HEADER SIGNALING PROTEIN 31-DEC-69 6HTF TITLE Crystal structure of human Btk SH2 domain bound to rF10 repebody COMPND MOL_ID: 2; COMPND 2 MOLECULE: rF10 repebody; COMPND 3 CHAIN: B; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.10 ANGSTORMS DBREF 6HTF B 2 275 PDB 6HTF 6HTF 2 275 SEQRES 1 B 35 PRO ILE LYS GLN ILE PHE PRO ASP ASP ALA PHE ALA GLU SEQRES 2 B 35 THR ILE LYS ALA ASN LEU LYS LYS LYS SER VAL THR ASP SEQRES 3 B 35 ALA VAL THR GLN ASN GLU LEU ASN SER ATOM 1 N PRO B 9 -14.820 4.857 13.822 1.00 78.14 ATOM 2 CA PRO B 9 -14.416 6.264 13.747 1.00 71.81 ATOM 3 C PRO B 9 -15.546 7.196 13.376 1.00 73.87 ATOM 4 O PRO B 9 -16.404 6.857 12.565 1.00 77.25 ATOM 5 CB PRO B 9 -13.343 6.254 12.658 1.00 73.90 ATOM 6 CG PRO B 9 -12.769 4.875 12.750 1.00 76.24 ATOM 7 CD PRO B 9 -13.992 4.025 12.931 1.00 85.27 ATOM 8 N ILE B 10 -15.498 8.388 13.957 1.00 78.12 ATOM 9 CA ILE B 10 -16.589 9.349 13.894 1.00 80.94 ATOM 10 C ILE B 10 -16.510 10.193 12.634 1.00 82.28 ATOM 11 O ILE B 10 -16.490 11.425 12.712 1.00 93.26 ATOM 12 CB ILE B 10 -16.565 10.256 15.135 1.00 83.07 ATOM 13 CG1 ILE B 10 -15.289 11.113 15.115 1.00 76.94 ATOM 14 CG2 ILE B 10 -16.703 9.421 16.396 1.00 84.94 ATOM 15 CD1 ILE B 10 -15.483 12.556 15.597 1.00 78.01 ATOM 16 N LYS B 11 -16.466 9.558 11.469 1.00 74.57 ATOM 17 CA LYS B 11 -16.458 10.262 10.187 1.00 76.24 ATOM 18 C LYS B 11 -15.347 11.292 10.084 1.00 80.32 ATOM 19 O LYS B 11 -15.500 12.308 9.398 1.00 72.63 ATOM 20 CB LYS B 11 -17.802 10.934 9.917 1.00 66.09 ATOM 21 CG LYS B 11 -18.168 11.102 8.464 1.00 62.17 ATOM 22 CD LYS B 11 -19.588 11.629 8.331 1.00 67.21 ATOM 23 CE LYS B 11 -20.487 11.051 9.411 1.00 65.61 ATOM 24 NZ LYS B 11 -20.543 9.582 9.269 1.00 60.37 ATOM 25 N GLN B 12 -14.250 11.094 10.808 1.00 86.56 ATOM 26 CA GLN B 12 -13.010 11.768 10.465 1.00 82.30 ATOM 27 C GLN B 12 -12.158 10.896 9.571 1.00 76.07 ATOM 28 O GLN B 12 -10.959 11.144 9.405 1.00 75.55 ATOM 29 CB GLN B 12 -12.256 12.216 11.712 1.00 82.93 ATOM 30 CG GLN B 12 -12.734 13.590 12.120 1.00 91.29 ATOM 31 CD GLN B 12 -13.287 14.352 10.920 1.00 91.80 ATOM 32 OE1 GLN B 12 -12.573 14.592 9.939 1.00 82.50 ATOM 33 NE2 GLN B 12 -14.563 14.736 10.993 1.00 83.85 ATOM 34 N ILE B 13 -12.778 9.853 9.023 1.00 74.67 ATOM 35 CA ILE B 13 -12.299 9.189 7.826 1.00 67.06 ATOM 36 C ILE B 13 -12.273 10.160 6.654 1.00 62.29 ATOM 37 O ILE B 13 -11.394 10.077 5.789 1.00 59.31 ATOM 38 CB ILE B 13 -13.210 7.977 7.560 1.00 67.93 ATOM 39 CG1 ILE B 13 -13.175 7.019 8.766 1.00 70.88 ATOM 40 CG2 ILE B 13 -12.843 7.309 6.253 1.00 67.41 ATOM 41 CD1 ILE B 13 -14.400 6.122 8.914 1.00 68.67 ATOM 42 N PHE B 14 -13.209 11.110 6.618 1.00 61.92 ATOM 43 CA PHE B 14 -13.359 12.029 5.493 1.00 61.02 ATOM 44 C PHE B 14 -12.944 13.447 5.876 1.00 63.27 ATOM 45 O PHE B 14 -13.761 14.208 6.422 1.00 60.47 ATOM 46 CB PHE B 14 -14.807 12.003 5.003 1.00 58.49 ATOM 47 CG PHE B 14 -15.305 10.624 4.718 1.00 61.34 ATOM 48 CD1 PHE B 14 -15.895 9.866 5.717 1.00 65.93 ATOM 49 CD2 PHE B 14 -15.166 10.070 3.456 1.00 61.41 ATOM 50 CE1 PHE B 14 -16.347 8.581 5.457 1.00 61.51 ATOM 51 CE2 PHE B 14 -15.611 8.780 3.190 1.00 57.29 ATOM 52 CZ PHE B 14 -16.202 8.038 4.191 1.00 58.24 ATOM 53 N PRO B 15 -11.705 13.861 5.573 1.00 57.59 ATOM 54 CA PRO B 15 -11.223 15.165 6.068 1.00 54.98 ATOM 55 C PRO B 15 -11.927 16.359 5.452 1.00 55.31 ATOM 56 O PRO B 15 -12.232 17.323 6.166 1.00 56.32 ATOM 57 CB PRO B 15 -9.733 15.141 5.704 1.00 54.53 ATOM 58 CG PRO B 15 -9.408 13.688 5.467 1.00 54.26 ATOM 59 CD PRO B 15 -10.645 13.103 4.888 1.00 54.22 ATOM 60 N ASP B 16 -12.165 16.341 4.144 1.00 55.72 ATOM 61 CA ASP B 16 -12.948 17.393 3.509 1.00 51.87 ATOM 62 C ASP B 16 -14.324 17.466 4.152 1.00 54.97 ATOM 63 O ASP B 16 -15.086 16.493 4.128 1.00 56.81 ATOM 64 CB ASP B 16 -13.070 17.119 2.012 1.00 51.22 ATOM 65 CG ASP B 16 -13.663 18.285 1.248 1.00 53.23 ATOM 66 OD1 ASP B 16 -14.796 18.705 1.574 1.00 49.34 ATOM 67 OD2 ASP B 16 -12.994 18.774 0.313 1.00 50.63 ATOM 68 N ASP B 17 -14.647 18.619 4.731 1.00 47.11 ATOM 69 CA ASP B 17 -15.894 18.718 5.474 1.00 55.76 ATOM 70 C ASP B 17 -17.116 18.679 4.568 1.00 56.08 ATOM 71 O ASP B 17 -18.193 18.276 5.022 1.00 58.33 ATOM 72 CB ASP B 17 -15.904 19.988 6.323 1.00 62.45 ATOM 73 CG ASP B 17 -14.692 20.091 7.225 1.00 61.09 ATOM 74 OD1 ASP B 17 -14.112 19.038 7.582 1.00 59.23 ATOM 75 OD2 ASP B 17 -14.316 21.231 7.570 1.00 72.73 ATOM 76 N ALA B 18 -16.979 19.077 3.302 1.00 52.98 ATOM 77 CA ALA B 18 -18.107 18.967 2.382 1.00 51.43 ATOM 78 C ALA B 18 -18.356 17.515 1.991 1.00 53.69 ATOM 79 O ALA B 18 -19.511 17.083 1.894 1.00 51.86 ATOM 80 CB ALA B 18 -17.864 19.825 1.143 1.00 49.66 ATOM 81 N PHE B 19 -17.286 16.749 1.757 1.00 47.85 ATOM 82 CA PHE B 19 -17.453 15.336 1.447 1.00 46.89 ATOM 83 C PHE B 19 -18.018 14.581 2.640 1.00 50.73 ATOM 84 O PHE B 19 -18.863 13.696 2.477 1.00 47.35 ATOM 85 CB PHE B 19 -16.121 14.728 1.013 1.00 49.30 ATOM 86 CG PHE B 19 -16.242 13.352 0.401 1.00 