HEADER SIGNALING PROTEIN 31-DEC-69 2P6A TITLE The structure of the Activin:Follistatin 315 complex COMPND MOL_ID: 2; COMPND 2 MOLECULE: Follistatin; COMPND 3 CHAIN: D, C; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.40 ANGSTORMS DBREF 2P6A D 1 315 UNP P19883 FST_HUMAN 30 344 SEQRES 1 D 28 ALA LYS SER CYS GLU ASP ILE GLN CYS THR GLY GLY LYS SEQRES 2 D 28 LYS CYS LEU TRP ASP PHE LYS VAL GLY ARG GLY ARG CYS SEQRES 3 D 28 SER LEU ATOM 1 N ALA D 213 38.808 45.432 -10.980 1.00 43.05 ATOM 2 CA ALA D 213 40.066 46.120 -10.699 1.00 62.52 ATOM 3 C ALA D 213 41.222 45.192 -11.014 1.00 52.14 ATOM 4 O ALA D 213 41.057 43.984 -11.030 1.00 29.21 ATOM 5 CB ALA D 213 40.135 46.575 -9.242 1.00 80.24 ATOM 6 N LYS D 214 42.379 45.769 -11.306 1.00 50.71 ATOM 7 CA LYS D 214 43.562 44.978 -11.570 1.00 17.23 ATOM 8 C LYS D 214 44.181 44.639 -10.232 1.00 13.91 ATOM 9 O LYS D 214 44.989 43.718 -10.149 1.00 16.86 ATOM 10 CB LYS D 214 44.532 45.772 -12.400 1.00 35.15 ATOM 11 N SER D 215 43.754 45.349 -9.189 1.00 12.58 ATOM 12 CA SER D 215 44.426 45.281 -7.895 1.00 38.38 ATOM 13 C SER D 215 43.585 45.867 -6.776 1.00 54.40 ATOM 14 O SER D 215 42.596 46.583 -7.047 1.00 37.84 ATOM 15 CB SER D 215 45.749 45.989 -7.954 1.00 63.56 ATOM 16 N CYS D 216 44.006 45.571 -5.540 1.00 30.47 ATOM 17 CA CYS D 216 43.243 45.953 -4.342 1.00 66.81 ATOM 18 C CYS D 216 42.941 47.464 -4.203 1.00 70.99 ATOM 19 O CYS D 216 41.837 47.896 -3.841 1.00 41.54 ATOM 20 CB CYS D 216 43.944 45.434 -3.075 1.00 84.69 ATOM 21 SG CYS D 216 43.609 43.698 -2.534 1.00101.91 ATOM 22 N GLU D 217 43.939 48.288 -4.477 1.00 68.73 ATOM 23 CA GLU D 217 43.753 49.710 -4.275 1.00 76.04 ATOM 24 C GLU D 217 42.647 50.179 -5.202 1.00 58.14 ATOM 25 O GLU D 217 42.070 51.257 -5.036 1.00 64.22 ATOM 26 CB GLU D 217 45.079 50.444 -4.476 1.00 92.46 ATOM 27 CG GLU D 217 46.108 49.930 -3.480 1.00 91.78 ATOM 28 CD GLU D 217 45.789 48.487 -3.079 1.00 97.46 ATOM 29 OE1 GLU D 217 45.834 47.604 -3.963 1.00109.14 ATOM 30 OE2 GLU D 217 45.431 48.225 -1.906 1.00 80.15 ATOM 31 N ASP D 218 42.315 49.320 -6.154 1.00 13.23 ATOM 32 CA ASP D 218 41.219 49.603 -7.047 1.00 38.33 ATOM 33 C ASP D 218 39.905 49.201 -6.425 1.00 40.59 ATOM 34 O ASP D 218 38.848 49.285 -7.063 1.00 45.40 ATOM 35 CB