HEADER MEMBRANE PROTEIN 31-DEC-69 7W2E TITLE An open-like 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, B, C, D, E, F, G, H, I, J, K, L; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.56 ANGSTORMS DBREF 7W2E I 1 221 UNP Q6DCU6 SGMR1_XENLA 1 221 SEQRES 1 I 34 SER VAL ASP THR MET ALA LEU TRP LEU GLY LEU ARG ALA SEQRES 2 I 34 VAL LEU VAL VAL ALA GLY LEU ALA VAL LEU LEU GLN LEU SEQRES 3 I 34 ILE ARG GLY TRP LEU SER SER LYS ATOM 1 N ALA K 2 -19.050 37.881 34.200 1.00146.63 ATOM 2 CA ALA K 2 -17.707 38.069 34.734 1.00138.84 ATOM 3 C ALA K 2 -17.457 39.536 35.066 1.00139.91 ATOM 4 O ALA K 2 -16.570 39.854 35.858 1.00138.70 ATOM 5 CB ALA K 2 -16.664 37.558 33.750 1.00135.97 ATOM 6 N LEU K 3 -18.237 40.430 34.451 1.00142.22 ATOM 7 CA LEU K 3 -18.090 41.854 34.742 1.00145.43 ATOM 8 C LEU K 3 -18.529 42.176 36.166 1.00148.26 ATOM 9 O LEU K 3 -17.879 42.971 36.857 1.00147.38 ATOM 10 CB LEU K 3 -18.897 42.681 33.735 1.00152.70 ATOM 11 CG LEU K 3 -18.790 44.208 33.818 1.00157.50 ATOM 12 CD1 LEU K 3 -17.375 44.674 33.526 1.00152.09 ATOM 13 CD2 LEU K 3 -19.787 44.895 32.891 1.00157.40 ATOM 14 N TRP K 4 -19.628 41.567 36.624 1.00164.27 ATOM 15 CA TRP K 4 -20.056 41.735 38.011 1.00160.97 ATOM 16 C TRP K 4 -19.010 41.198 38.979 1.00151.35 ATOM 17 O TRP K 4 -18.709 41.832 39.998 1.00147.80 ATOM 18 CB TRP K 4 -21.409 41.059 38.246 1.00155.00 ATOM 19 CG TRP K 4 -22.006 41.378 39.601 1.00161.66 ATOM 20 CD1 TRP K 4 -22.141 42.618 40.161 1.00164.49 ATOM 21 CD2 TRP K 4 -22.565 40.452 40.546 1.00160.39 ATOM 22 NE1 TRP K 4 -22.737 42.521 41.395 1.00162.93 ATOM 23 CE2 TRP K 4 -23.008 41.204 41.655 1.00161.06 ATOM 24 CE3 TRP K 4 -22.729 39.063 40.564 1.00150.65 ATOM 25 CZ2 TRP K 4 -23.603 40.613 42.768 1.00153.21 ATOM 26 CZ3 TRP K 4 -23.321 38.479 41.672 1.00147.64 ATOM 27 CH2 TRP K 4 -23.750 39.253 42.758 1.00150.81 ATOM 28 N LEU K 5 -18.453 40.023 38.676 1.00157.03 ATOM 29 CA LEU K 5 -17.535 39.359 39.597 1.00156.04 ATOM 30 C LEU K 5 -16.304 40.219 39.867 1.00155.37 ATOM 31 O LEU K 5 -15.806 40.263 40.999 1.00151.19 ATOM 32 CB LEU K 5 -17.141 37.989 39.039 1.00148.40 ATOM 33 CG LEU K 5 -16.572 36.955 40.013 1.00138.88 ATOM 34 CD1 LEU K 5 -17.659 36.503 40.981 1.00131.97 ATOM 35 CD2 LEU K 5 -15.984 35.774 39.259 1.00128.53 ATOM 36 N GLY K 6 -15.788 40.896 38.837 1.00142.61 ATOM 37 CA GLY K 6 -14.645 41.774 39.038 1.00150.31 ATOM 38 C GLY K 6 -14.950 42.896 40.014 1.00155.64 ATOM 39 O GLY