1.00112.68 ATOM 92 CB ALA R 286 4.907 21.694 -76.454 1.00109.55 ATOM 93 N LEU R 287 2.220 21.504 -74.865 1.00109.51 ATOM 94 CA LEU R 287 0.904 20.905 -74.666 1.00110.41 ATOM 95 C LEU R 287 -0.206 21.959 -74.672 1.00114.06 ATOM 96 O LEU R 287 -1.236 21.775 -75.327 1.00115.80 ATOM 97 CB LEU R 287 0.873 20.084 -73.369 1.00107.28 ATOM 98 CG LEU R 287 -0.192 18.985 -73.232 1.00105.95 ATOM 99 CD1 LEU R 287 -0.117 17.957 -74.372 1.00105.19 ATOM 100 CD2 LEU R 287 -0.082 18.292 -71.874 1.00100.78 ATOM 101 N GLY R 288 0.023 23.061 -73.955 1.00115.03 ATOM 102 CA GLY R 288 -0.916 24.182 -73.905 1.00117.40 ATOM 103 C GLY R 288 -0.987 24.973 -75.198 1.00119.81 ATOM 104 O GLY R 288 -1.996 25.625 -75.479 1.00121.57 ATOM 105 N VAL R 289 0.092 24.927 -75.977 1.00119.85 ATOM 106 CA VAL R 289 0.114 25.566 -77.286 1.00123.40 ATOM 107 C VAL R 289 -0.856 24.842 -78.217 1.00126.03 ATOM 108 O VAL R 289 -1.721 25.470 -78.836 1.00128.71 ATOM 109 CB VAL R 289 1.537 25.594 -77.898 1.00122.34 ATOM 110 CG1 VAL R 289 1.498 26.001 -79.368 1.00124.06 ATOM 111 CG2 VAL R 289 2.431 26.534 -77.117 1.00121.22 ATOM 112 N VAL R 290 -0.720 23.519 -78.293 1.00125.43 ATOM 113 CA VAL R 290 -1.571 22.709 -79.172 1.00127.58 ATOM 114 C VAL R 290 -2.993 22.620 -78.606 1.00129.14 ATOM 115 O VAL R 290 -3.951 22.411 -79.355 1.00130.62 ATOM 116 CB VAL R 290 -0.969 21.294 -79.450 1.00125.60 ATOM 117 CG1 VAL R 290 -1.692 20.610 -80.616 1.00126.35 ATOM 118 CG2 VAL R 290 0.527 21.386 -79.757 1.00123.43 ATOM 119 N ALA R 291 -3.113 22.799 -77.287 1.00129.36 ATOM 120 CA ALA R 291 -4.415 22.848 -76.603 1.00131.72 ATOM 121 C ALA R 291 -5.226 24.075 -77.019 1.00136.29 ATOM 122 O ALA R 291 -6.458 24.032 -77.039 1.00138.11 ATOM 123 CB ALA R 291 -4.238 22.818 -75.094 1.00128.65 ATOM 124 N ALA R 292 -4.524 25.160 -77.349 1.00138.78 ATOM 125 CA ALA R 292 -5.150 26.387 -77.848 1.00143.14 ATOM 126 C ALA R 292 -5.252 26.373 -79.368 1.00146.33 ATOM 127 O ALA R 292 -6.179 26.948 -79.935 1.00149.40 ATOM 128 CB ALA R 292 -4.385 27.617 -77.371 1.00143.01 ATOM 129 N ALA R 293 -4.295 25.718 -80.023 1.00146.35 ATOM 130 CA ALA R 293 -4.367 25.493 -81.461 1.00149.83 ATOM 131 C ALA R 293 -5.586 24.625 -81.790 1.00152.34 ATOM 132 O ALA R 293 -6.141 24.724 -82.888 1.00155.29 ATOM 133 CB ALA R 293 -3.083 24.856 -81.975 1.00147.73 ATOM 134 N VAL R 294 -5.996 23.788 -80.830 1.00151.58 ATOM 135 CA VAL R 294 -7.269 23.051 -80.895 1.00153.90 ATOM 136 C VAL R 294 -8.469 23.993 -80.676 1.00157.96 ATOM 137 O VAL R 294 -9.504 23.863 -81.349 1.00161.02 ATOM 138 CB VAL R 294 -7.295 21.853 -79.896 1.00150.70 ATOM 139 CG1 VAL R 294 -8.729 21.363 -79.614 1.00151.44 ATOM 140 CG2 VAL R 294 -6.436 20.712 -80.421 1.00149.26 ATOM 141 N GLY R 295 -8.320 24.940 -79.747 1.00158.03 ATOM 142 CA GLY R 295 -9.344 25.954 -79.492 