HEADER TRANSCRIPTION 31-DEC-69 5OQM TITLE STRUCTURE OF YEAST TRANSCRIPTION PRE-INITIATION COMPLEX WITH TFIIH TITLE 2 AND CORE MEDIATOR COMPND MOL_ID: 22; COMPND 2 MOLECULE: Transcription initiation factor IIE subunit beta; COMPND 3 CHAIN: X; COMPND 4 ENGINEERED: YES; EXPDTA ELECTRON MICROSCOPY DBREF 5OQM X 1 328 UNP P36145 T2EB_YEAST 1 328 SEQRES 1 X 34 GLY ASN LEU LYS CYS ILE ASP GLU GLU PHE VAL LYS MET SEQRES 2 X 34 TRP GLU ASN VAL GLN LEU PRO GLN PHE ALA GLU LEU PRO SEQRES 3 X 34 ARG LYS LEU GLN ASP LEU GLY LEU ATOM 1 N GLY X 250 200.866 212.461 256.323 1.00 0.00 ATOM 2 CA GLY X 250 200.545 212.636 254.919 1.00 0.00 ATOM 3 C GLY X 250 199.305 213.451 254.620 1.00 0.00 ATOM 4 O GLY X 250 199.189 214.030 253.535 1.00 0.00 ATOM 5 N ASN X 251 198.364 213.498 255.564 1.00 0.00 ATOM 6 CA ASN X 251 197.145 214.275 255.383 1.00 0.00 ATOM 7 C ASN X 251 197.472 215.762 255.344 1.00 0.00 ATOM 8 O ASN X 251 197.715 216.322 254.270 1.00 0.00 ATOM 9 CB ASN X 251 196.143 213.967 256.497 1.00 0.00 ATOM 10 CG ASN X 251 194.875 214.792 256.390 1.00 0.00 ATOM 11 OD1 ASN X 251 194.168 214.737 255.386 1.00 0.00 ATOM 12 ND2 ASN X 251 194.582 215.560 257.434 1.00 0.00 ATOM 13 N LEU X 252 197.474 216.405 256.514 1.00 0.00 ATOM 14 CA LEU X 252 197.863 217.810 256.651 1.00 0.00 ATOM 15 C LEU X 252 197.047 218.721 255.738 1.00 0.00 ATOM 16 O LEU X 252 197.502 219.797 255.340 1.00 0.00 ATOM 17 CB LEU X 252 199.361 217.992 256.396 1.00 0.00 ATOM 18 CG LEU X 252 200.291 217.300 257.394 1.00 0.00 ATOM 19 CD1 LEU X 252 201.748 217.575 257.054 1.00 0.00 ATOM 20 CD2 LEU X 252 199.978 217.746 258.814 1.00 0.00 ATOM 21 N LYS X 253 195.830 218.299 255.392 1.00 0.00 ATOM 22 CA LYS X 253 194.947 219.149 254.607 1.00 0.00 ATOM 23 C LYS X 253 194.332 220.266 255.435 1.00 0.00 ATOM 24 O LYS X 253 193.661 221.137 254.870 1.00 0.00 ATOM 25 CB LYS X 253 193.842 218.314 253.953 1.00 0.00 ATOM 26 CG LYS X 253 192.832 217.727 254.923 1.00 0.00 ATOM 27 CD LYS X 253 191.732 216.986 254.176 1.00 0.00 ATOM 28 CE LYS X 253 190.658 216.479 255.122 1.00 0.00 ATOM 29 NZ LYS X 253 191.200 215.513 256.116 1.00 0.00 ATOM 30 N CYS X 254 194.542 220.258 256.754 1.00 0.00 ATOM 31 CA CYS X 254 194.113 221.371 257.589 1.00 0.00 ATOM 32 C CYS X 254 194.876 222.648 257.266 1.00 0.00 ATOM 33 O CYS X 254 194.401 223.741 257.594 1.00 0.00 ATOM 34 CB CYS X 254 194.285 221.011 259.067 1.00 0.00 ATOM 35 SG CYS X 254 193.573 222.196 260.230 1.00 0.00 ATOM 36 N ILE X 255 196.049 222.532 256.640 1.00 0.00 ATOM 37 CA ILE X 255 196.774 223.708 256.178 1.00 0.00 ATOM 38 C ILE X 255 195.908 224.443 255.167 1.00 0.00 ATOM 39 O ILE X 255 195.588 