HEADER    TRANSPORT(THYROXINE)                    02-NOV-92   1TTB              
TITLE     THE X-RAY CRYSTAL STRUCTURE REFINEMENTS OF NORMAL HUMAN TRANSTHYRETIN 
TITLE    2 AND THE AMYLOIDOGENIC VAL30MET VARIANT TO 1.7 ANGSTROMS RESOLUTION   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRANSTHYRETIN;                                             
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606                                                 
KEYWDS    TRANSPORT(THYROXINE)                                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    L.K.STEINRAUF,J.A.HAMILTON,B.C.BRADEN                                 
REVDAT   7   14-FEB-24 1TTB    1       REMARK SEQADV                            
REVDAT   6   29-NOV-17 1TTB    1       REMARK HELIX                             
REVDAT   5   13-JUL-11 1TTB    1       VERSN                                    
REVDAT   4   24-FEB-09 1TTB    1       VERSN                                    
REVDAT   3   01-APR-03 1TTB    1       JRNL                                     
REVDAT   2   15-JAN-95 1TTB    1       TURN                                     
REVDAT   1   31-OCT-93 1TTB    0                                                
JRNL        AUTH   J.A.HAMILTON,L.K.STEINRAUF,B.C.BRADEN,J.LIEPNIEKS,           
JRNL        AUTH 2 M.D.BENSON,G.HOLMGREN,O.SANDGREN,L.STEEN                     
JRNL        TITL   THE X-RAY CRYSTAL STRUCTURE REFINEMENTS OF NORMAL HUMAN      
JRNL        TITL 2 TRANSTHYRETIN AND THE AMYLOIDOGENIC VAL-30-->MET VARIANT TO  
JRNL        TITL 3 1.7-A RESOLUTION.                                            
JRNL        REF    J.BIOL.CHEM.                  V. 268  2416 1993              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   8428915                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.70 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PROLSQ                                               
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 5.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : NULL                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.157                           
REMARK   3   R VALUE            (WORKING SET) : NULL                            
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                               
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1948                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 175                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.016 ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : 0.500 ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND               (A**2) : NULL  ; NULL                
REMARK   3   MAIN-CHAIN ANGLE              (A**2) : NULL  ; NULL                
REMARK   3   SIDE-CHAIN BOND               (A**2) : NULL  ; NULL                
REMARK   3   SIDE-CHAIN ANGLE              (A**2) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS:                                           
REMARK   3  OCCUPANCIES OF SOLVENT WATER MOLECULES WERE REFINED WITH            
REMARK   3  PROLSQ.  OCCUPANCIES OF DISORDERED SIDE CHAINS OR OF ATOMS          
REMARK   3  WITH LESS THAN UNIT OCCUPANCIES WERE SELECTED TO FLATTEN            
REMARK   3  THE FINAL FO-FC DIFFERENCE FOURIER.  ATOMS WITH                     
REMARK   3  OCCUPANCIES OF 0.00 HAVE NO OBSERVABLE ELECTRON DENSITY.            
REMARK   3  SHEET IDENTIFIERS ARE BASED ON PROTEIN DATA BANK ENTRY 2PAB         
REMARK   3  (PREALBUMIN, OATLEY AND BLAKE).                                     
REMARK   4                                                                      
REMARK   4 1TTB 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_1000176846.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 45.10                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.24                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X+1/2,Y+1/2,-Z                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000       21.86000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       43.04500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       21.86000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       43.04500            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
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 300 REMARK: MONOMERS A AND B OF THE DIMER ARE RELATED TO EACH OTHER BY   
REMARK 300 A PSEUDO TWO-FOLD AXIS APPROXIMATELY PARALLEL TO THE                 
REMARK 300 CRYSTALLOGRAPHIC 'B' DIRECTION, PERPENDICULAR TO THE                 
REMARK 300 SURFACE OF THE SHEETS, AND PASSING BETWEEN THE H STRAND              
REMARK 300 OF ONE MONOMER AND THE H STRAND OF THE OTHER.                        
REMARK 300 THE TRANSFORMATION PRESENTED ON *MTRIX* RECORDS BELOW WILL           
REMARK 300 YIELD APPROXIMATE COORDINATES FOR CHAIN *B* WHEN APPLIED TO          
REMARK 300 CHAIN *A*.                                                           
REMARK 300                                                                      
REMARK 300 TWO AB DIMERS ARE ROTATED AROUND THE TWO-FOLD                        
REMARK 300 CRYSTALLOGRAPHIC AXIS TO FORM THE TETRAMER, AB-A'B'.                 
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 6380 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 21160 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -45.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
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 350   BIOMT1   2 -1.000000  0.000000  0.000000       43.72000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       86.09000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 610  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH B 618  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH B 619  LIES ON A SPECIAL POSITION.                          
REMARK 475                                                                      
REMARK 475 ZERO OCCUPANCY RESIDUES                                              
REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY.             
REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT                
REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;                      
REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE)          
REMARK 475   M RES C  SSEQI                                                     
REMARK 475     LYS B   126                                                      
REMARK 475     GLU B   127                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     ARG A   21   NH1  NH2                                            
REMARK 480     GLU A   51   OE1  OE2                                            
REMARK 480     LYS A   80   CE   NZ                                             
REMARK 480     GLU A   92   CD   OE1  OE2                                       
REMARK 480     ASP B   39   CG   OD1  OD2                                       
REMARK 480     ASN B  124   ND2                                                 
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
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   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    CYS A  10   CB    CYS A  10   SG      0.292                       
REMARK 500    LYS A  35   CE    LYS A  35   NZ      1.038                       
REMARK 500    GLU A  63   CD    GLU A  63   OE2     0.087                       
REMARK 500    SER A  85   CB    SER A  85   OG      0.085                       
REMARK 500    ARG A 104   NE    ARG A 104   CZ      0.700                       
REMARK 500    ARG A 104   CZ    ARG A 104   NH1     2.934                       
REMARK 500    ARG A 104   CZ    ARG A 104   NH2     1.950                       
REMARK 500    LYS B  35   CG    LYS B  35   CD      0.280                       
REMARK 500    GLU B  63   CD    GLU B  63   OE1     0.088                       
REMARK 500    GLU B  72   CD    GLU B  72   OE1    -0.099                       
REMARK 500    GLU B  72   CD    GLU B  72   OE1    -0.094                       
REMARK 500    THR B 119   CB    THR B 119   OG1    -0.264                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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    CYS A  10   N   -  CA  -  CB  ANGL. DEV. =  11.5 DEGREES          
REMARK 500    CYS A  10   CA  -  CB  -  SG  ANGL. DEV. = -14.7 DEGREES          
REMARK 500    LYS A  35   CD  -  CE  -  NZ  ANGL. DEV. = -42.1 DEGREES          
REMARK 500    SER A  85   CA  -  CB  -  OG  ANGL. DEV. = -19.4 DEGREES          
REMARK 500    ARG A 104   CD  -  NE  -  CZ  ANGL. DEV. = -15.5 DEGREES          
REMARK 500    ARG A 104   NH1 -  CZ  -  NH2 ANGL. DEV. = -87.5 DEGREES          
REMARK 500    ARG A 104   NE  -  CZ  -  NH1 ANGL. DEV. = 106.6 DEGREES          
REMARK 500    ARG A 104   NE  -  CZ  -  NH2 ANGL. DEV. = -75.1 DEGREES          
REMARK 500    GLU B   7   CA  -  CB  -  CG  ANGL. DEV. =  14.5 DEGREES          
REMARK 500    ARG B  21   CD  -  NE  -  CZ  ANGL. DEV. =  10.4 DEGREES          
REMARK 500    LYS B  35   CG  -  CD  -  CE  ANGL. DEV. = -28.1 DEGREES          
REMARK 500    PRO B 125   CA  -  N   -  CD  ANGL. DEV. =  -8.8 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    PRO A   2      172.68    -51.90                                   
REMARK 500    THR A   3      -65.44   -154.32                                   
REMARK 500    THR A   5       32.26    108.06                                   
REMARK 500    GLU A   7      100.07   -172.73                                   
REMARK 500    SER A   8      -98.26    -57.74                                   
REMARK 500    CYS A  10       80.14     73.86                                   
REMARK 500    PRO A 125      136.64    -21.92                                   
REMARK 500    LYS A 126      132.47    127.41                                   
REMARK 500    THR B   3     -130.46   -146.20                                   
REMARK 500    THR B   5       36.89    -96.36                                   
REMARK 500    SER B   8     -154.46   -157.77                                   
REMARK 500    PHE B  44      -53.32   -130.36                                   
REMARK 500    PRO B 125       84.45     35.19                                   
REMARK 500    LYS B 126      -63.88     54.53                                   
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 B  34         0.20    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  1TTB A    1   127  UNP    P02766   TTHY_HUMAN      21    147             
DBREF  1TTB B    1   127  UNP    P02766   TTHY_HUMAN      21    147             
