HEADER    TRANSPORT PROTEIN/IMMUNE SYSTEM         16-MAR-21   7M2J              
TITLE     STRUCTURAL SNAPSHOTS OF INTERMEDIATES IN THE GATING OF A K+ CHANNEL   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: MONOCLONAL ANTIBODY (IGG) AGAINST KCSA, FAB HEAVY CHAIN;   
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: MONOCLONAL ANTIBODY (IGG) AGAINST KCSA, FAB LIGHT CHAIN;   
COMPND   7 CHAIN: B;                                                            
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MOL_ID: 3;                                                           
COMPND  10 MOLECULE: PH-GATED POTASSIUM CHANNEL KCSA;                           
COMPND  11 CHAIN: C;                                                            
COMPND  12 SYNONYM: STREPTOMYCES LIVIDANS K+ CHANNEL,SKC1;                      
COMPND  13 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE   3 ORGANISM_COMMON: MOUSE;                                              
SOURCE   4 ORGANISM_TAXID: 10090;                                               
SOURCE   5 EXPRESSION_SYSTEM: HOMO SAPIENS;                                     
SOURCE   6 EXPRESSION_SYSTEM_COMMON: HUMAN;                                     
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 9606;                                       
SOURCE   8 MOL_ID: 2;                                                           
SOURCE   9 ORGANISM_SCIENTIFIC: MUS MUSCULUS;                                   
SOURCE  10 ORGANISM_COMMON: MOUSE;                                              
SOURCE  11 ORGANISM_TAXID: 10090;                                               
SOURCE  12 EXPRESSION_SYSTEM: HOMO SAPIENS;                                     
SOURCE  13 EXPRESSION_SYSTEM_COMMON: HUMAN;                                     
SOURCE  14 EXPRESSION_SYSTEM_TAXID: 9606;                                       
SOURCE  15 MOL_ID: 3;                                                           
SOURCE  16 ORGANISM_SCIENTIFIC: STREPTOMYCES LIVIDANS;                          
SOURCE  17 ORGANISM_TAXID: 1916;                                                
SOURCE  18 GENE: KCSA, SKC1;                                                    
SOURCE  19 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  20 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    ION CHANNEL, K+ CHANNEL, PH GATED ION CHANNEL, TRANSPORT PROTEIN-     
KEYWDS   2 IMMUNE SYSTEM COMPLEX                                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    R.REDDI,F.I.VALIYAVEETIL                                              
REVDAT   4   13-NOV-24 7M2J    1       REMARK                                   
REVDAT   3   18-OCT-23 7M2J    1       REMARK                                   
REVDAT   2   10-NOV-21 7M2J    1       JRNL                                     
REVDAT   1   27-OCT-21 7M2J    0                                                
JRNL        AUTH   R.REDDI,K.MATULEF,E.RIEDERER,P.MOENNE-LOCCOZ,                
JRNL        AUTH 2 F.I.VALIYAVEETIL                                             
JRNL        TITL   STRUCTURES OF GATING INTERMEDIATES IN A K + CHANNELL.        
JRNL        REF    J.MOL.BIOL.                   V. 433 67296 2021              
JRNL        REFN                   ESSN 1089-8638                               
JRNL        PMID   34627789                                                     
JRNL        DOI    10.1016/J.JMB.2021.167296                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.15.2_3472                                   
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) : 3.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 42.63                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 88.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 9570                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.253                           
REMARK   3   R VALUE            (WORKING SET) : 0.247                           
REMARK   3   FREE R VALUE                     : 0.305                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.170                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 973                             
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 42.6300 -  6.1172    0.99     1422   155  0.2429 0.3032        
REMARK   3     2  6.1172 -  4.8576    0.98     1354   153  0.2383 0.2835        
REMARK   3     3  4.8576 -  4.2442    0.96     1323   150  0.1873 0.2527        
REMARK   3     4  4.2442 -  3.8565    0.92     1287   150  0.2377 0.3090        
REMARK   3     5  3.8565 -  3.5802    0.85     1175   132  0.2793 0.3452        
REMARK   3     6  3.5802 -  3.3692    0.79     1082   117  0.3158 0.3468        
REMARK   3     7  3.3692 -  3.2010    0.70      954   116  0.3769 0.4340        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.560            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 39.200           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 91.50                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
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      :   NULL           NULL                                  
REMARK   3   ANGLE     :   NULL           NULL                                  
REMARK   3   CHIRALITY :   NULL           NULL                                  
REMARK   3   PLANARITY :   NULL           NULL                                  
REMARK   3   DIHEDRAL  :   NULL           NULL                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
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 7M2J COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-MAR-21.                  