45.09 ATOM 87 CD1 PHE B 19 -17.312 13.028 -0.419 1.00 45.39 ATOM 88 CD2 PHE B 19 -15.265 12.392 0.628 1.00 48.50 ATOM 89 CE1 PHE B 19 -17.420 11.762 -0.992 1.00 42.43 ATOM 90 CE2 PHE B 19 -15.363 11.127 0.059 1.00 50.17 ATOM 91 CZ PHE B 19 -16.444 10.813 -0.753 1.00 45.16 ATOM 92 N ALA B 20 -17.568 14.918 3.849 1.00 52.17 ATOM 93 CA ALA B 20 -18.102 14.253 5.030 1.00 55.49 ATOM 94 C ALA B 20 -19.591 14.536 5.194 1.00 52.42 ATOM 95 O ALA B 20 -20.377 13.615 5.446 1.00 55.91 ATOM 96 CB ALA B 20 -17.317 14.673 6.274 1.00 55.17 ATOM 97 N GLU B 21 -20.015 15.743 4.926 1.00 51.22 ATOM 98 CA GLU B 21 -21.411 16.073 4.961 1.00 54.79 ATOM 99 C GLU B 21 -22.097 15.255 3.917 1.00 55.44 ATOM 100 O GLU B 21 -23.228 14.918 4.055 1.00 57.90 ATOM 101 CB GLU B 21 -21.686 17.497 4.589 1.00 51.19 ATOM 102 CG GLU B 21 -21.581 18.506 5.685 1.00 60.43 ATOM 103 CD GLU B 21 -22.600 18.395 6.787 1.00 67.95 ATOM 104 OE1 GLU B 21 -23.806 18.339 6.567 1.00 75.20 ATOM 105 OE2 GLU B 21 -22.158 18.441 7.909 1.00 76.52 ATOM 106 N THR B 22 -21.447 15.030 2.810 1.00 51.47 ATOM 107 CA THR B 22 -22.066 14.220 1.767 1.00 53.45 ATOM 108 C THR B 22 -22.220 12.778 2.232 1.00 54.93 ATOM 109 O THR B 22 -23.269 12.158 2.019 1.00 56.63 ATOM 110 CB THR B 22 -21.247 14.294 0.477 1.00 50.58 ATOM 111 OG1 THR B 22 -21.328 15.618 -0.067 1.00 54.55 ATOM 112 CG2 THR B 22 -21.776 13.313 -0.549 1.00 48.61 ATOM 113 N ILE B 23 -21.243 12.257 2.918 1.00 51.43 ATOM 114 CA ILE B 23 -21.366 10.951 3.455 1.00 54.84 ATOM 115 C ILE B 23 -22.474 10.911 4.525 1.00 57.65 ATOM 116 O ILE B 23 -23.201 9.969 4.645 1.00 55.83 ATOM 117 CB ILE B 23 -20.065 10.515 4.042 1.00 56.14 ATOM 118 CG1 ILE B 23 -19.062 10.272 2.917 1.00 52.84 ATOM 119 CG2 ILE B 23 -20.296 9.323 4.931 1.00 55.76 ATOM 120 CD1 ILE B 23 -19.465 9.200 1.964 1.00 44.92 ATOM 121 N LYS B 24 -22.588 11.983 5.282 1.00 59.66 ATOM 122 CA LYS B 24 -23.584 12.090 6.308 1.00 61.09 ATOM 123 C LYS B 24 -24.917 11.969 5.700 1.00 58.43 ATOM 124 O LYS B 24 -25.684 11.198 6.146 1.00 61.45 ATOM 125 CB LYS B 24 -23.529 13.501 6.895 1.00 62.28 ATOM 126 CG LYS B 24 -24.052 13.716 8.299 1.00 65.98 ATOM 127 CD LYS B 24 -25.366 14.495 8.330 1.00 67.40 ATOM 128 CE LYS B 24 -25.260 15.787 7.547 1.00 70.32 ATOM 129 NZ LYS B 24 -26.554 16.472 7.278 1.00 71.50 ATOM 130 N ALA B 25 -25.184 12.687 4.641 1.00 57.64 ATOM 131 CA ALA B 25 -26.483 12.603 4.065 1.00 53.69 ATOM 132 C ALA B 25 -26.693 11.239 3.495 1.00 60.64 ATOM 133 O ALA B 25 -27.674 