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 A 1 221 UNP Q6DCU6 SGMR1_XENLA 1 221 SEQRES 1 A 34 SER VAL ASP THR MET ALA LEU TRP LEU GLY LEU ARG ALA SEQRES 2 A 34 VAL LEU VAL VAL ALA GLY LEU ALA VAL LEU LEU GLN LEU SEQRES 3 A 34 ILE ARG GLY TRP LEU SER SER LYS ATOM 1 N SER A -3 -4.681 17.995 54.081 1.00120.61 ATOM 2 CA SER A -3 -5.582 16.849 54.122 1.00118.91 ATOM 3 C SER A -3 -5.873 16.323 52.721 1.00114.37 ATOM 4 O SER A -3 -6.780 15.512 52.533 1.00111.94 ATOM 5 CB SER A -3 -6.894 17.219 54.811 1.00114.49 ATOM 6 OG SER A -3 -7.749 17.909 53.917 1.00107.37 ATOM 7 N VAL A -2 -5.110 16.803 51.737 1.00112.22 ATOM 8 CA VAL A -2 -5.262 16.307 50.371 1.00122.60 ATOM 9 C VAL A -2 -4.786 14.863 50.278 1.00134.67 ATOM 10 O VAL A -2 -5.371 14.044 49.557 1.00127.95 ATOM 11 CB VAL A -2 -4.507 17.217 49.383 1.00126.10 ATOM 12 CG1 VAL A -2 -4.729 16.751 47.949 1.00114.45 ATOM 13 CG2 VAL A -2 -4.933 18.670 49.556 1.00112.88 ATOM 14 N ASP A -1 -3.720 14.527 51.009 1.00128.96 ATOM 15 CA ASP A -1 -3.220 13.156 51.012 1.00123.62 ATOM 16 C ASP A -1 -4.181 12.223 51.746 1.00123.30 ATOM 17 O ASP A -1 -4.362 11.069 51.342 1.00119.97 ATOM 18 CB ASP A -1 -1.824 13.109 51.642 1.00125.96 ATOM 19 CG ASP A -1 -0.863 14.140 51.043 1.00132.28 ATOM 20 OD1 ASP A -1 -0.944 14.419 49.826 1.00132.76 ATOM 21 OD2 ASP A -1 -0.020 14.672 51.796 1.00124.34 ATOM 22 N THR A 0 -4.814 12.711 52.822 1.00132.32 ATOM 23 CA THR A 0 -5.786 11.918 53.574 1.00127.00 ATOM 24 C THR A 0 -7.120 11.802 52.845 1.00122.79 ATOM 25 O THR A 0 -7.802 10.778 52.970 1.00115.24 ATOM 26 CB THR A 0 -6.021 12.527 54.960 1.00122.92 ATOM 27 OG1 THR A 0 -6.937 13.624 54.854 1.00119.45 ATOM 28 CG2 THR A 0 -4.714 13.031 55.552 1.00124.44 ATOM 29 N MET A 1 -7.519 12.847 52.110 1.00138.80 ATOM 30 CA MET A 1 -8.697 12.757 51.252 1.00128.32 ATOM 31 C MET A 1 -8.523 11.680 50.191 1.00135.27 ATOM 32 O MET A 1 -9.496 11.021 49.803 1.00133.50 ATOM 33 CB MET A 1 -8.966 14.121 50.607 1.00116.54 ATOM 34 CG MET A 1 -10.094 14.164 49.582 1.00107.13 ATOM 35 SD MET A 1 -10.370 15.836 48.946 1.00103.65 ATOM 36 CE MET A 1 -11.097 16.641 50.375 1.00 91.23 ATOM 37 N ALA A 2 -7.290 11.485 49.715 1.00135.29 ATOM 38 CA ALA A 2 -6.990 10.397 48.797 1.00127.36 ATOM 39 C ALA A 2 -6.747 9.076 49.516 1.00129.02 ATOM 40 O ALA A 2 -6.858 8.017 48.890 1.00122.91 