HEADER MEMBRANE PROTEIN 31-DEC-69 7W2B TITLE The closed conformation of the sigma-1 receptor from Xenopus laevis COMPND MOL_ID: 1; COMPND 2 MOLECULE: Sigma non-opioid intracellular receptor 1; COMPND 3 CHAIN: A, C, E, D, F, B, G, H, I, J, K, L; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.20 ANGSTORMS DBREF 7W2B B 1 221 UNP Q6DCU6 SGMR1_XENLA 1 221 SEQRES 1 B 32 ASP THR MET ALA LEU TRP LEU GLY LEU ARG ALA VAL LEU SEQRES 2 B 32 VAL VAL ALA GLY LEU ALA VAL LEU LEU GLN LEU ILE ARG SEQRES 3 B 32 GLY TRP LEU SER SER LYS ATOM 1 N ASP B 3 41.337 -39.752 5.550 1.00141.23 ATOM 2 CA ASP B 3 42.090 -40.996 5.439 1.00140.18 ATOM 3 C ASP B 3 41.737 -41.737 4.152 1.00138.48 ATOM 4 O ASP B 3 42.537 -41.790 3.218 1.00138.19 ATOM 5 CB ASP B 3 41.829 -41.891 6.651 1.00141.37 ATOM 6 CG ASP B 3 42.661 -43.157 6.627 1.00142.22 ATOM 7 OD1 ASP B 3 43.902 -43.053 6.725 1.00143.56 ATOM 8 OD2 ASP B 3 42.075 -44.254 6.510 1.00141.70 ATOM 9 N THR B 4 40.538 -42.317 4.114 1.00142.46 ATOM 10 CA THR B 4 40.030 -42.998 2.927 1.00141.32 ATOM 11 C THR B 4 38.590 -42.563 2.709 1.00141.97 ATOM 12 O THR B 4 37.760 -42.685 3.615 1.00142.66 ATOM 13 CB THR B 4 40.117 -44.522 3.068 1.00140.78 ATOM 14 OG1 THR B 4 39.536 -44.925 4.315 1.00141.82 ATOM 15 CG2 THR B 4 41.565 -44.989 3.008 1.00140.91 ATOM 16 N MET B 5 38.295 -42.056 1.512 1.00143.15 ATOM 17 CA MET B 5 36.975 -41.525 1.199 1.00143.80 ATOM 18 C MET B 5 36.040 -42.552 0.576 1.00141.72 ATOM 19 O MET B 5 34.865 -42.238 0.351 1.00141.09 ATOM 20 CB MET B 5 37.096 -40.325 0.259 1.00144.75 ATOM 21 CG MET B 5 37.943 -39.190 0.798 1.00146.13 ATOM 22 SD MET B 5 37.384 -38.538 2.386 1.00148.63 ATOM 23 CE MET B 5 38.635 -39.194 3.489 1.00147.14 ATOM 24 N ALA B 6 36.524 -43.759 0.286 1.00141.66 ATOM 25 CA ALA B 6 35.679 -44.825 -0.247 1.00139.07 ATOM 26 C ALA B 6 34.898 -45.498 0.886 1.00138.59 ATOM 27 O ALA B 6 35.052 -46.682 1.182 1.00137.99 ATOM 28 CB ALA B 6 36.522 -45.831 -1.020 1.00138.19 ATOM 29 N LEU B 7 34.048 -44.700 1.530 1.00134.63 ATOM 30 CA LEU B 7 33.201 -45.186 2.607 1.00134.03 ATOM 31 C LEU B 7 32.151 -46.154 2.056 1.00130.91 ATOM 32 O LEU B 7 31.965 -46.289 0.842 1.00129.03 ATOM 33 CB LEU B 7 32.538 -44.006 3.322 1.00135.65 ATOM 34 CG LEU B 7 31.771 -44.222 4.630 1.00136.25 ATOM 35 