223.908 254.098 1.00 0.00 ATOM 40 CB ILE X 255 198.126 223.312 255.574 1.00 0.00 ATOM 41 CG1 ILE X 255 198.940 222.483 256.572 1.00 0.00 ATOM 42 CG2 ILE X 255 198.899 224.551 255.148 1.00 0.00 ATOM 43 CD1 ILE X 255 199.310 223.231 257.828 1.00 0.00 ATOM 44 N ASP X 256 195.516 225.670 255.504 1.00 0.00 ATOM 45 CA ASP X 256 194.628 226.434 254.641 1.00 0.00 ATOM 46 C ASP X 256 195.289 226.710 253.296 1.00 0.00 ATOM 47 O ASP X 256 196.507 226.883 253.198 1.00 0.00 ATOM 48 CB ASP X 256 194.236 227.750 255.310 1.00 0.00 ATOM 49 CG ASP X 256 193.522 227.543 256.631 1.00 0.00 ATOM 50 OD1 ASP X 256 193.808 226.536 257.311 1.00 0.00 ATOM 51 OD2 ASP X 256 192.676 228.388 256.989 1.00 0.00 ATOM 52 N GLU X 257 194.462 226.745 252.246 1.00 0.00 ATOM 53 CA GLU X 257 194.969 227.047 250.912 1.00 0.00 ATOM 54 C GLU X 257 195.625 228.418 250.861 1.00 0.00 ATOM 55 O GLU X 257 196.573 228.625 250.092 1.00 0.00 ATOM 56 CB GLU X 257 193.835 226.964 249.889 1.00 0.00 ATOM 57 CG GLU X 257 193.142 225.610 249.810 1.00 0.00 ATOM 58 CD GLU X 257 193.982 224.551 249.118 1.00 0.00 ATOM 59 OE1 GLU X 257 195.030 224.155 249.670 1.00 0.00 ATOM 60 OE2 GLU X 257 193.593 224.117 248.013 1.00 0.00 ATOM 61 N GLU X 258 195.139 229.366 251.666 1.00 0.00 ATOM 62 CA GLU X 258 195.754 230.688 251.710 1.00 0.00 ATOM 63 C GLU X 258 197.179 230.613 252.245 1.00 0.00 ATOM 64 O GLU X 258 198.069 231.320 251.761 1.00 0.00 ATOM 65 CB GLU X 258 194.907 231.631 252.566 1.00 0.00 ATOM 66 CG GLU X 258 193.481 231.810 252.069 1.00 0.00 ATOM 67 CD GLU X 258 193.410 232.531 250.737 1.00 0.00 ATOM 68 OE1 GLU X 258 194.347 233.296 250.420 1.00 0.00 ATOM 69 OE2 GLU X 258 192.417 232.333 250.006 1.00 0.00 ATOM 70 N PHE X 259 197.414 229.757 253.244 1.00 0.00 ATOM 71 CA PHE X 259 198.764 229.593 253.771 1.00 0.00 ATOM 72 C PHE X 259 199.684 228.931 252.753 1.00 0.00 ATOM 73 O PHE X 259 200.890 229.204 252.738 1.00 0.00 ATOM 74 CB PHE X 259 198.730 228.781 255.066 1.00 0.00 ATOM 75 CG PHE X 259 197.860 229.378 256.135 1.00 0.00 ATOM 76 CD1 PHE X 259 197.680 230.751 256.219 1.00 0.00 ATOM 77 CD2 PHE X 259 197.219 228.568 257.058 1.00 0.00 ATOM 78 CE1 PHE X 259 196.878 231.300 257.201 1.00 0.00 ATOM 79 CE2 PHE X 259 196.417 229.111 258.042 1.00 0.00 ATOM 80 CZ PHE X 259 196.245 230.479 258.113 1.00 0.00 ATOM 81 N VAL X 260 199.137 228.062 251.900 1.00 0.00 ATOM 82 CA VAL X 260 199.942 227.452 250.847 1.00 0.00 ATOM 83 C VAL X 260 200.272 228.475 249.769 1.00 0.00 ATOM 84 O VAL X 260 201.389 228.502 249.238 1.00 0.00 ATOM 85 CB VAL X 260 199.216 226.224 250.265 1.00 0.00 ATOM 86 CG1 VAL X 260 200.049 225.582 249.166 1.00 0.00 ATOM 87 CG2 