K 6 -14.124 43.239 40.864 1.00156.13 ATOM 40 N LEU K 7 -16.141 43.484 39.905 1.00151.03 ATOM 41 CA LEU K 7 -16.513 44.564 40.812 1.00152.69 ATOM 42 C LEU K 7 -16.812 44.041 42.212 1.00146.23 ATOM 43 O LEU K 7 -16.563 44.741 43.201 1.00147.05 ATOM 44 CB LEU K 7 -17.734 45.306 40.260 1.00157.77 ATOM 45 CG LEU K 7 -18.333 46.466 41.058 1.00161.84 ATOM 46 CD1 LEU K 7 -17.372 47.644 41.147 1.00165.69 ATOM 47 CD2 LEU K 7 -19.665 46.887 40.460 1.00166.43 ATOM 48 N ARG K 8 -17.294 42.800 42.316 1.00161.22 ATOM 49 CA ARG K 8 -17.631 42.233 43.619 1.00153.32 ATOM 50 C ARG K 8 -16.407 42.114 44.525 1.00150.51 ATOM 51 O ARG K 8 -16.475 42.444 45.716 1.00153.43 ATOM 52 CB ARG K 8 -18.300 40.871 43.417 1.00146.87 ATOM 53 CG ARG K 8 -18.581 40.099 44.688 1.00140.32 ATOM 54 CD ARG K 8 -19.414 38.860 44.401 1.00135.48 ATOM 55 NE ARG K 8 -19.676 38.101 45.621 1.00131.72 ATOM 56 CZ ARG K 8 -18.948 37.067 46.032 1.00127.46 ATOM 57 NH1 ARG K 8 -17.905 36.655 45.318 1.00125.27 ATOM 58 NH2 ARG K 8 -19.266 36.445 47.160 1.00123.94 ATOM 59 N ALA K 9 -15.273 41.667 43.977 1.00147.57 ATOM 60 CA ALA K 9 -14.061 41.550 44.785 1.00145.39 ATOM 61 C ALA K 9 -13.560 42.915 45.240 1.00150.27 ATOM 62 O ALA K 9 -13.159 43.083 46.399 1.00147.68 ATOM 63 CB ALA K 9 -12.972 40.816 44.001 1.00145.52 ATOM 64 N VAL K 10 -13.584 43.903 44.342 1.00140.21 ATOM 65 CA VAL K 10 -13.174 45.253 44.713 1.00145.63 ATOM 66 C VAL K 10 -14.104 45.809 45.780 1.00145.00 ATOM 67 O VAL K 10 -13.665 46.489 46.717 1.00143.51 ATOM 68 CB VAL K 10 -13.131 46.159 43.469 1.00148.36 ATOM 69 CG1 VAL K 10 -12.850 47.597 43.867 1.00151.90 ATOM 70 CG2 VAL K 10 -12.085 45.658 42.491 1.00145.49 ATOM 71 N LEU K 11 -15.399 45.506 45.671 1.00140.13 ATOM 72 CA LEU K 11 -16.352 45.978 46.669 1.00141.64 ATOM 73 C LEU K 11 -16.080 45.355 48.033 1.00137.25 ATOM 74 O LEU K 11 -16.105 46.052 49.055 1.00140.90 ATOM 75 CB LEU K 11 -17.776 45.663 46.213 1.00142.40 ATOM 76 CG LEU K 11 -18.880 46.645 46.602 1.00144.14 ATOM 77 CD1 LEU K 11 -18.714 47.955 45.848 1.00147.91 ATOM 78 CD2 LEU K 11 -20.245 46.034 46.337 1.00143.28 ATOM 79 N VAL K 12 -15.791 44.052 48.068 1.00143.27 ATOM 80 CA VAL K 12 -15.492 43.394 49.339 1.00136.87 ATOM 81 C VAL K 12 -14.226 43.973 49.955 1.00136.39 ATOM 82 O VAL K 12 -14.162 44.222 51.167 1.00138.54 ATOM 83 CB VAL K 12 -15.383 41.869 49.146 1.00130.77 ATOM 84 CG1 VAL K 12 -14.836 41.207 50.404 1.00124.53 ATOM 85 CG2 VAL K 12 -16.733 