ATOM 41 CB ALA A 2 -5.774 10.755 47.941 1.00116.70 ATOM 42 N LEU A 3 -6.397 9.113 50.805 1.00131.32 ATOM 43 CA LEU A 3 -6.225 7.873 51.555 1.00129.30 ATOM 44 C LEU A 3 -7.565 7.175 51.758 1.00132.45 ATOM 45 O LEU A 3 -7.633 5.941 51.756 1.00128.25 ATOM 46 CB LEU A 3 -5.524 8.150 52.889 1.00132.80 ATOM 47 CG LEU A 3 -5.119 6.966 53.778 1.00130.71 ATOM 48 CD1 LEU A 3 -3.929 7.350 54.641 1.00124.80 ATOM 49 CD2 LEU A 3 -6.263 6.483 54.667 1.00120.84 ATOM 50 N TRP A 4 -8.634 7.950 51.975 1.00148.99 ATOM 51 CA TRP A 4 -9.978 7.378 52.024 1.00141.55 ATOM 52 C TRP A 4 -10.328 6.680 50.716 1.00133.45 ATOM 53 O TRP A 4 -10.852 5.560 50.720 1.00128.39 ATOM 54 CB TRP A 4 -11.018 8.456 52.349 1.00131.46 ATOM 55 CG TRP A 4 -11.499 8.450 53.777 1.00138.13 ATOM 56 CD1 TRP A 4 -11.103 9.279 54.789 1.00140.42 ATOM 57 CD2 TRP A 4 -12.504 7.589 54.335 1.00136.59 ATOM 58 NE1 TRP A 4 -11.783 8.972 55.946 1.00138.27 ATOM 59 CE2 TRP A 4 -12.649 7.940 55.693 1.00136.44 ATOM 60 CE3 TRP A 4 -13.286 6.549 53.818 1.00126.97 ATOM 61 CZ2 TRP A 4 -13.545 7.289 56.541 1.00127.72 ATOM 62 CZ3 TRP A 4 -14.175 5.904 54.662 1.00123.18 ATOM 63 CH2 TRP A 4 -14.297 6.276 56.008 1.00125.35 ATOM 64 N LEU A 5 -10.051 7.331 49.583 1.00137.11 ATOM 65 CA LEU A 5 -10.436 6.756 48.298 1.00134.97 ATOM 66 C LEU A 5 -9.710 5.438 48.056 1.00136.06 ATOM 67 O LEU A 5 -10.323 4.449 47.631 1.00130.85 ATOM 68 CB LEU A 5 -10.137 7.749 47.173 1.00125.58 ATOM 69 CG LEU A 5 -10.815 9.119 47.260 1.00117.00 ATOM 70 CD1 LEU A 5 -10.320 10.046 46.150 1.00108.27 ATOM 71 CD2 LEU A 5 -12.330 8.984 47.230 1.00102.43 ATOM 72 N GLY A 6 -8.405 5.408 48.329 1.00130.85 ATOM 73 CA GLY A 6 -7.647 4.179 48.166 1.00131.11 ATOM 74 C GLY A 6 -8.077 3.087 49.129 1.00126.08 ATOM 75 O GLY A 6 -8.216 1.924 48.743 1.00121.59 ATOM 76 N LEU A 7 -8.280 3.443 50.399 1.00127.28 ATOM 77 CA LEU A 7 -8.637 2.446 51.400 1.00127.84 ATOM 78 C LEU A 7 -10.090 2.000 51.285 1.00126.36 ATOM 79 O LEU A 7 -10.401 0.854 51.624 1.00126.93 ATOM 80 CB LEU A 7 -8.356 2.990 52.805 1.00129.72 ATOM 81 CG LEU A 7 -8.672 2.101 54.014 1.00127.29 ATOM 82 CD1 LEU A 7 -7.801 0.855 54.014 1.00125.50 ATOM 83 CD2 LEU A 7 -8.493 2.874 55.312 1.00130.02 ATOM 84 N ARG A 8 -10.992 2.870 50.819 1.00135.78 ATOM 85 CA ARG A 8 -12.383 2.450 50.654 1.00131.06 ATOM 86 C ARG A 8 -12.506 1.367 49.587 