10.621 3.784 1.00 62.66 ATOM 134 CB ALA B 25 -26.661 13.651 3.024 1.00 46.59 ATOM 135 N ASN B 26 -25.709 10.726 2.776 1.00 60.17 ATOM 136 CA ASN B 26 -25.830 9.399 2.180 1.00 57.76 ATOM 137 C ASN B 26 -26.321 8.390 3.209 1.00 59.99 ATOM 138 O ASN B 26 -27.362 7.747 3.025 1.00 63.82 ATOM 139 CB ASN B 26 -24.482 8.969 1.598 1.00 55.73 ATOM 140 CG ASN B 26 -24.555 7.643 0.855 1.00 53.76 ATOM 141 OD1 ASN B 26 -24.301 6.572 1.422 1.00 47.78 ATOM 142 ND2 ASN B 26 -24.898 7.710 -0.426 1.00 51.82 ATOM 143 N LEU B 27 -25.587 8.257 4.316 1.00 57.07 ATOM 144 CA LEU B 27 -25.926 7.329 5.385 1.00 57.57 ATOM 145 C LEU B 27 -27.022 7.854 6.304 1.00 64.06 ATOM 146 O LEU B 27 -27.252 7.263 7.366 1.00 67.23 ATOM 147 CB LEU B 27 -24.678 6.997 6.206 1.00 52.83 ATOM 148 CG LEU B 27 -23.603 6.151 5.517 1.00 54.84 ATOM 149 CD1 LEU B 27 -22.350 6.071 6.380 1.00 50.86 ATOM 150 CD2 LEU B 27 -24.112 4.751 5.189 1.00 51.06 ATOM 151 N LYS B 28 -27.683 8.950 5.926 1.00 64.09 ATOM 152 CA LYS B 28 -28.787 9.535 6.681 1.00 67.80 ATOM 153 C LYS B 28 -28.398 9.867 8.121 1.00 69.77 ATOM 154 O LYS B 28 -29.270 10.042 8.975 1.00 80.94 ATOM 155 CB LYS B 28 -30.008 8.609 6.664 1.00 63.31 ATOM 156 CG LYS B 28 -30.400 8.117 5.283 1.00 66.46 ATOM 157 CD LYS B 28 -31.497 8.985 4.699 1.00 65.02 ATOM 158 CE LYS B 28 -32.417 8.194 3.778 1.00 55.68 ATOM 159 NZ LYS B 28 -31.808 7.890 2.456 1.00 65.60 ATOM 160 N LYS B 29 -27.102 9.980 8.402 1.00 67.71 ATOM 161 CA LYS B 29 -26.615 10.084 9.770 1.00 70.88 ATOM 162 C LYS B 29 -26.989 11.431 10.389 1.00 72.82 ATOM 163 O LYS B 29 -27.617 12.295 9.768 1.00 68.26 ATOM 164 CB LYS B 29 -25.101 9.880 9.814 1.00 73.53 ATOM 165 CG LYS B 29 -24.647 8.444 9.584 1.00 71.51 ATOM 166 CD LYS B 29 -25.210 7.499 10.633 1.00 73.57 ATOM 167 CE LYS B 29 -24.167 6.490 11.079 1.00 67.35 ATOM 168 NZ LYS B 29 -24.768 5.391 11.889 1.00 65.02 ATOM 169 N LYS B 30 -26.571 11.607 11.644 1.00 82.02 ATOM 170 CA LYS B 30 -26.997 12.757 12.431 1.00 79.18 ATOM 171 C LYS B 30 -26.139 13.984 12.161 1.00 74.96 ATOM 172 O LYS B 30 -26.668 15.092 12.021 1.00 72.32 ATOM 173 CB LYS B 30 -26.960 12.414 13.922 1.00 79.38 ATOM 174 CG LYS B 30 -28.200 11.697 14.429 1.00 79.30 ATOM 175 CD LYS B 30 -29.252 12.691 14.883 1.00 77.90 ATOM 176 CE LYS B 30 -30.314 12.925 13.815 1.00 72.07 ATOM 177 NZ LYS B 30 -31.356 13.881 14.283 1.00 69.01 ATOM 178 N SER B 31 -24.823 13.813 12.088 1.00 76.53 ATOM 179 CA SER B 31 -23.931 14.962 12.052 1.00 69.31 ATOM 180 C