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 B 1 317 UNP Q58439 CORA_METJA 1 317 SEQRES 1 B 66 LYS MET ASN GLN ILE MET LYS ILE LEU THR MET VAL THR SEQRES 2 B 66 THR ILE PHE ALA VAL PRO MET TRP ILE THR GLY ILE TYR SEQRES 3 B 66 GLY MET ASN PHE SER TYR LEU PRO LEU ALA ASN ASN PRO SEQRES 4 B 66 GLN GLY PHE TRP LEU VAL MET ALA LEU MET VAL VAL ILE SEQRES 5 B 66 ILE MET ILE PHE VAL TYR ILE PHE ARG ARG SER GLY TRP SEQRES 6 B 66 ILE ATOM 1 CA LYS B 252 -2.294 9.484 -25.761 1.00117.12 ATOM 2 CA MET B 253 -0.447 6.244 -26.491 1.00101.79 ATOM 3 CA ASN B 254 -3.965 4.906 -27.075 1.00 93.86 ATOM 4 CA GLN B 255 -5.519 7.390 -29.483 1.00 86.64 ATOM 5 CA ILE B 256 -2.317 6.977 -31.502 1.00 79.64 ATOM 6 CA MET B 257 -3.118 3.297 -32.083 1.00 76.21 ATOM 7 CA LYS B 258 -6.612 4.478 -32.940 1.00 84.48 ATOM 8 CA ILE B 259 -5.156 6.520 -35.826 1.00 71.07 ATOM 9 CA LEU B 260 -2.799 3.790 -37.017 1.00 62.87 ATOM 10 CA THR B 261 -5.519 1.101 -36.980 1.00 66.86 ATOM 11 CA MET B 262 -7.930 3.425 -38.806 1.00 62.10 ATOM 12 CA VAL B 263 -5.564 4.382 -41.620 1.00 57.02 ATOM 13 CA THR B 264 -4.473 0.790 -42.032 1.00 59.00 ATOM 14 CA THR B 265 -8.023 -0.563 -42.045 1.00 66.62 ATOM 15 CA ILE B 266 -9.534 2.117 -44.255 1.00 88.64 ATOM 16 CA PHE B 267 -7.099 1.476 -47.122 1.00 77.09 ATOM 17 CA ALA B 268 -6.851 -2.257 -46.962 1.00 71.71 ATOM 18 CA VAL B 269 -9.394 -3.384 -49.399 1.00 78.39 ATOM 19 CA PRO B 270 -8.814 -0.491 -51.819 1.00 75.61 ATOM 20 CA MET B 271 -5.163 -1.599 -51.825 1.00 71.56 ATOM 21 CA TRP B 272 -6.073 -5.252 -52.419 1.00 68.51 ATOM 22 CA ILE B 273 -8.446 -4.140 -55.171 1.00 67.09 ATOM 23 CA THR B 274 -5.706 -2.107 -56.810 1.00 71.13 ATOM 24 CA GLY B 275 -3.515 -5.163 -56.371 1.00 76.00 ATOM 25 CA ILE B 276 -5.697 -7.626 -58.169 1.00 73.48 ATOM 26 CA TYR B 277 -6.259 -5.112 -60.984 1.00 70.63 ATOM 27 CA GLY B 278 -2.518 -4.778 -61.323 1.00 76.64 ATOM 28 CA MET B 279 -2.170 -8.489 -62.039 1.00 81.78 ATOM 29 CA ASN B 280 -0.600 -9.709 -65.286 1.00 68.53 ATOM 30 CA PHE B 281 -3.293 -12.048 -66.594 1.00 79.39 ATOM 31 CA SER B 282 -4.323 -11.735 -70.229 1.00 84.66 ATOM 32 CA TYR B 283 -7.869 -11.629 -68.950 1.00 89.55 ATOM 33 CA LEU B 284 -8.778 -9.086 -66.268 1.00 78.27 ATOM 34 CA PRO B 285 -12.539 -8.809 -65.905 1.00 83.92 ATOM 35 CA LEU B 286 -13.598 -5.259 -66.842 1.00 84.22 ATOM 36 CA ALA B 287 -10.025 -4.422 -67.967 1.00 89.48 ATOM 37 CA ASN B 288 -10.953 -3.594 -71.592 1.00 91.17 ATOM 38 CA ASN B 289 -14.288 -2.131 -70.648 1.00 81.72 ATOM 39 CA PRO B 290 -13.755 1.668 -71.111 1.00 89.21 ATOM 40 CA GLN B 291 -15.895 2.332 -68.048 1.00 96.04 ATOM 41 CA GLY B 292 -13.859 -0.130 -66.011 1.00 82.14 ATOM 42 CA PHE B 293 -11.285 2.046 -64.318 1.00 74.43 ATOM 43 CA TRP B 294 -14.152 4.199 -63.044 1.00 80.52 ATOM 44 CA LEU B 295 -16.242 1.217 -62.008 1.00 77.51 ATOM 45 CA VAL B 296 -13.507 -0.144 -59.793 1.00 74.43 ATOM 46 CA MET B 297 -12.536 3.393 -58.864 1.00 71.70 ATOM 47 CA ALA B 298 -16.047 3.669 -57.493 1.00 77.60 ATOM 48 CA LEU B 299 -15.900 0.249 -55.844 1.00 76.99 ATOM 49 CA MET B 300 -12.908 1.465 -53.809 1.00 76.91 ATOM 50 CA VAL B 301 -14.363 4.929 -53.102 1.00 79.52 ATOM 51 CA VAL B 302 -17.514 3.308 -51.660 1.00 76.10 ATOM 52 CA ILE B 303 -15.515 0.729 -49.692 1.00 78.56 ATOM 53 CA ILE B 304 -13.587 3.598 -48.158 1.00 77.34 ATOM 54 CA MET B 305 -16.645 5.733 -47.393 1.00 81.13 ATOM 55 CA ILE B 306 -18.214 2.685 -45.746 1.00 80.58 ATOM 56 CA PHE B 307 -15.216 2.134 -43.492 1.00 92.32 ATOM 57 CA VAL B 308 -14.898 5.806 -42.568 1.00 84.35 ATOM 58 CA TYR B 309 -18.596 5.432 -41.706 1.00 94.46 ATOM 59 CA ILE B 310 -17.978 2.403 -39.537 1.00 92.39 ATOM 60 CA PHE B 311 -15.408 4.460 -37.671 1.00 98.70 ATOM 61 CA ARG B 312 -17.095 7.882 -37.316 1.00119.03 ATOM 62 CA ARG B 313 -19.883 6.209 -35.398 1.00134.74 ATOM 63 CA SER B 314 -18.934 3.601 -32.806 1.00130.14 ATOM 64 CA GLY B 315 -16.934 5.534 -31.911 1.00120.20 ATOM 65 CA TRP B 316 -13.377 6.249 -32.997 1.00105.29 ATOM 66 CA ILE B 317 -13.509 9.601 -34.823 1.00 94.12 TER