PDB Short entry for 3HFC
HEADER    TRANSPORT PROTEIN                       11-MAY-09   3HFC              
TITLE     A TRIMERIC FORM OF THE KV7.1 A DOMAIN TAIL, L602M/L606M               
TITLE    2 MUTANT SEMET                                                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: POTASSIUM VOLTAGE-GATED CHANNEL SUBFAMILY KQT              
COMPND   3 MEMBER 1;                                                            
COMPND   4 CHAIN: A, B, C;                                                      
COMPND   5 FRAGMENT: UNP RESIDUES 583-611;                                      
COMPND   6 SYNONYM: VOLTAGE-GATED POTASSIUM CHANNEL SUBUNIT KV7.1, IKS          
COMPND   7 PRODUCING SLOW VOLTAGE-GATED POTASSIUM CHANNEL SUBUNIT               
COMPND   8 ALPHA KVLQT1, KQT-LIKE 1;                                            
COMPND   9 ENGINEERED: YES;                                                     
COMPND  10 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: KCNQ1, KCNA8, KCNA9, KVLQT1;                                   
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(PLYS)S                                
KEYWDS    COILED COIL, TRIMER, ALTERNATIVE SPLICING, ATRIAL                     
KEYWDS   2 FIBRILLATION, CELL MEMBRANE, CYTOPLASMIC VESICLE, DEAFNESS,          
KEYWDS   3 DISEASE MUTATION, GLYCOPROTEIN, ION TRANSPORT, IONIC                 
KEYWDS   4 CHANNEL, LONG QT SYNDROME, MEMBRANE, PHOSPHOPROTEIN,                 
KEYWDS   5 POLYMORPHISM, POTASSIUM, POTASSIUM CHANNEL, POTASSIUM                
KEYWDS   6 TRANSPORT, SHORT QT SYNDROME, TRANSMEMBRANE, TRANSPORT,              
KEYWDS   7 VOLTAGE-GATED CHANNEL, TRANSPORT PROTEIN                             
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    Q.XU,D.L.MINOR                                                        
REVDAT   2   13-OCT-09 3HFC    1       JRNL                                     
REVDAT   1   01-SEP-09 3HFC    0                                                
JRNL        AUTH   Q.XU,D.L.MINOR                                               
JRNL        TITL   CRYSTAL STRUCTURE OF A TRIMERIC FORM OF THE K(V)7.1          
JRNL        TITL 2 (KCNQ1) A-DOMAIN TAIL COILED-COIL REVEALS                    
JRNL        TITL 3 STRUCTURAL PLASTICITY AND CONTEXT DEPENDENT CHANGES          
JRNL        TITL 4 IN A PUTATIVE COILED-COIL TRIMERIZATION MOTIF.               
JRNL        REF    PROTEIN SCI.                  V.  18  2100 2009              
JRNL        REFN                   ISSN 0961-8368                               
JRNL        PMID   19693805                                                     
JRNL        DOI    10.1002/PRO.224                                              
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.45 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                      
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD WITH PHASES                
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.45                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 32.48                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 92.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 2600                           
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 + TEST SET) : 0.223                           
REMARK   3   R VALUE            (WORKING SET) : 0.221                           
REMARK   3   FREE R VALUE                     : 0.269                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.600                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 120                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.45                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.51                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 116                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 67.21                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2300                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 7                            
REMARK   3   BIN FREE R VALUE                    : 0.1580                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 609                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 12                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 30.47                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 3.58000                                              
REMARK   3    B22 (A**2) : -0.80000                                             
REMARK   3    B33 (A**2) : -0.67000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 2.16000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.344         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.199         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 9.153         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.928                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.862                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):   608 ; 0.021 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):   814 ; 1.859 ; 1.973       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):    74 ; 5.058 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    31 ;35.210 ;24.194       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   128 ;22.087 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     9 ;24.990 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   101 ; 0.120 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   441 ; 0.005 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   298 ; 0.275 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):   433 ; 0.311 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):    21 ; 0.230 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    24 ; 0.261 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     3 ; 0.333 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):   396 ; 1.683 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):   619 ; 1.790 ; 2.000       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   229 ; 3.492 ; 3.000       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   195 ; 5.246 ; 4.500       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE          
REMARK   3  RIDING POSITIONS                                                    
REMARK   4                                                                      
REMARK   4 3HFC COMPLIES WITH FORMAT V. 3.20, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-MAY-09.                  