ASP D 218 41.419 48.847 -8.339 1.00 43.64 ATOM 36 CG ASP D 218 42.831 48.974 -8.830 1.00 85.40 ATOM 37 OD1 ASP D 218 43.722 48.910 -7.943 1.00 69.46 ATOM 38 OD2 ASP D 218 43.036 49.178 -10.058 1.00 99.07 ATOM 39 N ILE D 219 39.976 48.773 -5.169 1.00 14.18 ATOM 40 CA ILE D 219 38.766 48.435 -4.444 1.00 32.16 ATOM 41 C ILE D 219 38.571 49.286 -3.187 1.00 47.49 ATOM 42 O ILE D 219 39.513 49.415 -2.401 1.00 26.36 ATOM 43 CB ILE D 219 38.795 46.963 -4.061 1.00 32.90 ATOM 44 CG1 ILE D 219 37.371 46.420 -4.038 1.00 65.98 ATOM 45 CG2 ILE D 219 39.492 46.759 -2.726 1.00 25.10 ATOM 46 CD1 ILE D 219 37.292 44.965 -4.469 1.00 43.68 ATOM 47 N GLN D 220 37.363 49.830 -2.981 1.00 53.59 ATOM 48 CA GLN D 220 37.133 50.755 -1.868 1.00 60.45 ATOM 49 C GLN D 220 37.227 50.018 -0.538 1.00 63.71 ATOM 50 O GLN D 220 38.280 50.043 0.124 1.00 41.18 ATOM 51 CB GLN D 220 35.812 51.473 -1.997 1.00 72.47 ATOM 52 N CYS D 221 36.153 49.338 -0.145 1.00 20.43 ATOM 53 CA CYS D 221 36.273 48.433 1.027 1.00 61.18 ATOM 54 C CYS D 221 35.678 48.915 2.349 1.00 44.95 ATOM 55 O CYS D 221 36.419 49.232 3.288 1.00 63.08 ATOM 56 CB CYS D 221 37.741 48.025 1.286 1.00 62.79 ATOM 57 SG CYS D 221 38.008 46.329 2.012 1.00 73.57 ATOM 58 N THR D 222 34.352 48.875 2.459 1.00 52.25 ATOM 59 CA THR D 222 33.653 49.492 3.582 1.00 49.47 ATOM 60 C THR D 222 33.690 48.691 4.872 1.00 60.79 ATOM 61 O THR D 222 34.414 47.705 4.996 1.00 60.75 ATOM 62 CB THR D 222 32.183 49.699 3.251 1.00 91.05 ATOM 63 OG1 THR D 222 31.559 48.419 3.070 1.00110.83 ATOM 64 CG2 THR D 222 32.040 50.542 1.989 1.00121.92 ATOM 65 N GLY D 223 32.883 49.119 5.839 1.00 73.28 ATOM 66 CA GLY D 223 32.833 48.440 7.131 1.00 88.40 ATOM 67 C GLY D 223 34.231 48.286 7.705 1.00 76.22 ATOM 68 O GLY D 223 34.433 47.772 8.804 1.00 72.46 ATOM 69 N GLY D 224 35.211 48.746 6.942 1.00 65.98 ATOM 70 CA GLY D 224 36.568 48.751 7.425 1.00 55.53 ATOM 71 C GLY D 224 37.057 47.335 7.466 1.00 37.06 ATOM 72 O GLY D 224 37.427 46.828 8.516 1.00 72.75 ATOM 73 N LYS D 225 37.010 46.682 6.316 1.00 18.60 ATOM 74 CA LYS D 225 37.683 45.397 6.151 1.00 36.08 ATOM 75 C LYS D 225 38.870 45.581 5.199 1.00 32.72 ATOM 76 O LYS D 225 39.082 46.667 4.660 1.00 61.98 ATOM 77 CB LYS D 225 36.701 44.359 5.598 1.00 42.39 ATOM 78 CG