CD1 LEU B 7 32.682 -44.778 5.715 1.00137.79 ATOM 36 CD2 LEU B 7 31.104 -42.931 5.084 1.00137.68 ATOM 37 N TRP B 8 31.448 -46.831 2.969 1.00125.06 ATOM 38 CA TRP B 8 30.417 -47.775 2.547 1.00121.92 ATOM 39 C TRP B 8 29.245 -47.062 1.882 1.00120.23 ATOM 40 O TRP B 8 28.743 -47.516 0.846 1.00117.22 ATOM 41 CB TRP B 8 29.941 -48.590 3.753 1.00122.43 ATOM 42 CG TRP B 8 28.766 -49.494 3.477 1.00120.89 ATOM 43 CD1 TRP B 8 27.451 -49.228 3.752 1.00120.24 ATOM 44 CD2 TRP B 8 28.789 -50.792 2.863 1.00120.06 ATOM 45 NE1 TRP B 8 26.660 -50.280 3.358 1.00119.20 ATOM 46 CE2 TRP B 8 27.455 -51.251 2.807 1.00118.97 ATOM 47 CE3 TRP B 8 29.806 -51.610 2.358 1.00120.49 ATOM 48 CZ2 TRP B 8 27.114 -52.491 2.267 1.00118.28 ATOM 49 CZ3 TRP B 8 29.463 -52.842 1.822 1.00119.89 ATOM 50 CH2 TRP B 8 28.129 -53.269 1.781 1.00118.74 ATOM 51 N LEU B 9 28.799 -45.941 2.454 1.00126.71 ATOM 52 CA LEU B 9 27.717 -45.185 1.838 1.00126.34 ATOM 53 C LEU B 9 28.153 -44.481 0.559 1.00125.93 ATOM 54 O LEU B 9 27.305 -44.196 -0.294 1.00124.00 ATOM 55 CB LEU B 9 27.131 -44.189 2.838 1.00129.01 ATOM 56 CG LEU B 9 26.326 -44.873 3.949 1.00128.77 ATOM 57 CD1 LEU B 9 25.820 -43.862 4.967 1.00131.39 ATOM 58 CD2 LEU B 9 25.175 -45.690 3.368 1.00125.31 ATOM 59 N GLY B 10 29.446 -44.199 0.398 1.00125.05 ATOM 60 CA GLY B 10 29.917 -43.605 -0.835 1.00125.45 ATOM 61 C GLY B 10 30.396 -44.596 -1.867 1.00122.53 ATOM 62 O GLY B 10 30.800 -44.202 -2.966 1.00122.46 ATOM 63 N LEU B 11 30.366 -45.886 -1.530 1.00125.52 ATOM 64 CA LEU B 11 30.751 -46.926 -2.477 1.00123.18 ATOM 65 C LEU B 11 29.790 -46.967 -3.657 1.00120.25 ATOM 66 O LEU B 11 30.209 -47.132 -4.811 1.00118.81 ATOM 67 CB LEU B 11 30.797 -48.282 -1.773 1.00122.35 ATOM 68 CG LEU B 11 31.442 -49.431 -2.548 1.00121.67 ATOM 69 CD1 LEU B 11 32.938 -49.202 -2.695 1.00123.57 ATOM 70 CD2 LEU B 11 31.156 -50.766 -1.877 1.00122.37 ATOM 71 N ARG B 12 28.492 -46.820 -3.376 1.00118.71 ATOM 72 CA ARG B 12 27.469 -46.933 -4.409 1.00116.35 ATOM 73 C ARG B 12 27.645 -45.883 -5.500 1.00117.29 ATOM 74 O ARG B 12 27.377 -46.159 -6.672 1.00115.36 ATOM 75 CB ARG B 12 26.076 -46.843 -3.780 1.00116.00 ATOM 76 CG ARG B 12 24.950 -47.281 -4.713 1.00114.30 ATOM 77 CD ARG B 12 23.593 -47.303 -4.015 1.00114.99 ATOM 78 NE ARG B 12 23.047 -45.969 -3.778 1.00116.28 ATOM 79 CZ ARG B 12 22.232 -45.335 -4.615 1.00115.17 ATOM 80 NH1 ARG B 12 21.994 -45.833 -5.822 1.00113.08 ATOM 81 NH2 ARG B 12 21.772 -44.130 -4.304 1.00116.13 ATOM 82 N ALA B 13 28.082 -44.672 -5.146 1.00112.62 ATOM 83 CA ALA B 13 28.225 -43.633 -6.165 1.00114.06 ATOM 84 C ALA B 13 29.325 -43.984 -7.163 1.00113.62 ATOM 85 O ALA B 13 29.121 -43.908 -8.383 1.00112.95 ATOM 86 CB ALA B 13 28.511 -42.285 -5.504 1.00117.89 ATOM 87 N VAL B 14 30.493 -44.391 -6.666 1.00110.65 ATOM 88 CA VAL B 14 31.565 -44.819 -7.560 1.00109.68 ATOM 89 C VAL B 14 31.130 -46.035 -8.367 1.00106.12 ATOM 90 O VAL B 14 31.406 -46.135 -9.572 1.00105.63 ATOM 91 CB VAL B 14 32.849 -45.098 -6.758 1.00111.53 ATOM 92 CG1 VAL B 14 33.891 -45.781 -7.634 1.00110.20 ATOM 93 CG2 VAL B 14 33.398 -43.804 -6.177 1.00114.76 ATOM 94 N LEU B 15 30.428 -46.970 -7.721 1.00108.67 ATOM 95 CA LEU B 15 29.984 -48.176 -8.412 1.00106.70 ATOM 96 C LEU B 15 29.033 -47.845 -9.558 1.00105.44 ATOM 97 O LEU B 15 29.177 -48.372 -10.666 1.00104.82 ATOM 98 CB LEU B 15 29.314 -49.124 -7.417 1.00106.18 ATOM 99 CG LEU B 15 30.222 -49.993 -6.544 1.00108.24 ATOM 100 CD1 LEU B 15 29.384 -50.848 -5.608 1.00107.28 ATOM 101 CD2 LEU B 15 31.128 -50.864 -7.398 1.00108.62 ATOM 102 N VAL B 16 28.058 -46.964 -9.314 1.00101.16 ATOM 103 CA VAL B 16 27.101 -46.621 -10.361 1.00101.15 ATOM 104 C VAL B 16 27.777 -45.833 -11.476 1.00103.13 ATOM 105 O VAL B 16 27.452 -46.016 -12.652 1.00102.48 ATOM 106 CB VAL B 16 25.870 -45.884 -9.792 1.00101.75 ATOM 107 CG1 VAL B 16 25.115 -46.779 -8.817 1.00 99.58 ATOM 108 CG2 VAL B 16 26.247 -44.570 -9.149 1.00105.09 ATOM 109 N VAL B 17 28.712 -44.936 -11.141 1.00 95.39 ATOM 110 CA VAL B 17 29.404 -44.190 -12.195 1.00 97.78 ATOM 111 C VAL B 17 30.193 -45.142 -13.089 1.00 96.37 ATOM 112 O VAL B 17 30.127 -45.064 -14.325 1.00 97.60 ATOM 113 CB VAL B 17 30.307 -43.102 -11.590 1.00101.02 ATOM 114 CG1 VAL B 17 31.189 -42.491 -12.666 1.00103.01 ATOM 115 CG2 VAL B 17 29.460 -42.027 -10.944 1.00103.47 ATOM 116 N ALA B 18 30.945 -46.062 -12.477 1.00 97.16 ATOM 117 CA ALA B 18 31.719 -47.015 -13.265 1.00 96.11 ATOM 118 C ALA B 18 30.808 -47.910 -14.096 1.00 93.73 ATOM 119 O ALA B 18 31.092 -48.179 -15.270 1.00 93.98 ATOM 120 CB ALA B 18 32.611 -47.854 -12.350 1.00 95.89 ATOM 121 N GLY B 19 29.705 -48.379 -13.505 1.00 93.01 ATOM 122 CA GLY B 19 28.782 -49.219 -14.247 1.00 91.40 ATOM 123 C GLY B 19 28.140 -48.492 -15.411 1.00 92.37 ATOM 124 O GLY B 19 27.992 -49.055 -16.497 1.00 92.36 ATOM 125 N LEU B 20 27.764 -47.227 -15.206 1.00 85.17 ATOM 126 CA LEU B 20 27.184 -46.441 -16.287 1.00 88.55 ATOM 127 C LEU B 20 28.183 -46.246 -17.415 1.00 91.83 ATOM 128 O LEU B 20 27.838 -46.404 -18.589 1.00 93.55 ATOM 129 CB LEU B 20 26.708 -45.087 -15.760 1.00 91.27 ATOM 130 CG LEU B 20 25.405 -45.059 -14.962 1.00 88.83 ATOM 131 CD1 LEU B 20 25.040 -43.631 -14.601 1.00 92.23 ATOM 132 CD2 LEU B 20 24.284 -45.719 -15.744 1.00 86.29 ATOM 133 N ALA B 21 29.434 -45.925 -17.079 1.00 86.98 ATOM 134 CA ALA B 21 30.445 -45.745 -18.116 1.00 89.24 ATOM 135 C ALA B 21 30.672 -47.037 -18.893 1.00 87.81 ATOM 136 O ALA B 21 30.705 -47.037 -20.132 1.00 90.50 ATOM 137 CB ALA B 21 31.750 -45.250 -17.492 1.00 89.52 ATOM 138 N VAL B 22 30.817 -48.157 -18.178 1.00 87.50 ATOM 139 CA VAL B 22 31.079 -49.434 -18.837 1.00 85.95 ATOM 140 C VAL B 22 29.901 -49.841 -19.714 1.00 86.33 ATOM 141 O VAL B 22 30.082 -50.279 -20.858 1.00 88.21 ATOM 142 CB VAL B 22 31.411 -50.513 -17.790 1.00 82.90 ATOM 143 CG1 VAL B 22 31.422 -51.892 -18.429 1.00 81.93 ATOM 144 CG2 VAL B 22 32.756 -50.223 -17.147 1.00 84.26 ATOM 145 N LEU B 23 28.677 -49.689 -19.204 1.00 82.25 ATOM 146 CA LEU B 23 27.504 -50.085 -19.973 1.00 82.16 ATOM 147 C LEU B 23 27.302 -49.178 -21.179 1.00 87.88 ATOM 148 O LEU B 23 26.885 -49.643 -22.244 1.00 89.45 ATOM 149 CB LEU B 23 26.267 -50.085 -19.078 1.00 78.37 ATOM 150 CG LEU B 23 25.156 -51.034 -19.527 1.00 75.53 ATOM 151 CD1 LEU B 23 25.636 -52.476 -19.451 1.00 74.20 ATOM 152 CD2 LEU B 23 23.909 -50.838 -18.684 1.00 73.05 ATOM 153 N LEU B 24 27.592 -47.882 -21.032 1.00 78.08 ATOM 154 CA LEU B 24 27.518 -46.968 -22.164 1.00 83.12 ATOM 155 C LEU B 24 28.500 -47.372 -23.252 1.00 85.77 ATOM 156 O LEU B 24 28.140 -47.446 -24.433 1.00 89.08 ATOM 157 CB LEU B 24 27.793 -45.538 -21.698 1.00 84.60 ATOM 158 CG LEU B 24 28.022 -44.496 -22.796 1.00 87.42 ATOM 159 CD1 LEU B 24 26.780 -44.325 -23.654 1.00 88.61 ATOM 160 CD2 LEU B 24 28.460 -43.164 -22.203 1.00 86.50 ATOM 161 N GLN B 25 29.748 -47.652 -22.869 1.00 