HEADER    TOXIN                                   24-FEB-14   2MLD              
TITLE     SOLUTION STRUCTURE OF BMKTX-D19K/K6D                                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: POTASSIUM CHANNEL TOXIN ALPHA-KTX 3.6;                     
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 23-59;                                        
COMPND   5 SYNONYM: BMKTX, KALIOTOXIN;                                          
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MESOBUTHUS MARTENSII;                           
SOURCE   3 ORGANISM_COMMON: MANCHURIAN SCORPION;                                
SOURCE   4 ORGANISM_TAXID: 34649;                                               
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_VECTOR: PGEX-6P-1                                  
KEYWDS    TOXIN                                                                 
EXPDTA    SOLUTION NMR                                                          
NUMMDL    20                                                                    
AUTHOR    J.HONG,D.LIN,Z.CHEN,Y.WU                                              
REVDAT   2   09-OCT-24 2MLD    1       REMARK SEQADV                            
REVDAT   1   25-FEB-15 2MLD    0                                                
JRNL        AUTH   J.HONG,D.LIN,Z.CHEN,Y.WU                                     
JRNL        TITL   SOLUTION STRUCTURE OF BMKTX-D19K                             
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : ARIA, CNS                                            
REMARK   3   AUTHORS     : LINGE, O'DONOGHUE AND NILGES (ARIA),                 
REMARK   3  BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-KUNSTLEVE,JIANG,KUSZEWSKI,   
REMARK   3  NILGES, PANNU,READ,RICE,SIMONSON,WARREN (CNS)                       
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2MLD COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 27-FEB-14.                  
REMARK 100 THE DEPOSITION ID IS D_1000103754.                                   
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 298                                
REMARK 210  PH                             : 4.5                                
REMARK 210  IONIC STRENGTH                 : 0.025                              
REMARK 210  PRESSURE                       : AMBIENT                            
REMARK 210  SAMPLE CONTENTS                : 2 MM ENTITY-1, 10 % [U-99% 2H]     
REMARK 210                                   D2O-2, 90 % H2O-3, 25 MM           
REMARK 210                                   POTASSIUM PHOSPHATE-4, 90% H2O/    
REMARK 210                                   10% D2O                            
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : 2D 1H-1H TOCSY; 2D 1H-1H COSY;     
REMARK 210                                   2D 1H-1H NOESY                     
REMARK 210  SPECTROMETER FIELD STRENGTH    : 600 MHZ                            
REMARK 210  SPECTROMETER MODEL             : AMX                                
REMARK 210  SPECTROMETER MANUFACTURER      : BRUKER                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : CNS, SPARKY, PROCHECKNMR           
REMARK 210   METHOD USED                   : DGSA-DISTANCE GEOMETRY SIMULATED   
REMARK 210                                   ANNEALING                          
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : 200                                
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 20                                 
REMARK 210 CONFORMERS, SELECTION CRITERIA  : STRUCTURES WITH THE LOWEST         
REMARK 210                                   ENERGY                             
REMARK 210                                                                      
REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1                   
REMARK 210                                                                      
REMARK 210 REMARK: NULL                                                         
REMARK 215                                                                      
REMARK 215 NMR STUDY                                                            
REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION           
REMARK 215 NMR DATA.  PROTEIN DATA BANK CONVENTIONS REQUIRE THAT                
REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON              
REMARK 215 THESE RECORDS ARE MEANINGLESS.                                       
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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  1 ASN A   4       70.48   -101.32                                   
REMARK 500  1 PHE A  24     -153.15   -112.48                                   
REMARK 500  1 ILE A  28     -112.52   -122.89                                   
REMARK 500  1 ASN A  29       46.73    -92.22                                   
REMARK 500  2 ARG A  23      -60.69    -93.21                                   
REMARK 500  2 PRO A  36     -157.98    -84.40                                   
REMARK 500  3 ARG A  23      -63.58   -103.80                                   
