HEADER RIBOSOME 30-APR-09 2WH2 TITLE INSIGHTS INTO TRANSLATIONAL TERMINATION FROM THE STRUCTURE OF RF2 TITLE 2 BOUND TO THE RIBOSOME COMPND MOL_ID: 5; COMPND 2 MOLECULE: 50S RIBOSOMAL PROTEIN L31; COMPND 3 CHAIN: 4; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.45 ANGSTORMS DBREF 2WH2 4 27 97 UNP Q5SJE1 RL31_THET8 1 71 SEQRES 1 4 31 VAL PRO ALA ARG ILE ILE CYS GLY CYS GLY ASN VAL ILE SEQRES 2 4 31 GLU THR TYR SER THR LYS PRO GLU ILE TYR VAL GLU VAL SEQRES 3 4 31 CYS SER LYS CYS HIS ATOM 1 N VAL 4 36 -131.941 160.732 128.771 1.00200.79 ATOM 2 CA VAL 4 36 -133.006 161.169 127.822 1.00200.79 ATOM 3 C VAL 4 36 -133.963 160.024 127.505 1.00200.79 ATOM 4 O VAL 4 36 -133.601 158.854 127.622 1.00200.79 ATOM 5 CB VAL 4 36 -132.395 161.669 126.503 1.00200.74 ATOM 6 CG1 VAL 4 36 -131.428 162.804 126.781 1.00200.74 ATOM 7 CG2 VAL 4 36 -131.691 160.528 125.795 1.00200.74 ATOM 8 N PRO 4 37 -135.198 160.349 127.090 1.00198.52 ATOM 9 CA PRO 4 37 -136.219 159.351 126.754 1.00198.52 ATOM 10 C PRO 4 37 -135.824 158.442 125.595 1.00198.52 ATOM 11 O PRO 4 37 -136.121 158.724 124.435 1.00198.52 ATOM 12 CB PRO 4 37 -137.440 160.207 126.430 1.00200.79 ATOM 13 CG PRO 4 37 -136.827 161.442 125.852 1.00200.79 ATOM 14 CD PRO 4 37 -135.694 161.708 126.814 1.00200.79 ATOM 15 N ALA 4 38 -135.157 157.343 125.923 1.00140.24 ATOM 16 CA ALA 4 38 -134.715 156.390 124.919 1.00139.74 ATOM 17 C ALA 4 38 -135.885 155.611 124.335 1.00141.74 ATOM 18 O ALA 4 38 -136.809 155.225 125.050 1.00141.84 ATOM 19 CB ALA 4 38 -133.706 155.432 125.528 1.00199.66 ATOM 20 N ARG 4 39 -135.836 155.384 123.027 1.00127.82 ATOM 21 CA ARG 4 39 -136.882 154.639 122.344 1.00129.82 ATOM 22 C ARG 4 39 -136.271 153.654 121.356 1.00128.97 ATOM 23 O ARG 4 39 -136.050 153.980 120.187 1.00129.12 ATOM 24 CB ARG 4 39 -137.826 155.600 121.618 1.00183.10 ATOM 25 CG ARG 4 39 -138.461 156.634 122.537 1.00183.10 ATOM 26 CD ARG 4 39 -139.652 157.318 121.885 1.00183.10 ATOM 27 NE ARG 4 39 -140.709 156.366 121.558 1.00183.10 ATOM 28 CZ ARG 4 39 -141.900 156.705 121.075 1.00183.10 ATOM 29 NH1 ARG 4 39 -142.193 157.979 120.861 1.00183.10 ATOM 30 NH2 ARG 4 39 -142.798 155.768 120.802 1.00183.10 ATOM 31 N ILE 4 40 -135.992 152.448 121.844 1.00200.40 ATOM 32 CA ILE 4 40 -135.406 151.399 121.019 1.00200.40 ATOM 33 C ILE 4 40 -136.459 150.802 120.100 1.00200.40 ATOM 34 O ILE 4 40 -137.375 150.113 120.550 1.00200.40 ATOM 35 CB ILE 4 40 -134.803 150.268 121.881 1.00174.46 ATOM 36 CG1 ILE 4 40 -133.495 150.735 122.520 1.00171.84 ATOM 37 CG2 ILE 4 40 -134.540 149.042 121.027 1.00174.58 ATOM 38 CD1 ILE 4 40 -133.655 151.885 123.484 1.00171.57 ATOM 39 N ILE 4 41 -136.316 151.074 