VAL X 260 198.908 225.221 251.365 1.00 0.00 ATOM 88 N LYS X 261 199.310 229.337 249.430 1.00 0.00 ATOM 89 CA LYS X 261 199.573 230.389 248.452 1.00 0.00 ATOM 90 C LYS X 261 200.593 231.389 248.981 1.00 0.00 ATOM 91 O LYS X 261 201.435 231.885 248.224 1.00 0.00 ATOM 92 CB LYS X 261 198.272 231.096 248.074 1.00 0.00 ATOM 93 CG LYS X 261 197.272 230.208 247.350 1.00 0.00 ATOM 94 CD LYS X 261 197.857 229.654 246.061 1.00 0.00 ATOM 95 CE LYS X 261 196.860 228.758 245.341 1.00 0.00 ATOM 96 NZ LYS X 261 196.459 227.592 246.175 1.00 0.00 ATOM 97 N MET X 262 200.537 231.697 250.279 1.00 0.00 ATOM 98 CA MET X 262 201.545 232.561 250.880 1.00 0.00 ATOM 99 C MET X 262 202.884 231.855 251.044 1.00 0.00 ATOM 100 O MET X 262 203.905 232.523 251.238 1.00 0.00 ATOM 101 CB MET X 262 201.061 233.078 252.236 1.00 0.00 ATOM 102 CG MET X 262 199.846 233.987 252.157 1.00 0.00 ATOM 103 SD MET X 262 200.145 235.465 251.168 1.00 0.00 ATOM 104 CE MET X 262 198.555 236.282 251.289 1.00 0.00 ATOM 105 N TRP X 263 202.901 230.522 250.971 1.00 0.00 ATOM 106 CA TRP X 263 204.151 229.780 251.077 1.00 0.00 ATOM 107 C TRP X 263 204.882 229.701 249.744 1.00 0.00 ATOM 108 O TRP X 263 206.116 229.630 249.720 1.00 0.00 ATOM 109 CB TRP X 263 203.879 228.373 251.612 1.00 0.00 ATOM 110 CG TRP X 263 205.117 227.576 251.897 1.00 0.00 ATOM 111 CD1 TRP X 263 205.787 226.763 251.030 1.00 0.00 ATOM 112 CD2 TRP X 263 205.828 227.510 253.139 1.00 0.00 ATOM 113 NE1 TRP X 263 206.873 226.199 251.653 1.00 0.00 ATOM 114 CE2 TRP X 263 206.921 226.641 252.949 1.00 0.00 ATOM 115 CE3 TRP X 263 205.647 228.103 254.393 1.00 0.00 ATOM 116 CZ2 TRP X 263 207.828 226.351 253.965 1.00 0.00 ATOM 117 CZ3 TRP X 263 206.550 227.813 255.400 1.00 0.00 ATOM 118 CH2 TRP X 263 207.626 226.944 255.180 1.00 0.00 ATOM 119 N GLU X 264 204.146 229.716 248.630 1.00 0.00 ATOM 120 CA GLU X 264 204.763 229.653 247.313 1.00 0.00 ATOM 121 C GLU X 264 205.216 231.017 246.807 1.00 0.00 ATOM 122 O GLU X 264 206.075 231.079 245.921 1.00 0.00 ATOM 123 CB GLU X 264 203.793 229.031 246.307 1.00 0.00 ATOM 124 CG GLU X 264 203.375 227.607 246.641 1.00 0.00 ATOM 125 CD GLU X 264 202.402 227.034 245.630 1.00 0.00 ATOM 126 OE1 GLU X 264 201.884 227.806 244.796 1.00 0.00 ATOM 127 OE2 GLU X 264 202.154 225.811 245.669 1.00 0.00 ATOM 128 N ASN X 265 204.660 232.103 247.345 1.00 0.00 ATOM 129 CA ASN X 265 205.042 233.444 246.919 1.00 0.00 ATOM 130 C ASN X 265 206.354 233.913 247.532 1.00 0.00 ATOM 131 O ASN X 265 206.855 234.973 247.142 1.00 0.00 ATOM 132 CB ASN X 265 203.932 234.442 247.263 1.00 0.00 ATOM 133 CG ASN X 265 202.644 234.163 246.514 1.00 0.00 ATOM 134 OD1 