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 26 LYS THR CYS ARG ASP VAL PHE CYS PRO GLY SER SER THR SEQRES 2 D 26 CYS VAL VAL ASP GLN THR ASN ASN ALA TYR CYS VAL THR ATOM 1 N LYS D 137 27.539 14.159 3.301 1.00 33.38 ATOM 2 CA LYS D 137 28.632 15.109 3.207 1.00 23.75 ATOM 3 C LYS D 137 28.399 16.264 2.238 1.00 25.81 ATOM 4 O LYS D 137 28.736 17.409 2.536 1.00 49.93 ATOM 5 CB LYS D 137 29.928 14.383 2.885 1.00 13.41 ATOM 6 CG LYS D 137 31.119 15.064 3.526 1.00 64.14 ATOM 7 CD LYS D 137 30.713 15.777 4.844 1.00 40.35 ATOM 8 CE LYS D 137 31.858 16.644 5.419 1.00 72.14 ATOM 9 NZ LYS D 137 31.476 17.583 6.534 1.00 61.45 ATOM 10 N THR D 138 27.806 15.976 1.087 1.00 15.28 ATOM 11 CA THR D 138 27.506 17.038 0.136 1.00 5.35 ATOM 12 C THR D 138 26.243 16.707 -0.631 1.00 22.50 ATOM 13 O THR D 138 25.896 15.531 -0.746 1.00 29.31 ATOM 14 CB THR D 138 28.549 17.090 -0.929 1.00 14.47 ATOM 15 OG1 THR D 138 27.937 17.658 -2.094 1.00 27.36 ATOM 16 CG2 THR D 138 29.015 15.667 -1.236 1.00 18.73 ATOM 17 N CYS D 139 25.618 17.730 -1.221 1.00 22.04 ATOM 18 CA CYS D 139 24.340 17.577 -1.937 1.00 14.77 ATOM 19 C CYS D 139 24.332 16.493 -3.044 1.00 39.87 ATOM 20 O CYS D 139 23.299 16.220 -3.716 1.00 19.91 ATOM 21 CB CYS D 139 23.892 18.925 -2.510 1.00 34.94 ATOM 22 SG CYS D 139 23.352 20.210 -1.318 1.00 51.91 ATOM 23 N ARG D 140 25.493 15.869 -3.227 1.00 18.84 ATOM 24 CA ARG D 140 25.590 14.755 -4.150 1.00 23.45 ATOM 25 C ARG D 140 24.709 13.612 -3.655 1.00 36.93 ATOM 26 O ARG D 140 24.909 13.109 -2.552 1.00 50.67 ATOM 27 CB ARG D 140 27.046 14.304 -4.289 1.00 24.03 ATOM 28 N ASP D 141 23.728 13.207 -4.457 1.00 51.43 ATOM 29 CA ASP D 141 22.866 12.087 -4.067 1.00 71.58 ATOM 30 C ASP D 141 22.261 12.303 -2.677 1.00 55.94 ATOM 31 O ASP D 141 22.535 11.547 -1.736 1.00 66.02 ATOM 32 CB ASP D 141 23.604 10.732 -4.143 1.00 72.85 ATOM 33 CG ASP D 141 22.721 9.536 -3.709 1.00 97.54 ATOM 34 OD1 ASP D 141 21.470 9.643 -3.785 1.00 95.36 ATOM 35 OD2 ASP D 141 23.275 8.482 -3.287 1.00 85.22 ATOM 36 N VAL D 142 21.459 13.358 -2.544 1.00 38.10 ATOM 37 CA VAL D 142 20.571 13.484 -1.387 1.00 35.34 ATOM 38 C VAL D 142 19.185 13.933 -1.811 1.00 36.97 ATOM 39 O VAL D 142 19.041 14.819 -2.659 1.00 48.86 ATOM 40 CB VAL D 142 21.096 14.489 -0.389 1.00 5.08 ATOM 41 CG1 VAL D 142 22.520 14.149 -0.096 1.00 45.88 ATOM 42 CG2 VAL D 142 21.045 15.842 -1.004 1.00 34.55 ATOM 43 N PHE D 143 18.163 13.325 -1.222 1.00 7.16 ATOM 44 CA PHE D 143 16.812 13.650 -1.632 1.00 42.17 ATOM 45 