HEADER LIGASE 31-DEC-69 4CA1 TITLE Crystal structure of Siah1 at 1.58 A resolution. COMPND MOL_ID: 1; COMPND 2 MOLECULE: E3 UBIQUITIN-PROTEIN LIGASE SIAH1; COMPND 3 CHAIN: A, B; COMPND 4 EC: 6.3.2.-; COMPND 5 FRAGMENT: TWO ZINC FINGERS AND SUBSTRATE BINDING DOMAIN, RESIDUES ; COMPND 6 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 1.58 ANGSTORMS DBREF 4CA1 A 91 282 UNP Q8IUQ4 SIAH1_HUMAN 91 282 SEQRES 1 A 30 ARG PRO TYR SER CYS PRO CYS PRO GLY ALA SER CYS LYS SEQRES 2 A 30 TRP GLN GLY SER LEU ASP ALA VAL MET PRO HIS LEU MET SEQRES 3 A 30 HIS GLN HIS LYS ATOM 1 N ARG A 37 14.779 -2.052 9.485 1.00 31.20 ATOM 2 CA ARG A 37 14.866 -0.887 10.354 1.00 29.81 ATOM 3 C ARG A 37 15.107 0.433 9.552 1.00 28.79 ATOM 4 O ARG A 37 16.052 0.513 8.788 1.00 28.84 ATOM 5 CB ARG A 37 16.009 -1.055 11.327 1.00 33.42 ATOM 6 CG ARG A 37 16.115 0.170 12.217 1.00 26.63 ATOM 7 CD ARG A 37 17.150 -0.079 13.265 1.00 32.03 ATOM 8 NE ARG A 37 17.177 1.102 14.137 1.00 30.26 ATOM 9 CZ ARG A 37 18.088 1.280 15.065 1.00 35.19 ATOM 10 NH1 ARG A 37 18.993 0.320 15.234 1.00 39.21 ATOM 11 NH2 ARG A 37 18.080 2.389 15.799 1.00 33.85 ATOM 12 N PRO A 38 14.232 1.430 9.694 1.00 26.90 ATOM 13 CA PRO A 38 14.394 2.653 8.911 1.00 26.98 ATOM 14 C PRO A 38 15.307 3.697 9.576 1.00 24.66 ATOM 15 O PRO A 38 15.330 3.884 10.843 1.00 28.90 ATOM 16 CB PRO A 38 12.953 3.215 8.818 1.00 30.54 ATOM 17 CG PRO A 38 12.305 2.729 10.082 1.00 38.29 ATOM 18 CD PRO A 38 12.930 1.405 10.415 1.00 35.63 ATOM 19 N TYR A 39 16.035 4.395 8.735 1.00 25.25 ATOM 20 CA TYR A 39 16.868 5.529 9.224 1.00 25.51 ATOM 21 C TYR A 39 16.486 6.758 8.414 1.00 27.92 ATOM 22 O TYR A 39 16.220 6.660 7.195 1.00 28.61 ATOM 23 CB TYR A 39 18.346 5.219 9.005 1.00 25.67 ATOM 24 CG TYR A 39 18.872 4.191 9.962 1.00 21.89 ATOM 25 CD1 TYR A 39 18.626 2.829 9.781 1.00 27.96 ATOM 26 CD2 TYR A 39 19.613 4.585 11.078 1.00 27.36 ATOM 27 CE1 TYR A 39 19.099 1.909 10.698 1.00 25.01 ATOM 28 CE2 TYR A 39 20.077 3.655 11.983 1.00 28.23 ATOM 29 CZ TYR A 39 19.846 2.317 11.754 1.00 30.77 ATOM 30 OH TYR A 39 20.275 1.362 12.612 1.00 30.40 ATOM 31 N SER A 40 16.401 7.895 9.061 1.00 25.85 ATOM 32 CA SER A 40 16.187 9.189 8.309 1.00 27.32 ATOM 33 C SER A 40 17.480 9.726 7.657 1.00 24.83 ATOM 34 O SER A 40 18.596 9.434 8.096 1.00 25.09 ATOM 35 CB SER A 40 15.668 10.205 9.295 1.00 32.17 ATOM 36 OG SER A 40 14.433 9.727 9.812 1.00 37.85 ATOM 37 N CYS A 41 17.341 10.526 6.598 1.00 25.14 ATOM 38 CA CYS A 41 18.506 11.134 5.938 1.00 24.21 ATOM 39 C