SER B 31 -22.543 14.507 11.637 1.00 70.23 ATOM 181 O SER B 31 -22.231 13.315 11.629 1.00 68.45 ATOM 182 CB SER B 31 -23.859 15.647 13.413 1.00 70.21 ATOM 183 OG SER B 31 -23.233 14.784 14.349 1.00 71.63 ATOM 184 N VAL B 32 -21.705 15.491 11.329 1.00 74.49 ATOM 185 CA VAL B 32 -20.293 15.297 11.028 1.00 72.81 ATOM 186 C VAL B 32 -19.649 14.401 12.081 1.00 77.14 ATOM 187 O VAL B 32 -18.877 13.491 11.752 1.00 76.79 ATOM 188 CB VAL B 32 -19.577 16.660 10.930 1.00 75.54 ATOM 189 CG1 VAL B 32 -20.256 17.520 9.903 1.00 71.81 ATOM 190 CG2 VAL B 32 -19.558 17.400 12.287 1.00 75.49 ATOM 191 N THR B 33 -20.000 14.629 13.353 1.00 79.26 ATOM 192 CA THR B 33 -19.348 13.985 14.487 1.00 80.45 ATOM 193 C THR B 33 -19.822 12.560 14.712 1.00 81.69 ATOM 194 O THR B 33 -19.144 11.799 15.410 1.00 84.66 ATOM 195 CB THR B 33 -19.600 14.795 15.760 1.00 82.06 ATOM 196 OG1 THR B 33 -21.015 14.931 15.960 1.00 81.41 ATOM 197 CG2 THR B 33 -18.970 16.184 15.652 1.00 74.05 ATOM 198 N ASP B 34 -20.977 12.201 14.154 1.00 80.82 ATOM 199 CA ASP B 34 -21.550 10.872 14.328 1.00 77.58 ATOM 200 C ASP B 34 -20.550 9.785 13.929 1.00 76.34 ATOM 201 O ASP B 34 -19.694 9.983 13.058 1.00 77.83 ATOM 202 CB ASP B 34 -22.837 10.779 13.495 1.00 73.69 ATOM 203 CG ASP B 34 -23.817 9.741 14.011 1.00 78.07 ATOM 204 OD1 ASP B 34 -23.376 8.721 14.568 1.00 80.37 ATOM 205 OD2 ASP B 34 -25.039 9.944 13.852 1.00 81.05 ATOM 206 N ALA B 35 -20.641 8.640 14.595 1.00 75.36 ATOM 207 CA ALA B 35 -19.731 7.540 14.329 1.00 72.58 ATOM 208 C ALA B 35 -20.311 6.620 13.261 1.00 69.07 ATOM 209 O ALA B 35 -21.533 6.520 13.085 1.00 69.19 ATOM 210 CB ALA B 35 -19.464 6.745 15.600 1.00 73.31 ATOM 211 N VAL B 36 -19.417 5.936 12.546 1.00 67.79 ATOM 212 CA VAL B 36 -19.791 5.021 11.474 1.00 61.53 ATOM 213 C VAL B 36 -18.920 3.784 11.562 1.00 59.15 ATOM 214 O VAL B 36 -17.764 3.844 11.986 1.00 61.25 ATOM 215 CB VAL B 36 -19.655 5.653 10.072 1.00 57.07 ATOM 216 CG1 VAL B 36 -20.856 6.505 9.763 1.00 60.32 ATOM 217 CG2 VAL B 36 -18.365 6.470 9.963 1.00 67.37 ATOM 218 N THR B 37 -19.490 2.660 11.158 1.00 58.35 ATOM 219 CA THR B 37 -18.768 1.406 11.086 1.00 57.67 ATOM 220 C THR B 37 -18.416 1.098 9.641 1.00 58.04 ATOM 221 O THR B 37 -18.992 1.658 8.707 1.00 57.90 ATOM 222 CB THR B 37 -19.601 0.266 11.654 1.00 56.85 ATOM 223 OG1 THR B 37 -18.949 -0.976 11.356 1.00 71.27 ATOM 224 CG2 THR B 37 -20.975 0.274 11.021 1.00 56.68 ATOM 225 N GLN B 38 -17.461 0.181 9.467 1.00 56.77 ATOM 226 CA GLN B 