HEADER MEMBRANE PROTEIN 03-AUG-01 1JQ2 TITLE POTASSIUM CHANNEL (KCSA) OPEN GATE MODEL COMPND MOL_ID: 1; COMPND 2 MOLECULE: VOLTAGE-GATED POTASSIUM CHANNEL; COMPND 3 CHAIN: A, B, C, D; COMPND 4 FRAGMENT: INNER TRANSMEMBRANE SEGMENT (RESIDUES 86-119); COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES LIVIDANS; SOURCE 3 ORGANISM_TAXID: 1916; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: XL-2 BLUE; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PQE32 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH P.SOMPORNPISUT,Y.-S.LIU,E.PEROZO REMARK 1 TITL CALCULATION OF RIGID BODY CONFORMATIONAL CHANGES USING REMARK 1 TITL 2 RESTRAINT-DRIVEN CARTESIAN TRANSFORMATIONS REMARK 1 REF TO BE PUBLISHED REMARK 1 REFN REMARK 1 REFERENCE 2 REMARK 1 AUTH E.PEROZO,D.M.CORTES,L.G.CUELLO REMARK 1 TITL STRUCTURAL REARRANGEMENTS UNDERLYING K+-CHANNEL ACTIVATION REMARK 1 TITL 2 GATING REMARK 1 REF SCIENCE V. 285 73 1999 REMARK 1 REFN ISSN 0036-8075 REMARK 1 DOI 10.1126/SCIENCE.285.5424.73 REMARK 1 REFERENCE 3 REMARK 1 AUTH D.A.DOYLE,J.MORAIS CABRAL,R.A.PFUETZNER,A.KUO,J.M.GULBIS, REMARK 1 AUTH 2 S.L.COHEN,B.T.CHAIT,R.MACKINNON REMARK 1 TITL THE STRUCTURE OF THE POTASSIUM CHANNEL: MOLECULAR BASIS OF REMARK 1 TITL 2 K+ CONDUCTION AND SELECTIVITY REMARK 1 REF SCIENCE V. 280 69 1998 REMARK 1 REFN ISSN 0036-8075 REMARK 1 DOI 10.1126/SCIENCE.280.5360.69 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : AMBER 6.0 REMARK 3 AUTHORS : D.A.CASE ET AL. REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 THE STRUCTURE ARE BASED ON: 1) TEN PAIRS OF INTER-SUBUNIT REMARK 3 DISTANCES FOR THE KCSA INNER REMARK 3 HELICAL BUNDLE IN THE CLOSED AND THE OPEN STATES AND 2) THE USE OF REMARK 3 THE CRYSTAL STRUCTURE REMARK 3 AS THE CHANNEL IN THE CLOSED STATE, AND AS THE REFERENCE REMARK 3 STRUCTURE. THE COMPUTER PROGRAM REMARK 3 REDCAT SEARCHES (RESTRAINT-DRIVEN CARTESIAN TRANSFORMATION) BASED REMARK 3 ON THE EXHAUSTIVE SAMPLING REMARK 3 OF RIGID-BODY MOVEMENT IN CARTESIAN SPACE FOR THE TM2 INNER BUNDLE REMARK 3 IN THE OPEN STATE WERE REMARK 3 ALLOWED TO CONVERGE TO A MINIMAL PENALTY VALUE. THE ENSEMBLE OF REMARK 3 THE 50 LOWEST PENALTY REMARK 3 CONFORMERS WAS SUBJECTED TO MOLECULAR MECHANIC ENERGY REMARK 3 MINIMIZATION. FINAL REFINEMENT WAS REMARK 3 PERFORMED ON THE AVERAGE OPEN HELICAL BUNDLE BY ENERGY REMARK 3 MINIMIZATION. REMARK 4 REMARK 4 1JQ2 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 99 REMARK 99 THE STRUCTURE CONTAINS ONLY ALPHA-CARBONS BECAUSE REMARK 99 THE EXPERIMENTAL DATA USED TO CALCULATE THE STRUCTURES REMARK 99 ARE GOOD ENOUGH ONLY TO THE BACKBONE LEVEL. REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-AUG-01. REMARK 100 THE DEPOSITION ID IS D_1000014054. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 150.0; 150.0 REMARK 210 PH : 7.0; 4.0 REMARK 210 IONIC STRENGTH : 20 MM CITRATE PHOSPHATE; 20 MM REMARK 210 CITRATE PHOSPHATE REMARK 210 PRESSURE : 1 ATM; 1 ATM REMARK 210 SAMPLE CONTENTS : 1.0 MG/ML MIXED WITH REMARK 210 METHANETHIOSULFONATE SPIN LABEL REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : CONTINUOUS WAVE EPR REMARK 210 SPECTROMETER FIELD STRENGTH : 3400 MHZ REMARK 210 SPECTROMETER MODEL : EMX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : EPR AQUISIT 2.32, REDCAT REMARK 210 METHOD USED : FOURIER DECONVOLUTION, REMARK 210 CONFORMATIONAL GRID SEARCH A REMARK 210 CARTESAIN REPRESENTATION REMARK 210 MOLECULAR MECHANIC ENERGY REMARK 210 MINIMIZATION REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 50 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 PENALTY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL REMARK 210 REMARK 210 REMARK: NULL REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1JQ1 RELATED DB: PDB REMARK 900 1JQ1 CONTAINS THE MINIMIZED AVERAGE STRUCTURE SEQRES 1 A 34 LEU TRP GLY ARG CYS VAL ALA VAL VAL VAL MET VAL ALA SEQRES 2 A 34 GLY ILE THR SER PHE GLY LEU VAL THR ALA ALA LEU ALA SEQRES 3 A 34 THR TRP PHE VAL GLY ARG GLU GLN SEQRES 1 B 34 LEU TRP GLY ARG CYS VAL ALA VAL VAL VAL MET VAL ALA SEQRES 2 B 34 GLY ILE THR SER PHE GLY LEU VAL THR ALA ALA LEU ALA SEQRES 3 B 34 THR TRP PHE VAL GLY ARG GLU GLN SEQRES 1 C 34 LEU TRP GLY ARG CYS VAL ALA VAL VAL VAL MET VAL ALA SEQRES 2 C 34 GLY ILE THR SER PHE GLY LEU VAL THR ALA ALA LEU ALA SEQRES 3 C 34 THR TRP PHE VAL GLY ARG GLU GLN SEQRES 1 D 34 LEU TRP GLY ARG CYS VAL ALA VAL VAL VAL MET VAL ALA SEQRES 2 D 34 GLY ILE THR SER PHE GLY LEU VAL THR ALA ALA LEU ALA SEQRES 3 D 34 THR TRP PHE VAL GLY ARG GLU GLN ATOM 1 CA LEU A 86 -23.473 1.004 -19.812 1.00 0.00 C ATOM 2 CA TRP A 87 -22.965 0.660 -15.987 1.00 0.00 C ATOM 3 CA GLY A 88 -21.930 -3.081 -15.885 1.00 0.00 C ATOM 4 CA ARG A 89 -18.393 -2.037 -17.057 1.00 0.00 C ATOM 5 CA