HEADER    MUSCLE PROTEIN                          14-MAY-97   1AJ4              
TITLE     STRUCTURE OF CALCIUM-SATURATED CARDIAC TROPONIN C, NMR, 1 STRUCTURE   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TROPONIN C;                                                
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: CTNC;                                                       
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES;                                                       
COMPND   7 OTHER_DETAILS: CARDIAC TROPONIN C, CALCIUM IONS BOUND AT SITES II,   
COMPND   8 III AND IV                                                           
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: GALLUS GALLUS;                                  
SOURCE   3 ORGANISM_COMMON: CHICKEN;                                            
SOURCE   4 ORGANISM_TAXID: 9031;                                                
SOURCE   5 CELL_LINE: BL21;                                                     
SOURCE   6 ORGAN: HEART;                                                        
SOURCE   7 TISSUE: MUSCLE;                                                      
SOURCE   8 CELLULAR_LOCATION: THIN FILAMENT;                                    
SOURCE   9 GENE: CTNC(A-CYS);                                                   
SOURCE  10 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  11 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  12 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3) PLYSS;                          
SOURCE  13 EXPRESSION_SYSTEM_PLASMID: PET-23D;                                  
SOURCE  14 EXPRESSION_SYSTEM_GENE: CTNC(A-CYS)                                  
KEYWDS    CARDIAC, MUSCLE PROTEIN, REGULATORY, CALCIUM BINDING                  
EXPDTA    SOLUTION NMR                                                          
AUTHOR    S.K.SIA,M.X.LI,L.SPYRACOPOULOS,S.M.GAGNE,W.LIU,J.A.PUTKEY,B.D.SYKES   
REVDAT   5   22-MAY-24 1AJ4    1       REMARK                                   
REVDAT   4   03-NOV-21 1AJ4    1       REMARK SEQADV LINK                       
REVDAT   3   19-MAY-09 1AJ4    1       REMARK                                   
REVDAT   2   24-FEB-09 1AJ4    1       VERSN                                    
REVDAT   1   20-MAY-98 1AJ4    0                                                
JRNL        AUTH   S.K.SIA,M.X.LI,L.SPYRACOPOULOS,S.M.GAGNE,W.LIU,J.A.PUTKEY,   
JRNL        AUTH 2 B.D.SYKES                                                    
JRNL        TITL   STRUCTURE OF CARDIAC MUSCLE TROPONIN C UNEXPECTEDLY REVEALS  
JRNL        TITL 2 A CLOSED REGULATORY DOMAIN.                                  
JRNL        REF    J.BIOL.CHEM.                  V. 272 18216 1997              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   9218458                                                      
JRNL        DOI    10.1074/JBC.272.29.18216                                     
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.1                                           
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: CALCULATIONS OF THE N- AND C-DOMAINS      
REMARK   3  WERE PERFORMED SEPARATELY BECAUSE THE CENTRAL LINKER IS             
REMARK   3  UNSTRUCTURED AND FLEXIBLE IN SOLUTION. THE ORIENTATION OF THE       
REMARK   3  TWO DOMAINS WITH RESPECT TO EACH OTHER AND THE STRUCTURE OF THE     
REMARK   3  CENTRAL LINKER (RESIDUES 86 - 94) ARE THEREFORE UNDEFINED. THE N-   
REMARK   3  DOMAIN (2 - 85) AND C-DOMAIN (95 - 161) IN THIS STRUCTURE ARE       
REMARK   3  THE STRUCTURES IN THE ENSEMBLES CLOSEST TO THE UNMINIMIZED          
REMARK   3  AVERAGE STRUCTURES. IN PARTICULAR, THE N-DOMAIN HERE CORRESPONDS    
REMARK   3  TO MODEL 25 IN 2CTN, AND THE C-DOMAIN TO MODEL 3 IN 3CTN. THE       
REMARK   3  CENTRAL LINKER HERE IS THE RESULT OF ENERGY MINIMIZATION WITHOUT    
REMARK   3  EXPERIMENTAL RESTRAINTS, AND IS ADDED ONLY AS A TOOL OF             
REMARK   3  CONVENIENCE.                                                        
REMARK   4                                                                      
REMARK   4 1AJ4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000170879.                                   
