HEADER    TOXIN                                   12-DEC-00   1HP9              
TITLE     KAPPA-HEFUTOXINS: A NOVEL CLASS OF POTASSIUM CHANNEL TOXINS FROM      
TITLE    2 SCORPION VENOM                                                       
CAVEAT     1HP9    CHIRALITY ERROR AT THE CD CENTER OF ARG A 21.                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: KAPPA-HEFUTOXIN 1;                                         
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 OTHER_DETAILS: THIS SEQUENCE OCCURS NATURALLY IN THE SCORPION,       
SOURCE   4 HETEROMETRUS FULVIPES                                                
KEYWDS    SCORPION TOXIN, GATING MODIFIER, VOLTAGE-GATED POTASSIUM CHANNEL,     
KEYWDS   2 TOXIN                                                                
EXPDTA    SOLUTION NMR                                                          
MDLTYP    MINIMIZED AVERAGE                                                     
AUTHOR    K.N.SRINIVASAN,V.SIVARAJA,I.HUYS,T.SASAKI,B.CHENG,T.K.S.KUMAR,K.SATO, 
AUTHOR   2 J.TYTGAT,C.YU,C.S.BRIAN CHIA,S.RANGANATHAN,J.H.BOWIE,R.M.KINI,       
AUTHOR   3 P.GOPALAKRISHNAKONE                                                  
REVDAT   5   23-OCT-24 1HP9    1       REMARK                                   
REVDAT   4   23-FEB-22 1HP9    1       REMARK                                   
REVDAT   3   24-FEB-09 1HP9    1       VERSN                                    
REVDAT   2   01-APR-03 1HP9    1       JRNL                                     
REVDAT   1   28-AUG-02 1HP9    0                                                
JRNL        AUTH   K.N.SRINIVASAN,V.SIVARAJA,I.HUYS,T.SASAKI,B.CHENG,T.K.KUMAR, 
JRNL        AUTH 2 K.SATO,J.TYTGAT,C.YU,B.C.SAN,S.RANGANATHAN,H.J.BOWIE,        
JRNL        AUTH 3 R.M.KINI,P.GOPALAKRISHNAKONE                                 
JRNL        TITL   KAPPA-HEFUTOXIN1, A NOVEL TOXIN FROM THE SCORPION            
JRNL        TITL 2 HETEROMETRUS FULVIPES WITH UNIQUE STRUCTURE AND FUNCTION.    
JRNL        TITL 3 IMPORTANCE OF THE FUNCTIONAL DIAD IN POTASSIUM CHANNEL       
JRNL        TITL 4 SELECTIVITY.                                                 
JRNL        REF    J.BIOL.CHEM.                  V. 277 30040 2002              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   12034709                                                     
JRNL        DOI    10.1074/JBC.M111258200                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : VNMR 5.3                                             
REMARK   3   AUTHORS     : NULL                                                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1HP9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 18-DEC-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000012499.                                   
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 310                                
REMARK 210  PH                             : 3.5                                
REMARK 210  IONIC STRENGTH                 : 10                                 
REMARK 210  PRESSURE                       : AMBIENT                            
REMARK 210  SAMPLE CONTENTS                : 18.59MG OF HEFUTOXIN1 WAS          
REMARK 210                                   DISSOLVED IN 0.70ML OF WATER /     
REMARK 210                                   D2O (9:1 BY VOLUME) CONTAINING     
REMARK 210                                   50MM OF PHOSPHATE BUFFER           
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : DQF-COSY                           
REMARK 210  SPECTROMETER FIELD STRENGTH    : 600 MHZ                            
REMARK 210  SPECTROMETER MODEL             : UNITY                              
REMARK 210  SPECTROMETER MANUFACTURER      : VARIAN                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : NULL                               
REMARK 210   METHOD USED                   : MOLECULAR DYNAMICS/SIMULATED       
REMARK 210                                   ANNEALING                          
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : 20                                 
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 1                                  
REMARK 210 CONFORMERS, SELECTION CRITERIA  : NULL                               
REMARK 210                                                                      
REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1                   
REMARK 210                                                                      
REMARK 210 REMARK: THIS STRUCTURE WAS DETERMINED BY 2D NMR                      
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: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    HIS A   2   CA  -  CB  -  CG  ANGL. DEV. = -13.3 DEGREES          
REMARK 500    ARG A  10   CG  -  CD  -  NE  ANGL. DEV. = -13.7 DEGREES          
REMARK 500    ARG A  10   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.4 DEGREES          
REMARK 500    ARG A  21   CG  -  CD  -  NE  ANGL. DEV. =  21.2 DEGREES          
REMARK 500    ARG A  21   CD  -  NE  -  CZ  ANGL. DEV. =  -9.3 DEGREES          
REMARK 500    ARG A  21   NE  -  CZ  -  NH1 ANGL. DEV. =  -8.1 DEGREES          
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    HIS A   2       89.03     73.34                                   
REMARK 500    ARG A   6      -98.67    -94.84                                   
REMARK 500    GLU A  11      -71.49    -70.05                                   
REMARK 500    ARG A  21      -75.23    -90.38                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 GLY A    1     HIS A    2                  125.44                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    ARG A  21         0.34    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  1HP9 A    1    22  UNP    P82850   TX1_HETFU        1     22             
SEQRES   1 A   22  GLY HIS ALA CYS TYR ARG ASN CYS TRP ARG GLU GLY ASN          
SEQRES   2 A   22  ASP GLU GLU THR CYS LYS GLU ARG CYS                          
HELIX    1   1 ARG A    6  ASN A   13  1                                   8    
HELIX    2   2 GLU A   16  CYS A   22  1                                   7    
SSBOND   1 CYS A    4    CYS A   22                          1555   1555  2.00  
SSBOND   2 CYS A    8    CYS A   18                          1555   1555  2.04  
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