1.00161.24 ATOM 143 C GLY R 295 -9.626 26.882 -80.669 1.00165.39 ATOM 144 O GLY R 295 -10.729 27.414 -80.794 1.00168.04 ATOM 145 N VAL R 296 -8.635 27.073 -81.537 1.00166.17 ATOM 146 CA VAL R 296 -8.777 27.989 -82.672 1.00170.58 ATOM 147 C VAL R 296 -9.454 27.351 -83.909 1.00174.24 ATOM 148 O VAL R 296 -10.229 28.018 -84.595 1.00177.86 ATOM 149 CB VAL R 296 -7.431 28.738 -83.006 1.00169.74 ATOM 150 CG1 VAL R 296 -6.401 27.816 -83.661 1.00167.02 ATOM 151 CG2 VAL R 296 -7.682 29.986 -83.857 1.00172.16 ATOM 152 N HIS R 297 -9.181 26.069 -84.173 1.00173.79 ATOM 153 CA HIS R 297 -9.811 25.339 -85.297 1.00176.81 ATOM 154 C HIS R 297 -11.205 24.801 -84.969 1.00177.96 ATOM 155 O HIS R 297 -12.007 24.558 -85.876 1.00180.29 ATOM 156 CB HIS R 297 -8.917 24.198 -85.802 1.00175.14 ATOM 157 CG HIS R 297 -8.228 24.489 -87.102 1.00177.66 ATOM 158 ND1 HIS R 297 -7.047 25.197 -87.180 1.00177.87 ATOM 159 CD2 HIS R 297 -8.550 24.152 -88.374 1.00179.81 ATOM 160 CE1 HIS R 297 -6.674 25.290 -88.444 1.00179.36 ATOM 161 NE2 HIS R 297 -7.569 24.664 -89.189 1.00180.96 ATOM 162 N ALA R 298 -11.470 24.590 -83.678 1.00176.24 ATOM 163 CA ALA R 298 -12.806 24.240 -83.191 1.00177.23 ATOM 164 C ALA R 298 -13.715 25.468 -83.221 1.00180.65 ATOM 165 O ALA R 298 -14.902 25.355 -83.523 1.00183.44 ATOM 166 CB ALA R 298 -12.739 23.657 -81.787 1.00173.82 ATOM 167 N VAL R 299 -13.149 26.637 -82.911 1.00180.54 ATOM 168 CA VAL R 299 -13.847 27.915 -83.073 1.00183.68 ATOM 169 C VAL R 299 -13.957 28.289 -84.556 1.00187.25 ATOM 170 O VAL R 299 -14.652 29.241 -84.913 1.00190.58 ATOM 171 CB VAL R 299 -13.154 29.056 -82.299 1.00182.21 ATOM 172 N ALA R 300 -13.270 27.527 -85.408 1.00186.91 ATOM 173 CA ALA R 300 -13.326 27.703 -86.863 1.00190.29 ATOM 174 C ALA R 300 -14.275 26.700 -87.540 1.00192.02 ATOM 175 O ALA R 300 -14.114 26.387 -88.729 1.00193.79 ATOM 176 CB ALA R 300 -11.918 27.612 -87.470 1.00188.54 ATOM 177 N SER R 301 -15.262 26.212 -86.782 1.00191.44 ATOM 178 CA SER R 301 -16.237 25.229 -87.279 1.00191.79 ATOM 179 C SER R 301 -17.487 25.896 -87.869 1.00195.63 ATOM 180 O SER R 301 -18.597 25.742 -87.347 1.00196.50 ATOM 181 CB SER R 301 -16.619 24.234 -86.175 1.00188.95 ATOM 182 OG SER R 301 -15.477 23.558 -85.676 1.00183.58 ATOM 183 N ALA R 302 -17.289 26.628 -88.965 1.00197.48 ATOM 184 CA ALA R 302 -18.367 27.334 -89.653 1.00201.50 ATOM 185 C ALA R 302 -19.242 26.388 -90.494 1.00203.27 ATOM 186 O ALA R 302 -19.218 26.429 -91.730 1.00205.50 ATOM 187 CB ALA R 302 -17.795 28.467 -90.508 1.00203.39 ATOM 188 N VAL R 303 -20.008 25.541 -89.805 1.00202.00 ATOM 189 CA VAL R 303 -20.937 24.608 -90.443 1.00203.14 ATOM 190 C VAL R 303 -22.285 25.278 -90.681 1.00207.21 ATOM 191 O VAL R 303 -22.959 25.006 -91.673 1.00209.87 ATOM 192 CB VAL R 303 -21.153 23.340 -89.588 1.00199.99 TER