118.808 1.00200.33 ATOM 40 CA ILE 4 41 -137.247 150.577 117.805 1.00200.33 ATOM 41 C ILE 4 41 -136.759 149.236 117.273 1.00200.33 ATOM 42 O ILE 4 41 -136.202 149.157 116.179 1.00200.33 ATOM 43 CB ILE 4 41 -137.365 151.559 116.623 1.00182.85 ATOM 44 CG1 ILE 4 41 -137.624 152.979 117.141 1.00182.85 ATOM 45 CG2 ILE 4 41 -138.478 151.114 115.692 1.00182.85 ATOM 46 CD1 ILE 4 41 -138.887 153.125 117.963 1.00182.85 ATOM 47 N CYS 4 42 -136.968 148.183 118.054 1.00196.34 ATOM 48 CA CYS 4 42 -136.541 146.850 117.652 1.00196.34 ATOM 49 C CYS 4 42 -137.305 146.383 116.418 1.00196.34 ATOM 50 O CYS 4 42 -138.450 146.774 116.199 1.00196.34 ATOM 51 CB CYS 4 42 -136.761 145.859 118.794 1.00200.24 ATOM 52 SG CYS 4 42 -138.494 145.572 119.191 1.00200.24 ATOM 53 N GLY 4 43 -136.662 145.540 115.617 1.00154.14 ATOM 54 CA GLY 4 43 -137.288 145.034 114.412 1.00156.16 ATOM 55 C GLY 4 43 -138.086 143.760 114.614 1.00157.17 ATOM 56 O GLY 4 43 -137.766 142.724 114.035 1.00156.81 ATOM 57 N CYS 4 44 -139.121 143.828 115.445 1.00200.79 ATOM 58 CA CYS 4 44 -139.978 142.674 115.691 1.00200.79 ATOM 59 C CYS 4 44 -141.311 143.133 116.270 1.00200.79 ATOM 60 O CYS 4 44 -142.077 142.332 116.804 1.00200.79 ATOM 61 CB CYS 4 44 -139.303 141.678 116.642 1.00155.79 ATOM 62 SG CYS 4 44 -139.399 142.096 118.389 1.00153.59 ATOM 63 N GLY 4 45 -141.575 144.432 116.162 1.00184.16 ATOM 64 CA GLY 4 45 -142.825 144.987 116.652 1.00184.16 ATOM 65 C GLY 4 45 -142.843 145.413 118.106 1.00184.16 ATOM 66 O GLY 4 45 -143.620 144.885 118.902 1.00184.16 ATOM 67 N ASN 4 46 -141.996 146.373 118.460 1.00192.44 ATOM 68 CA ASN 4 46 -141.940 146.865 119.830 1.00192.44 ATOM 69 C ASN 4 46 -141.146 148.165 119.902 1.00192.44 ATOM 70 O ASN 4 46 -140.303 148.443 119.050 1.00192.44 ATOM 71 CB ASN 4 46 -141.299 145.818 120.747 1.00189.47 ATOM 72 CG ASN 4 46 -141.407 146.180 122.220 1.00189.47 ATOM 73 OD1 ASN 4 46 -140.748 145.578 123.068 1.00189.47 ATOM 74 ND2 ASN 4 46 -142.249 147.157 122.532 1.00189.47 ATOM 75 N VAL 4 47 -141.430 148.957 120.928 1.00200.79 ATOM 76 CA VAL 4 47 -140.761 150.232 121.142 1.00200.79 ATOM 77 C VAL 4 47 -140.750 150.513 122.638 1.00200.79 ATOM 78 O VAL 4 47 -141.724 151.039 123.177 1.00200.79 ATOM 79 CB VAL 4 47 -141.511 151.379 120.430 1.00200.79 ATOM 80 CG1 VAL 4 47 -140.845 152.707 120.737 1.00200.79 ATOM 81 CG2 VAL 4 47 -141.537 151.134 118.933 1.00200.79 ATOM 82 N ILE 4 48 -139.659 150.163 123.314 1.00190.99 ATOM 83 CA ILE 4 48 -139.585 150.395 124.751 1.00190.99 ATOM 84 C ILE 4 48 -139.227 151.851 125.055 1.00190.99 ATOM 85 O ILE 4 48 -138.501 152.500 124.297 1.00190.99 ATOM 86 CB ILE 4 48 -138.567 149.453 125.441 1.00102.42 ATOM 87 CG1 