REMARK 100 THE RCSB ID CODE IS RCSB053065.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ALS                                
REMARK 200  BEAMLINE                       : 8.3.1                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9796                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : AREA DETECTOR                      
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 210                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 2774                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.450                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 40.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.3                               
REMARK 200  DATA REDUNDANCY                : 6.600                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.10100                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.45                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.54                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 93.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.60                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.20300                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 5.400                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD                          
REMARK 200 SOFTWARE USED: SOLVE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 30.92                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.78                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1.6M SODIUM CITRATE, PH 6.5, VAPOR       
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 292K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
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   X+1/2,Y+1/2,Z                                           
REMARK 290       4555   -X+1/2,Y+1/2,-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  1.000000  0.000000  0.000000       30.21550            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       20.61600            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       30.21550            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       20.61600            
REMARK 290   SMTRY3   4  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 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: TRIMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2970 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 5050 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -26.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
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 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   581                                                      
REMARK 465     SER A   582                                                      
REMARK 465     ARG A   583                                                      
REMARK 465     GLY A   584                                                      
REMARK 465     GLY B   581                                                      
REMARK 465     SER B   582                                                      
REMARK 465     ARG B   583                                                      
REMARK 465     GLY B   584                                                      
REMARK 465     SER B   585                                                      
REMARK 465     ASP B   611                                                      
REMARK 465     GLY C   581                                                      
REMARK 465     SER C   582                                                      
REMARK 465     ARG C   583                                                      
REMARK 465     GLY C   584                                                      
REMARK 465     SER C   585                                                      
REMARK 465     ASP C   611                                                      
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    THR B 587      164.23    -49.60                                   
REMARK 500    ILE C 609      -89.84    -75.60                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CHIRAL CENTERS                                             
REMARK 500                                                                      
REMARK 500 UNEXPECTED CONFIGURATION OF THE FOLLOWING CHIRAL                     
REMARK 500 CENTER(S) USING IMPROPER CA--C--CB--N CHIRALITY                      
REMARK 500 M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN                            
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE                   
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (11X,I3,1X,A3,1X,A1,I4,A1,6X,F5.1,6X,A1,10X,A1,3X,A16)       
REMARK 500                                                                      
REMARK 500   M RES CSSEQI    IMPROPER   EXPECTED   FOUND DETAILS                