CYS A 41 19.277 11.953 6.952 1.00 21.77 ATOM 40 O CYS A 41 18.662 12.732 7.698 1.00 27.21 ATOM 41 CB CYS A 41 18.011 12.061 4.858 1.00 27.53 ATOM 42 SG CYS A 41 19.430 12.906 4.016 1.00 25.40 ATOM 43 N PRO A 42 20.583 11.722 7.056 1.00 20.00 ATOM 44 CA PRO A 42 21.310 12.393 8.153 1.00 19.42 ATOM 45 C PRO A 42 21.808 13.775 7.753 1.00 22.77 ATOM 46 O PRO A 42 22.396 14.439 8.572 1.00 28.19 ATOM 47 CB PRO A 42 22.490 11.451 8.376 1.00 18.91 ATOM 48 CG PRO A 42 22.771 10.830 6.979 1.00 19.33 ATOM 49 CD PRO A 42 21.329 10.579 6.521 1.00 19.54 ATOM 50 N CYS A 43 21.574 14.221 6.515 1.00 24.97 ATOM 51 CA CYS A 43 22.066 15.529 6.081 0.50 25.03 ATOM 52 C CYS A 43 21.226 16.656 6.776 1.00 32.61 ATOM 53 O CYS A 43 19.991 16.697 6.691 1.00 41.23 ATOM 54 CB CYS A 43 22.189 15.581 4.497 0.50 21.76 ATOM 55 SG CYS A 43 22.941 17.049 3.695 0.50 27.85 ATOM 56 N PRO A 44 21.929 17.583 7.432 1.00 29.79 ATOM 57 CA PRO A 44 21.216 18.675 8.113 1.00 40.41 ATOM 58 C PRO A 44 20.684 19.639 7.077 1.00 51.72 ATOM 59 O PRO A 44 21.266 19.737 5.966 1.00 53.72 ATOM 60 CB PRO A 44 22.304 19.315 8.970 1.00 39.33 ATOM 61 CG PRO A 44 23.565 19.031 8.213 1.00 33.57 ATOM 62 CD PRO A 44 23.376 17.702 7.537 1.00 28.59 ATOM 63 N GLY A 45 19.564 20.277 7.390 1.00 61.61 ATOM 64 CA GLY A 45 18.743 19.958 8.612 1.00 70.55 ATOM 65 C GLY A 45 17.291 19.508 8.369 1.00 54.79 ATOM 66 O GLY A 45 16.812 18.492 8.942 1.00 74.12 ATOM 67 N ALA A 46 16.598 20.234 7.485 1.00 62.14 ATOM 68 CA ALA A 46 15.135 20.075 7.291 1.00 84.18 ATOM 69 C ALA A 46 14.663 19.539 5.899 1.00102.13 ATOM 70 O ALA A 46 13.624 18.855 5.794 1.00 92.67 ATOM 71 CB ALA A 46 14.407 21.377 7.648 1.00 81.48 ATOM 72 N SER A 47 15.437 19.827 4.850 1.00 80.32 ATOM 73 CA SER A 47 15.015 19.604 3.476 1.00 75.45 ATOM 74 C SER A 47 14.501 18.165 3.232 1.00 58.46 ATOM 75 O SER A 47 13.376 17.923 2.813 1.00 61.49 ATOM 76 CB SER A 47 16.225 19.848 2.568 1.00 69.39 ATOM 77 OG SER A 47 17.427 19.365 3.177 1.00 86.79 ATOM 78 N CYS A 48 15.345 17.203 3.558 1.00 51.60 ATOM 79 CA CYS A 48 15.239 15.882 2.924 1.00 39.37 ATOM 80 C CYS A 48 14.393 14.944 3.765 1.00 35.56 ATOM 81 O CYS A 48 14.652 14.787 4.984 1.00 39.36 ATOM 82 CB CYS A 48 16.629 15.259 2.661 1.00 30.30 ATOM 83 SG CYS A 48 16.510 13.653 1.768 1.00 29.98 ATOM 84 N LYS A 49 13.372 14.333 3.155 0.50 36.28 ATOM 85 CA LYS A 49 12.479 13.448 3.897 0.50 34.58 ATOM 86 C LYS A 49 12.716 11.983 3.617 0.50 32.90 ATOM 87 O LYS A 49 11.885 11.135 3.992 0.50 33.49 ATOM 88 CB LYS A 49 10.998 