PDB Short entry for 1N9P
HEADER    METAL TRANSPORT                         26-NOV-02   1N9P              
TITLE     CRYSTAL STRUCTURE OF THE CYTOPLASMIC DOMAIN OF G-PROTEIN ACTIVATED    
TITLE    2 INWARD RECTIFIER POTASSIUM CHANNEL 1                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: G PROTEIN-ACTIVATED INWARD RECTIFIER POTASSIUM CHANNEL 1;  
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: GIRK1; POTASSIUM CHANNEL, INWARDLY RECTIFYING, SUBFAMILY J, 
COMPND   5 MEMBER 3; INWARD RECTIFIER K+ CHANNEL KIR3.1; KGA; KGB1;             
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE   3 ORGANISM_COMMON: HOUSE MOUSE;                                        
SOURCE   4 ORGANISM_TAXID: 10090;                                               
SOURCE   5 GENE: GIRK1;                                                         
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: B834(DE3);                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET28B(+)                                 
KEYWDS    BETA BARREL, CYTOPLASMIC DOMAIN, G PROTEIN, INWARD RECTIFIER,         
KEYWDS   2 POTASSIUM CHANNEL, METAL TRANSPORT                                   
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.NISHIDA,R.MACKINNON                                                 
REVDAT   4   02-AUG-17 1N9P    1       SOURCE REMARK                            
REVDAT   3   13-JUL-11 1N9P    1       VERSN                                    
REVDAT   2   24-FEB-09 1N9P    1       VERSN                                    
REVDAT   1   07-JAN-03 1N9P    0                                                
JRNL        AUTH   M.NISHIDA,R.MACKINNON                                        
JRNL        TITL   STRUCTURAL BASIS OF INWARD RECTIFICATION: CYTOPLASMIC PORE   
JRNL        TITL 2 OF THE G PROTEIN-GATED INWARD RECTIFIER GIRK1 AT 1.8 A       
JRNL        TITL 3 RESOLUTION                                                   
JRNL        REF    CELL(CAMBRIDGE,MASS.)         V. 111   957 2002              
JRNL        REFN                   ISSN 0092-8674                               
JRNL        PMID   12507423                                                     
JRNL        DOI    10.1016/S0092-8674(02)01227-8                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 10.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 43936                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.231                           
REMARK   3   FREE R VALUE                     : 0.253                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2237                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 10                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.80                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.86                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 95.30                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 4054                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2580                       
REMARK   3   BIN FREE R VALUE                    : 0.3190                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 4.80                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 215                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1585                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 140                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 17.00                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 21.00                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.41000                                              
REMARK   3    B22 (A**2) : 0.41000                                              
REMARK   3    B33 (A**2) : -0.82000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.007                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.357                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 26.59                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.150                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : ISOTROPIC                                 
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.400 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.400 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.100 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 3.100 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : 0.50                                                 
REMARK   3   BSOL        : 56.37                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN.PARAM                                  
REMARK   3  PARAMETER FILE  2  : WATER.PARAM                                    
REMARK   3  PARAMETER FILE  3  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: METHIONINE WAS REPLACED BY                
REMARK   3  SELENOMETHIONINE THROUGH REFINEMENT AND ANOMALOUS SIGNAL OF         
REMARK   3  SELENIUM THAT WAS BASED ON THE EXPERIMENTAL VALUE WAS               
REMARK   3  INCORPORATED. BIJVOET PAIRS WERE TREATED AS SEPARATE                
REMARK   3  REFLECTIONS. NO TEST FLAG WAS USED IN THE FINAL CYCLE OF            
REMARK   3  REFINEMENT.                                                         
REMARK   4                                                                      
REMARK   4 1N9P COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-NOV-02.                  
REMARK 100 THE DEPOSITION ID IS D_1000017693.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 11-AUG-02                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : CHESS                              
REMARK 200  BEAMLINE                       : F2                                 
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9792, 0.9790, 0.9640             
REMARK 200  MONOCHROMATOR                  : SILICON                            
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 23971                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.800                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.5                               
REMARK 200  DATA REDUNDANCY                : 19.10                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.05700                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 20.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.86                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 96.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 13.20                              
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.17400                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 12.90                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: MAD                                            
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD                          
REMARK 200 SOFTWARE USED: MLPHARE                                               
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.73                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.57                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: DTT, HEPES, MAGNESIUM ACETATE, PEG       
REMARK 280  400, SODIUM CHLORIDE, TRIS-HCL, PH 7.0, VAPOR DIFFUSION, SITTING    
REMARK 280  DROP, TEMPERATURE 277K                                              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 4 21 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -Y+1/2,X+1/2,Z                                          
REMARK 290       4555   Y+1/2,-X+1/2,Z                                          
REMARK 290       5555   -X+1/2,Y+1/2,-Z                                         
REMARK 290       6555   X+1/2,-Y+1/2,-Z                                         
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-Z                                                
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       38.01000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       38.01000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       38.01000            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       38.01000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       38.01000            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       38.01000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       38.01000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       38.01000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A TETRAMER GENERATED FROM THE     
REMARK 300 SUBUNIT IN THE ASYMMETRIC UNIT BY THE OPERATIONS: X,Y,Z AND -Y+1/2,  
REMARK 300 X+1/2,Z AND -X,-Y+1,Z AND Y-1/2,-X+1/2,Z.                            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 10360 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 36540 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -9.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
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 350   BIOMT1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       76.02000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3  0.000000 -1.000000  0.000000       38.01000            
REMARK 350   BIOMT2   3  1.000000  0.000000  0.000000       38.01000            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   4  0.000000  1.000000  0.000000      -38.01000            
REMARK 350   BIOMT2   4 -1.000000  0.000000  0.000000       38.01000            
REMARK 350   BIOMT3   4  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 463  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 500  LIES ON A SPECIAL POSITION.                          
