HEADER MEMBRANE PROTEIN 31-DEC-69 7W2D TITLE The closed conformation of the sigma-1 receptor from Xenopus laevis TITLE 2 complexed with S1RA COMPND MOL_ID: 1; COMPND 2 MOLECULE: Sigma non-opioid intracellular receptor 1; COMPND 3 CHAIN: A, C, E, B, D, F, G, H, I, J, K, L; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.47 ANGSTORMS DBREF 7W2D A 1 221 UNP Q6DCU6 SGMR1_XENLA 1 221 SEQRES 1 A 28 LEU TRP LEU GLY LEU ARG ALA VAL LEU VAL VAL ALA GLY SEQRES 2 A 28 LEU ALA VAL LEU LEU GLN LEU ILE ARG GLY TRP LEU SER SEQRES 3 A 28 SER LYS ATOM 1 N LEU A 7 -35.534 -42.320 -3.653 1.00122.04 ATOM 2 CA LEU A 7 -35.354 -42.465 -2.213 1.00122.52 ATOM 3 C LEU A 7 -34.725 -43.809 -1.879 1.00123.17 ATOM 4 O LEU A 7 -34.832 -44.292 -0.750 1.00124.36 ATOM 5 CB LEU A 7 -36.690 -42.315 -1.484 1.00121.65 ATOM 6 CG LEU A 7 -37.346 -40.939 -1.583 1.00123.22 ATOM 7 CD1 LEU A 7 -38.709 -40.951 -0.918 1.00122.69 ATOM 8 CD2 LEU A 7 -36.450 -39.885 -0.959 1.00116.30 ATOM 9 N TRP A 8 -34.072 -44.415 -2.873 1.00127.17 ATOM 10 CA TRP A 8 -33.418 -45.697 -2.639 1.00125.56 ATOM 11 C TRP A 8 -32.141 -45.527 -1.827 1.00130.59 ATOM 12 O TRP A 8 -31.830 -46.367 -0.974 1.00131.30 ATOM 13 CB TRP A 8 -33.113 -46.394 -3.963 1.00119.87 ATOM 14 CG TRP A 8 -32.203 -47.576 -3.798 1.00122.14 ATOM 15 CD1 TRP A 8 -32.563 -48.848 -3.460 1.00124.39 ATOM 16 CD2 TRP A 8 -30.778 -47.590 -3.954 1.00123.36 ATOM 17 NE1 TRP A 8 -31.452 -49.655 -3.401 1.00124.09 ATOM 18 CE2 TRP A 8 -30.344 -48.907 -3.700 1.00124.90 ATOM 19 CE3 TRP A 8 -29.829 -46.619 -4.285 1.00123.12 ATOM 20 CZ2 TRP A 8 -29.002 -49.276 -3.768 1.00122.38 ATOM 21 CZ3 TRP A 8 -28.497 -46.987 -4.352 1.00124.20 ATOM 22 CH2 TRP A 8 -28.096 -48.304 -4.095 1.00124.03 ATOM 23 N LEU A 9 -31.381 -44.458 -2.077 1.00133.29 ATOM 24 CA LEU A 9 -30.161 -44.272 -1.306 1.00130.07 ATOM 25 C LEU A 9 -30.421 -43.645 0.057 1.00133.99 ATOM 26 O LEU A 9 -29.486 -43.539 0.862 1.00136.16 ATOM 27 CB LEU A 9 -29.174 -43.401 -2.086 1.00133.42 ATOM 28 CG LEU A 9 -27.698 -43.514 -1.700 1.00137.56 ATOM 29 CD1 LEU A 9 -27.288 -44.974 -1.575 1.00136.24 ATOM 30 CD2 LEU A 9 -26.814 -42.774 -2.691 1.00134.27 ATOM 31 N GLY A 10 -31.671 -43.267 0.356 1.00136.62 ATOM 32 CA GLY A 10 -31.996 -42.854 1.708 1.00132.65 ATOM 33 C GLY A 10 -32.211 -44.032 2.622 1.00127.14 ATOM 34 O GLY A 10 -32.201 -43.875 3.849 1.00126.04 ATOM 35 N LEU A 11 -32.382 -45.216 2.031 1.00128.96 ATOM 36 CA LEU A 11 -32.514 -46.436 2.806 