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 303                                
REMARK 210  PH                             : 6.7                                
REMARK 210  IONIC STRENGTH                 : NULL                               
REMARK 210  PRESSURE                       : NULL                               
REMARK 210  SAMPLE CONTENTS                : NULL                               
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : NOESY; TOCSY                       
REMARK 210  SPECTROMETER FIELD STRENGTH    : 500 MHZ; 600 MHZ                   
REMARK 210  SPECTROMETER MODEL             : UNITYPLUS                          
REMARK 210  SPECTROMETER MANUFACTURER      : VARIAN                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : X-PLOR                             
REMARK 210   METHOD USED                   : SIMULATED ANNEALING                
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : 35                                 
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 1                                  
REMARK 210 CONFORMERS, SELECTION CRITERIA  : SMALLEST RMSD TO THE AVERAGE       
REMARK 210                                   STRUCTURE                          
REMARK 210                                                                      
REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL                
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 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (RES=RESIDUE NAME; C=CHAIN IDENTIFIER;                   
REMARK 465 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                            
REMARK 465     RES C SSSEQI                                                     
REMARK 465     ALA A     1                                                      
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   O    ILE A    61     H    ASP A    65              1.46            
REMARK 500   O    THR A    13     H    GLN A    16              1.53            
REMARK 500   O    VAL A    28     H    ALA A    31              1.60            
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    LEU A  12      165.91    -43.55                                   
REMARK 500    ALA A  31     -160.07    -77.51                                   
REMARK 500    GLU A  32      -38.25   -146.30                                   
REMARK 500    LEU A  48      -82.31    -76.97                                   
REMARK 500    ASP A  73     -164.27   -107.56                                   
REMARK 500    MET A  85      -64.21   -104.58                                   
REMARK 500    ASP A  87      113.83     59.12                                   
REMARK 500    SER A  89      -52.86   -177.57                                   
REMARK 500    LYS A  90      174.43    -56.60                                   
REMARK 500    LYS A  92      101.19   -179.27                                   
REMARK 500    THR A  93     -124.17   -146.98                                   
REMARK 500    ASP A 105       88.50    -56.43                                   
REMARK 500    THR A 124       21.42   -140.73                                   
REMARK 500    GLU A 126     -154.28    -74.95                                   
REMARK 500    ASN A 144       72.18     47.97                                   
REMARK 500    VAL A 160      -54.86   -158.08                                   
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  46         0.22    SIDE CHAIN                              
REMARK 500    ARG A  83         0.31    SIDE CHAIN                              
REMARK 500    ARG A 102         0.32    SIDE CHAIN                              
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                              CA A 162  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  65   CG                                                     
REMARK 620 2 ASP A  65   OD1  30.8                                              
REMARK 620 3 ASP A  65   OD2  30.6  60.6                                        
REMARK 620 4 ASP A  67   OD1  61.0  55.6  66.6                                  
REMARK 620 5 SER A  69   OG   86.9 108.8  60.0  67.3                            
REMARK 620 6 THR A  71   O   104.0 114.1  98.4 164.4 110.0                      
REMARK 620 7 THR A  71   OG1 142.7 172.7 112.5 120.5  64.2  68.2                
REMARK 620 8 GLU A  76   OE1  80.6  69.8 100.6 123.3 154.3  52.8 115.3          
REMARK 620 9 GLU A  76   OE2 113.2  86.3 142.3 110.9 156.6  77.9 101.0  47.2    
REMARK 620 N                    1     2     3     4     5     6     7     8     
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 163  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 105   OD1                                                    
REMARK 620 2 ASN A 107   OD1 124.0                                              
REMARK 620 3 ASP A 109   OD1  90.7  71.2                                        
REMARK 620 4 TYR A 111   O    72.2 135.7  67.5                                  
REMARK 620 5 GLU A 116   OE1  66.3 120.6 157.0 103.7                            
REMARK 620 6 GLU A 116   OE2 114.7  84.7 152.2 129.1  49.6                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 164  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 141   OD1                                                    
REMARK 620 2 ASN A 143   OD1  55.4                                              
REMARK 620 3 ASP A 145   OD1  63.2  75.9                                        