LYS D 225 35.237 44.718 5.915 1.00 69.19 ATOM 79 CD LYS D 225 34.197 43.904 5.114 1.00 66.33 ATOM 80 CE LYS D 225 32.749 44.310 5.480 1.00 78.77 ATOM 81 NZ LYS D 225 31.639 43.497 4.864 1.00 93.01 ATOM 82 N LYS D 226 39.642 44.522 4.991 1.00 29.74 ATOM 83 CA LYS D 226 40.820 44.595 4.121 1.00 28.26 ATOM 84 C LYS D 226 40.652 43.773 2.852 1.00 12.95 ATOM 85 O LYS D 226 40.087 42.674 2.848 1.00 9.99 ATOM 86 CB LYS D 226 42.096 44.122 4.836 1.00 22.03 ATOM 87 CG LYS D 226 42.381 44.789 6.197 1.00 78.49 ATOM 88 CD LYS D 226 43.901 44.823 6.572 1.00 89.33 ATOM 89 CE LYS D 226 44.235 45.695 7.829 1.00 70.51 ATOM 90 NZ LYS D 226 45.706 46.006 8.033 1.00 80.27 ATOM 91 N CYS D 227 41.142 44.305 1.748 1.00 15.94 ATOM 92 CA CYS D 227 41.024 43.555 0.513 1.00 6.24 ATOM 93 C CYS D 227 42.089 42.479 0.511 1.00 26.44 ATOM 94 O CYS D 227 43.143 42.652 1.138 1.00 53.37 ATOM 95 CB CYS D 227 41.239 44.475 -0.673 1.00 38.78 ATOM 96 SG CYS D 227 41.591 43.559 -2.176 1.00 70.85 ATOM 97 N LEU D 228 41.801 41.366 -0.160 1.00 6.47 ATOM 98 CA LEU D 228 42.817 40.321 -0.340 1.00 16.08 ATOM 99 C LEU D 228 42.583 39.707 -1.676 1.00 7.09 ATOM 100 O LEU D 228 41.490 39.238 -1.976 1.00 16.17 ATOM 101 CB LEU D 228 42.745 39.211 0.718 1.00 28.17 ATOM 102 CG LEU D 228 42.448 39.626 2.162 1.00 21.07 ATOM 103 CD1 LEU D 228 40.954 39.946 2.227 1.00 36.90 ATOM 104 CD2 LEU D 228 42.888 38.612 3.237 1.00 -2.02 ATOM 105 N TRP D 229 43.622 39.690 -2.481 1.00 -1.19 ATOM 106 CA TRP D 229 43.423 39.240 -3.855 1.00 27.98 ATOM 107 C TRP D 229 43.550 37.725 -3.868 1.00 24.94 ATOM 108 O TRP D 229 44.196 37.159 -2.970 1.00 23.05 ATOM 109 CB TRP D 229 44.491 39.861 -4.771 1.00 57.80 ATOM 110 CG TRP D 229 44.159 39.886 -6.247 1.00 37.74 ATOM 111 CD1 TRP D 229 44.534 38.977 -7.188 1.00 53.34 ATOM 112 CD2 TRP D 229 43.406 40.885 -6.943 1.00 47.03 ATOM 113 NE1 TRP D 229 44.052 39.338 -8.427 1.00 42.24 ATOM 114 CE2 TRP D 229 43.350 40.502 -8.294 1.00 32.47 ATOM 115 CE3 TRP D 229 42.773 42.066 -6.554 1.00 50.70 ATOM 116 CZ2 TRP D 229 42.703 41.264 -9.251 1.00 74.33 ATOM 117 CZ3 TRP D 229 42.133 42.823 -7.514 1.00 37.03 ATOM 118 CH2 TRP D 229 42.096 42.420 -8.837 1.00 52.55 ATOM 119 N ASP D 230 42.913 37.095 -4.856 1.00 5.70 ATOM 120 CA ASP D 230 43.086 