1.00130.98 ATOM 37 C LEU A 11 -31.237 -46.707 3.583 1.00130.50 ATOM 38 O LEU A 11 -31.289 -47.157 4.727 1.00124.60 ATOM 39 CB LEU A 11 -32.871 -47.600 1.883 1.00129.02 ATOM 40 CG LEU A 11 -34.146 -47.391 1.059 1.00126.41 ATOM 41 CD1 LEU A 11 -34.459 -48.620 0.222 1.00127.32 ATOM 42 CD2 LEU A 11 -35.327 -47.033 1.955 1.00116.02 ATOM 43 N ARG A 12 -30.078 -46.456 2.968 1.00124.52 ATOM 44 CA ARG A 12 -28.813 -46.666 3.666 1.00123.31 ATOM 45 C ARG A 12 -28.696 -45.757 4.886 1.00123.62 ATOM 46 O ARG A 12 -28.319 -46.213 5.971 1.00120.22 ATOM 47 CB ARG A 12 -27.642 -46.438 2.709 1.00123.10 ATOM 48 CG ARG A 12 -26.285 -46.856 3.267 1.00131.16 ATOM 49 CD ARG A 12 -25.151 -46.465 2.327 1.00137.81 ATOM 50 NE ARG A 12 -24.542 -45.182 2.669 1.00145.41 ATOM 51 CZ ARG A 12 -23.410 -45.059 3.355 1.00146.80 ATOM 52 NH1 ARG A 12 -22.763 -46.143 3.761 1.00138.14 ATOM 53 NH2 ARG A 12 -22.917 -43.858 3.628 1.00147.50 ATOM 54 N ALA A 13 -29.044 -44.476 4.738 1.00123.72 ATOM 55 CA ALA A 13 -28.952 -43.555 5.869 1.00121.42 ATOM 56 C ALA A 13 -29.957 -43.911 6.957 1.00120.06 ATOM 57 O ALA A 13 -29.633 -43.863 8.153 1.00123.94 ATOM 58 CB ALA A 13 -29.162 -42.118 5.395 1.00119.72 ATOM 59 N VAL A 14 -31.177 -44.290 6.564 1.00115.86 ATOM 60 CA VAL A 14 -32.187 -44.663 7.549 1.00114.02 ATOM 61 C VAL A 14 -31.780 -45.940 8.274 1.00113.10 ATOM 62 O VAL A 14 -31.949 -46.058 9.493 1.00109.90 ATOM 63 CB VAL A 14 -33.565 -44.799 6.877 1.00115.91 ATOM 64 CG1 VAL A 14 -34.555 -45.467 7.819 1.00118.29 ATOM 65 CG2 VAL A 14 -34.076 -43.433 6.447 1.00113.52 ATOM 66 N LEU A 15 -31.235 -46.913 7.541 1.00114.49 ATOM 67 CA LEU A 15 -30.741 -48.137 8.159 1.00115.30 ATOM 68 C LEU A 15 -29.589 -47.844 9.110 1.00113.90 ATOM 69 O LEU A 15 -29.475 -48.474 10.165 1.00114.53 ATOM 70 CB LEU A 15 -30.315 -49.139 7.084 1.00120.19 ATOM 71 CG LEU A 15 -31.437 -49.843 6.316 1.00117.34 ATOM 72 CD1 LEU A 15 -30.871 -50.889 5.365 1.00116.79 ATOM 73 CD2 LEU A 15 -32.448 -50.465 7.267 1.00109.57 ATOM 74 N VAL A 16 -28.716 -46.901 8.749 1.00112.87 ATOM 75 CA VAL A 16 -27.601 -46.550 9.625 1.00111.35 ATOM 76 C VAL A 16 -28.116 -45.936 10.921 1.00110.64 ATOM 77 O VAL A 16 -27.664 -46.294 12.017 1.00111.41 ATOM 78 CB VAL A 16 -26.627 -45.606 8.896 1.00111.35 ATOM 79 CG1 VAL A 16 -25.752 -44.866 9.895 1.00112.61 ATOM 80 CG2 VAL A 16 -25.771 -46.393 7.918 1.00114.59 ATOM 81 N VAL A 17 -29.080 -45.015 10.822 1.00107.25 ATOM 82 CA VAL A 17 -29.640 -44.408 12.030 