41.289 48.782 1.00130.87 ATOM 86 N VAL K 13 -13.195 44.188 49.134 1.00135.67 ATOM 87 CA VAL K 13 -11.943 44.741 49.647 1.00135.70 ATOM 88 C VAL K 13 -12.163 46.145 50.200 1.00138.01 ATOM 89 O VAL K 13 -11.655 46.491 51.274 1.00136.52 ATOM 90 CB VAL K 13 -10.863 44.729 48.551 1.00135.60 ATOM 91 CG1 VAL K 13 -9.615 45.468 49.025 1.00136.62 ATOM 92 CG2 VAL K 13 -10.546 43.305 48.134 1.00133.18 ATOM 93 N ALA K 14 -12.944 46.968 49.494 1.00138.34 ATOM 94 CA ALA K 14 -13.184 48.327 49.967 1.00142.25 ATOM 95 C ALA K 14 -13.991 48.327 51.257 1.00141.88 ATOM 96 O ALA K 14 -13.708 49.110 52.173 1.00141.82 ATOM 97 CB ALA K 14 -13.894 49.140 48.885 1.00147.35 ATOM 98 N GLY K 15 -14.979 47.436 51.363 1.00139.39 ATOM 99 CA GLY K 15 -15.760 47.363 52.586 1.00139.39 ATOM 100 C GLY K 15 -14.937 46.905 53.774 1.00135.76 ATOM 101 O GLY K 15 -15.043 47.467 54.869 1.00137.17 ATOM 102 N LEU K 16 -14.094 45.892 53.572 1.00130.28 ATOM 103 CA LEU K 16 -13.221 45.445 54.650 1.00126.82 ATOM 104 C LEU K 16 -12.221 46.526 55.039 1.00128.71 ATOM 105 O LEU K 16 -11.923 46.702 56.225 1.00127.79 ATOM 106 CB LEU K 16 -12.513 44.156 54.242 1.00124.45 ATOM 107 CG LEU K 16 -13.450 42.954 54.305 1.00121.67 ATOM 108 CD1 LEU K 16 -12.714 41.662 54.046 1.00119.38 ATOM 109 CD2 LEU K 16 -14.131 42.915 55.663 1.00119.76 ATOM 110 N ALA K 17 -11.702 47.271 54.060 1.00133.38 ATOM 111 CA ALA K 17 -10.771 48.350 54.377 1.00133.93 ATOM 112 C ALA K 17 -11.454 49.448 55.183 1.00132.99 ATOM 113 O ALA K 17 -10.870 49.988 56.135 1.00134.99 ATOM 114 CB ALA K 17 -10.172 48.922 53.093 1.00132.47 ATOM 115 N VAL K 18 -12.698 49.777 54.832 1.00129.09 ATOM 116 CA VAL K 18 -13.426 50.804 55.571 1.00132.64 ATOM 117 C VAL K 18 -13.734 50.320 56.984 1.00134.37 ATOM 118 O VAL K 18 -13.639 51.084 57.955 1.00138.47 ATOM 119 CB VAL K 18 -14.700 51.203 54.800 1.00134.72 ATOM 120 CG1 VAL K 18 -15.768 51.729 55.744 1.00137.40 ATOM 121 CG2 VAL K 18 -14.365 52.242 53.739 1.00138.53 ATOM 122 N LEU K 19 -14.062 49.034 57.126 1.00132.08 ATOM 123 CA LEU K 19 -14.281 48.471 58.453 1.00130.37 ATOM 124 C LEU K 19 -13.008 48.524 59.289 1.00130.15 ATOM 125 O LEU K 19 -13.054 48.842 60.483 1.00134.99 ATOM 126 CB LEU K 19 -14.781 47.033 58.336 1.00124.67 ATOM 127 CG LEU K 19 -15.044 46.347 59.674 1.00122.95 ATOM 128 CD1 LEU K 19 -16.015 47.178 60.499 1.00127.60 ATOM 129 CD2 LEU K 19 -15.580 44.946 59.452 1.00121.31 ATOM 130 N LEU K 20 -11.863 48.201 58.681 