HEADER    PROTEIN BINDING                         20-AUG-12   4GOW              
TITLE     CRYSTAL STRUCTURE OF CA2+/CAM:KV7.4 (KCNQ4) B HELIX COMPLEX           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CALMODULIN;                                                
COMPND   3 CHAIN: D;                                                            
COMPND   4 SYNONYM: CAM;                                                        
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: POTASSIUM VOLTAGE-GATED CHANNEL SUBFAMILY KQT MEMBER 4;    
COMPND   8 CHAIN: A;                                                            
COMPND   9 FRAGMENT: UNP RESIDUES 522-593;                                      
COMPND  10 SYNONYM: KQT-LIKE 4, POTASSIUM CHANNEL SUBUNIT ALPHA KVLQT4, VOLTAGE-
COMPND  11 GATED POTASSIUM CHANNEL SUBUNIT KV7.4;                               
COMPND  12 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: CALM1, CALM, CAM, CAM1, CALM2, CAM2, CAMB, CALM3, CALML2,      
SOURCE   6 CAM3, CAMC, CAMIII;                                                  
SOURCE   7 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   8 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   9 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)PLYSS;                            
SOURCE  10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  11 EXPRESSION_SYSTEM_PLASMID: PET28;                                    
SOURCE  12 MOL_ID: 2;                                                           
SOURCE  13 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  14 ORGANISM_COMMON: HUMAN;                                              
SOURCE  15 ORGANISM_TAXID: 9606;                                                
SOURCE  16 GENE: KCNQ4;                                                         
SOURCE  17 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  18 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  19 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)PLYSS;                            
SOURCE  20 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  21 EXPRESSION_SYSTEM_PLASMID: PET28                                     
KEYWDS    PROTEIN COMPLEX, PROTEIN BINDING, ION CHANNEL, CALMODULIN, POTASSIUM  
KEYWDS   2 CHANNEL                                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    Q.XU,A.CHANG,A.TOLIA,D.L.MINOR JR.                                    
REVDAT   3   28-FEB-24 4GOW    1       REMARK LINK                              
REVDAT   2   22-MAY-13 4GOW    1       JRNL                                     
REVDAT   1   12-DEC-12 4GOW    0                                                
JRNL        AUTH   Q.XU,A.CHANG,A.TOLIA,D.L.MINOR                               
JRNL        TITL   STRUCTURE OF A CA(2+)/CAM:KV7.4 (KCNQ4) B-HELIX COMPLEX      
JRNL        TITL 2 PROVIDES INSIGHT INTO M CURRENT MODULATION.                  
JRNL        REF    J.MOL.BIOL.                   V. 425   378 2013              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   23178170                                                     
JRNL        DOI    10.1016/J.JMB.2012.11.023                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.7.2_869                                     
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 48.09                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.340                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 11699                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.238                           
REMARK   3   R VALUE            (WORKING SET) : 0.236                           
REMARK   3   FREE R VALUE                     : 0.268                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 562                             
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 48.1011 -  4.1268    1.00     2932   157  0.2175 0.2201        
REMARK   3     2  4.1268 -  3.2758    1.00     2758   139  0.2214 0.2889        
REMARK   3     3  3.2758 -  2.8617    1.00     2755   118  0.2788 0.3394        
REMARK   3     4  2.8617 -  2.6001    1.00     2692   148  0.3252 0.4055        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.20                                          
REMARK   3   SHRINKAGE RADIUS   : 0.98                                          
REMARK   3   K_SOL              : 0.35                                          
REMARK   3   B_SOL              : 55.17                                         
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.570            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 27.710           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -3.82600                                             
REMARK   3    B22 (A**2) : -3.82600                                             
REMARK   3    B33 (A**2) : 7.65190                                              
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.003           1351                                  
REMARK   3   ANGLE     :  0.790           1809                                  
REMARK   3   CHIRALITY :  0.055            202                                  
REMARK   3   PLANARITY :  0.003            241                                  
REMARK   3   DIHEDRAL  : 19.503            522                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 3                                          