REMARK 100 THE DEPOSITION ID IS D_1000255435.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 17-AUG-18                          
REMARK 200  TEMPERATURE           (KELVIN) : 93                                 
REMARK 200  PH                             : 6.25-6.75                          
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ALS                                
REMARK 200  BEAMLINE                       : 4.2.2                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1                                  
REMARK 200  MONOCHROMATOR                  : SI(111)                            
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315R                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : AIMLESS                            
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 10837                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 47.660                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY                : 7.400                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 8.8000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.51                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: PDB ENTRY 5VK6                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 57.21                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.87                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 33% PEG400, 100 MM MES, PH 6.5, 100 MM   
REMARK 280  CALCIUM CHLORIDE, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K   
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 4                              
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,X,Z                                                  
REMARK 290       4555   Y,-X,Z                                                  
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -Y+1/2,X+1/2,Z+1/2                                      
REMARK 290       8555   Y+1/2,-X+1/2,Z+1/2                                      
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        0.00000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       67.40650            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       67.40650            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       36.07600            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       67.40650            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       67.40650            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       36.07600            
REMARK 290   SMTRY1   7  0.000000 -1.000000  0.000000       67.40650            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000       67.40650            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       36.07600            
REMARK 290   SMTRY1   8  0.000000  1.000000  0.000000       67.40650            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000       67.40650            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       36.07600            
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: DODECAMERIC                       
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 350 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
REMARK 350   BIOMT1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
REMARK 350   BIOMT1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT2   3  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C                               
REMARK 350   BIOMT1   4  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT2   4 -1.000000  0.000000  0.000000        0.00000            
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 K      K C 201  LIES ON A SPECIAL POSITION.                          
REMARK 375 K      K C 202  LIES ON A SPECIAL POSITION.                          
REMARK 375 K      K C 203  LIES ON A SPECIAL POSITION.                          
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     LYS A  23    CG   CD   CE   NZ                                   
REMARK 470     LYS A  63    CG   CD   CE   NZ                                   
REMARK 470     GLN A  65    CG   CD   OE1  NE2                                  
REMARK 470     LYS A  74    CG   CD   CE   NZ                                   
REMARK 470     GLU A  89    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 120    CG   CD   CE   NZ                                   