C PHE D 143 16.014 14.525 -0.679 1.00 24.93 ATOM 46 O PHE D 143 15.450 14.065 0.324 1.00 37.37 ATOM 47 CB PHE D 143 16.031 12.390 -1.978 1.00 81.20 ATOM 48 CG PHE D 143 14.687 12.665 -2.603 1.00108.78 ATOM 49 CD1 PHE D 143 13.603 13.060 -1.815 1.00111.01 ATOM 50 CD2 PHE D 143 14.505 12.519 -3.979 1.00121.60 ATOM 51 CE1 PHE D 143 12.362 13.300 -2.392 1.00131.81 ATOM 52 CE2 PHE D 143 13.268 12.760 -4.568 1.00118.34 ATOM 53 CZ PHE D 143 12.195 13.151 -3.773 1.00124.85 ATOM 54 N CYS D 144 15.894 15.789 -1.041 1.00 5.53 ATOM 55 CA CYS D 144 15.043 16.642 -0.254 1.00 22.29 ATOM 56 C CYS D 144 13.545 16.485 -0.437 1.00 5.71 ATOM 57 O CYS D 144 13.021 16.218 -1.488 1.00 16.34 ATOM 58 CB CYS D 144 15.457 18.102 -0.389 1.00 54.16 ATOM 59 SG CYS D 144 17.258 18.385 -0.175 1.00 60.56 ATOM 60 N PRO D 145 12.819 16.744 0.614 1.00 25.20 ATOM 61 CA PRO D 145 11.374 16.681 0.523 1.00 22.33 ATOM 62 C PRO D 145 10.728 17.940 -0.084 1.00 40.29 ATOM 63 O PRO D 145 11.125 19.079 0.215 1.00 14.05 ATOM 64 CB PRO D 145 10.957 16.529 1.990 1.00 21.64 ATOM 65 CG PRO D 145 12.328 16.426 2.799 1.00 21.65 ATOM 66 CD PRO D 145 13.321 17.097 1.950 1.00 5.01 ATOM 67 N GLY D 146 9.717 17.723 -0.922 1.00 47.81 ATOM 68 CA GLY D 146 8.806 18.790 -1.335 1.00 41.34 ATOM 69 C GLY D 146 9.490 19.902 -2.101 1.00 52.71 ATOM 70 O GLY D 146 10.139 19.654 -3.119 1.00 74.37 ATOM 71 N SER D 147 9.337 21.138 -1.637 1.00 60.61 ATOM 72 CA SER D 147 9.978 22.269 -2.303 1.00 55.98 ATOM 73 C SER D 147 11.376 22.478 -1.734 1.00 71.06 ATOM 74 O SER D 147 12.211 23.149 -2.343 1.00 63.44 ATOM 75 CB SER D 147 9.145 23.539 -2.122 1.00 46.57 ATOM 76 OG SER D 147 7.796 23.310 -2.498 1.00 68.53 ATOM 77 N SER D 148 11.596 21.914 -0.546 1.00 78.25 ATOM 78 CA SER D 148 12.885 21.940 0.144 1.00 54.62 ATOM 79 C SER D 148 13.991 21.583 -0.836 1.00 40.61 ATOM 80 O SER D 148 13.961 20.494 -1.409 1.00 56.40 ATOM 81 CB SER D 148 12.862 20.903 1.278 1.00 78.53 ATOM 82 OG SER D 148 14.150 20.641 1.820 1.00 76.94 ATOM 83 N THR D 149 14.935 22.507 -1.033 1.00 48.96 ATOM 84 CA THR D 149 16.095 22.340 -1.934 1.00 29.44 ATOM 85 C THR D 149 17.284 22.026 -1.054 1.00 4.95 ATOM 86 O THR D 149 17.223 22.271 0.149 1.00 25.80 ATOM 87 CB THR D 149 16.444 23.672 -2.698 1.00 36.15 ATOM 88 OG1 THR D 149 16.038 24.820 -1.922 1.00 33.68 ATOM 89 CG2 THR D 149 15.728 23.742 -4.041 1.00 29.35 ATOM 90 N CYS D 150 18.377 21.570 -1.656 1.00 18.56 ATOM 91 CA CYS D 150 19.631 21.334 -0.924 1.00 19.58 ATOM 92 C CYS D 150 20.712 22.442 -0.899 1.00 5.12 ATOM 93 O CYS D 150 20.783 23.272 -1.817 1.00 12.59 ATOM 94 CB CYS D 150 20.256 20.053 -1.435 1.00 30.75 ATOM 95 SG CYS D 150 21.627 19.524 -0.423 1.00 26.09 ATOM 96 N VAL D 151 21.573 22.413 0.126 1.00 4.00 ATOM 97 CA VAL D 151 22.589 23.448 0.358 1.00 3.96 ATOM 98 C VAL D 151 23.814 22.950 1.105 1.00 3.66 ATOM 99 O VAL D 151 23.909 21.789 1.480 1.00 38.77 ATOM 100 CB VAL D 151 22.034 24.512 1.282 1.00 3.60 ATOM 101 CG1 VAL D 151 22.740 25.772 1.045 1.00 17.63 ATOM 102 CG2 VAL D 151 20.570 24.693 1.020 1.00 47.64 ATOM 103 N VAL D 152 24.721 23.854 1.442 1.00 3.64 ATOM 104 CA VAL D 152 25.828 23.450 2.304 1.00 7.90 ATOM 105 C VAL D 152 26.362 24.537 3.245 1.00 16.42 ATOM 106 O VAL D 152 26.133 25.741 3.037 1.00 16.01 ATOM 107 CB VAL D 152 26.941 23.016 1.431 1.00 4.01 ATOM 108 CG1 VAL D 152 26.381 21.971 0.529 1.00 4.32 ATOM 109 CG2 VAL D 152 27.372 24.240 0.641 1.00 31.31 ATOM 110 N ASP D 153 27.117 24.110 4.258 1.00 9.53 ATOM 111 CA ASP D 153 27.707 25.037 5.209 1.00 2.62 ATOM 112 C ASP D 153 29.218 25.077 5.205 1.00 5.47 ATOM 113 O ASP D 153 29.902 24.161 4.765 1.00 3.39 ATOM 114 CB ASP D 153 27.256 24.703 6.618 1.00 12.23 ATOM 115 CG ASP D 153 27.587 23.265 7.014 1.00 28.15 ATOM 116 OD1 ASP D 153 27.936 22.474 6.114 1.00 10.81 ATOM 117 OD2 ASP D 153 27.466 22.906 8.214 1.00 30.04 ATOM 118 N GLN D 154 29.732 26.199 5.681 1.00 21.53 ATOM 119 CA GLN D 154 31.084 26.221 6.207 1.00 18.79 ATOM 120 C GLN D 154 31.688 24.817 6.075 1.00 26.84 ATOM 121 O GLN D 154 32.548 24.579 5.238 1.00 11.89 ATOM 122 CB GLN D 154 31.022 26.604 7.685 1.00 27.24 ATOM 123 CG GLN D 154 30.110 25.681 8.506 1.00 22.01 ATOM 124 CD GLN D 154 29.734 26.299 9.840 1.00 39.11 ATOM 125 OE1 GLN D 154 29.608 27.517 9.922 1.00 55.63 ATOM 126 NE2 GLN D 154 29.550 25.475 10.882 1.00 33.20 ATOM 127 N THR D 155 31.238 23.878 6.897 1.00 27.36 ATOM 128 CA THR D 155 31.912 22.584 6.968 1.00 32.91 ATOM 129 C THR D 155 31.629 21.836 5.684 1.00 4.67 ATOM 130 O THR D 155 32.504 21.284 5.045 1.00 11.29 ATOM 131 CB THR D 155 31.341 21.737 8.127 1.00 24.15 ATOM 132 OG1 THR D 155 31.560 22.420 9.364 1.00 64.76 ATOM 133 CG2 THR D 155 31.990 20.352 8.183 1.00 65.94 ATOM 134 N ASN D 156 30.355 21.785 5.344 1.00 27.21 ATOM 135 CA ASN D 156 29.944 21.050 4.177 1.00 19.63 ATOM 136 C ASN D 156 28.724 20.198 4.302 1.00 10.34 ATOM 137 O ASN D 156 27.811 20.289 3.494 1.00 12.67 ATOM 138 CB ASN D 156 31.096 20.260 3.626 1.00 4.50 ATOM 139 CG ASN D 156 31.687 20.974 2.492 1.00 