HEADER SIGNALING PROTEIN 14-SEP-05 2B0U TITLE The Structure of the Follistatin:Activin Complex COMPND MOL_ID: 2; COMPND 2 MOLECULE: Follistatin; COMPND 3 CHAIN: C, D; COMPND 4 FRAGMENT: ; COMPND 5 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.80 ANGSTORMS DBREF 2B0U C 1 288 UNP P19883 FST_HUMAN 30 317 SEQRES 1 C 26 LYS THR CYS ARG ASP VAL PHE CYS PRO GLY SER SER THR SEQRES 2 C 26 CYS VAL VAL ASP GLN THR ASN ASN ALA TYR CYS VAL THR ATOM 1 N LYS C 137 93.614 65.897 28.172 1.00 62.96 ATOM 2 CA LYS C 137 94.480 64.960 28.879 1.00 62.55 ATOM 3 C LYS C 137 94.729 65.300 30.345 1.00 63.47 ATOM 4 O LYS C 137 94.660 64.417 31.189 1.00 66.87 ATOM 5 CB LYS C 137 95.814 64.824 28.177 1.00 59.20 ATOM 6 CG LYS C 137 95.751 64.029 26.911 1.00 55.37 ATOM 7 CD LYS C 137 95.521 62.583 27.208 1.00 50.72 ATOM 8 CE LYS C 137 95.902 61.745 26.028 1.00 48.14 ATOM 9 NZ LYS C 137 95.745 60.312 26.338 1.00 48.13 ATOM 10 N THR C 138 95.029 66.543 30.668 1.00 61.70 ATOM 11 CA THR C 138 95.251 66.871 32.058 1.00 61.70 ATOM 12 C THR C 138 94.065 67.582 32.626 1.00 61.34 ATOM 13 O THR C 138 93.279 68.186 31.903 1.00 61.91 ATOM 14 CB THR C 138 96.460 67.750 32.255 1.00 62.66 ATOM 15 OG1 THR C 138 96.397 68.862 31.354 1.00 65.73 ATOM 16 CG2 THR C 138 97.701 66.966 32.003 1.00 63.25 ATOM 17 N CYS C 139 93.957 67.510 33.940 1.00 60.46 ATOM 18 CA CYS C 139 92.864 68.110 34.671 1.00 61.47 ATOM 19 C CYS C 139 92.910 69.626 34.739 1.00 63.40 ATOM 20 O CYS C 139 92.014 70.256 35.304 1.00 62.51 ATOM 21 CB CYS C 139 92.828 67.527 36.080 1.00 58.86 ATOM 22 SG CYS C 139 91.900 65.962 36.200 1.00 58.41 ATOM 23 N ARG C 140 93.936 70.213 34.136 1.00 67.59 ATOM 24 CA ARG C 140 94.122 71.667 34.157 1.00 72.40 ATOM 25 C ARG C 140 92.920 72.545 33.916 1.00 74.45 ATOM 26 O ARG C 140 92.433 73.176 34.854 1.00 75.50 ATOM 27 CB ARG C 140 95.219 72.057 33.198 1.00 75.43 ATOM 28 CG ARG C 140 96.549 71.537 33.653 1.00 80.98 ATOM 29 CD ARG C 140 97.628 72.547 33.385 1.00 84.82 ATOM 30 NE ARG C 140 98.452 72.167 32.251 1.00 89.40 ATOM 31 CZ ARG C 140 98.684 72.956 31.212 1.00 92.48 ATOM 32 NH1 ARG C 140 98.145 74.165 31.166 1.00 93.91 ATOM 33 NH2 ARG C 140 99.464 72.545 30.224 1.00 94.60 ATOM 34 N ASP C 141 92.466 72.651 32.668 1.00 76.90 ATOM 35 CA ASP C 141 91.271 73.453 32.447 1.00 78.72 ATOM 36 C ASP C 141 90.188 72.535 31.956 1.00 75.36 ATOM 37 O ASP C 141 89.930 72.391 30.754 1.00 75.03 ATOM 38 CB ASP C 141 91.465 74.615 31.463 1.00 86.06 ATOM 39 CG ASP C 141 90.425 75.730 31.682 1.00 92.25 ATOM 40 OD1 ASP C 141 89.352 75.426 32.261 1.00 96.58 ATOM 41 OD2 ASP C 141 90.668 76.894 31.284 1.00 95.57 ATOM 42 N VAL C 142 89.585 71.895 32.943 1.00 70.42 ATOM 43 CA VAL