REMARK 470     GLN A 136    CG   CD   OE1  NE2                                  
REMARK 470     THR A 137    OG1  CG2                                            
REMARK 470     ASN A 138    CG   OD1  ND2                                       
REMARK 470     SER A 165    OG                                                  
REMARK 470     SER A 166    OG                                                  
REMARK 470     SER A 177    OG                                                  
REMARK 470     ASP A 178    CG   OD1  OD2                                       
REMARK 470     ASP A 219    CG   OD1  OD2                                       
REMARK 470     ASN B 212    CG   OD1  ND2                                       
REMARK 470     TRP C  26    CG   CD1  CD2  NE1  CE2  CE3  CZ2                   
REMARK 470     TRP C  26    CZ3  CH2                                            
REMARK 470     ARG C  27    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     VAL C 115    CG1  CG2                                            
REMARK 470     GLN C 119    CG   CD   OE1  NE2                                  
REMARK 470     GLN C 121    CG   CD   OE1  NE2                                  
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    ARG A 100       20.02    -77.05                                   
REMARK 500    ASN A 138     -156.63   -100.03                                   
REMARK 500    ASP B  32       39.93    -81.73                                   
REMARK 500    LEU B  47      -64.46    -98.78                                   
REMARK 500    ALA B  51      -57.62     64.46                                   
REMARK 500    SER B  77      101.31     60.00                                   
REMARK 500    ASN B 138       74.22     59.78                                   
REMARK 500    ASN B 190      -73.16   -112.01                                   
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                               K C 201   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 THR C  75   O                                                      
REMARK 620 2 THR C  75   OG1  55.4                                              
REMARK 620 3 THR C  75   O     0.0  55.4                                        
REMARK 620 4 THR C  75   OG1  55.4   0.0  55.4                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K C 203   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLY C  77   O                                                      
REMARK 620 2 GLY C  77   O     0.0                                              
REMARK 620 N                    1                                               
DBREF  7M2J A    1   219  PDB    7M2J     7M2J             1    219             
DBREF  7M2J B    1   212  PDB    7M2J     7M2J             1    212             
DBREF  7M2J C   26   116  UNP    P0A334   KCSA_STRLI      26    116             
SEQADV 7M2J CYS C   28  UNP  P0A334    ALA    28 CONFLICT                       
SEQADV 7M2J GLN C  117  UNP  P0A334              EXPRESSION TAG                 
SEQADV 7M2J CYS C  118  UNP  P0A334              EXPRESSION TAG                 
SEQADV 7M2J GLN C  119  UNP  P0A334              EXPRESSION TAG                 
SEQADV 7M2J GLN C  120  UNP  P0A334              EXPRESSION TAG                 
SEQADV 7M2J GLN C  121  UNP  P0A334              EXPRESSION TAG                 
SEQRES   1 A  219  GLN VAL GLN LEU GLN GLN PRO GLY ALA GLU LEU VAL LYS          
SEQRES   2 A  219  PRO GLY ALA SER VAL LYS LEU SER CYS LYS ALA SER GLY          
SEQRES   3 A  219  TYR THR PHE THR SER ASP TRP ILE HIS TRP VAL LYS GLN          
SEQRES   4 A  219  ARG PRO GLY HIS GLY LEU GLU TRP ILE GLY GLU ILE ILE          
SEQRES   5 A  219  PRO SER TYR GLY ARG ALA ASN TYR ASN GLU LYS ILE GLN          
SEQRES   6 A  219  LYS LYS ALA THR LEU THR ALA ASP LYS SER SER SER THR          
SEQRES   7 A  219  ALA PHE MET GLN LEU SER SER LEU THR SER GLU ASP SER          
SEQRES   8 A  219  ALA VAL TYR TYR CYS ALA ARG GLU ARG GLY ASP GLY TYR          
SEQRES   9 A  219  PHE ALA VAL TRP GLY ALA GLY THR THR VAL THR VAL SER          
SEQRES  10 A  219  SER ALA LYS THR THR PRO PRO SER VAL TYR PRO LEU ALA          
SEQRES  11 A  219  PRO GLY SER ALA ALA GLN THR ASN SER MET VAL THR LEU          
SEQRES  12 A  219  GLY CYS LEU VAL LYS GLY TYR PHE PRO GLU PRO VAL THR          