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: CHAIN 'D' AND (RESSEQ 3:78)                            
REMARK   3    ORIGIN FOR THE GROUP (A): -34.6552  27.7043  -4.8043              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2971 T22:   0.2269                                     
REMARK   3      T33:   0.2564 T12:  -0.0618                                     
REMARK   3      T13:  -0.2212 T23:   0.0273                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   4.5014 L22:   6.6490                                     
REMARK   3      L33:   4.3616 L12:   0.4108                                     
REMARK   3      L13:  -0.3667 L23:   0.0144                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.2434 S12:   0.4209 S13:   0.2464                       
REMARK   3      S21:  -0.2187 S22:   0.5699 S23:   0.4436                       
REMARK   3      S31:   0.2098 S32:   0.0766 S33:  -0.2663                       
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    SELECTION: CHAIN 'D' AND (RESSEQ 81:146)                          
REMARK   3    ORIGIN FOR THE GROUP (A): -14.7476  27.5230   5.6861              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.4320 T22:   0.6931                                     
REMARK   3      T33:   0.3349 T12:  -0.1136                                     
REMARK   3      T13:  -0.1189 T23:   0.0161                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   4.7442 L22:   4.4483                                     
REMARK   3      L33:   2.9159 L12:   1.9305                                     
REMARK   3      L13:   0.9674 L23:   0.2493                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.3294 S12:   0.8231 S13:  -0.4348                       
REMARK   3      S21:  -0.2621 S22:  -0.3290 S23:  -0.1692                       
REMARK   3      S31:   0.6169 S32:  -0.2184 S33:   0.0580                       
REMARK   3   TLS GROUP : 3                                                      
REMARK   3    SELECTION: CHAIN 'A' AND (RESSEQ 524:549)                         
REMARK   3    ORIGIN FOR THE GROUP (A): -34.0704  27.3885   2.9346              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.3057 T22:   0.2511                                     
REMARK   3      T33:   0.2640 T12:   0.0607                                     
REMARK   3      T13:  -0.1783 T23:   0.0142                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   2.8297 L22:   7.0852                                     
REMARK   3      L33:   6.7579 L12:   1.0775                                     
REMARK   3      L13:  -1.5615 L23:  -1.3172                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.2694 S12:  -0.4431 S13:  -0.4162                       
REMARK   3      S21:   0.8272 S22:  -0.0125 S23:   0.0322                       
REMARK   3      S31:   0.1707 S32:   0.2715 S33:  -0.1075                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 4GOW COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-AUG-12.                  
REMARK 100 THE DEPOSITION ID IS D_1000074455.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRL                               
REMARK 200  BEAMLINE                       : BL12-2                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.006                              
REMARK 200  MONOCHROMATOR                  : LN2-COOLED MONOCHROMATOR           
REMARK 200                                   SI(220), PHI=0 OR 90 DEGREES       
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM 3.3.9                       
REMARK 200  DATA SCALING SOFTWARE          : SCALA 3.3.9                        
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 11737                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 90.131                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY                : 16.70                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.10300                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 18.9000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.74                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 12.70                              
REMARK 200  R MERGE FOR SHELL          (I) : 0.96500                            
REMARK 200  R SYM FOR SHELL            (I) : 0.96500                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 0.800                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 66.10                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.63                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1.6M AMMONIUM SULFATE, 0.2M SODIUM       
REMARK 280  CITRATE (PH 6.0), 0.1M SODIUM TARTRATE, 4% ISOPROPANOL, VAPOR       
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 298K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 65 2 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+2/3                                            
REMARK 290       3555   -X+Y,-X,Z+1/3                                           
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+1/6                                            
REMARK 290       6555   X-Y,X,Z+5/6                                             
REMARK 290       7555   Y,X,-Z+2/3                                              
REMARK 290       8555   X-Y,-Y,-Z                                               
REMARK 290       9555   -X,-X+Y,-Z+1/3                                          