1.00103.66 ATOM 83 C VAL A 17 -30.334 -45.464 12.882 1.00101.70 ATOM 84 O VAL A 17 -30.165 -45.506 14.110 1.00106.06 ATOM 85 CB VAL A 17 -30.597 -43.258 11.666 1.00101.37 ATOM 86 CG1 VAL A 17 -31.439 -42.869 12.867 1.00 96.02 ATOM 87 CG2 VAL A 17 -29.817 -42.055 11.187 1.00108.20 ATOM 88 N ALA A 18 -31.107 -46.347 12.244 1.00103.44 ATOM 89 CA ALA A 18 -31.805 -47.397 12.978 1.00103.92 ATOM 90 C ALA A 18 -30.828 -48.332 13.678 1.00105.47 ATOM 91 O ALA A 18 -31.031 -48.689 14.843 1.00106.56 ATOM 92 CB ALA A 18 -32.717 -48.179 12.033 1.00104.16 ATOM 93 N GLY A 19 -29.764 -48.741 12.986 1.00107.46 ATOM 94 CA GLY A 19 -28.781 -49.611 13.608 1.00107.35 ATOM 95 C GLY A 19 -28.074 -48.939 14.768 1.00108.33 ATOM 96 O GLY A 19 -27.883 -49.544 15.827 1.00108.16 ATOM 97 N LEU A 20 -27.681 -47.674 14.589 1.00103.17 ATOM 98 CA LEU A 20 -26.998 -46.976 15.668 1.00100.89 ATOM 99 C LEU A 20 -27.907 -46.812 16.874 1.00103.47 ATOM 100 O LEU A 20 -27.442 -46.925 18.013 1.00109.62 ATOM 101 CB LEU A 20 -26.483 -45.618 15.196 1.00102.17 ATOM 102 CG LEU A 20 -25.325 -45.646 14.202 1.00104.28 ATOM 103 CD1 LEU A 20 -24.970 -44.238 13.751 1.00110.11 ATOM 104 CD2 LEU A 20 -24.115 -46.337 14.816 1.00104.41 ATOM 105 N ALA A 21 -29.213 -46.635 16.660 1.00101.25 ATOM 106 CA ALA A 21 -30.075 -46.464 17.824 1.00101.48 ATOM 107 C ALA A 21 -30.464 -47.794 18.455 1.00103.10 ATOM 108 O ALA A 21 -30.611 -47.867 19.680 1.00108.10 ATOM 109 CB ALA A 21 -31.332 -45.685 17.436 1.00 97.92 ATOM 110 N VAL A 22 -30.531 -48.870 17.667 1.00103.73 ATOM 111 CA VAL A 22 -30.768 -50.186 18.254 1.00102.61 ATOM 112 C VAL A 22 -29.550 -50.631 19.049 1.00104.57 ATOM 113 O VAL A 22 -29.682 -51.272 20.100 1.00104.83 ATOM 114 CB VAL A 22 -31.149 -51.207 17.165 1.00101.26 ATOM 115 CG1 VAL A 22 -31.283 -52.598 17.757 1.00103.50 ATOM 116 CG2 VAL A 22 -32.460 -50.810 16.516 1.00101.62 ATOM 117 N LEU A 23 -28.361 -50.196 18.645 1.00 98.78 ATOM 118 CA LEU A 23 -27.168 -50.618 19.360 1.00 99.17 ATOM 119 C LEU A 23 -26.909 -49.725 20.558 1.00101.61 ATOM 120 O LEU A 23 -26.438 -50.210 21.595 1.00104.50 ATOM 121 CB LEU A 23 -25.953 -50.598 18.427 1.00 99.35 ATOM 122 CG LEU A 23 -25.791 -51.786 17.478 1.00 98.82 ATOM 123 CD1 LEU A 23 -24.621 -51.559 16.536 1.00 95.95 ATOM 124 CD2 LEU A 23 -25.606 -53.075 18.262 1.00 99.20 ATOM 125 N LEU A 24 -27.260 -48.442 20.451 1.00100.93 ATOM 126 CA LEU A 24 -27.338 -47.584 21.623 1.00101.28 ATOM 127 C LEU A 24 -28.251 -48.193 22.680 1.00105.96 ATOM 128 O LEU A 24 -27.859 -48.336 23.843 1.00106.33 ATOM 129 CB LEU A 24 -27.829 -46.194 21.214 1.00103.30 ATOM 130 CG LEU A 24 -28.234 -45.232 22.333 1.00109.04 ATOM 131 CD1 LEU A 24 -27.075 -44.988 23.292 1.00111.42 ATOM 132 CD2 LEU A 24 -28.738 -43.919 21.750 1.00107.98 ATOM 133 N GLN A 25 -29.472 -48.573 22.290 1.00101.05 ATOM 134 CA GLN A 25 -30.396 -49.157 23.257 1.00 99.52 ATOM 135 C GLN A 25 -29.842 -50.451 23.843 1.00102.33 ATOM 136 O GLN A 25 -29.885 -50.658 25.061 1.00104.57 ATOM 137 CB GLN A 25 -31.762 -49.396 22.616 1.00101.24 ATOM 138 CG GLN A 25 -32.655 -48.164 22.577 1.00105.02 ATOM 139 CD GLN A 25 -34.100 -48.504 22.258 1.00110.79 ATOM 140 OE1 GLN A 25 -34.579 -49.591 22.584 1.00111.33 ATOM 141 NE2 GLN A 25 -34.801 -47.576 21.614 1.00108.90 ATOM 142 N LEU A 26 -29.305 -51.332 22.993 1.00100.11 ATOM 143 CA LEU A 26 -28.774 -52.604 23.477 1.00103.58 ATOM 144 C LEU A 26 -27.670 -52.386 24.511 1.00104.44 ATOM 145 O LEU A 26 -27.753 -52.881 25.645 1.00102.59 ATOM 146 CB LEU A 26 -28.265 -53.436 22.295 1.00 98.25 ATOM 147 CG LEU A 26 -27.899 -54.912 22.509 1.00105.66 ATOM 148 CD1 LEU A 26 -28.104 -55.690 21.216 1.00104.55 ATOM 149 CD2 LEU A 26 -26.461 -55.087 23.015 1.00102.91 ATOM 150 N ILE A 27 -26.624 -51.644 24.135 1.00 90.80 ATOM 151 CA ILE A 27 -25.485 -51.465 25.029 1.00 93.60 ATOM 152 C ILE A 27 -25.895 -50.701 26.282 1.00 95.75 ATOM 153 O ILE A 27 -25.431 -51.007 27.388 1.00 97.88 ATOM 154 CB ILE A 27 -24.328 -50.770 24.290 1.00 86.86 ATOM 155 CG1 ILE A 27 -23.920 -51.589 23.066 1.00 86.29 ATOM 156 CG2 ILE A 27 -23.136 -50.586 25.215 1.00 90.13 ATOM 157 CD1 ILE A 27 -22.744 -51.013 22.312 1.00 87.58 ATOM 158 N ARG A 28 -26.784 -49.713 26.144 1.00 94.95 ATOM 159 CA ARG A 28 -27.174 -48.911 27.295 1.00 94.63 ATOM 160 C ARG A 28 -27.983 -49.729 28.291 1.00 94.91 ATOM 161 O ARG A 28 -27.759 -49.635 29.504 1.00 96.61 ATOM 162 CB ARG A 28 -27.954 -47.685 26.824 1.00 93.63 ATOM 163 CG ARG A 28 -28.291 -46.690 27.917 1.00101.82 ATOM 164 CD ARG A 28 -28.414 -45.282 27.348 1.00102.44 ATOM 165 NE ARG A 28 -29.416 -45.190 26.288 1.00 97.91 ATOM 166 CZ ARG A 28 -29.584 -44.124 25.512 1.00 99.48 ATOM 167 NH1 ARG A 28 -28.811 -43.058 25.670 1.00100.45 ATOM 168 NH2 ARG A 28 -30.520 -44.122 24.571 1.00 94.59 ATOM 169 N GLY A 29 -28.920 -50.547 27.806 1.00 88.48 ATOM 170 CA GLY A 29 -29.651 -51.421 28.707 1.00 88.05 ATOM 171 C GLY A 29 -28.750 -52.444 29.371 