1JQ2 - Header Asymmetric Unit

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

KEYWDS POTASSIUM CHANNEL, INTEGRAL MEMBRANE PROTEIN, OPEN STATE

EXPDTA SOLUTION NMR

NUMMDL 50

MDLTYP CA ATOMS ONLY, CHAIN A, B, C, D

AUTHOR Y.-S.LIU,P.SOMPORNPISUT,E.PEROZO

REVDAT 3 24-FEB-09 1JQ2 1 VERSN REVDAT 2 01-APR-03 1JQ2 1 JRNL REVDAT 1 03-OCT-01 1JQ2 0

JRNL AUTH Y.S.LIU,P.SOMPORNPISUT,E.PEROZO JRNL TITL STRUCTURE OF THE KCSA CHANNEL INTRACELLULAR GATE JRNL TITL 2 IN THE OPEN STATE. JRNL REF NAT.STRUCT.BIOL. V. 8 883 2001 JRNL REFN ISSN 1072-8368 JRNL PMID 11573095 JRNL DOI 10.1038/NSB1001-883

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 REMARK 1 TITL 2 USING 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 REMARK 1 TITL 2 ACTIVATION 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, REMARK 1 AUTH 2 J.M.GULBIS,S.L.COHEN,B.T.CHAIT,R.MACKINNON REMARK 1 TITL THE STRUCTURE OF THE POTASSIUM CHANNEL: MOLECULAR REMARK 1 TITL 2 BASIS OF 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: THE STRUCTURE ARE BASED ON: 1) TEN REMARK 3 PAIRS OF INTER-SUBUNIT DISTANCES FOR THE KCSA INNER HELICAL REMARK 3 BUNDLE IN THE CLOSED AND THE OPEN STATES AND 2) THE USE OF THE REMARK 3 CRYSTAL STRUCTURE AS THE CHANNEL IN THE CLOSED STATE, AND AS REMARK 3 THE REFERENCE STRUCTURE. THE COMPUTER PROGRAM REDCAT SEARCHES REMARK 3 (RESTRAINT-DRIVEN CARTESIAN TRANSFORMATION) BASED ON THE REMARK 3 EXHAUSTIVE SAMPLING OF RIGID-BODY MOVEMENT IN CARTESIAN SPACE REMARK 3 FOR THE TM2 INNER BUNDLE IN THE OPEN STATE WERE ALLOWED TO REMARK 3 CONVERGE TO A MINIMAL PENALTY VALUE. THE ENSEMBLE OF THE 50 REMARK 3 LOWEST PENALTY CONFORMERS WAS SUBJECTED TO MOLECULAR MECHANIC REMARK 3 ENERGY MINIMIZATION. FINAL REFINEMENT WAS PERFORMED ON THE REMARK 3 AVERAGE OPEN HELICAL BUNDLE BY ENERGY 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 RCSB ID CODE IS RCSB014054.

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 REMARK 210 MM 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 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1JQ1 RELATED DB: PDB REMARK 900 1JQ1 CONTAINS THE MINIMIZED AVERAGE STRUCTURE

DBREF 1JQ2 A 86 119 UNP P0A334 KCSA_STRLI 86 119 DBREF 1JQ2 B 86 119 UNP P0A334 KCSA_STRLI 86 119 DBREF 1JQ2 C 86 119 UNP P0A334 KCSA_STRLI 86 119 DBREF 1JQ2 D 86 119 UNP P0A334 KCSA_STRLI 86 119

SEQADV 1JQ2 CYS A 90 UNP P0A334 LEU 90 ENGINEERED SEQADV 1JQ2 CYS B 90 UNP P0A334 LEU 90 ENGINEERED SEQADV 1JQ2 CYS C 90 UNP P0A334 LEU 90 ENGINEERED SEQADV 1JQ2 CYS D 90 UNP P0A334 LEU 90 ENGINEERED

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

CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1

ORIGX1 1.000000 0.000000 0.000000 0.00000

ORIGX2 0.000000 1.000000 0.000000 0.00000

ORIGX3 0.000000 0.000000 1.000000 0.00000

SCALE1 1.000000 0.000000 0.000000 0.00000

SCALE2 0.000000 1.000000 0.000000 0.00000

SCALE3 0.000000 0.000000 1.000000 0.00000