HEADER    MEMBRANE PROTEIN                        03-AUG-01   1JQ1              
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, MEMBRANE    
KEYWDS   2 PROTEIN                                                              
EXPDTA    SOLUTION NMR                                                          
MDLTYP    MINIMIZED AVERAGE; CA ATOMS ONLY, CHAIN A, B, C, D                    
AUTHOR    Y.-S.LIU,P.SOMPORNPISUT,E.PEROZO                                      
REVDAT   5   22-MAY-24 1JQ1    1       REMARK                                   
REVDAT   4   27-OCT-21 1JQ1    1       REMARK SEQADV                            
REVDAT   3   24-FEB-09 1JQ1    1       VERSN                                    
REVDAT   2   01-APR-03 1JQ1    1       JRNL                                     
REVDAT   1   03-OCT-01 1JQ1    0                                                
JRNL        AUTH   Y.S.LIU,P.SOMPORNPISUT,E.PEROZO                              
JRNL        TITL   STRUCTURE OF THE KCSA CHANNEL INTRACELLULAR GATE IN THE OPEN 
JRNL        TITL 2 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 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 1JQ1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
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_1000014053.                                   
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   : NULL                               
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 1                                  
REMARK 210 CONFORMERS, SELECTION CRITERIA  : NULL                               
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: 1JQ2   RELATED DB: PDB                                   
REMARK 900 1JQ2 CONTAINS THE ENSEMBLE                                           
DBREF  1JQ1 A   86   119  UNP    P0A334   KCSA_STRLI      86    119             
DBREF  1JQ1 B   86   119  UNP    P0A334   KCSA_STRLI      86    119             
DBREF  1JQ1 C   86   119  UNP    P0A334   KCSA_STRLI      86    119             
DBREF  1JQ1 D   86   119  UNP    P0A334   KCSA_STRLI      86    119             
SEQADV 1JQ1 CYS A   90  UNP  P0A334    LEU    90 ENGINEERED MUTATION            
SEQADV 1JQ1 CYS B   90  UNP  P0A334    LEU    90 ENGINEERED MUTATION            
SEQADV 1JQ1 CYS C   90  UNP  P0A334    LEU    90 ENGINEERED MUTATION            
SEQADV 1JQ1 CYS D   90  UNP  P0A334    LEU    90 ENGINEERED MUTATION            
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          
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