1.00126.67 ATOM 131 CA LEU K 20 -10.600 48.249 59.408 1.00128.29 ATOM 132 C LEU K 20 -10.276 49.666 59.858 1.00132.37 ATOM 133 O LEU K 20 -9.837 49.874 60.995 1.00134.69 ATOM 134 CB LEU K 20 -9.465 47.698 58.545 1.00130.50 ATOM 135 CG LEU K 20 -9.436 46.198 58.256 1.00128.97 ATOM 136 CD1 LEU K 20 -8.119 45.809 57.592 1.00130.50 ATOM 137 CD2 LEU K 20 -9.653 45.399 59.529 1.00127.93 ATOM 138 N GLN K 21 -10.498 50.659 58.990 1.00128.85 ATOM 139 CA GLN K 21 -10.231 52.035 59.401 1.00133.62 ATOM 140 C GLN K 21 -11.175 52.461 60.519 1.00135.27 ATOM 141 O GLN K 21 -10.754 53.128 61.474 1.00140.60 ATOM 142 CB GLN K 21 -10.356 53.000 58.217 1.00139.10 ATOM 143 CG GLN K 21 -10.109 54.465 58.615 1.00147.34 ATOM 144 CD GLN K 21 -10.442 55.471 57.522 1.00151.17 ATOM 145 OE1 GLN K 21 -10.853 55.104 56.421 1.00150.48 ATOM 146 NE2 GLN K 21 -10.270 56.752 57.830 1.00154.11 ATOM 147 N LEU K 22 -12.447 52.058 60.433 1.00122.34 ATOM 148 CA LEU K 22 -13.406 52.389 61.483 1.00125.93 ATOM 149 C LEU K 22 -12.990 51.783 62.818 1.00132.65 ATOM 150 O LEU K 22 -12.992 52.462 63.852 1.00143.58 ATOM 151 CB LEU K 22 -14.802 51.910 61.080 1.00123.85 ATOM 152 CG LEU K 22 -15.968 52.340 61.973 1.00130.23 ATOM 153 CD1 LEU K 22 -16.159 53.849 61.918 1.00132.36 ATOM 154 CD2 LEU K 22 -17.249 51.624 61.574 1.00125.96 ATOM 155 N ILE K 23 -12.619 50.503 62.809 1.00125.15 ATOM 156 CA ILE K 23 -12.225 49.834 64.044 1.00124.44 ATOM 157 C ILE K 23 -10.943 50.444 64.598 1.00124.28 ATOM 158 O ILE K 23 -10.803 50.621 65.814 1.00133.04 ATOM 159 CB ILE K 23 -12.089 48.320 63.807 1.00120.84 ATOM 160 CG1 ILE K 23 -13.447 47.726 63.439 1.00121.61 ATOM 161 CG2 ILE K 23 -11.549 47.630 65.046 1.00122.49 ATOM 162 CD1 ILE K 23 -13.437 46.230 63.297 1.00118.66 ATOM 163 N ARG K 24 -9.996 50.792 63.722 1.00129.00 ATOM 164 CA ARG K 24 -8.745 51.383 64.189 1.00131.84 ATOM 165 C ARG K 24 -8.988 52.742 64.830 1.00141.18 ATOM 166 O ARG K 24 -8.440 53.037 65.899 1.00149.79 ATOM 167 CB ARG K 24 -7.755 51.506 63.026 1.00123.16 ATOM 168 CG ARG K 24 -6.363 51.990 63.431 1.00124.03 ATOM 169 CD ARG K 24 -5.357 51.893 62.285 1.00125.66 ATOM 170 NE ARG K 24 -5.042 50.513 61.922 1.00124.80 ATOM 171 CZ ARG K 24 -3.955 49.861 62.330 1.00129.98 ATOM 172 NH1 ARG K 24 -3.072 50.461 63.118 1.00136.56 ATOM 173 NH2 ARG K 24 -3.746 48.606 61.952 1.00127.19 ATOM 174 N GLY K 25 -9.830 53.572 64.212 1.00120.36 ATOM 175 CA GLY K 25 -10.151 54.853 64.815 1.00130.11 