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 J 1 221 UNP Q6DCU6 SGMR1_XENLA 1 221 SEQRES 1 F 34 SER VAL ASP THR MET ALA LEU TRP LEU GLY LEU ARG ALA SEQRES 2 F 34 VAL LEU VAL VAL ALA GLY LEU ALA VAL LEU LEU GLN LEU SEQRES 3 F 34 ILE ARG GLY TRP LEU SER SER LYS ATOM 1 N SER J -3 -31.567 -8.192 37.987 1.00118.72 ATOM 2 CA SER J -3 -30.166 -8.289 37.591 1.00116.34 ATOM 3 C SER J -3 -29.258 -7.774 38.703 1.00116.76 ATOM 4 O SER J -3 -28.533 -6.796 38.523 1.00116.69 ATOM 5 CB SER J -3 -29.915 -7.510 36.296 1.00115.69 ATOM 6 OG SER J -3 -29.896 -6.112 36.530 1.00117.55 ATOM 7 N VAL J -2 -29.312 -8.444 39.857 1.00107.67 ATOM 8 CA VAL J -2 -28.493 -8.044 40.999 1.00123.61 ATOM 9 C VAL J -2 -27.019 -8.341 40.737 1.00129.88 ATOM 10 O VAL J -2 -26.135 -7.592 41.172 1.00126.87 ATOM 11 CB VAL J -2 -29.000 -8.737 42.279 1.00131.98 ATOM 12 CG1 VAL J -2 -28.068 -8.468 43.455 1.00126.75 ATOM 13 CG2 VAL J -2 -30.421 -8.284 42.600 1.00124.59 ATOM 14 N ASP J -1 -26.730 -9.427 40.013 1.00128.20 ATOM 15 CA ASP J -1 -25.345 -9.753 39.688 1.00121.39 ATOM 16 C ASP J -1 -24.701 -8.675 38.822 1.00119.01 ATOM 17 O ASP J -1 -23.479 -8.493 38.866 1.00117.21 ATOM 18 CB ASP J -1 -25.271 -11.110 38.984 1.00122.79 ATOM 19 CG ASP J -1 -25.590 -12.270 39.911 1.00130.73 ATOM 20 OD1 ASP J -1 -25.523 -12.091 41.145 1.00134.91 ATOM 21 OD2 ASP J -1 -25.899 -13.368 39.402 1.00121.10 ATOM 22 N THR J 0 -25.502 -7.951 38.034 1.00131.45 ATOM 23 CA THR J 0 -24.963 -6.888 37.190 1.00125.53 ATOM 24 C THR J 0 -24.633 -5.640 38.002 1.00128.76 ATOM 25 O THR J 0 -23.604 -4.996 37.763 1.00122.49 ATOM 26 CB THR J 0 -25.950 -6.531 36.075 1.00120.56 ATOM 27 OG1 THR J 0 -27.026 -5.754 36.615 1.00123.12 ATOM 28 CG2 THR J 0 -26.513 -7.787 35.437 1.00120.52 ATOM 29 N MET J 1 -25.495 -5.274 38.955 1.00128.63 ATOM 30 CA MET J 1 -25.246 -4.065 39.733 1.00127.09 ATOM 31 C MET J 1 -24.082 -4.252 40.696 1.00134.46 ATOM 32 O MET J 1 -23.366 -3.290 40.996 1.00137.52 ATOM 33 CB MET J 1 -26.510 -3.655 40.485 1.00122.93 ATOM 34 CG MET J 1 -26.454 -2.250 41.062 1.00123.09 ATOM 35 SD MET J 1 -28.086 -1.596 41.467 1.00128.80 ATOM 36 CE MET J 1 -28.887 -1.683 39.864 1.00115.26 ATOM 37 N ALA J 2 -23.878 -5.477 41.183 1.00138.18 ATOM 38 CA ALA J 2 -22.715 -5.799 42.000 1.00131.61 ATOM 