1.00124.57 ATOM 87 O ARG A 8 -13.249 0.394 49.764 1.00123.88 ATOM 88 CB ARG A 8 -13.265 3.657 50.326 1.00129.46 ATOM 89 CG ARG A 8 -14.722 3.324 50.035 1.00125.74 ATOM 90 CD ARG A 8 -15.564 4.592 49.933 1.00122.08 ATOM 91 NE ARG A 8 -15.373 5.281 48.658 1.00119.19 ATOM 92 CZ ARG A 8 -16.285 5.337 47.690 1.00111.88 ATOM 93 NH1 ARG A 8 -17.466 4.748 47.849 1.00110.55 ATOM 94 NH2 ARG A 8 -16.016 5.986 46.562 1.00110.01 ATOM 95 N ALA A 9 -11.776 1.510 48.476 1.00127.87 ATOM 96 CA ALA A 9 -11.810 0.491 47.430 1.00120.91 ATOM 97 C ALA A 9 -11.215 -0.823 47.918 1.00118.13 ATOM 98 O ALA A 9 -11.753 -1.900 47.634 1.00117.12 ATOM 99 CB ALA A 9 -11.067 0.984 46.188 1.00112.39 ATOM 100 N VAL A 10 -10.105 -0.752 48.658 1.00119.08 ATOM 101 CA VAL A 10 -9.501 -1.958 49.219 1.00115.72 ATOM 102 C VAL A 10 -10.460 -2.626 50.194 1.00119.28 ATOM 103 O VAL A 10 -10.565 -3.857 50.239 1.00120.87 ATOM 104 CB VAL A 10 -8.157 -1.617 49.889 1.00116.26 ATOM 105 CG1 VAL A 10 -7.597 -2.828 50.621 1.00115.78 ATOM 106 CG2 VAL A 10 -7.161 -1.114 48.854 1.00114.79 ATOM 107 N LEU A 11 -11.184 -1.825 50.979 1.00120.27 ATOM 108 CA LEU A 11 -12.160 -2.379 51.911 1.00120.71 ATOM 109 C LEU A 11 -13.308 -3.052 51.174 1.00118.91 ATOM 110 O LEU A 11 -13.774 -4.115 51.590 1.00119.01 ATOM 111 CB LEU A 11 -12.686 -1.286 52.842 1.00118.97 ATOM 112 CG LEU A 11 -11.791 -0.938 54.033 1.00120.94 ATOM 113 CD1 LEU A 11 -12.476 0.074 54.934 1.00120.83 ATOM 114 CD2 LEU A 11 -11.427 -2.189 54.812 1.00121.28 ATOM 115 N VAL A 12 -13.780 -2.449 50.081 1.00118.98 ATOM 116 CA VAL A 12 -14.845 -3.072 49.296 1.00115.60 ATOM 117 C VAL A 12 -14.368 -4.399 48.716 1.00116.69 ATOM 118 O VAL A 12 -15.086 -5.406 48.752 1.00117.69 ATOM 119 CB VAL A 12 -15.337 -2.113 48.194 1.00109.91 ATOM 120 CG1 VAL A 12 -16.251 -2.838 47.212 1.00104.14 ATOM 121 CG2 VAL A 12 -16.063 -0.924 48.805 1.00105.50 ATOM 122 N VAL A 13 -13.147 -4.425 48.178 1.00112.60 ATOM 123 CA VAL A 13 -12.620 -5.665 47.611 1.00109.96 ATOM 124 C VAL A 13 -12.464 -6.728 48.694 1.00111.77 ATOM 125 O VAL A 13 -12.836 -7.892 48.498 1.00112.01 ATOM 126 CB VAL A 13 -11.294 -5.399 46.874 1.00109.40 ATOM 127 CG1 VAL A 13 -10.641 -6.713 46.458 1.00111.13 ATOM 128 CG2 VAL A 13 -11.535 -4.503 45.665 1.00103.74 ATOM 129 N ALA A 14 -11.955 -6.340 49.869 1.00107.30 ATOM 130 CA ALA A 14 -11.762 -7.305 50.948 1.00109.65 ATOM 131 C ALA A 14 -13.093 -7.823 51.477 1.00111.93 ATOM 132 O ALA A 14 -13.227 -9.016 51.770 1.00112.61 ATOM 133 CB ALA A 14 -10.945 -6.672 52.073 1.00104.37 ATOM 134 N GLY A 15 -14.090 -6.947 51.592 1.00113.77 ATOM 135 CA GLY A 15 -15.399 -7.381 52.048 1.00113.40 ATOM 136 C GLY A 15 -16.081 -8.306 51.061 1.00111.54 ATOM 137 O GLY A 15 -16.683 -9.310 51.454 1.00112.38 ATOM 138 N LEU A 16 -15.998 -7.986 49.767 1.00114.56 ATOM 139 CA LEU A 16 -16.573 -8.873 48.763 1.00109.13 ATOM 140 C LEU A 16 -15.869 -10.225 48.756 1.00111.66 ATOM 141 O LEU A 16 -16.521 -11.272 48.647 1.00114.23 ATOM 142 CB LEU A 16 -16.493 -8.223 47.382 1.00105.22 ATOM 143 CG LEU A 16 -17.490 -7.105 47.091 1.00100.95 ATOM 144 CD1 LEU A 16 -17.405 -6.683 45.629 1.00 95.83 ATOM 145 CD2 LEU A 16 -18.901 -7.546 47.455 1.00 94.76 ATOM 146 N ALA A 17 -14.541 -10.226 48.911 1.00108.50 ATOM 147 CA ALA A 17 -13.807 -11.487 48.953 1.00108.61 ATOM 148 C ALA A 17 -14.178 -12.300 50.184 1.00109.39 ATOM 149 O ALA A 17 -14.342 -13.524 50.103 1.00111.13 ATOM 150 CB ALA A 17 -12.303 -11.223 48.920 1.00106.42 ATOM 151 N VAL A 18 -14.342 -11.632 51.327 1.00108.55 ATOM 152 CA VAL A 18 -14.697 -12.331 52.556 1.00112.23 ATOM 153 C VAL A 18 -16.114 -12.892 52.467 1.00113.04 ATOM 154 O VAL A 18 -16.377 -14.012 52.918 1.00115.94 ATOM 155 CB VAL A 18 -14.496 -11.390 53.763 1.00109.08 ATOM 156 CG1 VAL A 18 -15.786 -11.179 54.544 1.00106.33 ATOM 157 CG2 VAL A 18 -13.408 -11.939 54.675 1.00111.58 ATOM 158 N LEU A 19 -17.036 -12.148 51.853 1.00109.28 ATOM 159 CA LEU A 19 -18.391 -12.658 51.659 1.00106.54 ATOM 160 C LEU A 19 -18.405 -13.864 50.726 1.00109.23 ATOM 161 O LEU A 19 -19.099 -14.855 50.989 1.00110.75 ATOM 162 CB LEU A 19 -19.295 -11.545 51.123 1.00 99.35 ATOM 163 CG LEU A 19 -20.762 -11.868 50.836 1.00 93.00 ATOM 164 CD1 LEU A 19 -21.649 -10.698 51.212 1.00 85.19 ATOM 165 CD2 LEU A 19 -20.943 -12.202 49.366 1.00 91.39 ATOM 166 N LEU A 20 -17.653 -13.797 49.625 1.00100.57 ATOM 167 CA LEU A 20 -17.612 -14.927 48.705 1.00105.00 ATOM 168 C LEU A 20 -17.001 -16.152 49.372 1.00110.93 ATOM 169 O LEU A 20 -17.511 -17.267 49.221 1.00114.67 ATOM 170 CB LEU A 20 -16.831 -14.553 47.445 1.00102.52 ATOM 171 CG LEU A 20 -17.479 -13.536 46.498 1.00 97.31 ATOM 172 CD1 LEU A 20 -16.697 -13.450 45.195 1.00 