ATOM 176 C GLY K 25 -10.904 54.711 66.124 1.00144.97 ATOM 177 O GLY K 25 -10.658 55.460 67.076 1.00155.26 ATOM 178 N TRP K 26 -11.810 53.731 66.203 1.00120.93 ATOM 179 CA TRP K 26 -12.533 53.518 67.452 1.00133.92 ATOM 180 C TRP K 26 -11.595 53.070 68.565 1.00139.73 ATOM 181 O TRP K 26 -11.695 53.555 69.697 1.00148.51 ATOM 182 CB TRP K 26 -13.656 52.503 67.252 1.00132.26 ATOM 183 CG TRP K 26 -14.335 52.130 68.531 1.00140.93 ATOM 184 CD1 TRP K 26 -14.858 52.986 69.454 1.00145.73 ATOM 185 CD2 TRP K 26 -14.609 50.809 69.010 1.00135.83 ATOM 186 NE1 TRP K 26 -15.418 52.282 70.490 1.00142.88 ATOM 187 CE2 TRP K 26 -15.281 50.943 70.240 1.00136.44 ATOM 188 CE3 TRP K 26 -14.346 49.527 68.522 1.00129.16 ATOM 189 CZ2 TRP K 26 -15.693 49.843 70.990 1.00129.55 ATOM 190 CZ3 TRP K 26 -14.754 48.437 69.270 1.00125.23 ATOM 191 CH2 TRP K 26 -15.420 48.602 70.489 1.00124.65 ATOM 192 N LEU K 27 -10.668 52.160 68.264 1.00138.53 ATOM 193 CA LEU K 27 -9.709 51.745 69.282 1.00141.22 ATOM 194 C LEU K 27 -8.750 52.875 69.638 1.00140.53 ATOM 195 O LEU K 27 -8.252 52.928 70.769 1.00139.52 ATOM 196 CB LEU K 27 -8.939 50.499 68.833 1.00123.42 ATOM 197 CG LEU K 27 -9.570 49.118 69.084 1.00122.45 ATOM 198 CD1 LEU K 27 -10.948 48.964 68.462 1.00125.36 ATOM 199 CD2 LEU K 27 -8.648 47.998 68.617 1.00106.09 ATOM 200 N SER K 28 -8.484 53.789 68.702 1.00142.87 ATOM 201 CA SER K 28 -7.578 54.892 68.995 1.00144.54 ATOM 202 C SER K 28 -8.237 56.011 69.790 1.00160.79 ATOM 203 O SER K 28 -7.540 56.725 70.519 1.00164.97 ATOM 204 CB SER K 28 -7.016 55.466 67.692 1.00131.10 ATOM 205 OG SER K 28 -6.359 54.465 66.936 1.00119.10 ATOM 206 N SER K 29 -9.556 56.171 69.688 1.00138.70 ATOM 207 CA SER K 29 -10.245 57.276 70.345 1.00153.28 ATOM 208 C SER K 29 -11.151 56.833 71.488 1.00154.25 ATOM 209 O SER K 29 -11.908 57.655 72.014 1.00159.06 ATOM 210 CB SER K 29 -11.054 58.071 69.319 1.00144.79 ATOM 211 OG SER K 29 -12.058 57.262 68.736 1.00130.21 ATOM 212 N LYS K 30 -11.112 55.562 71.875 1.00137.61 ATOM 213 CA LYS K 30 -11.972 55.085 72.948 1.00141.58 ATOM 214 C LYS K 30 -11.266 55.229 74.291 1.00141.96 ATOM 215 O LYS K 30 -10.042 55.109 74.390 1.00142.19 ATOM 216 CB LYS K 30 -12.388 53.629 72.724 1.00138.71 ATOM 217 CG LYS K 30 -13.546 53.182 73.605 1.00139.10 ATOM 218 CD LYS K 30 -13.920 51.728 73.367 1.00134.95 ATOM 219 CE LYS K 30 -12.986 50.767 74.061 1.00131.08 ATOM 220 NZ LYS K 30 -13.120 50.865 75.541 1.00131.51 TER