C 142 88.508 70.975 32.746 1.00 66.62 ATOM 44 C VAL C 142 87.553 71.403 33.819 1.00 66.28 ATOM 45 O VAL C 142 87.797 71.200 35.003 1.00 65.74 ATOM 46 CB VAL C 142 88.983 69.560 32.985 1.00 64.71 ATOM 47 CG1 VAL C 142 87.816 68.601 32.923 1.00 62.82 ATOM 48 CG2 VAL C 142 90.027 69.205 31.955 1.00 62.40 ATOM 49 N PHE C 143 86.492 72.057 33.398 1.00 66.52 ATOM 50 CA PHE C 143 85.509 72.528 34.331 1.00 67.48 ATOM 51 C PHE C 143 84.518 71.390 34.510 1.00 65.10 ATOM 52 O PHE C 143 83.709 71.097 33.622 1.00 65.11 ATOM 53 CB PHE C 143 84.860 73.795 33.770 1.00 73.13 ATOM 54 CG PHE C 143 83.784 74.369 34.633 1.00 79.98 ATOM 55 CD1 PHE C 143 82.507 73.807 34.639 1.00 83.12 ATOM 56 CD2 PHE C 143 84.041 75.480 35.437 1.00 83.16 ATOM 57 CE1 PHE C 143 81.488 74.344 35.435 1.00 86.76 ATOM 58 CE2 PHE C 143 83.032 76.029 36.242 1.00 86.74 ATOM 59 CZ PHE C 143 81.749 75.458 36.242 1.00 87.58 ATOM 60 N CYS C 144 84.619 70.712 35.653 1.00 62.10 ATOM 61 CA CYS C 144 83.710 69.614 35.941 1.00 58.48 ATOM 62 C CYS C 144 82.452 70.205 36.492 1.00 56.34 ATOM 63 O CYS C 144 82.488 71.187 37.218 1.00 56.24 ATOM 64 CB CYS C 144 84.293 68.631 36.958 1.00 55.09 ATOM 65 SG CYS C 144 85.493 67.447 36.281 1.00 53.57 ATOM 66 N PRO C 145 81.318 69.617 36.137 1.00 55.30 ATOM 67 CA PRO C 145 79.994 70.044 36.569 1.00 56.02 ATOM 68 C PRO C 145 79.588 69.530 37.932 1.00 56.05 ATOM 69 O PRO C 145 80.193 68.618 38.467 1.00 56.12 ATOM 70 CB PRO C 145 79.097 69.498 35.469 1.00 55.72 ATOM 71 CG PRO C 145 79.771 68.222 35.122 1.00 55.42 ATOM 72 CD PRO C 145 81.216 68.632 35.051 1.00 55.01 ATOM 73 N GLY C 146 78.537 70.127 38.473 1.00 57.37 ATOM 74 CA GLY C 146 78.016 69.727 39.764 1.00 58.09 ATOM 75 C GLY C 146 79.079 69.449 40.798 1.00 58.81 ATOM 76 O GLY C 146 80.018 70.219 40.962 1.00 61.48 ATOM 77 N SER C 147 78.937 68.329 41.485 1.00 58.35 ATOM 78 CA SER C 147 79.875 67.958 42.526 1.00 58.09 ATOM 79 C SER C 147 81.055 67.187 41.974 1.00 56.14 ATOM 80 O SER C 147 82.060 67.010 42.666 1.00 54.99 ATOM 81 CB SER C 147 79.158 67.098 43.568 1.00 60.95 ATOM 82 OG SER C 147 77.961 67.730 44.015 1.00 66.56 ATOM 83 N SER C 148 80.930 66.719 40.736 1.00 53.45 ATOM 84 CA SER C 148 82.000 65.947 40.132 1.00 51.44 ATOM 85 C SER C 148 83.346 66.657 40.291 1.00 50.96 ATOM 86 O SER C 148 83.411 67.883 40.395 1.00 50.87 ATOM 87 CB SER C 148 81.711 65.674 38.651 1.00 50.21 ATOM 88 OG SER C 148 82.138 66.727 37.818 1.00 51.90 ATOM 89 N THR C 149 84.410 65.863 40.313 1.00 49.94 ATOM 90 CA THR C 149 85.768 66.335 40.483 1.00 48.06 ATOM 91 C THR C 149 86.551 65.846 39.292 1.00 46.34 ATOM 92 O THR C 149 86.088 64.967 38.588 1.00 45.48 ATOM 93 CB THR C 149 86.351 65.708 41.748 1.00 