ASN X 265 202.661 233.639 245.399 1.00 0.00 ATOM 135 ND2 ASN X 265 201.518 234.512 247.123 1.00 0.00 ATOM 136 N VAL X 266 206.918 233.161 248.471 1.00 0.00 ATOM 137 CA VAL X 266 208.169 233.546 249.116 1.00 0.00 ATOM 138 C VAL X 266 209.328 233.169 248.202 1.00 0.00 ATOM 139 O VAL X 266 209.501 231.997 247.851 1.00 0.00 ATOM 140 CB VAL X 266 208.310 232.880 250.492 1.00 0.00 ATOM 141 CG1 VAL X 266 209.624 233.280 251.141 1.00 0.00 ATOM 142 CG2 VAL X 266 207.135 233.251 251.382 1.00 0.00 ATOM 143 N GLN X 267 210.123 234.162 247.814 1.00 0.00 ATOM 144 CA GLN X 267 211.290 233.955 246.968 1.00 0.00 ATOM 145 C GLN X 267 212.534 233.905 247.847 1.00 0.00 ATOM 146 O GLN X 267 212.881 234.898 248.495 1.00 0.00 ATOM 147 CB GLN X 267 211.411 235.062 245.921 1.00 0.00 ATOM 148 CG GLN X 267 210.210 235.175 244.993 1.00 0.00 ATOM 149 CD GLN X 267 210.043 233.959 244.100 1.00 0.00 ATOM 150 OE1 GLN X 267 208.923 233.574 243.760 1.00 0.00 ATOM 151 NE2 GLN X 267 211.158 233.353 243.708 1.00 0.00 ATOM 152 N LEU X 268 213.199 232.754 247.864 1.00 0.00 ATOM 153 CA LEU X 268 214.347 232.557 248.737 1.00 0.00 ATOM 154 C LEU X 268 215.570 233.289 248.187 1.00 0.00 ATOM 155 O LEU X 268 215.845 233.223 246.986 1.00 0.00 ATOM 156 CB LEU X 268 214.660 231.071 248.882 1.00 0.00 ATOM 157 CG LEU X 268 213.538 230.190 249.428 1.00 0.00 ATOM 158 CD1 LEU X 268 213.912 228.722 249.314 1.00 0.00 ATOM 159 CD2 LEU X 268 213.224 230.556 250.870 1.00 0.00 ATOM 160 N PRO X 269 216.316 233.995 249.039 1.00 0.00 ATOM 161 CA PRO X 269 217.579 234.605 248.594 1.00 0.00 ATOM 162 C PRO X 269 218.638 233.532 248.384 1.00 0.00 ATOM 163 O PRO X 269 219.045 232.851 249.328 1.00 0.00 ATOM 164 CB PRO X 269 217.943 235.551 249.743 1.00 0.00 ATOM 165 CG PRO X 269 217.269 234.961 250.938 1.00 0.00 ATOM 166 CD PRO X 269 215.999 234.328 250.439 1.00 0.00 ATOM 167 N GLN X 270 219.077 233.382 247.138 1.00 0.00 ATOM 168 CA GLN X 270 219.999 232.315 246.785 1.00 0.00 ATOM 169 C GLN X 270 221.394 232.596 247.343 1.00 0.00 ATOM 170 O GLN X 270 221.675 233.659 247.903 1.00 0.00 ATOM 171 CB GLN X 270 220.062 232.145 245.267 1.00 0.00 ATOM 172 CG GLN X 270 218.724 231.820 244.620 1.00 0.00 ATOM 173 CD GLN X 270 218.190 230.460 245.030 1.00 0.00 ATOM 174 OE1 GLN X 270 218.950 229.562 245.386 1.00 0.00 ATOM 175 NE2 GLN X 270 216.872 230.306 244.980 1.00 0.00 ATOM 176 N PHE X 271 222.270 231.609 247.181 1.00 0.00 ATOM 177 CA PHE X 271 223.680 231.679 247.590 1.00 0.00 ATOM 178 C PHE X 271 223.741 231.900 249.105 1.00 0.00 ATOM 179 O PHE X 271 222.876 231.421 249.850 1.00 0.00 ATOM 180 CB PHE X 271 224.403 232.725 246.760 1.00 0.00 ATOM 181 