HEADER    PLANT PROTEIN                           05-OCT-01   1K48              
TITLE     REFINED STRUCTURE AND DISULFIDE PAIRING OF THE KALATA B1 PEPTIDE      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: KALATA B1;                                                 
COMPND   3 CHAIN: A                                                             
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: OLDENLANDIA AFFINIS;                            
SOURCE   3 ORGANISM_TAXID: 60225;                                               
SOURCE   4 STRAIN: DC;                                                          
SOURCE   5 OTHER_DETAILS: EXTRACTED FROM AFRICAN PLANT KALATA-KALATA            
KEYWDS    CYCLIC PEPTIDE, CYCLOTIDE, DISULFIDE PAIRING, UTEROTONIC, PLANT       
KEYWDS   2 PROTEIN                                                              
EXPDTA    SOLUTION NMR                                                          
MDLTYP    MINIMIZED AVERAGE                                                     
AUTHOR    L.SKJELDAL,L.GRAN,K.SLETTEN,B.F.VOLKMAN                               
REVDAT   4   20-NOV-24 1K48    1       REMARK                                   
REVDAT   3   23-FEB-22 1K48    1       REMARK                                   
REVDAT   2   24-FEB-09 1K48    1       VERSN                                    
REVDAT   1   10-APR-02 1K48    0                                                
JRNL        AUTH   L.SKJELDAL,L.GRAN,K.SLETTEN,B.F.VOLKMAN                      
JRNL        TITL   REFINED STRUCTURE AND METAL BINDING SITE OF THE KALATA B1    
JRNL        TITL 2 PEPTIDE.                                                     
JRNL        REF    ARCH.BIOCHEM.BIOPHYS.         V. 399   142 2002              
JRNL        REFN                   ISSN 0003-9861                               
JRNL        PMID   11888199                                                     
JRNL        DOI    10.1006/ABBI.2002.2769                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  TITL   ELUCIDATION OF THE PRIMARY AND THREE-DIMENSIONAL STRUCTURE   
REMARK   1  TITL 2 OF THE UTEROTONIC POLYPEPTIDE KALATA B1                      
REMARK   1  REF    BIOCHEMISTRY                  V.  34  4147 1995              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : DYANA 1.5                                            
REMARK   3   AUTHORS     : P. GUENTERT                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: STRUCTURES ARE BASED ON A TOTAL OF 333    
REMARK   3  DISTANCE CONSTRAINTS. THIS INCLUDES 6 UPPER AND 6 LOWER LIMITS      
REMARK   3  DEFINING 3 DISULFIDE BONDS, AS WELL AS 3 UPPER AND 3 LOWER          
REMARK   3  LIMITS DEFINING A PEPTIDE BOND CYCLIZING THE PEPTIDE BACKBONE.      
REMARK   3  RESIDUE NUMBERING FOLLOWS THE ORIGINAL DESCRIPTION OF CITATION 1,   
REMARK   3  EXCEPT THAT FOR THE PURPOSES OF STRUCTURE CALCULATIONS, THE N-      
REMARK   3  TERMINAL RESIDUE WAS TAKEN AS ASN8. THEREFORE, RESIDUES 30-36 IN    
REMARK   3  THIS DEPOSITION CORRESPOND TO RESIDUES 1-7 IN CITATION 1 AND        
REMARK   3  RELATED PDB ENTRY 1KAL. STRUCTURES WERE REFINED IN THE ABSENCE      
REMARK   3  OF ANY ARTIFICIAL CONSTRAINTS DEFINING DISULFIDE BONDS UNTIL ALL    
REMARK   3  NOES HAD BEEN ASSIGNED AND LOW TARGET FUNCTIONS WERE ACHIEVED       
REMARK   3  (TF=0.6). 15 ADDITIONAL CALCULATIONS WERE PERFORMED WITH THESE      
REMARK   3  INPUT DATA AND THE INCLUSION OF CONSTRAINTS DEFINING ALL            
REMARK   3  POSSIBLE DISULFIDE PAIRING COMBINATIONS. THE STRUCTURES             
REMARK   3  CONTAINING DISULFIDES BETWEEN [5(34)-13], [17-29] AND [22-27]       
REMARK   3  DISPLAYED THE LOWEST TARGET FUNCTION (0.74, SECOND LOWEST WAS       
REMARK   3  1.54). ON THE BASIS OF THIS RESULT AND ANALYSIS OF NOES OBSERVED    
REMARK   3  BETWEEN CYS SIDECHAIN PROTONS, THIS DISULFIDE BONDING               
REMARK   3  ARRANGEMENT WAS ASSUMED TO BE CORRECT AND SERVED AS THE BASIS       
REMARK   3  FOR THIS DEPOSITION.                                                
REMARK   4                                                                      
REMARK   4 1K48 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-OCT-01.                  
REMARK 100 THE DEPOSITION ID IS D_1000014540.                                   
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 298.00                             
REMARK 210  PH                             : 3.00                               
REMARK 210  IONIC STRENGTH                 : 0                                  
REMARK 210  PRESSURE                       : AMBIENT                            
REMARK 210  SAMPLE CONTENTS                : 5 MM KALATA B1, 10% D2O            
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : 2D NOESY                           
REMARK 210  SPECTROMETER FIELD STRENGTH    : 750 MHZ                            
REMARK 210  SPECTROMETER MODEL             : DMX                                
REMARK 210  SPECTROMETER MANUFACTURER      : BRUKER                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : XWINNMR 2.6, XEASY 1.3.11          
REMARK 210   METHOD USED                   : TORSION ANGLE DYNAMICS             
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : NULL                               
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 1                                  
REMARK 210 CONFORMERS, SELECTION CRITERIA  : NULL                               
REMARK 210                                                                      
REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL                
REMARK 210                                                                      
REMARK 210 REMARK: STRUCTURE WAS DETERMINED USING NOES FROM A SINGLE 100 MS     
REMARK 210  MIXING TIME NOESY EXPERIMENT                                        
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   N    ASN A     8     C    ARG A    36              1.38            
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    CYS A  17       67.60   -153.79                                   
REMARK 500    ASN A  23       -7.96     82.83                                   
REMARK 500    CYS A  29      114.11    -39.32                                   
REMARK 500    TRP A  31      137.04     62.26                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1KAL   RELATED DB: PDB                                   
REMARK 900 ELUCIDATION OF THE PRIMARY AND THREE-DIMENSIONAL STRUCTURE OF THE    
REMARK 900 UTEROTONIC POLYPEPTIDE KALATA B1                                     
REMARK 900 RELATED ID: 1JJZ   RELATED DB: PDB                                   
REMARK 900 REFINED STRUCTURE AND DISULFIDE PAIRING OF THE KALATA B1 PEPTIDE     
DBREF  1K48 A    8    15  UNP    P56254   KAB1_OLDAF      22     29             
DBREF  1K48 A   16    36  UNP    P56254   KAB1_OLDAF       1     21             
SEQRES   1 A   29  ASN GLY LEU PRO VAL CYS GLY GLU THR CYS VAL GLY GLY          
SEQRES   2 A   29  THR CYS ASN THR PRO GLY CYS THR CYS SER TRP PRO VAL          
SEQRES   3 A   29  CYS THR ARG                                                  
SSBOND   1 CYS A   13    CYS A   34                          1555   1555  1.98  
SSBOND   2 CYS A   17    CYS A   29                          1555   1555  2.11  
SSBOND   3 CYS A   22    CYS A   27                          1555   1555  2.06  
CISPEP   1 TRP A   31    PRO A   32          0        -0.04                     
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