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 C 1 317 UNP Q58439 CORA_METJA 1 317 SEQRES 1 C 66 LYS MET ASN GLN ILE MET LYS ILE LEU THR MET VAL THR SEQRES 2 C 66 THR ILE PHE ALA VAL PRO MET TRP ILE THR GLY ILE TYR SEQRES 3 C 66 GLY MET ASN PHE SER TYR LEU PRO LEU ALA ASN ASN PRO SEQRES 4 C 66 GLN GLY PHE TRP LEU VAL MET ALA LEU MET VAL VAL ILE SEQRES 5 C 66 ILE MET ILE PHE VAL TYR ILE PHE ARG ARG SER GLY TRP SEQRES 6 C 66 ILE ATOM 1 CA LYS C 252 8.556 6.307 -24.921 1.00109.60 ATOM 2 CA MET C 253 6.224 3.855 -26.686 1.00104.53 ATOM 3 CA ASN C 254 4.329 7.036 -27.349 1.00108.32 ATOM 4 CA GLN C 255 7.024 8.709 -29.429 1.00100.79 ATOM 5 CA ILE C 256 7.468 5.301 -31.114 1.00 80.07 ATOM 6 CA MET C 257 3.834 4.743 -32.118 1.00 67.39 ATOM 7 CA LYS C 258 3.928 8.403 -33.120 1.00 74.83 ATOM 8 CA ILE C 259 6.658 7.583 -35.593 1.00 74.56 ATOM 9 CA LEU C 260 5.047 4.412 -36.922 1.00 71.81 ATOM 10 CA THR C 261 1.605 6.016 -37.169 1.00 73.49 ATOM 11 CA MET C 262 3.088 9.125 -38.833 1.00 73.78 ATOM 12 CA VAL C 263 5.035 7.244 -41.474 1.00 55.02 ATOM 13 CA THR C 264 2.131 4.862 -42.172 1.00 67.22 ATOM 14 CA THR C 265 -0.284 7.787 -42.458 1.00 61.83 ATOM 15 CA ILE C 266 2.066 9.913 -44.521 1.00 75.03 ATOM 16 CA PHE C 267 2.366 7.448 -47.333 1.00 88.65 ATOM 17 CA ALA C 268 -1.148 6.149 -47.553 1.00 79.47 ATOM 18 CA VAL C 269 -3.022 8.276 -49.985 1.00 75.98 ATOM 19 CA PRO C 270 0.146 8.280 -52.152 1.00 61.97 ATOM 20 CA MET C 271 0.574 4.516 -52.180 1.00 64.09 ATOM 21 CA TRP C 272 -3.070 4.454 -53.194 1.00 68.20 ATOM 22 CA ILE C 273 -2.406 6.804 -56.057 1.00 64.46 ATOM 23 CA THR C 274 0.494 4.691 -57.324 1.00 61.19 ATOM 24 CA GLY C 275 -1.813 1.736 -56.802 1.00 70.74 ATOM 25 CA ILE C 276 -4.601 3.040 -58.990 1.00 77.44 ATOM 26 CA TYR C 277 -2.127 4.224 -61.627 1.00 69.54 ATOM 27 CA GLY C 278 -0.658 0.748 -61.847 1.00 67.48 ATOM 28 CA MET C 279 -3.942 -0.967 -62.757 1.00 72.10 ATOM 29 CA ASN C 280 -4.333 -2.169 -66.328 1.00 87.88 ATOM 30 CA PHE C 281 -6.954 -1.159 -67.486 1.00 93.69 ATOM 31 CA SER C 282 -6.531 0.237 -70.922 1.00 99.62 ATOM 32 CA TYR C 283 -7.883 3.775 -70.760 1.00111.66 ATOM 33 CA LEU C 284 -6.058 4.723 -67.638 1.00 76.50 ATOM 34 CA PRO C 285 -6.996 8.382 -67.463 1.00 73.15 ATOM 35 CA LEU C 286 -3.902 10.509 -68.035 1.00 81.38 ATOM 36 CA ALA C 287 -1.932 7.392 -68.974 1.00 79.99 ATOM 37 CA ASN C 288 -0.994 8.954 -72.302 1.00 86.03 ATOM 38 CA ASN C 289 -0.380 12.603 -71.411 1.00 81.47 ATOM 39 CA PRO C 290 3.433 13.069 -71.547 1.00 95.21 ATOM 40 CA GLN C 291 3.020 15.499 -68.657 1.00102.75 ATOM 41 CA GLY C 292 0.695 12.962 -67.017 1.00 94.87 ATOM 42 CA PHE C 293 3.469 11.420 -64.928 1.00 82.62 ATOM 43 CA TRP C 294 4.772 14.621 -63.364 1.00 70.03 ATOM 44 CA LEU C 295 1.145 15.594 -63.045 1.00 73.99 ATOM 45 CA VAL C 296 0.351 12.702 -60.704 1.00 72.62 ATOM 46 CA MET C 297 3.697 12.878 -58.940 1.00 73.54 ATOM 47 CA ALA C 298 3.102 16.527 -58.181 1.00 70.96 ATOM 48 CA LEU C 299 -0.235 15.440 -56.712 1.00 70.76 ATOM 49 CA MET C 300 1.365 12.778 -54.505 1.00 73.76 ATOM 50 CA VAL C 301 4.179 14.994 -53.270 1.00 66.44 ATOM 51 CA VAL C 302 1.704 17.709 -52.347 1.00 75.10 ATOM 52 CA ILE C 303 -0.326 15.164 -50.351 1.00 69.18 ATOM 53 CA ILE C 304 2.738 14.026 -48.405 1.00 66.63 ATOM 54 CA MET C 305 3.377 17.700 -47.715 1.00 78.20 ATOM 55 CA ILE C 306 -0.205 18.137 -46.426 1.00 73.60 ATOM 56 CA PHE C 307 0.108 15.309 -43.936 1.00 80.72 ATOM 57 CA VAL C 308 3.649 16.307 -42.894 1.00 75.12 ATOM 58 CA TYR C 309 2.087 19.677 -42.307 1.00 92.85 ATOM 59 CA ILE C 310 -0.960 18.325 -40.485 1.00 92.58 ATOM 60 CA PHE C 311 1.407 16.661 -38.044 1.00 95.32 ATOM 61 CA ARG C 312 3.672 19.668 -37.560 1.00111.28 ATOM 62 CA ARG C 313 0.553 21.787 -36.979 1.00107.01 ATOM 63 CA SER C 314 -1.289 19.489 -34.550 1.00126.60 ATOM 64 CA GLY C 315 1.046 18.100 -31.904 1.00134.47 ATOM 65 CA TRP C 316 2.764 16.093 -33.123 1.00134.94 ATOM 66 CA ILE C 317 6.091 15.467 -34.822 1.00146.24 TER