82.48 ATOM 162 CA GLN B 25 30.730 -48.093 -23.853 1.00 84.19 ATOM 163 C GLN B 25 30.283 -49.383 -24.528 1.00 83.46 ATOM 164 O GLN B 25 30.384 -49.523 -25.755 1.00 87.15 ATOM 165 CB GLN B 25 32.093 -48.275 -23.184 1.00 81.55 ATOM 166 CG GLN B 25 33.237 -48.539 -24.148 1.00 83.27 ATOM 167 CD GLN B 25 34.584 -48.601 -23.451 1.00 81.72 ATOM 168 OE1 GLN B 25 35.354 -49.543 -23.646 1.00 79.79 ATOM 169 NE2 GLN B 25 34.878 -47.593 -22.637 1.00 81.61 ATOM 170 N LEU B 26 29.745 -50.320 -23.744 1.00 82.94 ATOM 171 CA LEU B 26 29.317 -51.605 -24.286 1.00 80.84 ATOM 172 C LEU B 26 28.189 -51.432 -25.295 1.00 85.31 ATOM 173 O LEU B 26 28.257 -51.953 -26.416 1.00 88.36 ATOM 174 CB LEU B 26 28.888 -52.522 -23.138 1.00 74.34 ATOM 175 CG LEU B 26 28.719 -54.023 -23.385 1.00 70.55 ATOM 176 CD1 LEU B 26 28.966 -54.782 -22.094 1.00 66.69 ATOM 177 CD2 LEU B 26 27.328 -54.352 -23.936 1.00 70.53 ATOM 178 N ILE B 27 27.139 -50.700 -24.916 1.00 72.97 ATOM 179 CA ILE B 27 25.989 -50.534 -25.799 1.00 75.80 ATOM 180 C ILE B 27 26.374 -49.737 -27.037 1.00 84.58 ATOM 181 O ILE B 27 25.900 -50.022 -28.142 1.00 88.18 ATOM 182 CB ILE B 27 24.820 -49.876 -25.045 1.00 72.42 ATOM 183 CG1 ILE B 27 24.380 -50.748 -23.867 1.00 64.00 ATOM 184 CG2 ILE B 27 23.651 -49.638 -25.984 1.00 73.68 ATOM 185 CD1 ILE B 27 23.257 -50.141 -23.047 1.00 59.95 ATOM 186 N ARG B 28 27.242 -48.734 -26.883 1.00 78.92 ATOM 187 CA ARG B 28 27.652 -47.938 -28.034 1.00 82.40 ATOM 188 C ARG B 28 28.450 -48.775 -29.026 1.00 85.02 ATOM 189 O ARG B 28 28.207 -48.707 -30.237 1.00 87.05 ATOM 190 CB ARG B 28 28.456 -46.726 -27.564 1.00 79.04 ATOM 191 CG ARG B 28 28.690 -45.665 -28.627 1.00 77.48 ATOM 192 CD ARG B 28 29.004 -44.318 -27.987 1.00 73.16 ATOM 193 NE ARG B 28 30.204 -44.371 -27.154 1.00 72.42 ATOM 194 CZ ARG B 28 30.557 -43.425 -26.288 1.00 69.46 ATOM 195 NH1 ARG B 28 29.797 -42.349 -26.131 1.00 67.00 ATOM 196 NH2 ARG B 28 31.668 -43.558 -25.574 1.00 69.28 ATOM 197 N GLY B 29 29.395 -49.582 -28.536 1.00 74.34 ATOM 198 CA GLY B 29 30.131 -50.461 -29.431 1.00 74.49 ATOM 199 C GLY B 29 29.241 -51.499 -30.086 1.00 74.97 ATOM 200 O GLY B 29 29.421 -51.835 -31.263 1.00 76.17 ATOM 201 N TRP B 30 28.266 -52.017 -29.335 1.00 69.69 ATOM 202 CA TRP B 30 27.286 -52.934 -29.907 1.00 69.91 