13.800 3.640 0.50 40.47 ATOM 89 CG LYS A 49 10.695 15.285 3.718 0.50 42.98 ATOM 90 CD LYS A 49 10.822 15.786 5.144 0.50 46.66 ATOM 91 CE LYS A 49 10.252 17.206 5.250 0.50 49.38 ATOM 92 NZ LYS A 49 8.936 17.270 4.571 0.50 39.88 ATOM 93 N TRP A 50 13.833 11.665 2.966 1.00 26.97 ATOM 94 CA TRP A 50 14.161 10.255 2.702 1.00 28.50 ATOM 95 C TRP A 50 14.316 9.431 3.996 1.00 28.08 ATOM 96 O TRP A 50 14.776 9.918 5.043 1.00 27.50 ATOM 97 CB TRP A 50 15.418 10.178 1.886 1.00 31.43 ATOM 98 CG TRP A 50 15.961 8.796 1.591 1.00 23.89 ATOM 99 CD1 TRP A 50 15.784 8.071 0.461 1.00 32.27 ATOM 100 CD2 TRP A 50 16.812 8.012 2.444 1.00 24.89 ATOM 101 NE1 TRP A 50 16.478 6.871 0.530 1.00 29.80 ATOM 102 CE2 TRP A 50 17.124 6.809 1.744 1.00 25.93 ATOM 103 CE3 TRP A 50 17.375 8.229 3.721 1.00 22.91 ATOM 104 CZ2 TRP A 50 17.953 5.778 2.305 1.00 23.95 ATOM 105 CZ3 TRP A 50 18.192 7.183 4.291 1.00 25.09 ATOM 106 CH2 TRP A 50 18.483 5.996 3.568 1.00 26.83 ATOM 107 N GLN A 51 13.818 8.210 3.923 1.00 27.38 ATOM 108 CA GLN A 51 14.103 7.197 4.912 1.00 27.30 ATOM 109 C GLN A 51 14.475 5.885 4.199 1.00 25.52 ATOM 110 O GLN A 51 14.007 5.572 3.089 1.00 30.21 ATOM 111 CB GLN A 51 12.891 6.956 5.791 1.00 36.92 ATOM 112 CG GLN A 51 12.468 8.157 6.600 1.00 37.94 ATOM 113 CD GLN A 51 11.399 7.788 7.630 1.00 50.57 ATOM 114 OE1 GLN A 51 11.007 6.617 7.755 1.00 45.44 ATOM 115 NE2 GLN A 51 10.907 8.790 8.358 1.00 63.20 ATOM 116 N GLY A 52 15.386 5.125 4.829 1.00 26.04 ATOM 117 CA GLY A 52 15.793 3.825 4.232 1.00 25.13 ATOM 118 C GLY A 52 16.639 3.005 5.204 1.00 21.72 ATOM 119 O GLY A 52 16.845 3.412 6.342 1.00 23.76 ATOM 120 N SER A 53 17.145 1.864 4.756 1.00 24.14 ATOM 121 CA SER A 53 17.946 1.006 5.608 1.00 21.66 ATOM 122 C SER A 53 19.303 1.650 5.914 1.00 20.29 ATOM 123 O SER A 53 19.751 2.574 5.171 1.00 20.38 ATOM 124 CB SER A 53 18.117 -0.394 4.959 1.00 28.71 ATOM 125 OG SER A 53 19.116 -0.266 3.982 1.00 32.90 ATOM 126 N LEU A 54 19.995 1.168 6.967 1.00 19.43 ATOM 127 CA LEU A 54 21.303 1.719 7.300 1.00 18.84 ATOM 128 C LEU A 54 22.290 1.603 6.143 1.00 19.20 ATOM 129 O LEU A 54 22.998 2.568 5.822 1.00 19.38 ATOM 130 CB LEU A 54 21.870 0.974 8.491 1.00 17.76 ATOM 131 CG LEU A 54 23.188 1.449 9.024 1.00 22.23 ATOM 132 CD1 LEU A 54 23.054 2.940 9.334 1.00 21.09 ATOM 133 CD2 LEU A 54 23.496 0.620 10.281 1.00 27.81 ATOM 134 N ASP A 55 22.294 0.449 5.468 1.00 19.96 ATOM 135 CA ASP A 55 23.239 0.300 4.272 1.00 18.71 ATOM 136 C ASP A 55 22.848 1.160 3.068 1.00 23.22 ATOM 137 O ASP A 