39 C ALA J 2 -21.443 -5.938 41.175 1.00126.87 ATOM 40 O ALA J 2 -20.343 -5.829 41.729 1.00124.15 ATOM 41 CB ALA J 2 -22.964 -7.093 42.780 1.00122.73 ATOM 42 N LEU J 3 -21.571 -6.199 39.872 1.00129.52 ATOM 43 CA LEU J 3 -20.399 -6.289 39.008 1.00127.36 ATOM 44 C LEU J 3 -19.737 -4.927 38.838 1.00131.83 ATOM 45 O LEU J 3 -18.504 -4.831 38.790 1.00129.74 ATOM 46 CB LEU J 3 -20.808 -6.869 37.652 1.00127.79 ATOM 47 CG LEU J 3 -19.733 -7.161 36.602 1.00126.02 ATOM 48 CD1 LEU J 3 -18.780 -8.227 37.110 1.00118.51 ATOM 49 CD2 LEU J 3 -20.361 -7.579 35.273 1.00114.75 ATOM 50 N TRP J 4 -20.543 -3.867 38.726 1.00140.74 ATOM 51 CA TRP J 4 -19.996 -2.516 38.656 1.00139.54 ATOM 52 C TRP J 4 -19.225 -2.180 39.931 1.00135.08 ATOM 53 O TRP J 4 -18.100 -1.668 39.873 1.00131.19 ATOM 54 CB TRP J 4 -21.120 -1.506 38.399 1.00135.31 ATOM 55 CG TRP J 4 -21.565 -1.425 36.940 1.00141.27 ATOM 56 CD1 TRP J 4 -22.703 -1.966 36.400 1.00141.31 ATOM 57 CD2 TRP J 4 -20.868 -0.800 35.848 1.00141.10 ATOM 58 NE1 TRP J 4 -22.767 -1.700 35.053 1.00139.19 ATOM 59 CE2 TRP J 4 -21.654 -0.989 34.687 1.00139.16 ATOM 60 CE3 TRP J 4 -19.664 -0.096 35.740 1.00133.47 ATOM 61 CZ2 TRP J 4 -21.272 -0.498 33.437 1.00129.87 ATOM 62 CZ3 TRP J 4 -19.288 0.390 34.497 1.00129.17 ATOM 63 CH2 TRP J 4 -20.089 0.186 33.363 1.00129.00 ATOM 64 N LEU J 5 -19.815 -2.475 41.098 1.00123.97 ATOM 65 CA LEU J 5 -19.176 -2.121 42.366 1.00128.06 ATOM 66 C LEU J 5 -17.865 -2.869 42.553 1.00125.19 ATOM 67 O LEU J 5 -16.849 -2.273 42.935 1.00123.09 ATOM 68 CB LEU J 5 -20.119 -2.421 43.534 1.00125.20 ATOM 69 CG LEU J 5 -19.793 -1.793 44.891 1.00121.50 ATOM 70 CD1 LEU J 5 -19.931 -0.271 44.856 1.00116.67 ATOM 71 CD2 LEU J 5 -20.670 -2.406 45.986 1.00114.96 ATOM 72 N GLY J 6 -17.868 -4.174 42.275 1.00120.73 ATOM 73 CA GLY J 6 -16.650 -4.950 42.415 1.00121.44 ATOM 74 C GLY J 6 -15.565 -4.483 41.466 1.00121.33 ATOM 75 O GLY J 6 -14.402 -4.347 41.853 1.00120.48 ATOM 76 N LEU J 7 -15.933 -4.216 40.214 1.00121.08 ATOM 77 CA LEU J 7 -14.936 -3.807 39.236 1.00121.05 ATOM 78 C LEU J 7 -14.480 -2.369 39.439 1.00121.84 ATOM 79 O LEU J 7 -13.323 -2.057 39.147 1.00123.29 ATOM 80 CB LEU J 7 -15.480 -3.979 37.816 1.00119.05 ATOM 81 CG LEU J 7 -14.538 -3.570 36.680 1.00115.61 ATOM 82 CD1 LEU J 7 -13.314 -4.465 