REMARK 500  4 ARG A  23      -74.09    -91.76                                   
REMARK 500  4 ASN A  29       53.10    -67.20                                   
REMARK 500  4 PRO A  36     -159.83    -79.90                                   
REMARK 500  5 ASN A  29       65.88    -58.48                                   
REMARK 500  5 PRO A  36     -156.76    -83.92                                   
REMARK 500  6 ARG A  23      -61.44    -96.37                                   
REMARK 500  6 PHE A  24     -158.11   -108.06                                   
REMARK 500  6 PRO A  36     -154.09    -84.03                                   
REMARK 500  7 ARG A  23      -62.48    -93.61                                   
REMARK 500  7 ASN A  29       56.23    -64.67                                   
REMARK 500  7 PRO A  36     -163.24    -79.72                                   
REMARK 500  8 PHE A  24     -157.29   -110.19                                   
REMARK 500  8 PRO A  36     -159.70    -81.21                                   
REMARK 500  9 ARG A  23      -66.34    -97.75                                   
REMARK 500 10 ARG A  23      -63.59    -91.67                                   
REMARK 500 10 PRO A  36     -158.44    -80.00                                   
REMARK 500 11 ARG A  23      -71.73    -83.61                                   
REMARK 500 11 ASN A  29       63.85    -59.52                                   
REMARK 500 12 PHE A  24     -161.44   -105.88                                   
REMARK 500 13 ASN A   4      -87.20    -87.68                                   
REMARK 500 13 VAL A   5     -172.28     50.78                                   
REMARK 500 13 ASN A  29       44.87    -65.19                                   
REMARK 500 13 PRO A  36     -159.27    -85.64                                   
REMARK 500 14 ILE A  28     -122.43   -120.07                                   
REMARK 500 14 ASN A  29       49.55    -91.37                                   
REMARK 500 14 PRO A  36     -157.90    -82.07                                   
REMARK 500 15 ARG A  23      -75.50    -99.93                                   
REMARK 500 15 ILE A  28     -119.24   -118.36                                   
REMARK 500 15 ASN A  29       45.77    -90.77                                   
REMARK 500 15 PRO A  36     -159.88    -78.51                                   
REMARK 500 16 PHE A  24     -153.83   -105.02                                   
REMARK 500 16 ILE A  28     -115.15   -105.41                                   
REMARK 500 16 ASN A  29       43.23    -90.99                                   
REMARK 500 17 PHE A  24     -159.26   -107.25                                   
REMARK 500 17 ILE A  28      -92.83    -95.78                                   
REMARK 500 17 ASN A  29       45.06    -93.36                                   
REMARK 500 18 ARG A  23      -61.43    -94.29                                   
REMARK 500 18 ILE A  28     -110.29    -90.06                                   
REMARK 500 18 ASN A  29       47.11    -92.53                                   
REMARK 500 18 PRO A  36     -159.64    -82.51                                   
REMARK 500 19 HIS A   9      158.15    178.41                                   
REMARK 500 19 ARG A  23      -79.10    -92.77                                   
REMARK 500 20 PHE A  24     -159.21   -105.50                                   
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS      51 RAMACHANDRAN OUTLIERS.                        
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 19813   RELATED DB: BMRB                                 
DBREF  2MLD A    1    37  UNP    Q9NII7   KAX36_MESMA     23     59             
SEQADV 2MLD ASP A    6  UNP  Q9NII7    LYS    28 ENGINEERED MUTATION            
SEQADV 2MLD LYS A   19  UNP  Q9NII7    ASP    41 ENGINEERED MUTATION            
SEQRES   1 A   37  VAL GLY ILE ASN VAL ASP CYS LYS HIS SER GLY GLN CYS          
SEQRES   2 A   37  LEU LYS PRO CYS LYS LYS ALA GLY MET ARG PHE GLY LYS          
SEQRES   3 A   37  CYS ILE ASN GLY LYS CYS ASP CYS THR PRO LYS                  
HELIX    1   1 HIS A    9  GLN A   12  5                                   4    
HELIX    2   2 CYS A   13  GLY A   21  1                                   9    
SHEET    1   A 2 LYS A  26  CYS A  27  0                                        
SHEET    2   A 2 CYS A  32  ASP A  33 -1  O  ASP A  33   N  LYS A  26           
SSBOND   1 CYS A    7    CYS A   27                          1555   1555  2.03  
SSBOND   2 CYS A   13    CYS A   32                          1555   1555  2.03  
SSBOND   3 CYS A   17    CYS A   34                          1555   1555  2.02  
CRYST1    1.000    1.000    1.000  90.00  90.00  90.00 P 1           1          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      1.000000  0.000000  0.000000        0.00000                         
SCALE2      0.000000  1.000000  0.000000        0.00000                         
SCALE3      0.000000  0.000000  1.000000        0.00000                         
MODEL        1