HEADER    PLANT PROTEIN                           19-OCT-06   2IT7              
TITLE     SOLUTION STRUCTURE OF THE SQUASH TRYPSIN INHIBITOR EETI-II            
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRYPSIN INHIBITOR 2;                                       
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: TRYPSIN INHIBITOR II, EETI-II;                              
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 OTHER_DETAILS: THIS SEQUENCE OCCURS NATURALLY IN ECBALLIUM ELATERIUM 
KEYWDS    PLANT PROTEIN, KNOTTIN, CYSTINE-KNOT, 3-10 HELIX, TRIPLE-STRANDED     
KEYWDS   2 ANTI-PARALLEL BETA-SHEET                                             
EXPDTA    SOLUTION NMR                                                          
NUMMDL    30                                                                    
AUTHOR    L.CHICHE,A.HEITZ,D.LE-NGUYEN                                          
REVDAT   4   30-OCT-24 2IT7    1       REMARK                                   
REVDAT   3   09-MAR-22 2IT7    1       REMARK SHEET                             
REVDAT   2   24-FEB-09 2IT7    1       VERSN                                    
REVDAT   1   02-OCT-07 2IT7    0                                                
JRNL        AUTH   A.HEITZ,O.AVRUTINA,D.LE-NGUYEN,U.DIEDERICHSEN,J.F.HERNANDEZ, 
JRNL        AUTH 2 J.GRACY,H.KOLMAR,L.CHICHE                                    
JRNL        TITL   KNOTTIN CYCLIZATION: STRUCTURE AND STABILITY OF CYCLIC AND   
JRNL        TITL 2 LINEAR SQUASH INHIBITORS DO NOT DIFFER SIGNIFICANTLY         
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   A.HEITZ,L.CHICHE,D.LE-NGUYEN,B.CASTRO                        
REMARK   1  TITL   1H 2D NMR AND DISTANCE GEOMETRY STUDY OF THE FOLDING OF      
REMARK   1  TITL 2 ECBALLIUM ELATERIUM TRYPSIN INHIBITOR, A MEMBER OF THE       
REMARK   1  TITL 3 SQUASH INHIBITORS FAMILY                                     
REMARK   1  REF    BIOCHEMISTRY                  V.  28  2392 1989              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   L.CHICHE,C.GABORIAUD,A.HEITZ,J.P.MORNON,B.CASTRO,P.A.KOLLMAN 
REMARK   1  TITL   USE OF RESTRAINED MOLECULAR DYNAMICS IN WATER TO DETERMINE   
REMARK   1  TITL 2 THREE-DIMENSIONAL PROTEIN STRUCTURE: PREDICTION OF THE       
REMARK   1  TITL 3 THREE-DIMENSIONAL STRUCTURE OF ECBALLIUM ELATERIUM TRYPSIN   
REMARK   1  TITL 4 INHIBITOR II                                                 
REMARK   1  REF    PROTEINS:                     V.   6   405 1989              
REMARK   1  REF  2 STRUCT.,FUNCT.,GENET.                                        
REMARK   1  REFN                   ISSN 0887-3585                               
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : XWINNMR 3.1, AMBER 8                                 
REMARK   3   AUTHORS     : BRUKER (XWINNMR), CASE, D.A. ET AL. (AMBER)          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2IT7 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-OCT-06.                  
REMARK 100 THE DEPOSITION ID IS D_1000039985.                                   
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 285; 300                           
REMARK 210  PH                             : 2.7; 2.7                           
REMARK 210  IONIC STRENGTH                 : NULL; NULL                         
REMARK 210  PRESSURE                       : 1 ATM; 1 ATM                       
REMARK 210  SAMPLE CONTENTS                : 4MM EETI-II, 90% H2O, 10% D2O;     
REMARK 210                                   4MM EETI-II, D2O                   
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : 2D NOESY; 2D TOCSY; 2D 1H-13C      
REMARK 210                                   HSQC                               
REMARK 210  SPECTROMETER FIELD STRENGTH    : 600 MHZ                            
REMARK 210  SPECTROMETER MODEL             : AVANCE                             
REMARK 210  SPECTROMETER MANUFACTURER      : BRUKER                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : XWINNMR 3.1, CYANA 2.1             
REMARK 210   METHOD USED                   : TORSION ANGLE DYNAMICS,            
REMARK 210                                   SIMULATED ANNEALING, RESTRAINED    
REMARK 210                                   MOLECULAR DYNAMICS                 
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : 50                                 
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 30                                 
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: 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  3 ARG A   4       44.79    -81.95                                   
REMARK 500  3 LEU A   6       66.08   -118.85                                   
REMARK 500 16 ARG A   4       38.40    -78.92                                   
REMARK 500 18 ARG A   4       40.20    -79.10                                   
REMARK 500 19 ARG A   4       34.16    -78.52                                   
REMARK 500 20 ARG A   4       37.97    -79.53                                   
REMARK 500 22 ARG A   4       33.46    -78.11                                   
REMARK 500 24 ARG A   4       32.80    -80.80                                   
REMARK 500 26 ARG A   4       20.72    -77.35                                   
REMARK 500 29 ARG A   4       29.86    -77.50                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 700                                                                      
REMARK 700 SHEET                                                                
REMARK 700 DETERMINATION METHOD: AUTHOR-DETERMINED                              
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1W7Z   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF ENGINEERED EETI-II. THE C-TERMINUS IS EXTENDED  
REMARK 900 (SER, PRO, ALA).                                                     
REMARK 900 RELATED ID: 1H9H   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF ENGINEERED EETI-II COMPLEXED WITH TRYPSIN. THE  
REMARK 900 C-TERMINUS IS EXTENDED (SER, PRO, 6HIS).                             
REMARK 900 RELATED ID: 1H9I   RELATED DB: PDB                                   
REMARK 900 CYSTAL STRUCTURE OF AN ENGINEERED EETI-II MUTANT COMPLEXED WITH      
REMARK 900 TRYPSIN. THE C-TERMINUS IS EXTENDED (SER, PRO, 6HIS).                
REMARK 900 RELATED ID: 2LET   RELATED DB: PDB                                   
REMARK 900 SOLUTION STRUCTURE OF AN EETI-II MUTANT                              
REMARK 900 RELATED ID: 2C4B   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF AN ENGINEERED EETI-II MUTANT FUSED TO BARNASE   
REMARK 900 RELATED ID: 2IT8   RELATED DB: PDB                                   
DBREF  2IT7 A    1    28  UNP    P12071   ITR2_ECBEL       1     28             
SEQRES   1 A   28  GLY CYS PRO ARG ILE LEU MET ARG CYS LYS GLN ASP SER          
SEQRES   2 A   28  ASP CYS LEU ALA GLY CYS VAL CYS GLY PRO ASN GLY PHE          
SEQRES   3 A   28  CYS GLY                                                      
HELIX    1   1 GLN A   11  CYS A   15  5                                   5    
SHEET    1   B 3 MET A   7  CYS A   9  0                                        
SHEET    2   B 3 GLY A  25  GLY A  28 -1  N  CYS A  27   O  MET A   7           
SHEET    3   B 3 VAL A  20  GLY A  22 -1  O  VAL A  20   N  GLY A  28           
SSBOND   1 CYS A    2    CYS A   19                          1555   1555  2.04  
SSBOND   2 CYS A    9    CYS A   21                          1555   1555  2.04  
SSBOND   3 CYS A   15    CYS A   27                          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                         
MODEL        1