ILE 4 48 -138.816 147.997 125.031 1.00102.82 ATOM 88 CG2 ILE 4 48 -138.719 149.557 126.956 1.00102.31 ATOM 89 CD1 ILE 4 48 -138.349 147.658 123.638 1.00101.73 ATOM 90 N GLU 4 49 -139.749 152.350 126.172 1.00200.79 ATOM 91 CA GLU 4 49 -139.542 153.732 126.593 1.00200.79 ATOM 92 C GLU 4 49 -138.526 153.846 127.728 1.00200.79 ATOM 93 O GLU 4 49 -138.775 154.530 128.720 1.00200.79 ATOM 94 CB GLU 4 49 -140.879 154.322 127.054 1.00200.37 ATOM 95 CG GLU 4 49 -140.942 155.840 127.112 1.00200.37 ATOM 96 CD GLU 4 49 -141.218 156.460 125.759 1.00200.37 ATOM 97 OE1 GLU 4 49 -140.347 156.365 124.868 1.00200.37 ATOM 98 OE2 GLU 4 49 -142.313 157.036 125.585 1.00200.37 ATOM 99 N THR 4 50 -137.383 153.183 127.591 1.00200.79 ATOM 100 CA THR 4 50 -136.364 153.241 128.633 1.00200.79 ATOM 101 C THR 4 50 -135.727 154.628 128.663 1.00200.79 ATOM 102 O THR 4 50 -136.409 155.642 128.510 1.00200.79 ATOM 103 CB THR 4 50 -135.253 152.194 128.402 1.00147.79 ATOM 104 OG1 THR 4 50 -135.842 150.945 128.028 1.00148.97 ATOM 105 CG2 THR 4 50 -134.448 151.982 129.676 1.00145.80 ATOM 106 N TYR 4 51 -134.413 154.657 128.854 1.00200.79 ATOM 107 CA TYR 4 51 -133.650 155.896 128.914 1.00199.77 ATOM 108 C TYR 4 51 -132.203 155.572 128.552 1.00197.47 ATOM 109 O TYR 4 51 -131.655 154.572 129.015 1.00195.73 ATOM 110 CB TYR 4 51 -133.723 156.478 130.326 1.00188.77 ATOM 111 CG TYR 4 51 -134.484 157.781 130.423 1.00191.00 ATOM 112 CD1 TYR 4 51 -133.811 158.992 130.585 1.00191.17 ATOM 113 CD2 TYR 4 51 -135.876 157.807 130.347 1.00192.97 ATOM 114 CE1 TYR 4 51 -134.505 160.195 130.673 1.00193.23 ATOM 115 CE2 TYR 4 51 -136.579 159.006 130.431 1.00193.58 ATOM 116 CZ TYR 4 51 -135.887 160.195 130.595 1.00193.58 ATOM 117 OH TYR 4 51 -136.574 161.382 130.685 1.00193.58 ATOM 118 N SER 4 52 -131.587 156.410 127.725 1.00142.68 ATOM 119 CA SER 4 52 -130.208 156.182 127.311 1.00140.66 ATOM 120 C SER 4 52 -129.593 157.432 126.700 1.00140.86 ATOM 121 O SER 4 52 -129.811 158.546 127.174 1.00142.14 ATOM 122 CB SER 4 52 -130.156 155.048 126.286 1.00133.50 ATOM 123 OG SER 4 52 -130.607 153.831 126.846 1.00131.34 ATOM 124 N THR 4 53 -128.804 157.225 125.652 1.00126.39 ATOM 125 CA THR 4 53 -128.168 158.315 124.930 1.00126.51 ATOM 126 C THR 4 53 -128.630 158.156 123.486 1.00128.28 ATOM 127 O THR 4 53 -128.521 157.074 122.908 1.00128.49 ATOM 128 CB THR 4 53 -126.636 158.225 125.011 1.00144.65 ATOM 129 OG1 THR 4 53 -126.187 157.044 124.339 1.00143.72 ATOM 130 CG2 THR 4 53 -126.191 158.165 126.460 1.00143.04 ATOM 131 N LYS 4 54 -129.156 159.233 122.913 1.00200.79 ATOM 132 CA LYS 4 54 -129.677 159.213 121.549 1.00200.79 ATOM 133 C LYS 4 54 -130.972 158.402 121.563 1.00200.79 