92.36 ATOM 173 CD2 LEU A 20 -18.943 -13.860 46.232 1.00 97.57 ATOM 174 N GLN A 21 -15.923 -15.961 50.139 1.00105.78 ATOM 175 CA GLN A 21 -15.307 -17.087 50.836 1.00116.01 ATOM 176 C GLN A 21 -16.242 -17.652 51.900 1.00118.37 ATOM 177 O GLN A 21 -16.297 -18.871 52.101 1.00124.92 ATOM 178 CB GLN A 21 -13.970 -16.665 51.447 1.00121.30 ATOM 179 CG GLN A 21 -12.876 -16.400 50.417 1.00124.11 ATOM 180 CD GLN A 21 -11.532 -16.070 51.047 1.00130.16 ATOM 181 OE1 GLN A 21 -11.212 -14.904 51.282 1.00130.34 ATOM 182 NE2 GLN A 21 -10.734 -17.100 51.313 1.00135.32 ATOM 183 N LEU A 22 -16.986 -16.780 52.585 1.00119.13 ATOM 184 CA LEU A 22 -17.961 -17.227 53.574 1.00115.85 ATOM 185 C LEU A 22 -19.050 -18.079 52.927 1.00114.18 ATOM 186 O LEU A 22 -19.400 -19.153 53.435 1.00119.09 ATOM 187 CB LEU A 22 -18.558 -16.008 54.281 1.00109.37 ATOM 188 CG LEU A 22 -19.450 -16.241 55.499 1.00109.40 ATOM 189 CD1 LEU A 22 -18.633 -16.841 56.633 1.00115.85 ATOM 190 CD2 LEU A 22 -20.112 -14.945 55.940 1.00103.94 ATOM 191 N ILE A 23 -19.596 -17.615 51.798 1.00114.06 ATOM 192 CA ILE A 23 -20.646 -18.370 51.115 1.00111.88 ATOM 193 C ILE A 23 -20.100 -19.694 50.590 1.00120.22 ATOM 194 O ILE A 23 -20.775 -20.729 50.660 1.00123.58 ATOM 195 CB ILE A 23 -21.277 -17.535 49.984 1.00102.67 ATOM 196 CG1 ILE A 23 -22.024 -16.323 50.546 1.00 95.50 ATOM 197 CG2 ILE A 23 -22.220 -18.387 49.146 1.00100.92 ATOM 198 CD1 ILE A 23 -22.781 -15.529 49.487 1.00 86.59 ATOM 199 N ARG A 24 -18.871 -19.690 50.067 1.00111.12 ATOM 200 CA ARG A 24 -18.282 -20.922 49.549 1.00115.35 ATOM 201 C ARG A 24 -18.058 -21.931 50.671 1.00119.44 ATOM 202 O ARG A 24 -18.341 -23.126 50.508 1.00122.47 ATOM 203 CB ARG A 24 -16.970 -20.599 48.824 1.00117.52 ATOM 204 CG ARG A 24 -16.318 -21.761 48.081 1.00123.77 ATOM 205 CD ARG A 24 -15.134 -21.292 47.227 1.00122.11 ATOM 206 NE ARG A 24 -14.117 -20.609 48.030 1.00126.11 ATOM 207 CZ ARG A 24 -12.995 -20.080 47.546 1.00125.98 ATOM 208 NH1 ARG A 24 -12.726 -20.153 46.249 1.00122.32 ATOM 209 NH2 ARG A 24 -12.134 -19.479 48.361 1.00127.95 ATOM 210 N GLY A 25 -17.568 -21.466 51.823 1.00119.15 ATOM 211 CA GLY A 25 -17.400 -22.355 52.960 1.00124.34 ATOM 212 C GLY A 25 -18.719 -22.885 53.487 1.00120.49 ATOM 213 O GLY A 25 -18.806 -24.038 53.921 1.00125.19 ATOM 214 N TRP A 26 -19.761 -22.051 53.470 1.00124.75 