50.08 ATOM 94 OG1 THR C 149 85.683 66.267 42.887 1.00 53.14 ATOM 95 CG2 THR C 149 87.874 65.906 41.833 1.00 50.98 ATOM 96 N CYS C 150 87.729 66.406 39.053 1.00 45.34 ATOM 97 CA CYS C 150 88.534 65.938 37.934 1.00 44.40 ATOM 98 C CYS C 150 89.484 64.822 38.389 1.00 42.44 ATOM 99 O CYS C 150 89.919 64.803 39.546 1.00 41.71 ATOM 100 CB CYS C 150 89.336 67.077 37.342 1.00 47.17 ATOM 101 SG CYS C 150 90.032 66.584 35.741 1.00 53.62 ATOM 102 N VAL C 151 89.807 63.908 37.481 1.00 38.89 ATOM 103 CA VAL C 151 90.665 62.779 37.798 1.00 37.09 ATOM 104 C VAL C 151 91.250 62.253 36.495 1.00 36.62 ATOM 105 O VAL C 151 90.666 62.492 35.443 1.00 38.59 ATOM 106 CB VAL C 151 89.814 61.678 38.484 1.00 36.27 ATOM 107 CG1 VAL C 151 90.422 60.332 38.299 1.00 38.18 ATOM 108 CG2 VAL C 151 89.705 61.945 39.941 1.00 36.41 ATOM 109 N VAL C 152 92.378 61.548 36.547 1.00 34.32 ATOM 110 CA VAL C 152 92.993 61.000 35.337 1.00 35.28 ATOM 111 C VAL C 152 93.472 59.559 35.534 1.00 37.48 ATOM 112 O VAL C 152 93.726 59.133 36.667 1.00 37.48 ATOM 113 CB VAL C 152 94.199 61.863 34.887 1.00 35.82 ATOM 114 CG1 VAL C 152 93.768 63.329 34.758 1.00 33.63 ATOM 115 CG2 VAL C 152 95.353 61.723 35.882 1.00 33.67 ATOM 116 N ASP C 153 93.614 58.810 34.442 1.00 39.43 ATOM 117 CA ASP C 153 94.037 57.412 34.515 1.00 41.99 ATOM 118 C ASP C 153 95.449 57.100 34.045 1.00 44.43 ATOM 119 O ASP C 153 96.207 57.973 33.635 1.00 45.67 ATOM 120 CB ASP C 153 93.083 56.517 33.734 1.00 43.87 ATOM 121 CG ASP C 153 92.908 56.966 32.278 1.00 47.01 ATOM 122 OD1 ASP C 153 93.874 57.458 31.666 1.00 48.11 ATOM 123 OD2 ASP C 153 91.794 56.817 31.729 1.00 47.62 ATOM 124 N GLN C 154 95.787 55.818 34.094 1.00 47.51 ATOM 125 CA GLN C 154 97.103 55.353 33.718 1.00 50.21 ATOM 126 C GLN C 154 97.618 55.973 32.435 1.00 52.44 ATOM 127 O GLN C 154 98.826 56.168 32.301 1.00 54.93 ATOM 128 CB GLN C 154 97.119 53.830 33.580 1.00 50.91 ATOM 129 CG GLN C 154 96.514 53.307 32.271 1.00 54.58 ATOM 130 CD GLN C 154 95.101 52.817 32.445 1.00 55.60 ATOM 131 OE1 GLN C 154 94.365 53.296 33.302 1.00 59.30 ATOM 132 NE2 GLN C 154 94.704 51.858 31.611 1.00 54.90 ATOM 133 N THR C 155 96.726 56.273 31.492 1.00 54.01 ATOM 134 CA THR C 155 97.154 56.862 30.214 1.00 55.22 ATOM 135 C THR C 155 96.913 58.367 30.166 1.00 55.37 ATOM 136 O THR C 155 97.048 59.005 29.143 1.00 55.27 ATOM 137 CB THR C 155 96.463 56.172 29.024 1.00 55.27 ATOM 138 OG1 THR C 155 95.045 56.286 29.155 1.00 56.97 ATOM 139 CG2 THR C 155 96.810 54.701 28.995 1.00 57.11 ATOM 140 N ASN C 156 96.545 58.912 31.303 1.00 57.26 ATOM 141 CA ASN C 156 96.332 60.325 31.459 1.00 59.35 ATOM 142 C ASN C 156 95.147 60.931 30.770 1.00 58.30 ATOM 143 O ASN C 156 95.298 