REMARK 620 4 ASP A 145   OD2 106.4  86.9  46.2                                  
REMARK 620 5 ARG A 147   O    97.3 142.8  68.7  76.8                            
REMARK 620 6 GLU A 152   OE2 110.3  69.4 138.9 109.6 147.6                      
REMARK 620 7 GLU A 152   OE1  64.0  61.6 124.8 147.4 133.5  53.5                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 162                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 163                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 164                  
DBREF  1AJ4 A    3   161  UNP    P09860   TNNC1_CHICK      3    161             
SEQADV 1AJ4 SER A   35  UNP  P09860    CYS    35 ENGINEERED MUTATION            
SEQADV 1AJ4 SER A   84  UNP  P09860    CYS    84 ENGINEERED MUTATION            
SEQRES   1 A  161  ALA ALA ASP ILE TYR LYS ALA ALA VAL GLU GLN LEU THR          
SEQRES   2 A  161  GLU GLU GLN LYS ASN GLU PHE LYS ALA ALA PHE ASP ILE          
SEQRES   3 A  161  PHE VAL LEU GLY ALA GLU ASP GLY SER ILE SER THR LYS          
SEQRES   4 A  161  GLU LEU GLY LYS VAL MET ARG MET LEU GLY GLN ASN PRO          
SEQRES   5 A  161  THR PRO GLU GLU LEU GLN GLU MET ILE ASP GLU VAL ASP          
SEQRES   6 A  161  GLU ASP GLY SER GLY THR VAL ASP PHE ASP GLU PHE LEU          
SEQRES   7 A  161  VAL MET MET VAL ARG SER MET LYS ASP ASP SER LYS GLY          
SEQRES   8 A  161  LYS THR GLU GLU GLU LEU SER ASP LEU PHE ARG MET PHE          
SEQRES   9 A  161  ASP LYS ASN ALA ASP GLY TYR ILE ASP LEU GLU GLU LEU          
SEQRES  10 A  161  LYS ILE MET LEU GLN ALA THR GLY GLU THR ILE THR GLU          
SEQRES  11 A  161  ASP ASP ILE GLU GLU LEU MET LYS ASP GLY ASP LYS ASN          
SEQRES  12 A  161  ASN ASP GLY ARG ILE ASP TYR ASP GLU PHE LEU GLU PHE          
SEQRES  13 A  161  MET LYS GLY VAL GLU                                          
HET     CA  A 162       1                                                       
HET     CA  A 163       1                                                       
HET     CA  A 164       1                                                       
HETNAM      CA CALCIUM ION                                                      
FORMUL   2   CA    3(CA 2+)                                                     
HELIX    1  HN LYS A    6  GLU A   10  1                                   5    
HELIX    2  HA GLU A   14  VAL A   28  1                                  15    
HELIX    3  HB THR A   38  LEU A   48  1                                  11    
HELIX    4  HC PRO A   54  VAL A   64  1                                  11    
HELIX    5  HD PHE A   74  ARG A   83  1                                  10    
HELIX    6  HE GLU A   95  MET A  103  1                                   9    
HELIX    7  HF LEU A  114  ALA A  123  1                                  10    
HELIX    8  HG GLU A  130  GLY A  140  1                                  11    
HELIX    9  HH TYR A  150  LYS A  158  1                                   9    
SHEET    1  S1 2 SER A  35  SER A  37  0                                        
SHEET    2  S1 2 THR A  71  ASP A  73 -1  N  VAL A  72   O  ILE A  36           
SHEET    1  S2 2 TYR A 111  ASP A 113  0                                        
SHEET    2  S2 2 ARG A 147  ASP A 149 -1  O  ILE A 148   N  ILE A 112           
LINK         CG  ASP A  65                CA    CA A 162     1555   1555  2.38  
LINK         OD1 ASP A  65                CA    CA A 162     1555   1555  2.08  
LINK         OD2 ASP A  65                CA    CA A 162     1555   1555  2.18  
LINK         OD1 ASP A  67                CA    CA A 162     1555   1555  2.81  
LINK         OG  SER A  69                CA    CA A 162     1555   1555  2.74  
LINK         O   THR A  71                CA    CA A 162     1555   1555  2.81  
LINK         OG1 THR A  71                CA    CA A 162     1555   1555  2.75  
LINK         OE1 GLU A  76                CA    CA A 162     1555   1555  2.78  
LINK         OE2 GLU A  76                CA    CA A 162     1555   1555  2.57  
LINK         OD1 ASP A 105                CA    CA A 163     1555   1555  2.81  
LINK         OD1 ASN A 107                CA    CA A 163     1555   1555  2.78  
LINK         OD1 ASP A 109                CA    CA A 163     1555   1555  2.10  
LINK         O   TYR A 111                CA    CA A 163     1555   1555  2.08  
LINK         OE1 GLU A 116                CA    CA A 163     1555   1555  2.42  
LINK         OE2 GLU A 116                CA    CA A 163     1555   1555  2.68  
LINK         OD1 ASP A 141                CA    CA A 164     1555   1555  2.77  
LINK         OD1 ASN A 143                CA    CA A 164     1555   1555  2.77  
LINK         OD1 ASP A 145                CA    CA A 164     1555   1555  2.45  
LINK         OD2 ASP A 145                CA    CA A 164     1555   1555  2.93  
LINK         O   ARG A 147                CA    CA A 164     1555   1555  2.16  
LINK         OE2 GLU A 152                CA    CA A 164     1555   1555  2.26  
LINK         OE1 GLU A 152                CA    CA A 164     1555   1555  2.50  
SITE     1 AC1  5 ASP A  65  ASP A  67  SER A  69  THR A  71                    
SITE     2 AC1  5 GLU A  76                                                     
SITE     1 AC2  6 ASP A 105  ASN A 107  ASP A 109  TYR A 111                    
SITE     2 AC2  6 ILE A 112  GLU A 116                                          
SITE     1 AC3  5 ASP A 141  ASN A 143  ASP A 145  ARG A 147                    
SITE     2 AC3  5 GLU A 152                                                     
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