7.38 ATOM 140 OD1 ASN D 156 31.788 22.200 2.561 1.00 39.06 ATOM 141 ND2 ASN D 156 31.953 20.274 1.390 1.00 34.67 ATOM 142 N ASN D 157 28.722 19.360 5.319 1.00 3.00 ATOM 143 CA ASN D 157 27.551 18.564 5.605 1.00 14.45 ATOM 144 C ASN D 157 26.325 19.263 5.018 1.00 6.15 ATOM 145 O ASN D 157 26.017 20.412 5.361 1.00 14.16 ATOM 146 CB ASN D 157 27.430 18.393 7.122 1.00 42.03 ATOM 147 CG ASN D 157 28.070 19.540 7.887 1.00 38.20 ATOM 148 OD1 ASN D 157 27.432 20.158 8.742 1.00 34.17 ATOM 149 ND2 ASN D 157 29.334 19.835 7.579 1.00 23.21 ATOM 150 N ALA D 158 25.640 18.587 4.106 1.00 2.80 ATOM 151 CA ALA D 158 24.560 19.243 3.383 1.00 2.85 ATOM 152 C ALA D 158 23.165 19.198 4.037 1.00 31.57 ATOM 153 O ALA D 158 22.856 18.337 4.877 1.00 30.75 ATOM 154 CB ALA D 158 24.513 18.730 1.972 1.00 36.29 ATOM 155 N TYR D 159 22.305 20.133 3.640 1.00 22.12 ATOM 156 CA TYR D 159 21.011 20.256 4.295 1.00 6.25 ATOM 157 C TYR D 159 19.897 20.344 3.309 1.00 24.16 ATOM 158 O TYR D 159 20.147 20.631 2.134 1.00 19.37 ATOM 159 CB TYR D 159 20.940 21.523 5.122 1.00 2.84 ATOM 160 CG TYR D 159 21.819 21.477 6.323 1.00 15.47 ATOM 161 CD1 TYR D 159 21.412 20.827 7.466 1.00 0.91 ATOM 162 CD2 TYR D 159 23.085 22.065 6.287 1.00 19.68 ATOM 163 CE1 TYR D 159 22.243 20.795 8.567 1.00 50.45 ATOM 164 CE2 TYR D 159 23.924 22.036 7.373 1.00 1.05 ATOM 165 CZ TYR D 159 23.495 21.409 8.517 1.00 14.38 ATOM 166 OH TYR D 159 24.336 21.390 9.611 1.00 53.55 ATOM 167 N CYS D 160 18.678 20.135 3.815 1.00 9.43 ATOM 168 CA CYS D 160 17.512 20.409 3.015 1.00 2.99 ATOM 169 C CYS D 160 16.675 21.495 3.609 1.00 2.92 ATOM 170 O CYS D 160 16.073 21.335 4.662 1.00 26.29 ATOM 171 CB CYS D 160 16.692 19.168 2.738 1.00 4.73 ATOM 172 SG CYS D 160 17.606 17.953 1.798 1.00 18.79 ATOM 173 N VAL D 161 16.614 22.605 2.900 1.00 11.26 ATOM 174 CA VAL D 161 15.800 23.684 3.374 1.00 8.73 ATOM 175 C VAL D 161 15.112 24.382 2.215 1.00 7.36 ATOM 176 O VAL D 161 15.218 23.961 1.060 1.00 7.82 ATOM 177 CB VAL D 161 16.692 24.689 4.041 1.00 9.88 ATOM 178 CG1 VAL D 161 17.540 25.342 2.964 1.00 3.40 ATOM 179 CG2 VAL D 161 15.817 25.702 4.790 1.00 59.84 ATOM 180 N THR D 162 14.447 25.487 2.521 1.00 20.58 ATOM 181 CA THR D 162 13.638 26.135 1.507 1.00 59.57 ATOM 182 C THR D 162 14.155 27.511 1.163 1.00 46.66 ATOM 183 O THR D 162 14.722 28.180 2.015 1.00 47.34 ATOM 184 CB THR D 162 12.187 26.228 1.958 1.00 47.37 ATOM 185 OG1 THR D 162 11.965 25.198 2.932 1.00 67.66 ATOM 186 CG2 THR D 162 11.262 26.012 0.753 1.00 55.31 TER