36.664 1.00114.44 ATOM 83 CD2 LEU J 7 -15.246 -3.609 35.337 1.00114.33 ATOM 84 N ARG J 8 -15.345 -1.484 39.948 1.00124.03 ATOM 85 CA ARG J 8 -14.917 -0.104 40.166 1.00124.02 ATOM 86 C ARG J 8 -13.821 -0.023 41.224 1.00119.35 ATOM 87 O ARG J 8 -12.818 0.680 41.039 1.00120.47 ATOM 88 CB ARG J 8 -16.117 0.768 40.552 1.00128.23 ATOM 89 CG ARG J 8 -15.755 2.211 40.922 1.00131.99 ATOM 90 CD ARG J 8 -16.997 3.094 41.094 1.00135.36 ATOM 91 NE ARG J 8 -16.656 4.476 41.446 1.00136.12 ATOM 92 CZ ARG J 8 -17.542 5.460 41.584 1.00136.04 ATOM 93 NH1 ARG J 8 -18.835 5.225 41.402 1.00136.91 ATOM 94 NH2 ARG J 8 -17.136 6.683 41.904 1.00134.44 ATOM 95 N ALA J 9 -13.978 -0.760 42.327 1.00119.25 ATOM 96 CA ALA J 9 -12.961 -0.754 43.375 1.00117.16 ATOM 97 C ALA J 9 -11.660 -1.384 42.894 1.00113.58 ATOM 98 O ALA J 9 -10.571 -0.879 43.192 1.00114.71 ATOM 99 CB ALA J 9 -13.480 -1.478 44.617 1.00114.26 ATOM 100 N VAL J 10 -11.753 -2.491 42.156 1.00113.82 ATOM 101 CA VAL J 10 -10.556 -3.128 41.617 1.00109.81 ATOM 102 C VAL J 10 -9.853 -2.201 40.636 1.00111.56 ATOM 103 O VAL J 10 -8.618 -2.126 40.603 1.00113.95 ATOM 104 CB VAL J 10 -10.919 -4.476 40.970 1.00107.99 ATOM 105 CG1 VAL J 10 -9.713 -5.068 40.268 1.00106.78 ATOM 106 CG2 VAL J 10 -11.445 -5.436 42.024 1.00108.97 ATOM 107 N LEU J 11 -10.626 -1.468 39.830 1.00116.81 ATOM 108 CA LEU J 11 -10.026 -0.522 38.896 1.00116.57 ATOM 109 C LEU J 11 -9.329 0.609 39.634 1.00117.92 ATOM 110 O LEU J 11 -8.235 1.027 39.241 1.00118.02 ATOM 111 CB LEU J 11 -11.081 0.043 37.946 1.00113.52 ATOM 112 CG LEU J 11 -11.468 -0.834 36.756 1.00111.58 ATOM 113 CD1 LEU J 11 -12.405 -0.073 35.830 1.00110.50 ATOM 114 CD2 LEU J 11 -10.235 -1.333 36.014 1.00110.16 ATOM 115 N VAL J 12 -9.944 1.115 40.705 1.00109.70 ATOM 116 CA VAL J 12 -9.311 2.172 41.491 1.00110.08 ATOM 117 C VAL J 12 -8.016 1.667 42.113 1.00111.31 ATOM 118 O VAL J 12 -6.992 2.361 42.102 1.00113.23 ATOM 119 CB VAL J 12 -10.284 2.703 42.561 1.00108.64 ATOM 120 CG1 VAL J 12 -9.555 3.599 43.547 1.00108.25 ATOM 121 CG2 VAL J 12 -11.416 3.459 41.903 1.00107.68 ATOM 122 N VAL J 13 -8.036 0.452 42.661 1.00109.19 ATOM 123 CA VAL J 13 -6.832 -0.092 43.283 1.00108.81 ATOM 124 C VAL J 13 -5.728 -0.271 42.245 1.00107.40 ATOM 125 O VAL J 13 -4.569 0.092 42.481 