REMARK 500     ASN A 586        24.6      L          L   OUTSIDE RANGE          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3HFE   RELATED DB: PDB                                   
REMARK 900 A TRIMERIC FORM OF THE KV7.1 A DOMAIN TAIL                           
DBREF  3HFC A  583   611  UNP    P51787   KCNQ1_HUMAN    583    611             
DBREF  3HFC B  583   611  UNP    P51787   KCNQ1_HUMAN    583    611             
DBREF  3HFC C  583   611  UNP    P51787   KCNQ1_HUMAN    583    611             
SEQADV 3HFC GLY A  581  UNP  P51787              EXPRESSION TAG                 
SEQADV 3HFC SER A  582  UNP  P51787              EXPRESSION TAG                 
SEQADV 3HFC MSE A  602  UNP  P51787    LEU   602 ENGINEERED                     
SEQADV 3HFC MSE A  606  UNP  P51787    LEU   606 ENGINEERED                     
SEQADV 3HFC GLY B  581  UNP  P51787              EXPRESSION TAG                 
SEQADV 3HFC SER B  582  UNP  P51787              EXPRESSION TAG                 
SEQADV 3HFC MSE B  602  UNP  P51787    LEU   602 ENGINEERED                     
SEQADV 3HFC MSE B  606  UNP  P51787    LEU   606 ENGINEERED                     
SEQADV 3HFC GLY C  581  UNP  P51787              EXPRESSION TAG                 
SEQADV 3HFC SER C  582  UNP  P51787              EXPRESSION TAG                 
SEQADV 3HFC MSE C  602  UNP  P51787    LEU   602 ENGINEERED                     
SEQADV 3HFC MSE C  606  UNP  P51787    LEU   606 ENGINEERED                     
SEQRES   1 A   31  GLY SER ARG GLY SER ASN THR ILE GLY ALA ARG LEU ASN          
SEQRES   2 A   31  ARG VAL GLU ASP LYS VAL THR GLN MSE ASP GLN ARG MSE          
SEQRES   3 A   31  ALA LEU ILE THR ASP                                          
SEQRES   1 B   31  GLY SER ARG GLY SER ASN THR ILE GLY ALA ARG LEU ASN          
SEQRES   2 B   31  ARG VAL GLU ASP LYS VAL THR GLN MSE ASP GLN ARG MSE          
SEQRES   3 B   31  ALA LEU ILE THR ASP                                          
SEQRES   1 C   31  GLY SER ARG GLY SER ASN THR ILE GLY ALA ARG LEU ASN          
SEQRES   2 C   31  ARG VAL GLU ASP LYS VAL THR GLN MSE ASP GLN ARG MSE          
SEQRES   3 C   31  ALA LEU ILE THR ASP                                          
MODRES 3HFC MSE A  602  MET  SELENOMETHIONINE                                   
MODRES 3HFC MSE A  606  MET  SELENOMETHIONINE                                   
MODRES 3HFC MSE B  602  MET  SELENOMETHIONINE                                   
MODRES 3HFC MSE B  606  MET  SELENOMETHIONINE                                   
MODRES 3HFC MSE C  602  MET  SELENOMETHIONINE                                   
MODRES 3HFC MSE C  606  MET  SELENOMETHIONINE                                   
HET    MSE  A 602       8                                                       
HET    MSE  A 606       8                                                       
HET    MSE  B 602       8                                                       
HET    MSE  B 606       8                                                       
HET    MSE  C 602       8                                                       
HET    MSE  C 606       8                                                       
HETNAM     MSE SELENOMETHIONINE                                                 
FORMUL   1  MSE    6(C5 H11 N O2 SE)                                            
FORMUL   4  HOH   *12(H2 O)                                                     
HELIX    1   1 THR A  587  LEU A  608  1                                  22    
HELIX    2   2 THR B  587  LEU B  608  1                                  22    
HELIX    3   3 THR C  587  THR C  610  1                                  24    
LINK         C   GLN A 601                 N   MSE A 602     1555   1555  1.32  
LINK         C   MSE A 602                 N   ASP A 603     1555   1555  1.33  
LINK         C   ARG A 605                 N   MSE A 606     1555   1555  1.33  
LINK         C   MSE A 606                 N   ALA A 607     1555   1555  1.33  
LINK         C   GLN B 601                 N   MSE B 602     1555   1555  1.32  
LINK         C   MSE B 602                 N   ASP B 603     1555   1555  1.33  
LINK         C   ARG B 605                 N   MSE B 606     1555   1555  1.33  
LINK         C   MSE B 606                 N   ALA B 607     1555   1555  1.33  
LINK         C   GLN C 601                 N   MSE C 602     1555   1555  1.33  
LINK         C   MSE C 602                 N   ASP C 603     1555   1555  1.31  
LINK         C   ARG C 605                 N   MSE C 606     1555   1555  1.33  
LINK         C   MSE C 606                 N   ALA C 607     1555   1555  1.33  
CRYST1   60.431   41.232   34.723  90.00 119.26  90.00 C 1 2 1      12          
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      0.016548  0.000000  0.009272        0.00000                         
SCALE2      0.000000  0.024253  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.033012        0.00000