35.673 -5.158 1.00 25.77 ATOM 121 C ASP D 230 43.492 35.528 -6.627 1.00 32.51 ATOM 122 O ASP D 230 42.727 35.867 -7.547 1.00 29.47 ATOM 123 CB ASP D 230 41.774 34.907 -4.899 1.00 64.31 ATOM 124 CG ASP D 230 41.826 33.434 -5.359 1.00 87.81 ATOM 125 OD1 ASP D 230 42.927 32.815 -5.338 1.00 67.97 ATOM 126 OD2 ASP D 230 40.738 32.901 -5.724 1.00 40.74 ATOM 127 N PHE D 231 44.699 35.016 -6.851 1.00 63.59 ATOM 128 CA PHE D 231 45.241 34.909 -8.211 1.00 81.30 ATOM 129 C PHE D 231 44.656 33.697 -8.937 1.00 84.10 ATOM 130 O PHE D 231 44.840 33.534 -10.160 1.00 46.09 ATOM 131 CB PHE D 231 46.769 34.818 -8.191 1.00 87.94 ATOM 132 CG PHE D 231 47.441 35.851 -7.323 1.00 85.79 ATOM 133 CD1 PHE D 231 47.502 35.698 -5.938 1.00 85.65 ATOM 134 CD2 PHE D 231 48.068 36.943 -7.897 1.00 75.12 ATOM 135 CE1 PHE D 231 48.152 36.639 -5.137 1.00 75.62 ATOM 136 CE2 PHE D 231 48.731 37.878 -7.101 1.00100.09 ATOM 137 CZ PHE D 231 48.772 37.725 -5.719 1.00 85.11 ATOM 138 N LYS D 232 43.976 32.853 -8.157 1.00 65.05 ATOM 139 CA LYS D 232 43.234 31.716 -8.675 1.00 46.59 ATOM 140 C LYS D 232 42.072 32.179 -9.555 1.00 43.98 ATOM 141 O LYS D 232 41.851 31.639 -10.639 1.00 45.08 ATOM 142 CB LYS D 232 42.738 30.821 -7.536 1.00 45.81 ATOM 143 CG LYS D 232 42.161 29.475 -8.015 1.00 77.57 ATOM 144 CD LYS D 232 41.926 28.465 -6.884 1.00 39.15 ATOM 145 CE LYS D 232 41.144 29.104 -5.734 1.00 72.66 ATOM 146 NZ LYS D 232 41.926 30.122 -4.929 1.00 18.60 ATOM 147 N VAL D 233 41.349 33.206 -9.119 1.00 20.83 ATOM 148 CA VAL D 233 40.260 33.736 -9.938 1.00 45.63 ATOM 149 C VAL D 233 40.511 35.156 -10.433 1.00 51.04 ATOM 150 O VAL D 233 39.727 35.701 -11.211 1.00 60.80 ATOM 151 CB VAL D 233 38.938 33.738 -9.185 1.00 42.04 ATOM 152 CG1 VAL D 233 38.492 32.313 -8.915 1.00 65.37 ATOM 153 CG2 VAL D 233 39.090 34.535 -7.894 1.00 65.39 ATOM 154 N GLY D 234 41.591 35.771 -9.967 1.00 44.74 ATOM 155 CA GLY D 234 41.972 37.079 -10.496 1.00 56.60 ATOM 156 C GLY D 234 40.868 38.060 -10.182 1.00 46.56 ATOM 157 O GLY D 234 40.355 38.791 -11.035 1.00 59.82 ATOM 158 N ARG D 235 40.431 37.996 -8.940 1.00 48.22 ATOM 159 CA ARG D 235 39.524 38.991 -8.438 1.00 39.10 ATOM 160 C ARG D 235 39.893 39.028 -6.961 1.00 41.96 ATOM 161 O ARG D 235 40.205 37.979 -6.395 1.00 48.05 