REMARK 465                                                                      
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     GLY A    39                                                      
REMARK 465     SER A    40                                                      
REMARK 465     LYS A    41                                                      
REMARK 465     LYS A    42                                                      
REMARK 465     GLY A    58                                                      
REMARK 465     ASN A    59                                                      
REMARK 465     LEU A    60                                                      
REMARK 465     GLY A    61                                                      
REMARK 465     SER A    62                                                      
REMARK 465     LEU A   371                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ASN A  54       57.53   -102.24                                   
REMARK 500    GLU A 192       84.65    -68.60                                   
REMARK 500    SER A 221       79.97   -154.64                                   
REMARK 500    THR A 257      -27.20   -144.22                                   
REMARK 500    GLU A 335       61.92     76.82                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  1N9P A   41    63  UNP    P63250   IRK3_MOUSE      41     63             
DBREF  1N9P A  190   371  UNP    P35562   IRK3_MOUSE     190    371             
SEQADV 1N9P GLY A   39  UNP  P63250              CLONING ARTIFACT               
SEQADV 1N9P SER A   40  UNP  P63250              CLONING ARTIFACT               
SEQADV 1N9P MSE A  195  UNP  P63250    MET   195 MODIFIED RESIDUE               
SEQADV 1N9P MSE A  204  UNP  P63250    MET   204 MODIFIED RESIDUE               
SEQADV 1N9P MSE A  212  UNP  P63250    MET   212 MODIFIED RESIDUE               
SEQADV 1N9P MSE A  223  UNP  P63250    MET   223 MODIFIED RESIDUE               
SEQADV 1N9P MSE A  288  UNP  P63250    MET   288 MODIFIED RESIDUE               
SEQADV 1N9P MSE A  308  UNP  P63250    MET   308 MODIFIED RESIDUE               
SEQADV 1N9P MSE A  364  UNP  P63250    MET   364 MODIFIED RESIDUE               
SEQADV 1N9P MSE A  367  UNP  P63250    MET   367 MODIFIED RESIDUE               
SEQRES   1 A  207  GLY SER LYS LYS ARG GLN ARG PHE VAL ASP LYS ASN GLY          
SEQRES   2 A  207  ARG CYS ASN VAL GLN HIS GLY ASN LEU GLY SER GLU ARG          
SEQRES   3 A  207  ALA GLU THR LEU MSE PHE SER GLU HIS ALA VAL ILE SER          
SEQRES   4 A  207  MSE ARG ASP GLY LYS LEU THR LEU MSE PHE ARG VAL GLY          
SEQRES   5 A  207  ASN LEU ARG ASN SER HIS MSE VAL SER ALA GLN ILE ARG          
SEQRES   6 A  207  CYS LYS LEU LEU LYS SER ARG GLN THR PRO GLU GLY GLU          
SEQRES   7 A  207  PHE LEU PRO LEU ASP GLN LEU GLU LEU ASP VAL GLY PHE          
SEQRES   8 A  207  SER THR GLY ALA ASP GLN LEU PHE LEU VAL SER PRO LEU          
SEQRES   9 A  207  THR ILE CYS HIS VAL ILE ASP ALA LYS SER PRO PHE TYR          
SEQRES  10 A  207  ASP LEU SER GLN ARG SER MSE GLN THR GLU GLN PHE GLU          
SEQRES  11 A  207  VAL VAL VAL ILE LEU GLU GLY ILE VAL GLU THR THR GLY          
SEQRES  12 A  207  MSE THR CYS GLN ALA ARG THR SER TYR THR GLU ASP GLU          
SEQRES  13 A  207  VAL LEU TRP GLY HIS ARG PHE PHE PRO VAL ILE SER LEU          
SEQRES  14 A  207  GLU GLU GLY PHE PHE LYS VAL ASP TYR SER GLN PHE HIS          
SEQRES  15 A  207  ALA THR PHE GLU VAL PRO THR PRO PRO TYR SER VAL LYS          
SEQRES  16 A  207  GLU GLN GLU GLU MSE LEU LEU MSE SER SER PRO LEU              
MODRES 1N9P MSE A  195  MET  SELENOMETHIONINE                                   
MODRES 1N9P MSE A  204  MET  SELENOMETHIONINE                                   
MODRES 1N9P MSE A  212  MET  SELENOMETHIONINE                                   
MODRES 1N9P MSE A  223  MET  SELENOMETHIONINE                                   
MODRES 1N9P MSE A  288  MET  SELENOMETHIONINE                                   
MODRES 1N9P MSE A  308  MET  SELENOMETHIONINE                                   
MODRES 1N9P MSE A  364  MET  SELENOMETHIONINE                                   