ATOM 215 CA TRP A 26 -21.080 -22.519 53.883 1.00123.70 ATOM 216 C TRP A 26 -21.603 -23.587 52.929 1.00124.73 ATOM 217 O TRP A 26 -22.175 -24.593 53.365 1.00128.26 ATOM 218 CB TRP A 26 -22.052 -21.341 53.959 1.00115.68 ATOM 219 CG TRP A 26 -23.469 -21.738 54.230 1.00110.86 ATOM 220 CD1 TRP A 26 -23.921 -22.499 55.268 1.00113.36 ATOM 221 CD2 TRP A 26 -24.621 -21.396 53.452 1.00102.33 ATOM 222 NE1 TRP A 26 -25.285 -22.652 55.185 1.00108.03 ATOM 223 CE2 TRP A 26 -25.739 -21.985 54.079 1.00 99.94 ATOM 224 CE3 TRP A 26 -24.817 -20.649 52.286 1.00 94.36 ATOM 225 CZ2 TRP A 26 -27.034 -21.850 53.579 1.00 90.81 ATOM 226 CZ3 TRP A 26 -26.105 -20.517 51.791 1.00 87.35 ATOM 227 CH2 TRP A 26 -27.196 -21.115 52.438 1.00 86.68 ATOM 228 N LEU A 27 -21.405 -23.388 51.624 1.00112.92 ATOM 229 CA LEU A 27 -21.853 -24.362 50.635 1.00115.45 ATOM 230 C LEU A 27 -21.060 -25.661 50.712 1.00125.21 ATOM 231 O LEU A 27 -21.583 -26.725 50.364 1.00124.59 ATOM 232 CB LEU A 27 -21.737 -23.767 49.235 1.00112.74 ATOM 233 CG LEU A 27 -22.877 -22.841 48.823 1.00103.02 ATOM 234 CD1 LEU A 27 -22.673 -22.362 47.397 1.00 99.37 ATOM 235 CD2 LEU A 27 -24.217 -23.531 48.990 1.00 99.03 ATOM 236 N SER A 28 -19.799 -25.595 51.138 1.00116.31 ATOM 237 CA SER A 28 -18.987 -26.801 51.242 1.00125.35 ATOM 238 C SER A 28 -19.272 -27.601 52.506 1.00131.00 ATOM 239 O SER A 28 -19.031 -28.813 52.521 1.00136.86 ATOM 240 CB SER A 28 -17.502 -26.443 51.201 1.00125.40 ATOM 241 OG SER A 28 -17.145 -25.632 52.308 1.00124.26 ATOM 242 N SER A 29 -19.777 -26.958 53.558 1.00125.92 ATOM 243 CA SER A 29 -20.007 -27.603 54.845 1.00126.54 ATOM 244 C SER A 29 -21.486 -27.753 55.180 1.00123.25 ATOM 245 O SER A 29 -21.820 -28.098 56.318 1.00126.32 ATOM 246 CB SER A 29 -19.298 -26.829 55.958 1.00131.12 ATOM 247 OG SER A 29 -19.822 -25.518 56.077 1.00129.66 ATOM 248 N LYS A 30 -22.377 -27.494 54.230 1.00120.62 ATOM 249 CA LYS A 30 -23.807 -27.561 54.488 1.00117.59 ATOM 250 C LYS A 30 -24.334 -28.975 54.283 1.00115.60 ATOM 251 O LYS A 30 -23.843 -29.728 53.439 1.00115.85 ATOM 252 CB LYS A 30 -24.564 -26.597 53.568 1.00114.15 ATOM 253 CG LYS A 30 -26.027 -26.391 53.931 1.00109.94 ATOM 254 CD LYS A 30 -26.714 -25.465 52.939 1.00107.69 ATOM 255 CE LYS A 30 -28.217 -25.348 53.203 1.00109.77 ATOM 256 NZ LYS A 30 -28.972 -26.624 53.014 1.00108.47 TER