CYS A 90 -18.295 0.597 -14.245 1.00 0.00 C ATOM 6 CA VAL A 91 -19.126 -2.206 -11.720 1.00 0.00 C ATOM 7 CA ALA A 92 -16.315 -4.234 -13.391 1.00 0.00 C ATOM 8 CA VAL A 93 -13.814 -1.316 -12.842 1.00 0.00 C ATOM 9 CA VAL A 94 -14.964 -1.044 -9.153 1.00 0.00 C ATOM 10 CA VAL A 95 -14.479 -4.797 -8.378 1.00 0.00 C ATOM 11 CA MET A 96 -11.165 -4.736 -10.366 1.00 0.00 C ATOM 12 CA VAL A 97 -9.614 -1.856 -8.300 1.00 0.00 C ATOM 13 CA ALA A 98 -11.077 -3.355 -5.076 1.00 0.00 C ATOM 14 CA GLY A 99 -9.525 -6.782 -5.976 1.00 0.00 C ATOM 15 CA ILE A 100 -6.111 -5.238 -6.922 1.00 0.00 C ATOM 16 CA THR A 101 -6.003 -3.221 -3.633 1.00 0.00 C ATOM 17 CA SER A 102 -7.305 -6.203 -1.552 1.00 0.00 C ATOM 18 CA PHE A 103 -4.775 -8.847 -2.780 1.00 0.00 C ATOM 19 CA GLY A 104 -2.041 -6.183 -2.538 1.00 0.00 C ATOM 20 CA LEU A 105 -3.215 -5.806 1.096 1.00 0.00 C ATOM 21 CA VAL A 106 -3.351 -9.574 1.919 1.00 0.00 C ATOM 22 CA THR A 107 0.400 -9.270 1.121 1.00 0.00 C ATOM 23 CA ALA A 108 0.877 -5.786 2.741 1.00 0.00 C ATOM 24 CA ALA A 109 1.416 -6.755 6.415 1.00 0.00 C ATOM 25 CA LEU A 110 4.288 -9.188 5.580 1.00 0.00 C ATOM 26 CA ALA A 111 6.815 -6.447 4.605 1.00 0.00 C ATOM 27 CA THR A 112 6.285 -4.271 7.758 1.00 0.00 C ATOM 28 CA TRP A 113 6.213 -7.535 9.819 1.00 0.00 C ATOM 29 CA PHE A 114 9.596 -8.477 8.181 1.00 0.00 C ATOM 30 CA VAL A 115 11.087 -4.980 8.929 1.00 0.00 C ATOM 31 CA GLY A 116 10.060 -5.835 12.549 1.00 0.00 C ATOM 32 CA ARG A 117 13.370 -7.869 12.345 1.00 0.00 C ATOM 33 CA GLU A 118 15.406 -4.674 12.759 1.00 0.00 C ATOM 34 CA GLN A 119 15.978 -6.689 16.063 1.00 0.00 C TER 35 GLN A 119 ATOM 36 CA LEU B 86 -3.442 -20.516 -23.228 1.00 0.00 C ATOM 37 CA TRP B 87 -2.613 -20.624 -19.447 1.00 0.00 C ATOM 38 CA GLY B 88 1.123 -19.578 -19.650 1.00 0.00 C ATOM 39 CA ARG B 89 -0.024 -15.910 -20.097 1.00 0.00 C ATOM 40 CA CYS B 90 -2.282 -16.295 -16.999 1.00 0.00 C ATOM 41 CA VAL B 91 0.803 -17.503 -15.010 1.00 0.00 C ATOM 42 CA ALA B 92 2.635 -14.436 -16.441 1.00 0.00 C ATOM 43 CA VAL B 93 -0.170 -12.097 -15.133 1.00 0.00 C ATOM 44 CA VAL B 94 0.013 -13.833 -11.671 1.00 0.00 C ATOM 45 CA VAL B 95 3.834 -13.419 -11.301 1.00 0.00 C ATOM 46 CA MET B 96 3.534 -9.834 -12.706 1.00 0.00 C ATOM 47 CA VAL B 97 0.943 -8.690 -10.074 1.00 0.00 C ATOM 48 CA ALA B 98 2.877 -10.589 -7.343 1.00 0.00 C ATOM 49 CA GLY B 99 6.150 -8.829 -8.422 1.00 0.00 C ATOM 