ATOM 203 C TRP B 30 26.552 -52.280 -31.068 1.00 75.86 ATOM 204 O TRP B 30 26.545 -52.800 -32.188 1.00 76.18 ATOM 205 CB TRP B 30 26.300 -53.377 -28.826 1.00 63.58 ATOM 206 CG TRP B 30 25.319 -54.417 -29.277 1.00 60.73 ATOM 207 CD1 TRP B 30 25.557 -55.458 -30.127 1.00 61.92 ATOM 208 CD2 TRP B 30 23.938 -54.512 -28.904 1.00 54.68 ATOM 209 NE1 TRP B 30 24.412 -56.199 -30.300 1.00 57.61 ATOM 210 CE2 TRP B 30 23.404 -55.638 -29.561 1.00 54.59 ATOM 211 CE3 TRP B 30 23.103 -53.753 -28.077 1.00 53.51 ATOM 212 CZ2 TRP B 30 22.074 -56.025 -29.417 1.00 53.34 ATOM 213 CZ3 TRP B 30 21.783 -54.138 -27.935 1.00 52.37 ATOM 214 CH2 TRP B 30 21.282 -55.265 -28.601 1.00 52.27 ATOM 215 N LEU B 31 25.942 -51.119 -30.819 1.00 68.30 ATOM 216 CA LEU B 31 25.210 -50.417 -31.866 1.00 67.63 ATOM 217 C LEU B 31 26.105 -50.068 -33.045 1.00 69.56 ATOM 218 O LEU B 31 25.639 -50.044 -34.189 1.00 68.71 ATOM 219 CB LEU B 31 24.570 -49.150 -31.301 1.00 65.83 ATOM 220 CG LEU B 31 23.579 -49.337 -30.155 1.00 64.30 ATOM 221 CD1 LEU B 31 22.973 -48.005 -29.753 1.00 63.94 ATOM 222 CD2 LEU B 31 22.506 -50.330 -30.541 1.00 63.41 ATOM 223 N SER B 32 27.388 -49.800 -32.798 1.00 70.83 ATOM 224 CA SER B 32 28.283 -49.437 -33.886 1.00 69.52 ATOM 225 C SER B 32 28.750 -50.635 -34.703 1.00 69.63 ATOM 226 O SER B 32 29.157 -50.453 -35.855 1.00 69.10 ATOM 227 CB SER B 32 29.496 -48.677 -33.345 1.00 68.23 ATOM 228 OG SER B 32 30.252 -49.476 -32.453 1.00 68.54 ATOM 229 N SER B 33 28.707 -51.849 -34.148 1.00 70.60 ATOM 230 CA SER B 33 29.099 -53.042 -34.895 1.00 69.62 ATOM 231 C SER B 33 27.949 -54.015 -35.147 1.00 69.85 ATOM 232 O SER B 33 28.135 -54.995 -35.875 1.00 69.17 ATOM 233 CB SER B 33 30.241 -53.765 -34.171 1.00 67.05 ATOM 234 OG SER B 33 29.870 -54.133 -32.854 1.00 64.97 ATOM 235 N LYS B 34 26.773 -53.766 -34.576 1.00 74.17 ATOM 236 CA LYS B 34 25.627 -54.655 -34.727 1.00 71.95 ATOM 237 C LYS B 34 25.138 -54.708 -36.171 1.00 70.23 ATOM 238 O LYS B 34 25.082 -53.685 -36.860 1.00 68.19 ATOM 239 CB LYS B 34 24.484 -54.192 -33.821 1.00 67.74 ATOM 240 CG LYS B 34 23.243 -55.044 -33.900 1.00 65.93 ATOM 241 CD LYS B 34 22.167 -54.560 -32.961 1.00 62.62 ATOM 242 CE LYS B 34 20.957 -55.479 -33.036 1.00 61.80 ATOM 243 NZ LYS B 34 20.329 -55.471 -34.392 1.00 60.19 TER