SEQRES  13 A  219  VAL THR TRP ASN SER GLY SER LEU SER SER GLY VAL HIS          
SEQRES  14 A  219  THR PHE PRO ALA VAL LEU GLN SER ASP LEU TYR THR LEU          
SEQRES  15 A  219  SER SER SER VAL THR VAL PRO SER SER SER TRP PRO SER          
SEQRES  16 A  219  GLU THR VAL THR CYS ASN VAL ALA HIS PRO ALA SER SER          
SEQRES  17 A  219  THR LYS VAL ASP LYS LYS ILE VAL PRO ARG ASP                  
SEQRES   1 B  212  ASP ILE LEU LEU THR GLN SER PRO ALA ILE LEU SER VAL          
SEQRES   2 B  212  SER PRO GLY GLU ARG VAL SER PHE SER CYS ARG ALA SER          
SEQRES   3 B  212  GLN SER ILE GLY THR ASP ILE HIS TRP TYR GLN GLN ARG          
SEQRES   4 B  212  THR ASN GLY SER PRO ARG LEU LEU ILE LYS TYR ALA SER          
SEQRES   5 B  212  GLU SER ILE SER GLY ILE PRO SER ARG PHE SER GLY SER          
SEQRES   6 B  212  GLY SER GLY THR ASP PHE THR LEU SER ILE ASN SER VAL          
SEQRES   7 B  212  GLU SER GLU ASP ILE ALA ASN TYR TYR CYS GLN GLN SER          
SEQRES   8 B  212  ASN ARG TRP PRO PHE THR PHE GLY SER GLY THR LYS LEU          
SEQRES   9 B  212  GLU ILE LYS ARG ALA ASP ALA ALA PRO THR VAL SER ILE          
SEQRES  10 B  212  PHE PRO PRO SER SER GLU GLN LEU THR SER GLY GLY ALA          
SEQRES  11 B  212  SER VAL VAL CYS PHE LEU ASN ASN PHE TYR PRO LYS ASP          
SEQRES  12 B  212  ILE ASN VAL LYS TRP LYS ILE ASP GLY SER GLU ARG GLN          
SEQRES  13 B  212  ASN GLY VAL LEU ASN SER TRP THR ASP GLN ASP SER LYS          
SEQRES  14 B  212  ASP SER THR TYR SER MET SER SER THR LEU THR LEU THR          
SEQRES  15 B  212  LYS ASP GLU TYR GLU ARG HIS ASN SER TYR THR CYS GLU          
SEQRES  16 B  212  ALA THR HIS LYS THR SER THR SER PRO ILE VAL LYS SER          
SEQRES  17 B  212  PHE ASN ARG ASN                                              
SEQRES   1 C   96  TRP ARG CYS ALA GLY ALA ALA THR VAL LEU LEU VAL ILE          
SEQRES   2 C   96  VAL LEU LEU ALA GLY SER TYR LEU ALA VAL LEU ALA GLU          
SEQRES   3 C   96  ARG GLY ALA PRO GLY ALA GLN LEU ILE THR TYR PRO ARG          
SEQRES   4 C   96  ALA LEU TRP TRP SER VAL GLU THR ALA THR THR VAL GLY          
SEQRES   5 C   96  TYR GLY ASP LEU TYR PRO VAL THR LEU TRP GLY ARG LEU          
SEQRES   6 C   96  VAL ALA VAL VAL VAL MET VAL ALA GLY ILE THR SER PHE          
SEQRES   7 C   96  GLY LEU VAL THR ALA ALA LEU ALA THR TRP PHE VAL GLY          
SEQRES   8 C   96  GLN CYS GLN GLN GLN                                          
HET      K  C 201       1                                                       
HET      K  C 202       1                                                       
HET      K  C 203       1                                                       
HETNAM       K POTASSIUM ION                                                    
FORMUL   4    K    3(K 1+)                                                      
HELIX    1 AA1 THR A   87  SER A   91  5                                   5    
HELIX    2 AA2 SER A  161  SER A  163  5                                   3    
HELIX    3 AA3 GLU B   79  ILE B   83  5                                   5    
HELIX    4 AA4 SER B  121  THR B  126  1                                   6    
HELIX    5 AA5 LYS B  183  GLU B  187  1                                   5    
HELIX    6 AA6 ARG C   27  ARG C   52  1                                  26    
HELIX    7 AA7 THR C   61  THR C   75  1                                  15    
HELIX    8 AA8 THR C   85  GLN C  121  1                                  37    
SHEET    1 AA1 4 LEU A   4  GLN A   5  0                                        
SHEET    2 AA1 4 SER A  17  ALA A  24 -1  O  LYS A  23   N  GLN A   5           
SHEET    3 AA1 4 THR A  78  SER A  84 -1  O  MET A  81   N  LEU A  20           
SHEET    4 AA1 4 LEU A  70  ASP A  73 -1  N  THR A  71   O  PHE A  80           
SHEET    1 AA2 6 ALA A   9  VAL A  12  0                                        
SHEET    2 AA2 6 THR A 112  VAL A 116  1  O  THR A 115   N  VAL A  12           
SHEET    3 AA2 6 ALA A  92  GLU A  99 -1  N  ALA A  92   O  VAL A 114           
SHEET    4 AA2 6 TRP A  33  GLN A  39 -1  N  VAL A  37   O  TYR A  95           
SHEET    5 AA2 6 GLU A  46  ILE A  51 -1  O  ILE A  51   N  ILE A  34           
SHEET    6 AA2 6 ALA A  58  TYR A  60 -1  O  ASN A  59   N  GLU A  50           
SHEET    1 AA3 4 ALA A   9  VAL A  12  0                                        
SHEET    2 AA3 4 THR A 112  VAL A 116  1  O  THR A 115   N  VAL A  12           