55 23.675 1.319 2.146 1.00 24.77 ATOM 138 CB ASP A 55 23.291 -1.145 3.837 1.00 20.87 ATOM 139 CG ASP A 55 23.937 -2.022 4.840 1.00 34.21 ATOM 140 OD1 ASP A 55 25.036 -1.688 5.380 1.00 42.66 ATOM 141 OD2 ASP A 55 23.344 -3.082 5.084 1.00 45.20 ATOM 142 N ALA A 56 21.630 1.732 3.102 1.00 19.52 ATOM 143 CA ALA A 56 21.198 2.610 2.016 1.00 20.31 ATOM 144 C ALA A 56 21.533 4.044 2.242 1.00 20.36 ATOM 145 O ALA A 56 21.379 4.877 1.343 1.00 21.08 ATOM 146 CB ALA A 56 19.677 2.460 1.798 1.00 19.69 ATOM 147 N VAL A 57 21.997 4.400 3.443 1.00 16.89 ATOM 148 CA VAL A 57 22.255 5.813 3.746 1.00 15.06 ATOM 149 C VAL A 57 23.393 6.378 2.917 1.00 18.07 ATOM 150 O VAL A 57 23.268 7.442 2.319 1.00 16.76 ATOM 151 CB VAL A 57 22.614 5.997 5.227 1.00 14.09 ATOM 152 CG1 VAL A 57 23.019 7.477 5.520 1.00 14.25 ATOM 153 CG2 VAL A 57 21.403 5.601 6.081 1.00 19.96 ATOM 154 N MET A 58 24.543 5.709 2.879 1.00 19.00 ATOM 155 CA MET A 58 25.651 6.294 2.119 1.00 17.34 ATOM 156 C MET A 58 25.327 6.390 0.609 1.00 21.17 ATOM 157 O MET A 58 25.608 7.418 0.023 1.00 20.81 ATOM 158 CB MET A 58 27.034 5.631 2.453 1.00 19.86 ATOM 159 CG MET A 58 27.834 6.494 3.551 1.00 29.38 ATOM 160 SD MET A 58 28.625 7.964 2.748 1.00 28.58 ATOM 161 CE MET A 58 30.169 7.696 1.961 1.00 32.88 ATOM 162 N PRO A 59 24.696 5.360 0.011 1.00 21.62 ATOM 163 CA PRO A 59 24.250 5.563 -1.362 1.00 24.94 ATOM 164 C PRO A 59 23.273 6.698 -1.554 1.00 24.18 ATOM 165 O PRO A 59 23.313 7.434 -2.584 1.00 29.66 ATOM 166 CB PRO A 59 23.548 4.192 -1.704 1.00 28.82 ATOM 167 CG PRO A 59 24.357 3.228 -0.949 1.00 27.77 ATOM 168 CD PRO A 59 24.493 3.937 0.408 1.00 21.73 ATOM 169 N HIS A 60 22.358 6.834 -0.612 1.00 20.79 ATOM 170 CA HIS A 60 21.428 7.994 -0.665 1.00 18.59 ATOM 171 C HIS A 60 22.208 9.323 -0.723 1.00 21.31 ATOM 172 O HIS A 60 21.859 10.223 -1.495 1.00 23.51 ATOM 173 CB HIS A 60 20.420 7.970 0.510 1.00 20.72 ATOM 174 CG HIS A 60 19.661 9.240 0.619 1.00 21.47 ATOM 175 ND1 HIS A 60 18.696 9.593 -0.329 1.00 22.21 ATOM 176 CD2 HIS A 60 19.767 10.281 1.488 1.00 21.13 ATOM 177 CE1 HIS A 60 18.253 10.800 -0.028 1.00 27.11 ATOM 178 NE2 HIS A 60 18.887 11.240 1.067 1.00 21.74 ATOM 179 N LEU A 61 23.251 9.456 0.124 1.00 17.11 ATOM 180 CA LEU A 61 24.008 10.710 0.177 1.00 17.89 ATOM 181 C LEU A 61 24.724 10.878 -1.124 1.00 22.64 ATOM 182 O LEU A 61 24.817 12.003 -1.616 1.00 25.29 ATOM 183 CB LEU A 61 25.064 10.783 1.336 1.00 18.16 ATOM 184 CG LEU A 61 24.301 10.662 2.677 1.00 17.81 ATOM 185 CD1 LEU A 61 25.363 10.468 3.799 