HEADER METAL TRANSPORT/Immune System 31-DEC-69 7LJB TITLE Human TRAAK K+ channel mutant G158D in a K+ bound conductive TITLE 2 conformation COMPND MOL_ID: 1; COMPND 2 MOLECULE: Isoform 2 of Potassium channel subfamily K member 4; COMPND 3 CHAIN: A, B; COMPND 4 MUTATION: YES; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 1; COMPND 7 Isoform 2 of Potassium channel subfamily K member 4; COMPND 8 CHAIN: A, B; COMPND 9 MUTATION: YES; COMPND 10 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.97 ANGSTORMS REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 THR B 106 REMARK 465 SER B 107 REMARK 465 GLN B 108 REMARK 465 SER B 109 REMARK 465 SER B 110 REMARK 465 HIS B 111 DBREF 7LJB A 1 290 UNP Q9NYG8-2 KCNK4-2_HUM 1 290 DBREF 7LJB B 1 290 UNP Q9NYG8-2 KCNK4-2_HUM 1 290 SEQRES 1 B 153 ARG SER THR THR LEU LEU ALA LEU LEU ALA LEU VAL LEU SEQRES 2 B 153 LEU TYR LEU VAL SER GLY ALA LEU VAL PHE ARG ALA LEU SEQRES 3 B 153 GLU GLN PRO HIS GLU GLN GLN ALA GLN ARG GLU LEU GLY SEQRES 4 B 153 GLU VAL ARG GLU LYS PHE LEU ARG ALA HIS PRO CYS VAL SEQRES 5 B 153 SER ASP GLN GLU LEU GLY LEU LEU ILE LYS GLU VAL ALA SEQRES 6 B 153 ASP ALA LEU GLY GLY GLY ALA ASP PRO GLU THR GLN SER SEQRES 7 B 153 THR SER GLN SER SER HIS SER ALA TRP ASP LEU GLY SER SEQRES 8 B 153 ALA PHE PHE PHE SER GLY THR ILE ILE THR THR ILE GLY SEQRES 9 B 153 TYR GLY ASN VAL ALA LEU ARG THR ASP ALA GLY ARG LEU SEQRES 10 B 153 PHE CYS ILE PHE TYR ALA LEU VAL GLY ILE PRO LEU PHE SEQRES 11 B 153 ASP ILE LEU LEU ALA GLY VAL GLY ASP ARG LEU GLY SER SEQRES 12 B 153 SER LEU ARG HIS GLY ILE GLY HIS ILE GLU ATOM 1 N ARG A 28 69.253 8.293 -21.053 1.00212.51 ATOM 2 CA ARG A 28 68.735 7.264 -20.098 1.00206.38 ATOM 3 C ARG A 28 68.638 7.843 -18.680 1.00203.75 ATOM 4 O ARG A 28 67.655 7.515 -18.019 1.00205.16 ATOM 5 CB ARG A 28 69.590 5.996 -20.133 1.00204.31 ATOM 6 CG ARG A 28 69.434 5.192 -21.419 1.00202.90 ATOM 7 CD ARG A 28 68.134 4.410 -21.498 1.00194.77 ATOM 8 NE ARG A 28 67.877 3.651 -20.278 1.00187.49 ATOM 9 CZ ARG A 28 68.429 2.479 -19.948 1.00182.19 ATOM 10 NH1 ARG A 28 68.101 1.910 -18.800 1.00181.23 ATOM 11 NH2 ARG A 28 69.304 1.878 -20.737 1.00180.49 ATOM 12 N SER A 29 69.576 8.697 -18.246 1.00204.72 ATOM 13 CA SER A 29 69.520 9.450 -16.958 1.00203.76 ATOM 14 C SER A 29 68.222 10.259 -16.873 1.00204.55 ATOM 15 O SER A 29 67.503 10.190 -15.839 1.00196.68 ATOM 16 CB SER A 29 70.675 