50 CA ILE B 100 4.478 -5.358 -8.701 1.00 0.00 C ATOM 51 CA THR B 101 2.919 -5.781 -5.203 1.00 0.00 C ATOM 52 CA SER B 102 6.159 -7.241 -3.691 1.00 0.00 C ATOM 53 CA PHE B 103 8.602 -4.500 -4.876 1.00 0.00 C ATOM 54 CA GLY B 104 6.028 -1.881 -3.807 1.00 0.00 C ATOM 55 CA LEU B 105 5.852 -3.714 -0.447 1.00 0.00 C ATOM 56 CA VAL B 106 9.640 -3.799 0.270 1.00 0.00 C ATOM 57 CA THR B 107 9.237 0.043 0.277 1.00 0.00 C ATOM 58 CA ALA B 108 6.007 0.001 2.479 1.00 0.00 C ATOM 59 CA ALA B 109 7.982 -0.040 5.751 1.00 0.00 C ATOM 60 CA LEU B 110 10.441 2.784 4.779 1.00 0.00 C ATOM 61 CA ALA B 111 7.902 5.677 4.545 1.00 0.00 C ATOM 62 CA THR B 112 5.762 4.536 7.566 1.00 0.00 C ATOM 63 CA TRP B 113 9.071 4.085 9.509 1.00 0.00 C ATOM 64 CA PHE B 114 9.983 7.662 8.310 1.00 0.00 C ATOM 65 CA VAL B 115 6.624 9.070 9.647 1.00 0.00 C ATOM 66 CA GLY B 116 7.797 7.435 12.938 1.00 0.00 C ATOM 67 CA ARG B 117 9.797 10.771 13.089 1.00 0.00 C ATOM 68 CA GLU B 118 6.675 12.683 14.173 1.00 0.00 C ATOM 69 CA GLN B 119 9.086 12.852 17.253 1.00 0.00 C TER 70 GLN B 119 ATOM 71 CA LEU C 86 17.883 -0.220 -26.000 1.00 0.00 C ATOM 72 CA TRP C 87 18.440 -0.032 -22.172 1.00 0.00 C ATOM 73 CA GLY C 88 17.499 3.697 -21.649 1.00 0.00 C ATOM 74 CA ARG C 89 13.768 2.680 -21.851 1.00 0.00 C ATOM 75 CA CYS C 90 14.434 -0.073 -19.242 1.00 0.00 C ATOM 76 CA VAL C 91 15.947 2.622 -16.919 1.00 0.00 C ATOM 77 CA ALA C 92 12.797 4.698 -17.668 1.00 0.00 C ATOM 78 CA VAL C 93 10.544 1.727 -16.589 1.00 0.00 C ATOM 79 CA VAL C 94 12.668 1.302 -13.372 1.00 0.00 C ATOM 80 CA VAL C 95 12.406 5.007 -12.316 1.00 0.00 C ATOM 81 CA MET C 96 8.683 4.970 -13.353 1.00 0.00 C ATOM 82 CA VAL C 97 7.796 1.976 -11.067 1.00 0.00 C ATOM 83 CA ALA C 98 10.015 3.423 -8.268 1.00 0.00 C ATOM 84 CA GLY C 99 8.178 6.801 -8.650 1.00 0.00 C ATOM 85 CA ILE C 100 4.686 5.150 -8.823 1.00 0.00 C ATOM 86 CA THR C 101 5.562 3.145 -5.648 1.00 0.00 C ATOM 87 CA SER C 102 7.002 6.255 -3.864 1.00 0.00 C ATOM 88 CA PHE C 103 4.009 8.575 -4.652 1.00 0.00 C ATOM 89 CA GLY C 104 1.647 5.733 -3.594 1.00 0.00 C ATOM 90 CA LEU C 105 3.578 5.316 -0.344 1.00 0.00 C ATOM 91 CA VAL C 106 4.868 8.666 1.054 1.00 0.00 C ATOM 92 CA THR C 107 1.076 8.780 1.714 1.00 0.00 C ATOM 93 CA ALA C 108 1.101 5.294 3.421 1.00 0.00 C ATOM 94 CA ALA C 109 1.136 6.617 7.006 1.00 0.00 C ATOM 95 CA LEU C 110 -1.774 9.131 6.561 1.00 0.00 C ATOM 