ATOM 134 O LYS 4 54 -130.964 157.207 121.274 1.00200.79 ATOM 135 CB LYS 4 54 -128.684 158.563 120.579 1.00200.36 ATOM 136 CG LYS 4 54 -127.307 159.209 120.524 1.00200.36 ATOM 137 CD LYS 4 54 -126.341 158.563 121.504 1.00199.63 ATOM 138 CE LYS 4 54 -124.933 159.099 121.324 1.00197.59 ATOM 139 NZ LYS 4 54 -123.970 158.391 122.205 1.00195.47 ATOM 140 N PRO 4 55 -132.101 159.047 121.903 1.00197.50 ATOM 141 CA PRO 4 55 -133.423 158.411 121.968 1.00197.50 ATOM 142 C PRO 4 55 -133.784 157.532 120.768 1.00197.50 ATOM 143 O PRO 4 55 -134.714 156.726 120.839 1.00197.50 ATOM 144 CB PRO 4 55 -134.364 159.603 122.114 1.00200.79 ATOM 145 CG PRO 4 55 -133.548 160.556 122.924 1.00200.79 ATOM 146 CD PRO 4 55 -132.198 160.478 122.243 1.00200.79 ATOM 147 N GLU 4 56 -133.049 157.689 119.671 1.00190.38 ATOM 148 CA GLU 4 56 -133.297 156.907 118.465 1.00190.38 ATOM 149 C GLU 4 56 -132.300 155.759 118.347 1.00190.38 ATOM 150 O GLU 4 56 -131.202 155.928 117.820 1.00190.38 ATOM 151 CB GLU 4 56 -133.205 157.804 117.226 1.00197.65 ATOM 152 CG GLU 4 56 -134.217 158.947 117.196 1.00197.65 ATOM 153 CD GLU 4 56 -135.652 158.473 117.035 1.00197.65 ATOM 154 OE1 GLU 4 56 -136.121 157.672 117.871 1.00197.65 ATOM 155 OE2 GLU 4 56 -136.315 158.907 116.069 1.00197.65 ATOM 156 N ILE 4 57 -132.691 154.589 118.839 1.00112.05 ATOM 157 CA ILE 4 57 -131.830 153.417 118.789 1.00110.31 ATOM 158 C ILE 4 57 -132.453 152.322 117.938 1.00111.57 ATOM 159 O ILE 4 57 -133.393 151.658 118.372 1.00112.67 ATOM 160 CB ILE 4 57 -131.588 152.850 120.198 1.00185.75 ATOM 161 CG1 ILE 4 57 -130.986 153.930 121.099 1.00184.46 ATOM 162 CG2 ILE 4 57 -130.662 151.651 120.125 1.00184.05 ATOM 163 CD1 ILE 4 57 -129.651 154.466 120.622 1.00182.46 ATOM 164 N TYR 4 58 -131.932 152.134 116.728 1.00176.10 ATOM 165 CA TYR 4 58 -132.448 151.103 115.833 1.00177.25 ATOM 166 C TYR 4 58 -131.864 149.747 116.188 1.00175.76 ATOM 167 O TYR 4 58 -130.668 149.516 116.026 1.00173.79 ATOM 168 CB TYR 4 58 -132.112 151.418 114.374 1.00182.94 ATOM 169 CG TYR 4 58 -132.762 152.670 113.840 1.00182.94 ATOM 170 CD1 TYR 4 58 -132.264 153.932 114.165 1.00182.94 ATOM 171 CD2 TYR 4 58 -133.880 152.595 113.011 1.00182.94 ATOM 172 CE1 TYR 4 58 -132.865 155.090 113.674 1.00182.94 ATOM 173 CE2 TYR 4 58 -134.489 153.746 112.516 1.00182.94 ATOM 174 CZ TYR 4 58 -133.977 154.989 112.850 1.00182.94 ATOM 175 OH TYR 4 58 -134.574 156.129 112.361 1.00182.94 ATOM 176 N VAL 4 59 -132.719 148.856 116.673 1.00150.19 ATOM 177 CA VAL 4 59 -132.302 147.514 117.052 1.00149.01 ATOM 178 C VAL 4 59 -133.346 146.544 116.520 1.00150.72 ATOM 179 O VAL 4 59 -134.169 146.916 115.684 1.00152.40 ATOM 180 CB VAL 4 59 -132.210 147.368 118.587 1.00184.15 ATOM 181 CG1 VAL 4 59 -131.501 146.071 118.954 1.00182.12 ATOM 182 CG2 VAL 4 59 -131.475 148.557 119.175 1.00183.48 ATOM 183 N GLU 4 60 -133.311 145.304 116.996 1.00182.20 ATOM 184 CA GLU 4 60 -134.272 144.305 116.556 1.00183.71 ATOM 185 C GLU 4 60 -134.350 143.133 117.519 1.00182.87 ATOM 186 O GLU 4 60 -133.909 143.222 118.664 1.00180.93 ATOM 187 CB GLU 4 60 -133.914 143.789 115.157 1.00200.79 ATOM 188 CG GLU 4 60 -132.749 142.809 115.116 1.00200.79 ATOM 189 CD GLU 4 60 -131.462 143.405 115.638 1.00200.79 ATOM 190 OE1 GLU 4 60 -131.025 144.443 115.097 1.00200.79 ATOM 191 OE2 GLU 4 60 -130.886 142.833 116.587 1.00200.79 ATOM 192 N VAL 4 61 -134.925 142.040 117.027 1.00177.23 ATOM 193 CA VAL 4 61 -135.096 140.811 117.787 1.00176.63 ATOM 194 C VAL 4 61 -134.756 140.963 119.266 1.00175.63 ATOM 195 O VAL 4 61 -133.689 140.553 119.714 1.00173.63 ATOM 196 CB VAL 4 61 -134.237 139.680 117.185 1.00194.93 ATOM 197 CG1 VAL 4 61 -134.561 138.359 117.865 1.00194.93 ATOM 198 CG2 VAL 4 61 -134.485 139.586 115.685 1.00194.93 ATOM 199 N CYS 4 62 -135.667 141.572 120.016 1.00101.91 ATOM 200 CA CYS 4 62 -135.474 141.763 121.444 1.00101.17 ATOM 201 C CYS 4 62 -136.109 140.585 122.181 1.00102.14 ATOM 202 O CYS 4 62 -135.983 139.441 121.749 1.00102.17 ATOM 203 CB CYS 4 62 -136.108 143.081 121.890 1.00149.31 ATOM 204 SG CYS 4 62 -137.847 143.253 121.456 1.00152.43 ATOM 205 N SER 4 63 -136.795 140.855 123.286 1.00107.36 ATOM 206 CA SER 4 63 -137.429 139.788 124.049 1.00108.27 ATOM 207 C SER 4 63 -138.906 139.671 123.703 1.00111.06 ATOM 208 O SER 4 63 -139.713 139.243 124.527 1.00112.13 ATOM 209 CB SER 4 63 -137.277 140.046 125.548 1.00200.66 ATOM 210 OG SER 4 63 -137.965 141.222 125.931 1.00200.66 ATOM 211 N LYS 4 64 -139.256 140.052 122.479 1.00175.35 ATOM 212 CA LYS 4 64 -140.641 139.994 122.032 1.00175.35 ATOM 213 C LYS 4 64 -140.845 138.818 121.086 1.00175.35 ATOM 214 O LYS 4 64 -141.754 138.828 120.257 1.00175.35 ATOM 215 CB LYS 4 64 -141.024 141.298 121.322 1.00200.06 ATOM 216 CG LYS 4 64 -142.529 141.523 121.156 1.00200.06 ATOM 217 CD LYS 4 64 -143.150 142.246 122.357 1.00200.06 ATOM 218 CE LYS 4 64 -143.055 141.436 123.645 1.00200.06 ATOM 219 NZ LYS 4 64 -143.613 142.178 124.811 1.00200.06 ATOM 220 N CYS 4 65 -139.988 137.809 121.211 1.00200.79 ATOM 221 CA CYS 4 65 -140.070 136.617 120.374 1.00200.79 ATOM 222 C CYS 4 65 -138.907 135.659 120.620 1.00200.79 ATOM 223 O CYS 4 65 -139.146 134.568 121.184 1.00200.79 ATOM 224 CB CYS 4 65 -140.119 137.014 118.893 1.00144.93 ATOM 225 SG CYS 4 65 -139.040 138.392 118.431 1.00142.78 ATOM 226 N HIS 4 66 -137.769 136.012 120.254 1.00 98.68 TER