HEADER MEMBRANE PROTEIN 10-APR-14 4CY4 TITLE The Cryo-Electron Microscopy Structure of the CorA channel from TITLE 2 Methanocaldococcus jannaschii at 21.6 Angstrom in low magnesium. COMPND MOL_ID: 1; COMPND 2 MOLECULE: MAGNESIUM TRANSPORT PROTEIN CORA; COMPND 3 CHAIN: A, B, C, D, E; COMPND 4 ENGINEERED: YES; COMPND 5 RECOMBINANTLY OVER-EXPRESSED PROTEIN, SOLUBILIZED FROM MEMBRANE COMPND 6 OTHER_DETAILS: FRACTION. PURIFIED BY AFFINITY (HIS-TAG), SIZE EXCLUSION COMPND 7 CHROMATOGRAPHY. PROTEOLYTIC TAG CLEAVEAGE.; EXPDTA ELECTRON MICROSCOPY DBREF 4CY4 A 1 317 UNP Q58439 CORA_METJA 1 317 SEQRES 1 A 66 LYS MET ASN GLN ILE MET LYS ILE LEU THR MET VAL THR SEQRES 2 A 66 THR ILE PHE ALA VAL PRO MET TRP ILE THR GLY ILE TYR SEQRES 3 A 66 GLY MET ASN PHE SER TYR LEU PRO LEU ALA ASN ASN PRO SEQRES 4 A 66 GLN GLY PHE TRP LEU VAL MET ALA LEU MET VAL VAL ILE SEQRES 5 A 66 ILE MET ILE PHE VAL TYR ILE PHE ARG ARG SER GLY TRP SEQRES 6 A 66 ILE ATOM 1 CA LYS A 252 -8.695 -1.046 -25.232 1.00 91.45 ATOM 2 CA MET A 253 -5.025 -0.491 -26.019 1.00 87.49 ATOM 3 CA ASN A 254 -5.344 -4.256 -26.489 1.00 84.48 ATOM 4 CA GLN A 255 -8.507 -4.921 -28.444 1.00 88.14 ATOM 5 CA ILE A 256 -7.411 -2.217 -30.841 1.00 79.79 ATOM 6 CA MET A 257 -4.050 -3.775 -31.749 1.00 72.63 ATOM 7 CA LYS A 258 -6.043 -6.991 -32.074 1.00 78.93 ATOM 8 CA ILE A 259 -7.931 -5.351 -34.958 1.00 74.41 ATOM 9 CA LEU A 260 -4.804 -3.820 -36.515 1.00 79.14 ATOM 10 CA THR A 261 -2.997 -7.143 -36.380 1.00 79.43 ATOM 11 CA MET A 262 -6.062 -8.870 -37.764 1.00 79.64 ATOM 12 CA VAL A 263 -6.240 -6.656 -40.855 1.00 66.55 ATOM 13 CA THR A 264 -2.449 -6.684 -41.332 1.00 69.23 ATOM 14 CA THR A 265 -2.336 -10.446 -40.847 1.00 72.24 ATOM 15 CA ILE A 266 -5.397 -11.284 -42.949 1.00 74.92 ATOM 16 CA PHE A 267 -4.197 -9.410 -46.040 1.00 79.48 ATOM 17 CA ALA A 268 -0.542 -10.339 -46.145 1.00 73.61 ATOM 18 CA VAL A 269 -0.376 -13.551 -48.038 1.00 71.39 ATOM 19 CA PRO A 270 -3.033 -12.192 -50.460 1.00 67.63 ATOM 20 CA MET A 271 -1.012 -8.969 -51.121 1.00 68.17 ATOM 21 CA TRP A 272 2.048 -11.146 -51.633 1.00 64.93 ATOM 22 CA ILE A 273 -0.002 -12.971 -54.230 1.00 70.34 ATOM 23 CA THR A 274 -1.041 -9.823 -56.064 1.00 70.50 ATOM 24 CA GLY A 275 2.567 -8.677 -55.752 1.00 63.87 ATOM 25 CA ILE A 276 3.918 -11.738 -57.575 