1.00108.50 ATOM 126 CB VAL J 13 -7.151 -1.416 43.999 1.00110.61 ATOM 127 CG1 VAL J 13 -5.866 -2.066 44.504 1.00114.21 ATOM 128 CG2 VAL J 13 -8.160 -1.194 45.126 1.00110.08 ATOM 129 N ALA J 14 -6.077 -0.792 41.064 1.00110.98 ATOM 130 CA ALA J 14 -5.071 -1.012 40.029 1.00110.97 ATOM 131 C ALA J 14 -4.523 0.305 39.498 1.00112.58 ATOM 132 O ALA J 14 -3.315 0.432 39.268 1.00112.70 ATOM 133 CB ALA J 14 -5.664 -1.850 38.896 1.00102.89 ATOM 134 N GLY J 15 -5.386 1.305 39.322 1.00107.82 ATOM 135 CA GLY J 15 -4.919 2.596 38.852 1.00108.17 ATOM 136 C GLY J 15 -4.024 3.293 39.856 1.00108.92 ATOM 137 O GLY J 15 -2.992 3.861 39.490 1.00109.53 ATOM 138 N LEU J 16 -4.400 3.254 41.137 1.00109.55 ATOM 139 CA LEU J 16 -3.560 3.848 42.169 1.00106.68 ATOM 140 C LEU J 16 -2.224 3.127 42.276 1.00107.90 ATOM 141 O LEU J 16 -1.183 3.766 42.469 1.00110.87 ATOM 142 CB LEU J 16 -4.291 3.830 43.510 1.00106.11 ATOM 143 CG LEU J 16 -5.405 4.870 43.630 1.00104.96 ATOM 144 CD1 LEU J 16 -5.968 4.914 45.044 1.00105.57 ATOM 145 CD2 LEU J 16 -4.896 6.234 43.197 1.00102.93 ATOM 146 N ALA J 17 -2.228 1.798 42.137 1.00110.81 ATOM 147 CA ALA J 17 -0.973 1.052 42.170 1.00110.26 ATOM 148 C ALA J 17 -0.091 1.416 40.983 1.00107.69 ATOM 149 O ALA J 17 1.128 1.576 41.131 1.00109.08 ATOM 150 CB ALA J 17 -1.254 -0.450 42.190 1.00108.19 ATOM 151 N VAL J 18 -0.699 1.587 39.807 1.00112.17 ATOM 152 CA VAL J 18 0.062 1.950 38.617 1.00113.36 ATOM 153 C VAL J 18 0.627 3.361 38.751 1.00115.38 ATOM 154 O VAL J 18 1.778 3.618 38.378 1.00117.07 ATOM 155 CB VAL J 18 -0.827 1.771 37.365 1.00108.06 ATOM 156 CG1 VAL J 18 -1.004 3.073 36.592 1.00105.27 ATOM 157 CG2 VAL J 18 -0.244 0.689 36.457 1.00107.74 ATOM 158 N LEU J 19 -0.148 4.281 39.332 1.00108.08 ATOM 159 CA LEU J 19 0.341 5.639 39.565 1.00107.70 ATOM 160 C LEU J 19 1.501 5.654 40.555 1.00110.89 ATOM 161 O LEU J 19 2.502 6.351 40.341 1.00112.38 ATOM 162 CB LEU J 19 -0.805 6.523 40.065 1.00104.61 ATOM 163 CG LEU J 19 -0.559 7.996 40.399 1.00102.69 ATOM 164 CD1 LEU J 19 -1.758 8.845 40.004 1.00 98.14 ATOM 165 CD2 LEU J 19 -0.270 8.165 41.881 1.00104.64 ATOM 166 N LEU J 20 1.382 4.900 41.651 1.00103.99 ATOM 167 CA LEU J 20 2.461 4.855 42.632 1.00109.31 ATOM 168 C LEU J 20 3.718 4.235 42.040 1.00112.03 ATOM 169 O LEU J 20 4.828 