ATOM 162 CB ARG D 235 38.073 38.526 -8.641 1.00 68.59 ATOM 163 CG ARG D 235 37.746 37.960 -10.033 1.00 63.71 ATOM 164 CD ARG D 235 36.248 37.602 -10.167 1.00 74.35 ATOM 165 NE ARG D 235 35.785 36.651 -9.156 1.00 46.23 ATOM 166 CZ ARG D 235 35.668 35.342 -9.359 1.00 61.99 ATOM 167 NH1 ARG D 235 35.938 34.818 -10.552 1.00 65.38 ATOM 168 NH2 ARG D 235 35.261 34.561 -8.367 1.00 67.73 ATOM 169 N GLY D 236 39.952 40.230 -6.381 1.00 50.86 ATOM 170 CA GLY D 236 40.082 40.429 -4.926 1.00 24.08 ATOM 171 C GLY D 236 38.789 40.541 -4.088 1.00 34.02 ATOM 172 O GLY D 236 37.674 40.685 -4.596 1.00 25.58 ATOM 173 N ARG D 237 38.914 40.405 -2.772 1.00 2.15 ATOM 174 CA ARG D 237 37.797 40.709 -1.915 1.00 0.65 ATOM 175 C ARG D 237 38.196 41.089 -0.509 1.00 20.90 ATOM 176 O ARG D 237 39.326 40.878 -0.058 1.00 -1.56 ATOM 177 CB ARG D 237 36.815 39.584 -1.840 1.00 11.61 ATOM 178 CG ARG D 237 36.511 39.289 -0.388 1.00 2.17 ATOM 179 CD ARG D 237 37.018 37.913 -0.063 1.00 21.86 ATOM 180 NE ARG D 237 37.016 37.043 -1.244 1.00 9.74 ATOM 181 CZ ARG D 237 37.041 35.710 -1.219 1.00 33.58 ATOM 182 NH1 ARG D 237 37.059 35.039 -0.054 1.00 19.80 ATOM 183 NH2 ARG D 237 37.039 35.069 -2.387 1.00 10.00 ATOM 184 N CYS D 238 37.212 41.652 0.171 1.00 9.70 ATOM 185 CA CYS D 238 37.464 42.383 1.373 1.00 19.32 ATOM 186 C CYS D 238 37.045 41.513 2.490 1.00 7.91 ATOM 187 O CYS D 238 35.864 41.224 2.600 1.00 37.39 ATOM 188 CB CYS D 238 36.584 43.627 1.399 1.00 4.31 ATOM 189 SG CYS D 238 37.348 45.010 0.565 1.00 53.82 ATOM 190 N SER D 239 38.000 41.082 3.300 1.00 1.27 ATOM 191 CA SER D 239 37.626 40.527 4.593 1.00 51.00 ATOM 192 C SER D 239 38.075 41.354 5.791 1.00 26.99 ATOM 193 O SER D 239 39.139 41.954 5.795 1.00 38.11 ATOM 194 CB SER D 239 37.981 39.047 4.770 1.00 57.60 ATOM 195 OG SER D 239 37.672 38.606 6.098 1.00 78.60 ATOM 196 N LEU D 240 37.248 41.380 6.827 1.00 40.61 ATOM 197 CA LEU D 240 37.589 42.145 7.999 1.00 38.19 ATOM 198 C LEU D 240 38.703 41.420 8.719 1.00 45.53 ATOM 199 O LEU D 240 38.976 40.249 8.460 1.00 49.17 ATOM 200 CB LEU D 240 36.378 42.320 8.907 1.00 18.73 ATOM 201 CG LEU D 240 35.773 41.063 9.523 1.00 56.26 ATOM 202 CD1 LEU D 240 34.465 41.479 10.240 1.00 27.63 ATOM 203 CD2 LEU D 240 35.576 39.937 8.472 1.00 26.30 TER