38 -17.131 -0.274 8.122 1.00 53.87 ATOM 227 C GLN B 38 -18.321 -0.956 7.460 1.00 58.10 ATOM 228 O GLN B 38 -18.487 -0.866 6.238 1.00 57.66 ATOM 229 CB GLN B 38 -15.936 -1.221 8.158 1.00 51.68 ATOM 230 CG GLN B 38 -15.353 -1.480 6.793 1.00 52.80 ATOM 231 CD GLN B 38 -15.068 -0.190 6.062 1.00 53.56 ATOM 232 OE1 GLN B 38 -14.343 0.665 6.564 1.00 61.03 ATOM 233 NE2 GLN B 38 -15.653 -0.029 4.880 1.00 49.52 ATOM 234 N ASN B 39 -19.162 -1.637 8.247 1.00 58.80 ATOM 235 CA ASN B 39 -20.347 -2.269 7.677 1.00 56.93 ATOM 236 C ASN B 39 -21.281 -1.240 7.054 1.00 54.87 ATOM 237 O ASN B 39 -21.912 -1.514 6.026 1.00 56.27 ATOM 238 CB ASN B 39 -21.073 -3.083 8.747 1.00 59.41 ATOM 239 CG ASN B 39 -22.143 -3.995 8.162 1.00 64.50 ATOM 240 OD1 ASN B 39 -21.895 -5.167 7.894 1.00 54.96 ATOM 241 ND2 ASN B 39 -23.343 -3.458 7.970 1.00 64.94 ATOM 242 N GLU B 40 -21.381 -0.053 7.647 1.00 54.39 ATOM 243 CA GLU B 40 -22.151 1.012 7.015 1.00 57.41 ATOM 244 C GLU B 40 -21.471 1.489 5.735 1.00 53.37 ATOM 245 O GLU B 40 -22.118 1.633 4.691 1.00 49.95 ATOM 246 CB GLU B 40 -22.344 2.166 7.996 1.00 54.75 ATOM 247 CG GLU B 40 -23.357 1.854 9.080 1.00 56.94 ATOM 248 CD GLU B 40 -23.603 3.017 10.008 1.00 57.82 ATOM 249 OE1 GLU B 40 -22.626 3.494 10.631 1.00 61.77 ATOM 250 OE2 GLU B 40 -24.775 3.441 10.119 1.00 57.36 ATOM 251 N LEU B 41 -20.159 1.720 5.796 1.00 51.00 ATOM 252 CA LEU B 41 -19.423 2.158 4.617 1.00 47.12 ATOM 253 C LEU B 41 -19.572 1.174 3.464 1.00 50.88 ATOM 254 O LEU B 41 -19.707 1.586 2.306 1.00 52.51 ATOM 255 CB LEU B 41 -17.951 2.345 4.971 1.00 51.18 ATOM 256 CG LEU B 41 -17.690 3.415 6.025 1.00 52.40 ATOM 257 CD1 LEU B 41 -16.210 3.735 6.088 1.00 55.43 ATOM 258 CD2 LEU B 41 -18.509 4.663 5.715 1.00 49.71 ATOM 259 N ASN B 42 -19.551 -0.132 3.758 1.00 51.82 ATOM 260 CA ASN B 42 -19.673 -1.136 2.704 1.00 50.14 ATOM 261 C ASN B 42 -21.038 -1.115 2.035 1.00 45.87 ATOM 262 O ASN B 42 -21.167 -1.566 0.893 1.00 47.16 ATOM 263 CB ASN B 42 -19.395 -2.531 3.263 1.00 49.79 ATOM 264 CG ASN B 42 -18.018 -2.640 3.879 1.00 55.62 ATOM 265 OD1 ASN B 42 -17.138 -1.829 3.591 1.00 52.77 ATOM 266 ND2 ASN B 42 -17.821 -3.643 4.730 1.00 49.74 ATOM 267 N SER B 43 -22.057 -0.616 2.718 1.00 44.58 ATOM 268 CA SER B 43 -23.391 -0.573 2.142 1.00 44.25 ATOM 269 C SER B 43 -23.566 0.578 1.164 1.00 46.34 ATOM 270 O SER B 43 -24.545 0.594 0.407 1.00 45.61 ATOM 271 CB SER B 43 -24.438 -0.473 3.259 1.00 49.06 ATOM 272 OG SER B 43 -24.253 0.694 4.048 1.00 50.74 TER