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 25 GLU THR CYS GLU ASN VAL ASP CYS GLY PRO GLY LYS LYS SEQRES 2 C 25 CYS ARG MET ASN LYS LYS ASN LYS PRO ARG CYS VAL ATOM 1 N GLU C 64 56.750 46.528 3.618 1.00 93.66 ATOM 2 CA GLU C 64 57.480 47.100 2.486 1.00 95.46 ATOM 3 C GLU C 64 57.438 48.631 2.634 1.00 95.69 ATOM 4 O GLU C 64 58.219 49.360 2.009 1.00 94.30 ATOM 5 CB GLU C 64 56.859 46.653 1.150 1.00 96.82 ATOM 6 CG GLU C 64 57.863 46.694 -0.014 1.00 99.36 ATOM 7 CD GLU C 64 57.368 45.998 -1.283 1.00100.99 ATOM 8 OE1 GLU C 64 56.578 45.029 -1.174 1.00101.16 ATOM 9 OE2 GLU C 64 57.793 46.411 -2.392 1.00101.53 ATOM 10 N THR C 65 56.521 49.093 3.490 1.00 96.93 ATOM 11 CA THR C 65 56.332 50.519 3.791 1.00 98.28 ATOM 12 C THR C 65 56.691 50.762 5.254 1.00 99.07 ATOM 13 O THR C 65 57.179 49.867 5.945 1.00 99.37 ATOM 14 CB THR C 65 54.858 50.977 3.637 1.00 98.04 ATOM 15 OG1 THR C 65 54.084 50.488 4.747 1.00 98.19 ATOM 16 CG2 THR C 65 54.262 50.456 2.342 1.00 98.08 ATOM 17 N CYS C 66 56.416 51.971 5.729 1.00 99.75 ATOM 18 CA CYS C 66 56.705 52.312 7.112 1.00100.73 ATOM 19 C CYS C 66 55.448 52.486 7.968 1.00101.19 ATOM 20 O CYS C 66 55.535 53.088 9.038 1.00101.75 ATOM 21 CB CYS C 66 57.509 53.619 7.184 1.00101.64 ATOM 22 SG CYS C 66 59.321 53.602 6.886 1.00102.76 ATOM 23 N GLU C 67 54.288 51.977 7.546 1.00101.47 ATOM 24 CA GLU C 67 53.124 52.212 8.397 1.00101.66 ATOM 25 C GLU C 67 53.004 51.407 9.670 1.00101.75 ATOM 26 O GLU C 67 53.010 50.161 9.691 1.00101.85 ATOM 27 CB GLU C 67 51.789 52.127 7.659 1.00101.64 ATOM 28 CG GLU C 67 50.667 52.660 8.581 1.00101.64 ATOM 29 CD GLU C 67 49.417 53.095 7.844 1.00102.07 ATOM 30 OE1 GLU C 67 49.481 53.222 6.603 1.00102.15 ATOM 31 OE2 GLU C 67 48.376 53.323 8.509 1.00103.05 ATOM 32 N ASN C 68 52.857 52.192 10.730 1.00101.43 ATOM 33 CA ASN C 68 52.729 51.730 12.093 1.00101.97 ATOM 34 C ASN C 68 53.896 50.846 12.516 1.00102.35 ATOM 35 O ASN C 68 53.743 49.852 13.244 1.00101.91 ATOM 36 CB ASN C 68 51.363 51.075 12.298 1.00101.95 ATOM 37 CG ASN C 68 50.219 52.061 12.042 1.00102.03 ATOM 38 OD1 ASN C 68 50.343 53.259 12.336 1.00101.66 ATOM 39 ND2 ASN C 68 49.105 51.562 11.501 1.00100.99 ATOM 40 N VAL C 69 55.067 51.253 12.018 1.00102.34 ATOM 41 CA VAL C 69 56.342 50.639 12.344 1.00101.81 ATOM 42 C VAL C 69 56.693 