10.416 -16.822 1.00208.28 ATOM 17 OG SER A 29 71.910 9.833 -17.193 1.00211.05 ATOM 18 N THR A 30 68.003 11.060 -17.922 1.00212.17 ATOM 19 CA THR A 30 66.849 11.982 -18.128 1.00212.05 ATOM 20 C THR A 30 65.542 11.182 -18.013 1.00205.69 ATOM 21 O THR A 30 64.635 11.643 -17.292 1.00197.01 ATOM 22 CB THR A 30 67.010 12.766 -19.449 1.00213.82 ATOM 23 OG1 THR A 30 65.825 13.531 -19.678 1.00213.67 ATOM 24 CG2 THR A 30 67.288 11.917 -20.674 1.00209.42 ATOM 25 N THR A 31 65.471 10.032 -18.700 1.00205.16 ATOM 26 CA THR A 31 64.291 9.133 -18.799 1.00199.89 ATOM 27 C THR A 31 63.978 8.603 -17.392 1.00191.44 ATOM 28 O THR A 31 62.804 8.707 -16.980 1.00185.66 ATOM 29 CB THR A 31 64.489 8.029 -19.862 1.00200.72 ATOM 30 OG1 THR A 31 65.303 6.974 -19.346 1.00203.62 ATOM 31 CG2 THR A 31 65.114 8.498 -21.164 1.00201.81 ATOM 32 N LEU A 32 64.994 8.119 -16.666 1.00188.16 ATOM 33 CA LEU A 32 64.843 7.510 -15.316 1.00181.99 ATOM 34 C LEU A 32 64.105 8.469 -14.373 1.00184.26 ATOM 35 O LEU A 32 63.165 8.003 -13.693 1.00181.53 ATOM 36 CB LEU A 32 66.216 7.130 -14.751 1.00177.87 ATOM 37 CG LEU A 32 66.849 5.856 -15.315 1.00172.76 ATOM 38 CD1 LEU A 32 68.028 5.440 -14.461 1.00171.95 ATOM 39 CD2 LEU A 32 65.862 4.703 -15.436 1.00166.91 ATOM 40 N LEU A 33 64.502 9.745 -14.325 1.00189.12 ATOM 41 CA LEU A 33 63.828 10.770 -13.479 1.00192.18 ATOM 42 C LEU A 33 62.432 11.091 -14.033 1.00191.78 ATOM 43 O LEU A 33 61.500 11.307 -13.219 1.00193.04 ATOM 44 CB LEU A 33 64.685 12.037 -13.407 1.00197.24 ATOM 45 CG LEU A 33 64.181 13.081 -12.407 1.00199.56 ATOM 46 CD1 LEU A 33 65.332 13.821 -11.741 1.00203.55 ATOM 47 CD2 LEU A 33 63.214 14.053 -13.076 1.00202.73 ATOM 48 N ALA A 34 62.291 11.174 -15.359 1.00189.59 ATOM 49 CA ALA A 34 60.978 11.333 -16.029 1.00184.92 ATOM 50 C ALA A 34 60.065 10.197 -15.552 1.00176.86 ATOM 51 O ALA A 34 58.918 10.484 -15.181 1.00174.67 ATOM 52 CB ALA A 34 61.115 11.354 -17.533 1.00187.28 ATOM 53 N LEU A 35 60.611 8.978 -15.489 1.00170.17 ATOM 54 CA LEU A 35 59.919 7.756 -15.006 1.00162.24 ATOM 55 C LEU A 35 59.689 7.854 -13.487 1.00157.36 ATOM 56 O LEU A 35 58.604 7.422 -13.050 1.00156.35 ATOM 57 CB LEU A 35 60.745 6.522 -15.387 1.00158.76 ATOM 58 CG LEU A 35 60.026 5.188 -15.198 1.00155.12 ATOM 59 CD1 LEU A 35 58.833 5.100 -16.130 1.00155.66 ATOM 60 CD2 LEU A 35 60.962 4.010 -15.414 1.00151.70 ATOM 61 N LEU A 36 60.660 8.365 -12.713 1.00154.31 ATOM