SHEET    3 AA3 4 ALA A  92  GLU A  99 -1  N  ALA A  92   O  VAL A 114           
SHEET    4 AA3 4 VAL A 107  TRP A 108 -1  O  VAL A 107   N  ARG A  98           
SHEET    1 AA4 4 SER A 125  LEU A 129  0                                        
SHEET    2 AA4 4 MET A 140  TYR A 150 -1  O  LEU A 146   N  TYR A 127           
SHEET    3 AA4 4 TYR A 180  PRO A 189 -1  O  VAL A 186   N  LEU A 143           
SHEET    4 AA4 4 VAL A 168  THR A 170 -1  N  HIS A 169   O  SER A 185           
SHEET    1 AA5 4 SER A 125  LEU A 129  0                                        
SHEET    2 AA5 4 MET A 140  TYR A 150 -1  O  LEU A 146   N  TYR A 127           
SHEET    3 AA5 4 TYR A 180  PRO A 189 -1  O  VAL A 186   N  LEU A 143           
SHEET    4 AA5 4 VAL A 174  LEU A 175 -1  N  VAL A 174   O  THR A 181           
SHEET    1 AA6 3 THR A 156  TRP A 159  0                                        
SHEET    2 AA6 3 THR A 199  HIS A 204 -1  O  ASN A 201   N  THR A 158           
SHEET    3 AA6 3 THR A 209  LYS A 214 -1  O  THR A 209   N  HIS A 204           
SHEET    1 AA7 4 THR B   5  SER B   7  0                                        
SHEET    2 AA7 4 VAL B  19  ARG B  24 -1  O  ARG B  24   N  THR B   5           
SHEET    3 AA7 4 ASP B  70  ILE B  75 -1  O  LEU B  73   N  PHE B  21           
SHEET    4 AA7 4 PHE B  62  SER B  67 -1  N  SER B  63   O  SER B  74           
SHEET    1 AA8 6 ILE B  10  VAL B  13  0                                        
SHEET    2 AA8 6 THR B 102  ILE B 106  1  O  GLU B 105   N  LEU B  11           
SHEET    3 AA8 6 ASN B  85  GLN B  90 -1  N  TYR B  86   O  THR B 102           
SHEET    4 AA8 6 ILE B  33  GLN B  38 -1  N  GLN B  38   O  ASN B  85           
SHEET    5 AA8 6 ARG B  45  LYS B  49 -1  O  ARG B  45   N  GLN B  37           
SHEET    6 AA8 6 GLU B  53  SER B  54 -1  O  GLU B  53   N  LYS B  49           
SHEET    1 AA9 4 ILE B  10  VAL B  13  0                                        
SHEET    2 AA9 4 THR B 102  ILE B 106  1  O  GLU B 105   N  LEU B  11           
SHEET    3 AA9 4 ASN B  85  GLN B  90 -1  N  TYR B  86   O  THR B 102           
SHEET    4 AA9 4 THR B  97  PHE B  98 -1  O  THR B  97   N  GLN B  90           
SHEET    1 AB1 4 THR B 114  PHE B 118  0                                        
SHEET    2 AB1 4 GLY B 129  PHE B 139 -1  O  PHE B 135   N  SER B 116           
SHEET    3 AB1 4 TYR B 173  THR B 182 -1  O  LEU B 181   N  ALA B 130           
SHEET    4 AB1 4 VAL B 159  TRP B 163 -1  N  LEU B 160   O  THR B 178           
SHEET    1 AB2 4 SER B 153  ARG B 155  0                                        
SHEET    2 AB2 4 ILE B 144  ILE B 150 -1  N  TRP B 148   O  ARG B 155           
SHEET    3 AB2 4 SER B 191  HIS B 198 -1  O  THR B 193   N  LYS B 149           
SHEET    4 AB2 4 ILE B 205  ASN B 210 -1  O  ILE B 205   N  ALA B 196           
SSBOND   1 CYS A   22    CYS A   96                          1555   1555  2.03  
SSBOND   2 CYS B   23    CYS B   88                          1555   1555  2.04  
SSBOND   3 CYS B  134    CYS B  194                          1555   1555  2.03  
SSBOND   4 CYS C   28    CYS C  118                          1555   4555  2.03  
LINK         O   THR C  75                 K     K C 201     1555   1555  2.99  
LINK         OG1 THR C  75                 K     K C 201     1555   1555  3.24  
LINK         O   THR C  75                 K     K C 201     1555   2555  2.99  
LINK         OG1 THR C  75                 K     K C 201     1555   2555  3.24  
LINK         O   GLY C  77                 K     K C 203     1555   1555  2.82  
LINK         O   GLY C  77                 K     K C 203     1555   2555  2.82  
CISPEP   1 PHE A  151    PRO A  152          0        -5.33                     
CISPEP   2 GLU A  153    PRO A  154          0        -3.30                     
CISPEP   3 TRP A  193    PRO A  194          0        -0.90                     
CISPEP   4 SER B    7    PRO B    8          0         0.39                     
CISPEP   5 TRP B   94    PRO B   95          0         0.89                     
CISPEP   6 TYR B  140    PRO B  141          0         0.62                     
CRYST1  134.813  134.813   72.152  90.00  90.00  90.00 I 4           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      0.007418  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.007418  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013860        0.00000