96 CA ALA C 111 -4.750 6.698 6.214 1.00 0.00 C ATOM 97 CA THR C 112 -3.314 4.038 8.645 1.00 0.00 C ATOM 98 CA TRP C 113 -2.629 6.953 11.084 1.00 0.00 C ATOM 99 CA PHE C 114 -6.303 8.025 10.426 1.00 0.00 C ATOM 100 CA VAL C 115 -7.578 4.463 11.286 1.00 0.00 C ATOM 101 CA GLY C 116 -5.504 5.071 14.487 1.00 0.00 C ATOM 102 CA ARG C 117 -8.675 7.117 15.464 1.00 0.00 C ATOM 103 CA GLU C 118 -10.787 4.008 16.216 1.00 0.00 C ATOM 104 CA GLN C 119 -10.668 5.777 19.709 1.00 0.00 C TER 105 GLN C 119 ATOM 106 CA LEU D 86 -2.118 21.300 -22.600 1.00 0.00 C ATOM 107 CA TRP D 87 -1.835 21.268 -18.739 1.00 0.00 C ATOM 108 CA GLY D 88 -5.493 20.271 -17.912 1.00 0.00 C ATOM 109 CA ARG D 89 -4.595 16.613 -18.803 1.00 0.00 C ATOM 110 CA CYS D 90 -1.539 16.855 -16.468 1.00 0.00 C ATOM 111 CA VAL D 91 -3.906 17.995 -13.640 1.00 0.00 C ATOM 112 CA ALA D 92 -6.136 15.012 -14.619 1.00 0.00 C ATOM 113 CA VAL D 93 -3.121 12.591 -14.253 1.00 0.00 C ATOM 114 CA VAL D 94 -2.275 14.183 -10.821 1.00 0.00 C ATOM 115 CA VAL D 95 -5.847 13.797 -9.399 1.00 0.00 C ATOM 116 CA MET D 96 -6.055 10.272 -10.975 1.00 0.00 C ATOM 117 CA VAL D 97 -2.860 8.996 -9.218 1.00 0.00 C ATOM 118 CA ALA D 98 -3.823 10.853 -5.986 1.00 0.00 C ATOM 119 CA GLY D 99 -7.304 9.186 -6.165 1.00 0.00 C ATOM 120 CA ILE D 100 -5.815 5.686 -6.862 1.00 0.00 C ATOM 121 CA THR D 101 -3.320 6.151 -3.950 1.00 0.00 C ATOM 122 CA SER D 102 -6.001 7.593 -1.594 1.00 0.00 C ATOM 123 CA PHE D 103 -8.744 4.947 -2.142 1.00 0.00 C ATOM 124 CA GLY D 104 -6.127 2.138 -2.088 1.00 0.00 C ATOM 125 CA LEU D 105 -4.915 3.566 1.250 1.00 0.00 C ATOM 126 CA VAL D 106 -8.441 3.982 2.798 1.00 0.00 C ATOM 127 CA THR D 107 -8.466 0.137 2.604 1.00 0.00 C ATOM 128 CA ALA D 108 -4.763 -0.146 3.641 1.00 0.00 C ATOM 129 CA ALA D 109 -5.220 -0.350 7.452 1.00 0.00 C ATOM 130 CA LEU D 110 -7.695 -3.285 7.291 1.00 0.00 C ATOM 131 CA ALA D 111 -5.258 -6.131 6.388 1.00 0.00 C ATOM 132 CA THR D 112 -2.450 -4.998 8.797 1.00 0.00 C ATOM 133 CA TRP D 113 -5.233 -4.657 11.442 1.00 0.00 C ATOM 134 CA PHE D 114 -6.344 -8.243 10.453 1.00 0.00 C ATOM 135 CA VAL D 115 -2.727 -9.627 10.701 1.00 0.00 C ATOM 136 CA GLY D 116 -2.860 -7.925 14.157 1.00 0.00 C ATOM 137 CA ARG D 117 -4.882 -11.133 15.027 1.00 0.00 C ATOM 138 CA GLU D 118 -1.767 -13.375 15.054 1.00 0.00 C ATOM 139 CA GLN D 119 -3.084 -14.017 18.681 1.00 0.00 C TER 140 GLN D 119