51.418 13.614 1.00101.77 ATOM 43 O VAL C 69 57.040 52.603 13.537 1.00101.69 ATOM 44 CB VAL C 69 57.418 50.949 11.255 1.00101.60 ATOM 45 CG1 VAL C 69 58.811 50.913 11.865 1.00101.45 ATOM 46 CG2 VAL C 69 57.332 49.937 10.121 1.00101.96 ATOM 47 N ASP C 70 56.565 50.793 14.781 1.00101.61 ATOM 48 CA ASP C 70 56.890 51.494 16.015 1.00101.18 ATOM 49 C ASP C 70 58.332 51.217 16.427 1.00100.58 ATOM 50 O ASP C 70 58.682 50.098 16.824 1.00100.79 ATOM 51 CB ASP C 70 55.932 51.108 17.149 1.00101.42 ATOM 52 CG ASP C 70 56.184 51.919 18.422 1.00103.02 ATOM 53 OD1 ASP C 70 56.689 53.064 18.307 1.00102.64 ATOM 54 OD2 ASP C 70 55.868 51.423 19.534 1.00103.32 ATOM 55 N CYS C 71 59.164 52.252 16.322 1.00 98.98 ATOM 56 CA CYS C 71 60.573 52.144 16.659 1.00 97.97 ATOM 57 C CYS C 71 60.860 52.456 18.134 1.00 97.50 ATOM 58 O CYS C 71 61.780 51.891 18.734 1.00 97.27 ATOM 59 CB CYS C 71 61.389 53.093 15.777 1.00 97.48 ATOM 60 SG CYS C 71 61.246 52.895 13.966 1.00 97.04 ATOM 61 N GLY C 72 60.068 53.357 18.710 1.00 96.87 ATOM 62 CA GLY C 72 60.261 53.750 20.098 1.00 95.97 ATOM 63 C GLY C 72 60.750 55.186 20.121 1.00 95.60 ATOM 64 O GLY C 72 60.934 55.771 19.050 1.00 94.71 ATOM 65 N PRO C 73 60.951 55.804 21.300 1.00 96.09 ATOM 66 CA PRO C 73 61.433 57.183 21.124 1.00 96.17 ATOM 67 C PRO C 73 62.848 57.174 20.553 1.00 96.24 ATOM 68 O PRO C 73 63.545 56.159 20.623 1.00 96.01 ATOM 69 CB PRO C 73 61.338 57.795 22.533 1.00 96.06 ATOM 70 CG PRO C 73 61.245 56.619 23.478 1.00 96.14 ATOM 71 CD PRO C 73 60.571 55.510 22.697 1.00 96.17 ATOM 72 N GLY C 74 63.253 58.283 19.948 1.00 96.63 ATOM 73 CA GLY C 74 64.589 58.345 19.397 1.00 97.85 ATOM 74 C GLY C 74 64.819 57.613 18.090 1.00 98.43 ATOM 75 O GLY C 74 65.825 57.867 17.441 1.00 99.12 ATOM 76 N LYS C 75 63.948 56.683 17.703 1.00 98.44 ATOM 77 CA LYS C 75 64.158 56.019 16.423 1.00 97.99 ATOM 78 C LYS C 75 62.968 56.290 15.500 1.00 98.73 ATOM 79 O LYS C 75 61.809 56.215 15.918 1.00 99.38 ATOM 80 CB LYS C 75 64.429 54.518 16.610 1.00 96.61 ATOM 81 CG LYS C 75 65.806 54.251 17.235 1.00 93.54 ATOM 82 CD LYS C 75 66.280 52.799 17.136 1.00 91.21 ATOM 83 CE LYS C 75 65.273 51.838 17.741 1.00 90.33 ATOM 84 NZ LYS C 75 64.606 52.413 18.946 1.00 88.11 ATOM 85 N LYS C 76 63.277 56.658 14.256 1.00 98.93 ATOM 86 CA LYS C 76 62.271 56.974 13.255 1.00 