REMARK 290      10555   -Y,-X,-Z+1/6                                            
REMARK 290      11555   -X+Y,Y,-Z+1/2                                           
REMARK 290      12555   X,X-Y,-Z+5/6                                            
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       75.81933            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       37.90967            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       56.86450            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       18.95483            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       94.77417            
REMARK 290   SMTRY1   7 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       75.81933            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   9 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   9  0.000000  0.000000 -1.000000       37.90967            
REMARK 290   SMTRY1  10  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  10 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       18.95483            
REMARK 290   SMTRY1  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000       56.86450            
REMARK 290   SMTRY1  12  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       94.77417            
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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3280 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 9560 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -72.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: D, 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 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     THR D    79                                                      
REMARK 465     ASP D    80                                                      
REMARK 465     THR A   522                                                      
REMARK 465     VAL A   523                                                      
REMARK 465     LYS A   550                                                      
REMARK 465     GLU A   551                                                      
REMARK 465     THR A   552                                                      
REMARK 465     LEU A   553                                                      
REMARK 465     ARG A   554                                                      
REMARK 465     PRO A   555                                                      
REMARK 465     TYR A   556                                                      
REMARK 465     ASP A   557                                                      
REMARK 465     VAL A   558                                                      
REMARK 465     LYS A   559                                                      
REMARK 465     ASP A   560                                                      
REMARK 465     VAL A   561                                                      
REMARK 465     ILE A   562                                                      
REMARK 465     GLU A   563                                                      
REMARK 465     GLN A   564                                                      
REMARK 465     TYR A   565                                                      
REMARK 465     SER A   566                                                      
REMARK 465     ALA A   567                                                      
REMARK 465     GLY A   568                                                      
REMARK 465     HIS A   569                                                      
REMARK 465     LEU A   570                                                      
REMARK 465     ASP A   571                                                      
REMARK 465     MET A   572                                                      
REMARK 465     LEU A   573                                                      
REMARK 465     GLY A   574                                                      
REMARK 465     ARG A   575                                                      
REMARK 465     ILE A   576                                                      
REMARK 465     LYS A   577                                                      
REMARK 465     SER A   578                                                      
REMARK 465     LEU A   579                                                      
REMARK 465     GLN A   580                                                      
REMARK 465     THR A   581                                                      
REMARK 465     ARG A   582                                                      
REMARK 465     VAL A   583                                                      
REMARK 465     ASP A   584                                                      
REMARK 465     GLN A   585                                                      
REMARK 465     ILE A   586                                                      
REMARK 465     VAL A   587                                                      
REMARK 465     GLY A   588                                                      
REMARK 465     ARG A   589                                                      
REMARK 465     GLY A   590                                                      
REMARK 465     PRO A   591                                                      
REMARK 465     GLY A   592                                                      