MODRES 1N9P MSE A  367  MET  SELENOMETHIONINE                                   
HET    MSE  A 195       8                                                       
HET    MSE  A 204       8                                                       
HET    MSE  A 212       8                                                       
HET    MSE  A 223       8                                                       
HET    MSE  A 288       8                                                       
HET    MSE  A 308       8                                                       
HET    MSE  A 364       8                                                       
HET    MSE  A 367       8                                                       
HETNAM     MSE SELENOMETHIONINE                                                 
FORMUL   1  MSE    8(C5 H11 N O2 SE)                                            
FORMUL   2  HOH   *140(H2 O)                                                    
HELIX    1   1 ARG A  286  THR A  290  5                                   5    
HELIX    2   2 TYR A  342  PHE A  345  5                                   4    
HELIX    3   3 SER A  357  SER A  369  1                                  13    
SHEET    1   A 3 VAL A  55  GLN A  56  0                                        
SHEET    2   A 3 PHE A 338  VAL A 340  1  O  PHE A 338   N  GLN A  56           
SHEET    3   A 3 ILE A 331  LEU A 333 -1  N  SER A 332   O  LYS A 339           
SHEET    1   B 4 LEU A 268  VAL A 273  0                                        
SHEET    2   B 4 LYS A 208  VAL A 215 -1  N  PHE A 213   O  ILE A 270           
SHEET    3   B 4 ALA A 200  ARG A 205 -1  N  SER A 203   O  THR A 210           
SHEET    4   B 4 VAL A 321  TRP A 323  1  O  LEU A 322   N  ALA A 200           
SHEET    1   C 4 ALA A 312  THR A 317  0                                        
SHEET    2   C 4 GLU A 294  VAL A 303 -1  N  VAL A 295   O  TYR A 316           
SHEET    3   C 4 MSE A 223  GLN A 237 -1  N  LEU A 233   O  GLU A 294           
SHEET    4   C 4 PHE A 243  GLU A 250 -1  O  LEU A 244   N  ARG A 236           
SHEET    1   D 4 ALA A 312  THR A 317  0                                        
SHEET    2   D 4 GLU A 294  VAL A 303 -1  N  VAL A 295   O  TYR A 316           
SHEET    3   D 4 MSE A 223  GLN A 237 -1  N  LEU A 233   O  GLU A 294           
SHEET    4   D 4 GLN A 261  PHE A 263 -1  O  LEU A 262   N  ALA A 226           
SHEET    1   E 2 HIS A 325  PHE A 327  0                                        
SHEET    2   E 2 THR A 348  GLU A 350 -1  O  PHE A 349   N  ARG A 326           
LINK         C   LEU A 194                 N   MSE A 195     1555   1555  1.33  
LINK         C   MSE A 195                 N   PHE A 196     1555   1555  1.33  
LINK         C   SER A 203                 N   MSE A 204     1555   1555  1.33  
LINK         C   MSE A 204                 N   ARG A 205     1555   1555  1.33  
LINK         C   LEU A 211                 N   MSE A 212     1555   1555  1.33  
LINK         C   MSE A 212                 N   PHE A 213     1555   1555  1.33  
LINK         C   HIS A 222                 N   MSE A 223     1555   1555  1.33  
LINK         C   MSE A 223                 N   VAL A 224     1555   1555  1.34  
LINK         C   SER A 287                 N   MSE A 288     1555   1555  1.33  
LINK         C   MSE A 288                 N   GLN A 289     1555   1555  1.33  
LINK         C   GLY A 307                 N   MSE A 308     1555   1555  1.33  
LINK         C   MSE A 308                 N   THR A 309     1555   1555  1.33  
LINK         C   GLU A 363                 N   MSE A 364     1555   1555  1.33  
LINK         C   MSE A 364                 N   LEU A 365     1555   1555  1.33  
LINK         C   LEU A 366                 N   MSE A 367     1555   1555  1.33  
LINK         C   MSE A 367                 N   SER A 368     1555   1555  1.33  
CRYST1   76.020   76.020   86.110  90.00  90.00  90.00 P 4 21 2      8          
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      0.013154  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.013154  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.011613        0.00000