98.98 ATOM 87 C LYS C 76 62.448 56.040 12.063 1.00 99.91 ATOM 88 O LYS C 76 63.463 55.353 11.951 1.00100.59 ATOM 89 CB LYS C 76 62.420 58.432 12.818 1.00 97.94 ATOM 90 N CYS C 77 61.463 56.015 11.172 1.00100.49 ATOM 91 CA CYS C 77 61.528 55.160 9.994 1.00100.64 ATOM 92 C CYS C 77 62.040 55.954 8.813 1.00100.56 ATOM 93 O CYS C 77 61.407 56.918 8.379 1.00100.94 ATOM 94 CB CYS C 77 60.142 54.605 9.663 1.00101.26 ATOM 95 SG CYS C 77 60.080 53.055 8.696 1.00102.20 ATOM 96 N ARG C 78 63.198 55.562 8.306 1.00100.69 ATOM 97 CA ARG C 78 63.759 56.234 7.146 1.00100.98 ATOM 98 C ARG C 78 63.769 55.284 5.969 1.00100.35 ATOM 99 O ARG C 78 64.460 54.256 5.978 1.00101.17 ATOM 100 CB ARG C 78 65.178 56.740 7.415 1.00101.36 ATOM 101 CG ARG C 78 65.210 58.007 8.234 1.00101.88 ATOM 102 CD ARG C 78 64.545 59.191 7.531 1.00101.55 ATOM 103 NE ARG C 78 64.577 60.415 8.339 1.00102.60 ATOM 104 CZ ARG C 78 65.404 60.646 9.369 1.00102.44 ATOM 105 NH1 ARG C 78 66.299 59.739 9.761 1.00101.73 ATOM 106 NH2 ARG C 78 65.338 61.805 10.013 1.00101.94 ATOM 107 N MET C 79 62.972 55.623 4.963 1.00 98.95 ATOM 108 CA MET C 79 62.916 54.812 3.769 1.00 97.55 ATOM 109 C MET C 79 64.326 54.762 3.172 1.00 97.50 ATOM 110 O MET C 79 65.064 55.757 3.157 1.00 97.27 ATOM 111 CB MET C 79 61.885 55.378 2.782 1.00 96.22 ATOM 112 CG MET C 79 60.448 54.953 3.120 1.00 94.07 ATOM 113 SD MET C 79 60.285 53.139 3.254 1.00 92.71 ATOM 114 CE MET C 79 58.499 52.940 3.407 1.00 90.36 ATOM 115 N ASN C 80 64.672 53.572 2.696 1.00 97.05 ATOM 116 CA ASN C 80 65.980 53.234 2.142 1.00 96.64 ATOM 117 C ASN C 80 66.466 53.589 0.743 1.00 97.44 ATOM 118 O ASN C 80 65.792 54.246 -0.065 1.00 98.14 ATOM 119 CB ASN C 80 66.184 51.728 2.262 1.00 95.08 ATOM 120 CG ASN C 80 66.638 51.310 3.625 1.00 94.07 ATOM 121 OD1 ASN C 80 67.278 52.081 4.342 1.00 93.67 ATOM 122 ND2 ASN C 80 66.333 50.068 3.992 1.00 92.47 ATOM 123 N LYS C 81 67.674 53.065 0.497 1.00 98.32 ATOM 124 CA LYS C 81 68.421 53.163 -0.761 1.00 98.54 ATOM 125 C LYS C 81 67.865 52.067 -1.678 1.00 97.82 ATOM 126 O LYS C 81 68.146 52.035 -2.883 1.00 98.60 ATOM 127 CB LYS C 81 69.918 52.909 -0.506 1.00 99.98 ATOM 128 N LYS C 82 67.087 51.169 -1.080 1.00 97.36 ATOM 129 CA LYS C 82 66.468 50.056 -1.788 1.00 95.07 ATOM 130 C LYS C 82 64.997 49.978 -1.384 1.00 94.72 ATOM 131 