1.00 89.26 ATOM 172 O GLY A 29 -28.892 -52.731 30.566 1.00 92.38 ATOM 173 N TRP A 30 -27.810 -53.009 28.605 1.00 75.48 ATOM 174 CA TRP A 30 -26.816 -53.900 29.192 1.00 77.67 ATOM 175 C TRP A 30 -26.108 -53.222 30.355 1.00 80.24 ATOM 176 O TRP A 30 -26.079 -53.748 31.472 1.00 82.69 ATOM 177 CB TRP A 30 -25.811 -54.329 28.124 1.00 76.61 ATOM 178 CG TRP A 30 -24.787 -55.316 28.598 1.00 78.69 ATOM 179 CD1 TRP A 30 -24.962 -56.311 29.514 1.00 80.67 ATOM 180 CD2 TRP A 30 -23.421 -55.394 28.178 1.00 79.13 ATOM 181 NE1 TRP A 30 -23.791 -57.008 29.686 1.00 82.23 ATOM 182 CE2 TRP A 30 -22.830 -56.463 28.877 1.00 81.32 ATOM 183 CE3 TRP A 30 -22.641 -54.663 27.276 1.00 77.99 ATOM 184 CZ2 TRP A 30 -21.497 -56.819 28.703 1.00 82.36 ATOM 185 CZ3 TRP A 30 -21.320 -55.019 27.104 1.00 79.10 ATOM 186 CH2 TRP A 30 -20.759 -56.086 27.813 1.00 81.24 ATOM 187 N LEU A 31 -25.555 -52.031 30.113 1.00 80.85 ATOM 188 CA LEU A 31 -24.822 -51.325 31.159 1.00 83.36 ATOM 189 C LEU A 31 -25.713 -50.981 32.345 1.00 84.93 ATOM 190 O LEU A 31 -25.248 -50.988 33.490 1.00 87.74 ATOM 191 CB LEU A 31 -24.189 -50.059 30.588 1.00 82.51 ATOM 192 CG LEU A 31 -23.146 -50.321 29.506 1.00 81.48 ATOM 193 CD1 LEU A 31 -22.683 -49.017 28.881 1.00 80.55 ATOM 194 CD2 LEU A 31 -21.981 -51.089 30.092 1.00 85.19 ATOM 195 N SER A 32 -26.990 -50.683 32.097 1.00 82.85 ATOM 196 CA SER A 32 -27.904 -50.345 33.180 1.00 86.62 ATOM 197 C SER A 32 -28.378 -51.563 33.966 1.00 93.97 ATOM 198 O SER A 32 -28.888 -51.400 35.079 1.00 99.67 ATOM 199 CB SER A 32 -29.113 -49.586 32.630 1.00 87.66 ATOM 200 OG SER A 32 -28.724 -48.334 32.093 1.00 92.55 ATOM 201 N SER A 33 -28.226 -52.771 33.422 1.00 89.73 ATOM 202 CA SER A 33 -28.644 -53.980 34.121 1.00 89.06 ATOM 203 C SER A 33 -27.508 -54.957 34.410 1.00 92.69 ATOM 204 O SER A 33 -27.762 -56.015 34.999 1.00 96.60 ATOM 205 CB SER A 33 -29.739 -54.699 33.321 1.00 89.23 ATOM 206 OG SER A 33 -29.316 -54.946 31.991 1.00 93.27 ATOM 207 N LYS A 34 -26.273 -54.638 34.033 1.00 95.35 ATOM 208 CA LYS A 34 -25.168 -55.582 34.150 1.00 92.69 ATOM 209 C LYS A 34 -24.684 -55.699 35.592 1.00 97.61 ATOM 210 O LYS A 34 -24.768 -54.750 36.376 1.00100.25 ATOM 211 CB LYS A 34 -24.006 -55.151 33.252 1.00 83.36 ATOM 212 CG LYS A 34 -22.877 -56.159 33.169 1.00 87.13 ATOM 213 CD LYS A 34 -21.663 -55.583 32.478 1.00 76.88 ATOM 214 CE LYS A 34 -20.496 -56.555 32.554 1.00 78.97 ATOM 215 NZ LYS A 34 -20.078 -56.815 33.963 1.00 83.98 TER