CG PHE X 271 224.435 232.414 245.291 1.00 0.00 ATOM 182 CD1 PHE X 271 225.401 231.570 244.770 1.00 0.00 ATOM 183 CD2 PHE X 271 223.499 232.963 244.431 1.00 0.00 ATOM 184 CE1 PHE X 271 225.435 231.278 243.419 1.00 0.00 ATOM 185 CE2 PHE X 271 223.526 232.675 243.079 1.00 0.00 ATOM 186 CZ PHE X 271 224.495 231.832 242.573 1.00 0.00 ATOM 187 N ALA X 272 224.759 232.619 249.574 1.00 0.00 ATOM 188 CA ALA X 272 224.978 232.832 250.998 1.00 0.00 ATOM 189 C ALA X 272 224.182 234.007 251.554 1.00 0.00 ATOM 190 O ALA X 272 224.409 234.401 252.702 1.00 0.00 ATOM 191 CB ALA X 272 226.468 233.038 251.276 1.00 0.00 ATOM 192 N GLU X 273 223.262 234.575 250.772 1.00 0.00 ATOM 193 CA GLU X 273 222.442 235.668 251.280 1.00 0.00 ATOM 194 C GLU X 273 221.442 235.182 252.322 1.00 0.00 ATOM 195 O GLU X 273 221.104 235.926 253.250 1.00 0.00 ATOM 196 CB GLU X 273 221.713 236.358 250.128 1.00 0.00 ATOM 197 CG GLU X 273 222.634 236.944 249.069 1.00 0.00 ATOM 198 CD GLU X 273 221.875 237.588 247.927 1.00 0.00 ATOM 199 OE1 GLU X 273 220.645 237.394 247.843 1.00 0.00 ATOM 200 OE2 GLU X 273 222.509 238.290 247.111 1.00 0.00 ATOM 201 N LEU X 274 220.967 233.940 252.190 1.00 0.00 ATOM 202 CA LEU X 274 219.976 233.429 253.136 1.00 0.00 ATOM 203 C LEU X 274 220.553 233.232 254.535 1.00 0.00 ATOM 204 O LEU X 274 219.923 233.690 255.506 1.00 0.00 ATOM 205 CB LEU X 274 219.349 232.143 252.588 1.00 0.00 ATOM 206 CG LEU X 274 218.298 231.479 253.475 1.00 0.00 ATOM 207 CD1 LEU X 274 217.187 232.463 253.783 1.00 0.00 ATOM 208 CD2 LEU X 274 217.744 230.230 252.808 1.00 0.00 ATOM 209 N PRO X 275 221.704 232.573 254.726 1.00 0.00 ATOM 210 CA PRO X 275 222.245 232.464 256.091 1.00 0.00 ATOM 211 C PRO X 275 222.548 233.809 256.724 1.00 0.00 ATOM 212 O PRO X 275 222.381 233.961 257.942 1.00 0.00 ATOM 213 CB PRO X 275 223.518 231.629 255.901 1.00 0.00 ATOM 214 CG PRO X 275 223.292 230.875 254.643 1.00 0.00 ATOM 215 CD PRO X 275 222.525 231.812 253.765 1.00 0.00 ATOM 216 N ARG X 276 222.983 234.794 255.936 1.00 0.00 ATOM 217 CA ARG X 276 223.219 236.124 256.487 1.00 0.00 ATOM 218 C ARG X 276 221.910 236.800 256.873 1.00 0.00 ATOM 219 O ARG X 276 221.839 237.483 257.902 1.00 0.00 ATOM 220 CB ARG X 276 223.994 236.978 255.483 1.00 0.00 ATOM 221 CG ARG X 276 225.372 236.437 255.139 1.00 0.00 ATOM 222 CD ARG X 276 226.110 237.369 254.194 1.00 0.00 ATOM 223 NE ARG X 276 225.387 237.563 252.940 1.00 0.00 ATOM 224 CZ ARG X 276 225.811 238.336 251.946 1.00 0.00 ATOM 225 NH1 ARG X 276 225.088 238.456 250.842 1.00 0.00 ATOM 226 NH2 ARG X 276 226.959 238.989 252.057 1.00 0.00 ATOM 227 N LYS X 277 220.863 236.620 256.063 1.00 0.00 