O LYS C 82 64.246 49.119 -1.856 1.00 92.95 ATOM 132 CB LYS C 82 67.173 48.758 -1.408 1.00 92.90 ATOM 133 N ASN C 83 64.611 50.880 -0.491 1.00 93.84 ATOM 134 CA ASN C 83 63.253 50.965 0.012 1.00 93.65 ATOM 135 C ASN C 83 62.797 49.849 0.972 1.00 93.05 ATOM 136 O ASN C 83 61.809 49.150 0.721 1.00 95.20 ATOM 137 CB ASN C 83 62.261 51.070 -1.154 1.00 93.27 ATOM 138 CG ASN C 83 60.832 51.209 -0.677 1.00 93.45 ATOM 139 OD1 ASN C 83 60.576 51.317 0.539 1.00 93.89 ATOM 140 ND2 ASN C 83 59.888 51.205 -1.608 1.00 92.85 ATOM 141 N LYS C 84 63.533 49.687 2.061 1.00 93.62 ATOM 142 CA LYS C 84 63.147 48.738 3.086 1.00 94.17 ATOM 143 C LYS C 84 63.050 49.591 4.345 1.00 94.68 ATOM 144 O LYS C 84 63.867 50.509 4.548 1.00 94.77 ATOM 145 CB LYS C 84 64.170 47.594 3.232 1.00 95.58 ATOM 146 CG LYS C 84 63.850 46.400 2.318 1.00 96.82 ATOM 147 CD LYS C 84 64.657 45.160 2.661 1.00 97.93 ATOM 148 CE LYS C 84 64.423 44.048 1.640 1.00 98.82 ATOM 149 NZ LYS C 84 65.200 42.811 1.984 1.00 99.48 ATOM 150 N PRO C 85 62.033 49.352 5.192 1.00 94.16 ATOM 151 CA PRO C 85 61.885 50.149 6.419 1.00 93.96 ATOM 152 C PRO C 85 62.978 49.889 7.456 1.00 94.51 ATOM 153 O PRO C 85 63.102 48.778 7.999 1.00 95.14 ATOM 154 CB PRO C 85 60.483 49.792 6.926 1.00 93.43 ATOM 155 CG PRO C 85 60.122 48.518 6.251 1.00 92.79 ATOM 156 CD PRO C 85 60.898 48.439 4.969 1.00 93.47 ATOM 157 N ARG C 86 63.782 50.915 7.719 1.00 94.30 ATOM 158 CA ARG C 86 64.852 50.783 8.692 1.00 94.10 ATOM 159 C ARG C 86 64.712 51.878 9.746 1.00 93.68 ATOM 160 O ARG C 86 64.720 53.070 9.418 1.00 94.31 ATOM 161 CB ARG C 86 66.213 50.873 7.991 1.00 94.23 ATOM 162 N CYS C 87 64.550 51.464 11.003 1.00 91.66 ATOM 163 CA CYS C 87 64.439 52.409 12.111 1.00 89.98 ATOM 164 C CYS C 87 65.808 53.043 12.375 1.00 87.76 ATOM 165 O CYS C 87 66.712 52.364 12.860 1.00 88.42 ATOM 166 CB CYS C 87 64.007 51.701 13.400 1.00 91.25 ATOM 167 SG CYS C 87 62.275 51.176 13.561 1.00 94.61 ATOM 168 N VAL C 88 65.976 54.322 12.059 1.00 84.19 ATOM 169 CA VAL C 88 67.246 54.980 12.327 1.00 82.14 ATOM 170 C VAL C 88 67.149 55.711 13.662 1.00 82.24 ATOM 171 O VAL C 88 66.063 55.831 14.225 1.00 81.37 ATOM 172 CB VAL C 88 67.610 55.999 11.234 1.00 80.74 ATOM 173 CG1 VAL C 88 68.172 55.282 10.023 1.00 80.54 ATOM 174 CG2 VAL C 88 66.391 56.802 10.861 1.00 79.66 TER