1.00 66.00 ATOM 26 CA TYR A 277 1.160 -11.707 -60.156 1.00 77.71 ATOM 27 CA GLY A 278 2.068 -8.128 -60.981 1.00 84.90 ATOM 28 CA MET A 279 5.649 -9.104 -61.772 1.00 95.43 ATOM 29 CA ASN A 280 7.002 -8.306 -65.232 1.00 82.35 ATOM 30 CA PHE A 281 8.227 -11.806 -65.912 1.00 88.58 ATOM 31 CA SER A 282 7.437 -13.613 -69.139 1.00100.80 ATOM 32 CA TYR A 283 6.153 -16.975 -67.949 1.00109.61 ATOM 33 CA LEU A 284 3.947 -16.053 -64.993 1.00 78.59 ATOM 34 CA PRO A 285 2.541 -19.461 -64.614 1.00 90.68 ATOM 35 CA LEU A 286 -1.182 -19.319 -65.569 1.00100.27 ATOM 36 CA ALA A 287 -1.065 -15.749 -66.926 1.00 99.70 ATOM 37 CA ASN A 288 -2.003 -16.997 -70.371 1.00108.74 ATOM 38 CA ASN A 289 -4.188 -19.503 -68.643 1.00 92.77 ATOM 39 CA PRO A 290 -7.763 -18.337 -69.281 1.00101.17 ATOM 40 CA GLN A 291 -8.661 -19.574 -65.852 1.00100.47 ATOM 41 CA GLY A 292 -5.748 -17.823 -64.218 1.00 89.55 ATOM 42 CA PHE A 293 -7.293 -14.631 -62.867 1.00 77.05 ATOM 43 CA TRP A 294 -10.218 -16.450 -61.305 1.00 77.27 ATOM 44 CA LEU A 295 -8.032 -19.259 -60.029 1.00 77.64 ATOM 45 CA VAL A 296 -5.832 -16.760 -58.156 1.00 72.15 ATOM 46 CA MET A 297 -8.891 -14.831 -56.933 1.00 65.57 ATOM 47 CA ALA A 298 -10.102 -18.137 -55.511 1.00 69.85 ATOM 48 CA LEU A 299 -6.874 -19.125 -53.753 1.00 79.96 ATOM 49 CA MET A 300 -6.736 -15.669 -52.223 1.00 79.75 ATOM 50 CA VAL A 301 -10.302 -15.709 -50.977 1.00 71.20 ATOM 51 CA VAL A 302 -9.634 -19.175 -49.507 1.00 78.07 ATOM 52 CA ILE A 303 -6.570 -17.850 -47.726 1.00 82.20 ATOM 53 CA ILE A 304 -8.518 -14.945 -46.303 1.00 67.93 ATOM 54 CA MET A 305 -11.289 -17.269 -45.207 1.00 73.46 ATOM 55 CA ILE A 306 -8.742 -19.531 -43.476 1.00 63.04 ATOM 56 CA PHE A 307 -7.141 -16.706 -41.510 1.00 73.92 ATOM 57 CA VAL A 308 -10.576 -15.365 -40.570 1.00 72.59 ATOM 58 CA TYR A 309 -11.319 -18.794 -39.148 1.00 80.44 ATOM 59 CA ILE A 310 -8.026 -19.101 -37.309 1.00 70.63 ATOM 60 CA PHE A 311 -8.776 -15.658 -35.880 1.00 88.40 ATOM 61 CA ARG A 312 -12.354 -16.664 -35.085 1.00108.55 ATOM 62 CA ARG A 313 -10.953 -19.299 -32.756 1.00112.25 ATOM 63 CA SER A 314 -8.640 -18.891 -31.003 1.00110.43 ATOM 64 CA GLY A 315 -11.042 -16.076 -30.149 1.00 88.23 ATOM 65 CA TRP A 316 -10.018 -12.656 -31.419 1.00 91.10 ATOM 66 CA ILE A 317 -12.855 -11.841 -33.799 1.00 93.96 TER