ATOM 228 CA LYS X 277 219.569 237.207 256.396 1.00 0.00 ATOM 229 C LYS X 277 218.939 236.536 257.609 1.00 0.00 ATOM 230 O LYS X 277 218.136 237.160 258.311 1.00 0.00 ATOM 231 CB LYS X 277 218.626 237.128 255.197 1.00 0.00 ATOM 232 CG LYS X 277 218.949 238.116 254.087 1.00 0.00 ATOM 233 CD LYS X 277 218.890 239.549 254.591 1.00 0.00 ATOM 234 CE LYS X 277 219.223 240.536 253.484 1.00 0.00 ATOM 235 NZ LYS X 277 220.590 240.313 252.934 1.00 0.00 ATOM 236 N LEU X 278 219.280 235.274 257.870 1.00 0.00 ATOM 237 CA LEU X 278 218.775 234.599 259.059 1.00 0.00 ATOM 238 C LEU X 278 219.610 234.890 260.299 1.00 0.00 ATOM 239 O LEU X 278 219.074 234.873 261.412 1.00 0.00 ATOM 240 CB LEU X 278 218.707 233.087 258.826 1.00 0.00 ATOM 241 CG LEU X 278 217.572 232.624 257.911 1.00 0.00 ATOM 242 CD1 LEU X 278 217.555 231.112 257.811 1.00 0.00 ATOM 243 CD2 LEU X 278 216.234 233.144 258.412 1.00 0.00 ATOM 244 N GLN X 279 220.908 235.157 260.134 1.00 0.00 ATOM 245 CA GLN X 279 221.734 235.538 261.273 1.00 0.00 ATOM 246 C GLN X 279 221.477 236.971 261.718 1.00 0.00 ATOM 247 O GLN X 279 221.793 237.318 262.860 1.00 0.00 ATOM 248 CB GLN X 279 223.217 235.356 260.942 1.00 0.00 ATOM 249 CG GLN X 279 223.664 233.903 260.866 1.00 0.00 ATOM 250 CD GLN X 279 223.549 233.185 262.197 1.00 0.00 ATOM 251 OE1 GLN X 279 223.229 231.997 262.248 1.00 0.00 ATOM 252 NE2 GLN X 279 223.817 233.901 263.283 1.00 0.00 ATOM 253 N ASP X 280 220.918 237.810 260.842 1.00 0.00 ATOM 254 CA ASP X 280 220.545 239.161 261.246 1.00 0.00 ATOM 255 C ASP X 280 219.261 239.174 262.063 1.00 0.00 ATOM 256 O ASP X 280 219.088 240.040 262.927 1.00 0.00 ATOM 257 CB ASP X 280 220.394 240.059 260.017 1.00 0.00 ATOM 258 CG ASP X 280 221.703 240.265 259.281 1.00 0.00 ATOM 259 OD1 ASP X 280 222.760 240.308 259.946 1.00 0.00 ATOM 260 OD2 ASP X 280 221.676 240.385 258.038 1.00 0.00 ATOM 261 N LEU X 281 218.355 238.228 261.806 1.00 0.00 ATOM 262 CA LEU X 281 217.123 238.132 262.579 1.00 0.00 ATOM 263 C LEU X 281 217.321 237.415 263.908 1.00 0.00 ATOM 264 O LEU X 281 216.496 237.576 264.813 1.00 0.00 ATOM 265 CB LEU X 281 216.044 237.416 261.764 1.00 0.00 ATOM 266 N GLY X 282 218.388 236.632 264.045 1.00 0.00 ATOM 267 CA GLY X 282 218.683 235.942 265.281 1.00 0.00 ATOM 268 C GLY X 282 218.365 234.464 265.302 1.00 0.00 ATOM 269 O GLY X 282 218.395 233.861 266.381 1.00 0.00 ATOM 270 N LEU X 283 218.066 233.862 264.155 1.00 0.00 ATOM 271 CA LEU X 283 217.740 232.441 264.103 1.00 0.00 ATOM 272 C LEU X 283 218.977 231.601 263.804 1.00 0.00 ATOM 273 O LEU X 283 219.970 232.099 263.276 1.00 0.00 ATOM 274 CB LEU X 283 216.660 232.178 263.052 1.00 0.00 TER