SEQADV 1TTB THR A  109  UNP  P02766    ALA   129 CONFLICT                       
SEQADV 1TTB THR B  109  UNP  P02766    ALA   129 CONFLICT                       
SEQRES   1 A  127  GLY PRO THR GLY THR GLY GLU SER LYS CYS PRO LEU MET          
SEQRES   2 A  127  VAL LYS VAL LEU ASP ALA VAL ARG GLY SER PRO ALA ILE          
SEQRES   3 A  127  ASN VAL ALA VAL HIS VAL PHE ARG LYS ALA ALA ASP ASP          
SEQRES   4 A  127  THR TRP GLU PRO PHE ALA SER GLY LYS THR SER GLU SER          
SEQRES   5 A  127  GLY GLU LEU HIS GLY LEU THR THR GLU GLU GLU PHE VAL          
SEQRES   6 A  127  GLU GLY ILE TYR LYS VAL GLU ILE ASP THR LYS SER TYR          
SEQRES   7 A  127  TRP LYS ALA LEU GLY ILE SER PRO PHE HIS GLU HIS ALA          
SEQRES   8 A  127  GLU VAL VAL PHE THR ALA ASN ASP SER GLY PRO ARG ARG          
SEQRES   9 A  127  TYR THR ILE ALA THR LEU LEU SER PRO TYR SER TYR SER          
SEQRES  10 A  127  THR THR ALA VAL VAL THR ASN PRO LYS GLU                      
SEQRES   1 B  127  GLY PRO THR GLY THR GLY GLU SER LYS CYS PRO LEU MET          
SEQRES   2 B  127  VAL LYS VAL LEU ASP ALA VAL ARG GLY SER PRO ALA ILE          
SEQRES   3 B  127  ASN VAL ALA VAL HIS VAL PHE ARG LYS ALA ALA ASP ASP          
SEQRES   4 B  127  THR TRP GLU PRO PHE ALA SER GLY LYS THR SER GLU SER          
SEQRES   5 B  127  GLY GLU LEU HIS GLY LEU THR THR GLU GLU GLU PHE VAL          
SEQRES   6 B  127  GLU GLY ILE TYR LYS VAL GLU ILE ASP THR LYS SER TYR          
SEQRES   7 B  127  TRP LYS ALA LEU GLY ILE SER PRO PHE HIS GLU HIS ALA          
SEQRES   8 B  127  GLU VAL VAL PHE THR ALA ASN ASP SER GLY PRO ARG ARG          
SEQRES   9 B  127  TYR THR ILE ALA THR LEU LEU SER PRO TYR SER TYR SER          
SEQRES  10 B  127  THR THR ALA VAL VAL THR ASN PRO LYS GLU                      
FORMUL   3  HOH   *175(H2 O)                                                    
HELIX    1 1HX THR A   75  GLY A   83  1                                   9    
HELIX    2 2HX THR B   75  GLY B   83  1                                   9    
SHEET    1 INT 8 GLY A  53  HIS A  56  0                                        
SHEET    2 INT 8 PRO A  11  ASP A  18 -1  N  VAL A  14   O  LEU A  55           
SHEET    3 INT 8 ARG A 103  SER A 112  1  O  ILE A 107   N  MET A  13           
SHEET    4 INT 8 SER A 115  THR A 123 -1  O  THR A 119   N  ALA A 108           
SHEET    5 INT 8 SER B 115  THR B 123 -1  N  THR B 118   O  TYR A 116           
SHEET    6 INT 8 ARG B 103  SER B 112 -1  O  ALA B 108   N  THR B 119           
SHEET    7 INT 8 PRO B  11  ASP B  18  1  O  MET B  13   N  ILE B 107           
SHEET    8 INT 8 GLY B  53  HIS B  56 -1  N  LEU B  55   O  VAL B  14           
SHEET    1 X1A 4 THR A  40  GLU A  42  0                                        
SHEET    2 X1A 4 VAL A  28  ALA A  36 -1  N  ARG A  34   O  GLU A  42           
SHEET    3 X1A 4 GLU A  66  ASP A  74 -1  O  GLU A  72   N  HIS A  31           
SHEET    4 X1A 4 HIS A  90  ALA A  97 -1  O  VAL A  93   N  VAL A  71           
SHEET    1 X2A 4 ALA A  45  THR A  49  0                                        
SHEET    2 X2A 4 VAL A  28  ALA A  36 -1  N  VAL A  30   O  GLY A  47           
SHEET    3 X2A 4 GLU A  66  ASP A  74 -1  O  GLU A  72   N  HIS A  31           
SHEET    4 X2A 4 HIS A  90  ALA A  97 -1  O  VAL A  93   N  VAL A  71           
SHEET    1 X1B 4 THR B  40  GLU B  42  0                                        
SHEET    2 X1B 4 VAL B  28  ALA B  36 -1  N  ARG B  34   O  GLU B  42           
SHEET    3 X1B 4 GLU B  66  ASP B  74 -1  O  GLU B  72   N  HIS B  31           
SHEET    4 X1B 4 HIS B  90  ALA B  97 -1  O  VAL B  93   N  VAL B  71           
SHEET    1 X2B 4 ALA B  45  THR B  49  0                                        
SHEET    2 X2B 4 VAL B  28  ALA B  36 -1  N  VAL B  30   O  GLY B  47           
SHEET    3 X2B 4 GLU B  66  ASP B  74 -1  O  GLU B  72   N  HIS B  31           
SHEET    4 X2B 4 HIS B  90  ALA B  97 -1  O  VAL B  93   N  VAL B  71           
CRYST1   43.720   86.090   65.790  90.00  90.00  90.00 P 21 21 2     8          
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      0.022873  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.011616  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015200        0.00000                         
MTRIX1   1 -0.990420  0.137990 -0.004390       37.60101    1                    
MTRIX2   1  0.138000  0.990430 -0.002620       -2.39622    1                    
MTRIX3   1  0.003990 -0.003210 -0.999990       98.62653    1