REMARK 465     ASP A   593                                                      
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    ASP D  20       74.04    -69.45                                   
REMARK 500    LYS D  75       54.92   -119.63                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA D 204  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP D 131   OD1                                                    
REMARK 620 2 ASP D 131   OD2  40.7                                              
REMARK 620 3 ASP D 133   OD2  91.7  55.6                                        
REMARK 620 4 ASP D 133   OD1 101.6  83.4  40.6                                  
REMARK 620 5 GLU D 140   OE1  97.1  82.2  94.6 131.0                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA D 201                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA D 202                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA D 203                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA D 204                  
DBREF  4GOW D    3   146  UNP    P62158   CALM_HUMAN       4    147             
DBREF  4GOW A  522   593  UNP    P56696   KCNQ4_HUMAN    522    593             
SEQRES   1 D  144  GLN LEU THR GLU GLU GLN ILE ALA GLU PHE LYS GLU ALA          
SEQRES   2 D  144  PHE SER LEU PHE ASP LYS ASP GLY ASP GLY THR ILE THR          
SEQRES   3 D  144  THR LYS GLU LEU GLY THR VAL MET ARG SER LEU GLY GLN          
SEQRES   4 D  144  ASN PRO THR GLU ALA GLU LEU GLN ASP MET ILE ASN GLU          
SEQRES   5 D  144  VAL ASP ALA ASP GLY ASN GLY THR ILE ASP PHE PRO GLU          
SEQRES   6 D  144  PHE LEU THR MET MET ALA ARG LYS MET LYS ASP THR ASP          
SEQRES   7 D  144  SER GLU GLU GLU ILE ARG GLU ALA PHE ARG VAL PHE ASP          
SEQRES   8 D  144  LYS ASP GLY ASN GLY TYR ILE SER ALA ALA GLU LEU ARG          
SEQRES   9 D  144  HIS VAL MET THR ASN LEU GLY GLU LYS LEU THR ASP GLU          
SEQRES  10 D  144  GLU VAL ASP GLU MET ILE ARG GLU ALA ASP ILE ASP GLY          
SEQRES  11 D  144  ASP GLY GLN VAL ASN TYR GLU GLU PHE VAL GLN MET MET          
SEQRES  12 D  144  THR                                                          
SEQRES   1 A   72  THR VAL ASP ASP ILE MET PRO ALA VAL LYS THR VAL ILE          
SEQRES   2 A   72  ARG SER ILE ARG ILE LEU LYS PHE LEU VAL ALA LYS ARG          
SEQRES   3 A   72  LYS PHE LYS GLU THR LEU ARG PRO TYR ASP VAL LYS ASP          
SEQRES   4 A   72  VAL ILE GLU GLN TYR SER ALA GLY HIS LEU ASP MET LEU          
SEQRES   5 A   72  GLY ARG ILE LYS SER LEU GLN THR ARG VAL ASP GLN ILE          
SEQRES   6 A   72  VAL GLY ARG GLY PRO GLY ASP                                  
HET     CA  D 201       1                                                       
HET     CA  D 202       1                                                       
HET     CA  D 203       1                                                       
HET     CA  D 204       1                                                       
HETNAM      CA CALCIUM ION                                                      
FORMUL   3   CA    4(CA 2+)                                                     
FORMUL   7  HOH   *18(H2 O)                                                     
HELIX    1   1 THR D    5  ASP D   20  1                                  16    
HELIX    2   2 THR D   28  LEU D   39  1                                  12    
HELIX    3   3 THR D   44  ASP D   56  1                                  13    
HELIX    4   4 PHE D   65  LYS D   75  1                                  11    
HELIX    5   5 GLU D   82  ASP D   93  1                                  12    
HELIX    6   6 SER D  101  GLY D  113  1                                  13    
HELIX    7   7 THR D  117  ASP D  129  1                                  13    
HELIX    8   8 ASN D  137  THR D  146  1                                  10    
HELIX    9   9 ASP A  525  PHE A  549  1                                  25    
SHEET    1   A 2 THR D  26  ILE D  27  0                                        
SHEET    2   A 2 ILE D  63  ASP D  64 -1  O  ILE D  63   N  ILE D  27           
LINK         OD1 ASN D  60                CA    CA D 202     1555   1555  3.18  
LINK         OD1 ASP D 131                CA    CA D 204     1555   1555  3.14  
LINK         OD2 ASP D 131                CA    CA D 204     1555   1555  3.19  
LINK         OD2 ASP D 133                CA    CA D 204     1555   1555  3.13  
LINK         OD1 ASP D 133                CA    CA D 204     1555   1555  3.20  
LINK         OE1 GLU D 140                CA    CA D 204     1555   1555  3.18  
SITE     1 AC1  5 ASP D  22  ASP D  24  THR D  26  THR D  28                    
SITE     2 AC1  5 GLU D  31                                                     
SITE     1 AC2  6 ASP D  56  ASP D  58  ASN D  60  THR D  62                    
SITE     2 AC2  6 ASP D  64  GLU D  67                                          
SITE     1 AC3  4 ASP D  95  ASN D  97  GLU D 104  GLN D 135                    
SITE     1 AC4  5 ASP D 131  ASP D 133  GLN D 135  ASN D 137                    
SITE     2 AC4  5 GLU D 140                                                     
CRYST1  104.075  104.075  113.729  90.00  90.00 120.00 P 65 2 2     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      0.009608  0.005547  0.000000        0.00000                         
SCALE2      0.000000  0.011095  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008793        0.00000