61.865 29.998 1.00 59.00 ATOM 144 CB ASN C 156 97.582 61.083 31.056 1.00 64.35 ATOM 145 CG ASN C 156 97.791 62.323 31.897 1.00 70.51 ATOM 146 OD1 ASN C 156 96.944 63.218 31.930 1.00 74.36 ATOM 147 ND2 ASN C 156 98.917 62.381 32.602 1.00 73.53 ATOM 148 N ASN C 157 93.962 60.415 31.055 1.00 56.93 ATOM 149 CA ASN C 157 92.748 60.969 30.483 1.00 54.74 ATOM 150 C ASN C 157 91.920 61.526 31.618 1.00 52.10 ATOM 151 O ASN C 157 91.724 60.857 32.623 1.00 51.40 ATOM 152 CB ASN C 157 91.952 59.885 29.776 1.00 56.38 ATOM 153 CG ASN C 157 92.761 59.172 28.732 1.00 59.27 ATOM 154 OD1 ASN C 157 93.458 59.803 27.933 1.00 60.91 ATOM 155 ND2 ASN C 157 92.672 57.845 28.718 1.00 59.12 ATOM 156 N ALA C 158 91.444 62.748 31.476 1.00 48.99 ATOM 157 CA ALA C 158 90.620 63.309 32.533 1.00 47.41 ATOM 158 C ALA C 158 89.216 62.716 32.497 1.00 46.06 ATOM 159 O ALA C 158 88.745 62.252 31.465 1.00 45.77 ATOM 160 CB ALA C 158 90.547 64.805 32.397 1.00 47.55 ATOM 161 N TYR C 159 88.558 62.741 33.637 1.00 43.70 ATOM 162 CA TYR C 159 87.221 62.228 33.752 1.00 43.39 ATOM 163 C TYR C 159 86.586 63.024 34.861 1.00 44.48 ATOM 164 O TYR C 159 87.258 63.325 35.846 1.00 45.53 ATOM 165 CB TYR C 159 87.245 60.768 34.183 1.00 42.01 ATOM 166 CG TYR C 159 87.751 59.797 33.157 1.00 41.93 ATOM 167 CD1 TYR C 159 86.974 59.450 32.053 1.00 42.60 ATOM 168 CD2 TYR C 159 88.997 59.204 33.296 1.00 41.47 ATOM 169 CE1 TYR C 159 87.431 58.533 31.109 1.00 43.11 ATOM 170 CE2 TYR C 159 89.467 58.294 32.369 1.00 42.98 ATOM 171 CZ TYR C 159 88.681 57.954 31.266 1.00 43.56 ATOM 172 OH TYR C 159 89.135 57.030 30.334 1.00 41.86 ATOM 173 N CYS C 160 85.327 63.414 34.714 1.00 44.52 ATOM 174 CA CYS C 160 84.686 64.095 35.827 1.00 45.49 ATOM 175 C CYS C 160 84.002 62.975 36.608 1.00 44.32 ATOM 176 O CYS C 160 83.306 62.146 36.050 1.00 43.85 ATOM 177 CB CYS C 160 83.705 65.146 35.363 1.00 47.04 ATOM 178 SG CYS C 160 84.588 66.570 34.689 1.00 51.96 ATOM 179 N VAL C 161 84.216 62.963 37.907 1.00 43.11 ATOM 180 CA VAL C 161 83.725 61.896 38.734 1.00 42.75 ATOM 181 C VAL C 161 83.277 62.414 40.094 1.00 44.38 ATOM 182 O VAL C 161 83.549 63.551 40.453 1.00 43.96 ATOM 183 CB VAL C 161 84.874 60.892 38.899 1.00 40.93 ATOM 184 CG1 VAL C 161 84.506 59.811 39.811 1.00 42.09 ATOM 185 CG2 VAL C 161 85.235 60.332 37.561 1.00 39.70 ATOM 186 N THR C 162 82.575 61.582 40.850 1.00 47.35 ATOM 187 CA THR C 162 82.134 62.008 42.153 1.00 51.94 ATOM 188 C THR C 162 82.888 61.206 43.190 1.00 52.64 ATOM 189 O THR C 162 82.937 59.981 43.128 1.00 53.81 ATOM 190 CB THR C 162 80.610 61.800 42.309 1.00 54.18 ATOM 191 OG1 THR C 162 79.933 62.586 41.319 1.00 60.11 ATOM 192 CG2 THR C 162 80.157 62.255 43.690 1.00 53.08 TER