4.723 42.280 1.00115.37 ATOM 170 CB LEU J 20 2.017 4.092 43.879 1.00110.26 ATOM 171 CG LEU J 20 0.972 4.782 44.758 1.00109.36 ATOM 172 CD1 LEU J 20 0.808 4.032 46.072 1.00110.07 ATOM 173 CD2 LEU J 20 1.332 6.240 45.001 1.00110.94 ATOM 174 N GLN J 21 3.571 3.159 41.261 1.00110.28 ATOM 175 CA GLN J 21 4.744 2.561 40.633 1.00117.66 ATOM 176 C GLN J 21 5.358 3.513 39.614 1.00118.12 ATOM 177 O GLN J 21 6.586 3.593 39.494 1.00122.98 ATOM 178 CB GLN J 21 4.389 1.214 39.998 1.00121.66 ATOM 179 CG GLN J 21 4.112 0.115 41.027 1.00126.94 ATOM 180 CD GLN J 21 3.857 -1.255 40.406 1.00131.85 ATOM 181 OE1 GLN J 21 2.714 -1.624 40.129 1.00132.41 ATOM 182 NE2 GLN J 21 4.927 -2.020 40.199 1.00135.48 ATOM 183 N LEU J 22 4.522 4.259 38.888 1.00116.07 ATOM 184 CA LEU J 22 5.027 5.252 37.947 1.00112.31 ATOM 185 C LEU J 22 5.839 6.325 38.664 1.00112.56 ATOM 186 O LEU J 22 6.946 6.677 38.235 1.00116.32 ATOM 187 CB LEU J 22 3.857 5.877 37.186 1.00106.94 ATOM 188 CG LEU J 22 4.200 6.809 36.025 1.00106.72 ATOM 189 CD1 LEU J 22 4.886 6.036 34.906 1.00109.29 ATOM 190 CD2 LEU J 22 2.948 7.495 35.516 1.00103.07 ATOM 191 N ILE J 23 5.307 6.850 39.770 1.00105.57 ATOM 192 CA ILE J 23 6.012 7.891 40.512 1.00105.91 ATOM 193 C ILE J 23 7.303 7.346 41.109 1.00111.50 ATOM 194 O ILE J 23 8.337 8.024 41.102 1.00114.89 ATOM 195 CB ILE J 23 5.101 8.498 41.594 1.00101.43 ATOM 196 CG1 ILE J 23 3.927 9.235 40.943 1.00 97.49 ATOM 197 CG2 ILE J 23 5.894 9.421 42.508 1.00103.29 ATOM 198 CD1 ILE J 23 3.041 9.970 41.922 1.00 94.72 ATOM 199 N ARG J 24 7.274 6.111 41.616 1.00108.05 ATOM 200 CA ARG J 24 8.476 5.530 42.204 1.00110.73 ATOM 201 C ARG J 24 9.555 5.324 41.148 1.00110.90 ATOM 202 O ARG J 24 10.731 5.628 41.384 1.00112.46 ATOM 203 CB ARG J 24 8.128 4.208 42.894 1.00114.32 ATOM 204 CG ARG J 24 9.269 3.583 43.683 1.00120.93 ATOM 205 CD ARG J 24 8.788 2.394 44.505 1.00122.59 ATOM 206 NE ARG J 24 8.163 1.377 43.662 1.00124.76 ATOM 207 CZ ARG J 24 7.632 0.244 44.113 1.00127.05 ATOM 208 NH1 ARG J 24 7.649 -0.030 45.411 1.00127.99 ATOM 209 NH2 ARG J 24 7.086 -0.618 43.264 1.00127.30 ATOM 210 N GLY J 25 9.169 4.834 39.967 1.00109.07 ATOM 211 CA GLY J 25 10.132 4.680 38.890 1.00111.35 ATOM 212 C GLY J 25 10.684 6.006 38.408 1.00108.46 ATOM 213 O GLY J 25 11.863 6.109 38.059 