1.00 18.62 ATOM 186 CD2 LEU A 61 23.591 11.960 2.947 1.00 18.62 ATOM 187 N MET A 62 25.277 9.792 -1.640 1.00 26.31 ATOM 188 CA MET A 62 26.077 9.889 -2.891 1.00 35.30 ATOM 189 C MET A 62 25.204 10.255 -4.076 1.00 25.38 ATOM 190 O MET A 62 25.659 10.913 -5.013 1.00 32.85 ATOM 191 CB MET A 62 26.887 8.584 -3.104 1.00 32.02 ATOM 192 CG MET A 62 27.828 8.339 -1.898 1.00 46.09 ATOM 193 SD MET A 62 29.006 9.688 -1.495 1.00 42.68 ATOM 194 CE MET A 62 28.304 10.643 -0.096 1.00 40.66 ATOM 195 N HIS A 63 23.936 9.797 -4.077 1.00 27.52 ATOM 196 CA HIS A 63 23.077 10.058 -5.242 1.00 33.21 ATOM 197 C HIS A 63 22.216 11.321 -5.151 1.00 38.68 ATOM 198 O HIS A 63 21.976 11.960 -6.200 1.00 34.85 ATOM 199 CB HIS A 63 22.225 8.813 -5.536 1.00 38.00 ATOM 200 CG HIS A 63 23.032 7.583 -5.854 1.00 54.51 ATOM 201 ND1 HIS A 63 23.975 7.548 -6.866 1.00 70.80 ATOM 202 CD2 HIS A 63 23.016 6.339 -5.313 1.00 66.76 ATOM 203 CE1 HIS A 63 24.522 6.346 -6.913 1.00 93.80 ATOM 204 NE2 HIS A 63 23.954 5.590 -5.988 1.00 76.02 ATOM 205 N GLN A 64 21.775 11.686 -3.935 1.00 29.03 ATOM 206 CA GLN A 64 20.843 12.789 -3.757 1.00 23.25 ATOM 207 C GLN A 64 21.484 14.022 -3.153 1.00 28.27 ATOM 208 O GLN A 64 20.795 15.039 -3.113 1.00 32.17 ATOM 209 CB GLN A 64 19.632 12.320 -2.883 1.00 26.91 ATOM 210 CG GLN A 64 18.838 11.231 -3.533 1.00 41.18 ATOM 211 CD GLN A 64 18.315 11.795 -4.829 1.00 43.48 ATOM 212 OE1 GLN A 64 17.704 12.876 -4.852 1.00 56.80 ATOM 213 NE2 GLN A 64 18.623 11.123 -5.919 1.00 63.92 ATOM 214 N HIS A 65 22.734 13.930 -2.601 1.00 25.64 ATOM 215 CA HIS A 65 23.414 15.098 -2.004 1.00 21.87 ATOM 216 C HIS A 65 24.814 15.233 -2.552 1.00 25.22 ATOM 217 O HIS A 65 25.815 15.115 -1.826 1.00 23.66 ATOM 218 CB HIS A 65 23.423 14.959 -0.458 1.00 20.19 ATOM 219 CG HIS A 65 22.042 14.792 0.102 1.00 22.55 ATOM 220 ND1 HIS A 65 21.228 15.854 0.455 1.00 28.71 ATOM 221 CD2 HIS A 65 21.321 13.657 0.313 1.00 20.66 ATOM 222 CE1 HIS A 65 20.046 15.357 0.883 1.00 32.41 ATOM 223 NE2 HIS A 65 20.102 14.011 0.844 1.00 23.71 ATOM 224 N LYS A 66 24.884 15.569 -3.820 1.00 31.76 ATOM 225 CA LYS A 66 26.165 15.529 -4.535 1.00 29.26 ATOM 226 C LYS A 66 27.148 16.571 -4.113 1.00 29.43 ATOM 227 O LYS A 66 28.330 16.435 -4.431 1.00 41.44 ATOM 228 CB LYS A 66 25.952 15.596 -6.094 1.00 36.43 ATOM 229 CG LYS A 66 24.752 14.818 -6.487 1.00 46.67 ATOM 230 CD LYS A 66 25.173 13.469 -6.955 1.00 56.65 ATOM 231 CE LYS A 66 24.456 13.290 -8.276 1.00 61.45 ATOM 232 NZ LYS A 66 24.792 11.943 -8.879 1.00 81.93 TER