1.00111.23 ATOM 214 N TRP J 26 9.841 7.039 38.372 1.00105.16 ATOM 215 CA TRP J 26 10.340 8.358 38.010 1.00106.58 ATOM 216 C TRP J 26 11.331 8.872 39.044 1.00108.28 ATOM 217 O TRP J 26 12.369 9.441 38.687 1.00111.95 ATOM 218 CB TRP J 26 9.186 9.341 37.848 1.00102.76 ATOM 219 CG TRP J 26 9.653 10.749 37.671 1.00101.78 ATOM 220 CD1 TRP J 26 10.549 11.205 36.750 1.00103.85 ATOM 221 CD2 TRP J 26 9.246 11.888 38.435 1.00 98.79 ATOM 222 NE1 TRP J 26 10.729 12.559 36.895 1.00103.36 ATOM 223 CE2 TRP J 26 9.937 13.003 37.921 1.00 99.19 ATOM 224 CE3 TRP J 26 8.362 12.075 39.501 1.00 95.57 ATOM 225 CZ2 TRP J 26 9.771 14.285 38.435 1.00 99.51 ATOM 226 CZ3 TRP J 26 8.198 13.348 40.011 1.00 97.15 ATOM 227 CH2 TRP J 26 8.901 14.437 39.479 1.00 99.08 ATOM 228 N LEU J 27 11.038 8.664 40.330 1.00102.11 ATOM 229 CA LEU J 27 11.950 9.107 41.378 1.00105.11 ATOM 230 C LEU J 27 13.257 8.322 41.356 1.00109.29 ATOM 231 O LEU J 27 14.308 8.857 41.733 1.00108.70 ATOM 232 CB LEU J 27 11.275 8.980 42.746 1.00104.44 ATOM 233 CG LEU J 27 10.336 10.115 43.156 1.00102.44 ATOM 234 CD1 LEU J 27 9.784 9.894 44.557 1.00102.24 ATOM 235 CD2 LEU J 27 11.052 11.440 43.067 1.00103.65 ATOM 236 N SER J 28 13.218 7.066 40.907 1.00105.70 ATOM 237 CA SER J 28 14.421 6.247 40.845 1.00110.52 ATOM 238 C SER J 28 15.285 6.562 39.633 1.00114.20 ATOM 239 O SER J 28 16.489 6.285 39.660 1.00117.38 ATOM 240 CB SER J 28 14.047 4.763 40.827 1.00109.68 ATOM 241 OG SER J 28 13.285 4.443 39.675 1.00108.12 ATOM 242 N SER J 29 14.699 7.118 38.573 1.00113.45 ATOM 243 CA SER J 29 15.400 7.391 37.325 1.00113.72 ATOM 244 C SER J 29 15.572 8.879 37.051 1.00111.98 ATOM 245 O SER J 29 15.972 9.253 35.944 1.00114.25 ATOM 246 CB SER J 29 14.663 6.733 36.159 1.00113.73 ATOM 247 OG SER J 29 13.361 7.279 36.024 1.00109.13 ATOM 248 N LYS J 30 15.270 9.735 38.019 1.00111.41 ATOM 249 CA LYS J 30 15.360 11.173 37.827 1.00107.69 ATOM 250 C LYS J 30 16.763 11.675 38.142 1.00106.78 ATOM 251 O LYS J 30 17.474 11.113 38.979 1.00108.77 ATOM 252 CB LYS J 30 14.349 11.900 38.717 1.00104.48 ATOM 253 CG LYS J 30 14.168 13.368 38.390 1.00 99.27 ATOM 254 CD LYS J 30 13.200 14.026 39.348 1.00 97.40 ATOM 255 CE LYS J 30 13.120 15.519 39.093 1.00 98.68 ATOM 256 NZ LYS J 30 14.417 16.193 39.360 1.00 98.21 TER