HEADER    TRANSPORT PROTEIN                       14-APR-05   1ZD6              
TITLE     CRYSTAL STRUCTURE OF HUMAN TRANSTHYRETIN WITH BOUND CHLORIDE          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRANSTHYRETIN;                                             
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: PREALBUMIN, TBPA, TTR, ATTR;                                
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET3A                                     
KEYWDS    TRANSPORT, TRANSPORT PROTEIN                                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.HORNBERG,U.W.HULTDIN,A.OLOFSSON,A.E.SAUER-ERIKSSON                  
REVDAT   4   13-MAR-24 1ZD6    1       REMARK SEQADV                            
REVDAT   3   13-JUL-11 1ZD6    1       VERSN                                    
REVDAT   2   24-FEB-09 1ZD6    1       VERSN                                    
REVDAT   1   12-JUL-05 1ZD6    0                                                
JRNL        AUTH   A.HORNBERG,U.W.HULTDIN,A.OLOFSSON,A.E.SAUER-ERIKSSON         
JRNL        TITL   THE EFFECT OF IODIDE AND CHLORIDE ON TRANSTHYRETIN STRUCTURE 
JRNL        TITL 2 AND STABILITY                                                
JRNL        REF    BIOCHEMISTRY                  V.  44  9290 2005              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   15981995                                                     
JRNL        DOI    10.1021/BI050249Z                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.90 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.0                                           
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 19.69                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 17967                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.201                           
REMARK   3   R VALUE            (WORKING SET) : 0.200                           
REMARK   3   FREE R VALUE                     : 0.221                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.200                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 979                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.90                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.95                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1296                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2320                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 77                           
REMARK   3   BIN FREE R VALUE                    : 0.2440                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1785                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 6                                       
REMARK   3   SOLVENT ATOMS            : 136                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   B VALUE TYPE : LIKELY RESIDUAL                                     
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 15.36                          
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 OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.169         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.141         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.128         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.255         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.947                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.945                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1858 ; 0.007 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  1635 ; 0.001 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2546 ; 1.177 ; 1.932       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  3808 ; 0.692 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   237 ; 3.393 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   311 ;17.601 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   287 ; 0.073 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  2086 ; 0.003 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   382 ; 0.001 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   287 ; 0.197 ; 0.300       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  1426 ; 0.202 ; 0.300       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   183 ; 0.130 ; 0.500       
REMARK   3   H-BOND (X...Y) OTHERS             (A):     1 ; 0.025 ; 0.500       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    13 ; 0.166 ; 0.300       
REMARK   3   SYMMETRY VDW OTHERS               (A):    50 ; 0.207 ; 0.300       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    13 ; 0.162 ; 0.500       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  1166 ; 0.626 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1901 ; 1.208 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   692 ; 1.610 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   645 ; 2.817 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 2                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A    10        A   125                          
REMARK   3    ORIGIN FOR THE GROUP (A):  21.5745  13.0759  25.7889              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0725 T22:   0.0103                                     
REMARK   3      T33:   0.0886 T12:  -0.0038                                     
REMARK   3      T13:   0.0094 T23:  -0.0105                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.9997 L22:   0.8488                                     
REMARK   3      L33:   0.3533 L12:  -0.6225                                     
REMARK   3      L13:  -0.3201 L23:   0.1965                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0300 S12:  -0.0190 S13:   0.0618                       
REMARK   3      S21:   0.0073 S22:  -0.0156 S23:  -0.0152                       
REMARK   3      S31:   0.0298 S32:   0.0273 S33:   0.0455                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   B    10        B   124                          
REMARK   3    ORIGIN FOR THE GROUP (A):  19.0117  12.5939   6.0842              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0825 T22:   0.0003                                     
REMARK   3      T33:   0.0813 T12:  -0.0047                                     
REMARK   3      T13:   0.0079 T23:  -0.0018                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.9797 L22:   1.2614                                     
REMARK   3      L33:   0.5120 L12:   0.5681                                     
REMARK   3      L13:  -0.3864 L23:  -0.7168                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0071 S12:   0.0188 S13:   0.0905                       
REMARK   3      S21:  -0.0265 S22:  -0.0776 S23:   0.0400                       
REMARK   3      S31:   0.0527 S32:   0.0384 S33:   0.0705                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 1ZD6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 18-APR-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000032591.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 20-OCT-02                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : ENRAF-NONIUS                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NI FILTER, PT MIRRORS              
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MACSCIENCE                         
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 18946                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.900                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.08600                            
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) : 1.90                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.97                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.57500                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 40.96                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.08                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, SODIUM CITRATE,       
REMARK 280  POLYETHYLENEGLYCOL, SODIUM CHLORIDE, PH 5.0, VAPOR DIFFUSION,       
REMARK 280  HANGING DROP, TEMPERATURE 291K                                      
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       21.32950            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       42.79350            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       21.32950            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       42.79350            
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: THE SECOND PART OF THE BIOLOGICAL ASSEMBLY IS GENERATED BY   
REMARK 300 THE TWO FOLD AXIS: -X+1, -Y, Z                                       
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: 8440 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18760 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -192.0 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       42.65900            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  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. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A    -1                                                      
REMARK 465     GLY A     1                                                      
REMARK 465     PRO A     2                                                      
REMARK 465     THR A     3                                                      
REMARK 465     GLY A     4                                                      
REMARK 465     THR A     5                                                      
REMARK 465     GLY A     6                                                      
REMARK 465     GLU A     7                                                      
REMARK 465     SER A     8                                                      
REMARK 465     LYS A     9                                                      
REMARK 465     LYS A   126                                                      
REMARK 465     GLU A   127                                                      
REMARK 465     MET B    -1                                                      
REMARK 465     GLY B     1                                                      
REMARK 465     PRO B     2                                                      
REMARK 465     THR B     3                                                      
REMARK 465     GLY B     4                                                      
REMARK 465     THR B     5                                                      
REMARK 465     GLY B     6                                                      
REMARK 465     GLU B     7                                                      
REMARK 465     SER B     8                                                      
REMARK 465     LYS B     9                                                      
REMARK 465     PRO B   125                                                      
REMARK 465     LYS B   126                                                      
REMARK 465     GLU B   127                                                      
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    ASP A  74   CB  -  CG  -  OD2 ANGL. DEV. =   6.0 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    ALA A  81        0.75    -67.92                                   
REMARK 500    PRO B 102      172.19    -48.99                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 301                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 302                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 303                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 304                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL B 305                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 306                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1F41   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF HUMAN WILD-TYPE TRANSTHYRETIN                   
REMARK 900 RELATED ID: 1ZCR   RELATED DB: PDB                                   
REMARK 900 THE SAME PROTEIN COMPLEXED WITH IODIDE ION                           
DBREF  1ZD6 A    1   127  UNP    P02766   TTHY_HUMAN      21    147             
DBREF  1ZD6 B    1   127  UNP    P02766   TTHY_HUMAN      21    147             
SEQADV 1ZD6 MET A   -1  UNP  P02766              INITIATING METHIONINE          
SEQADV 1ZD6 MET B   -1  UNP  P02766              INITIATING METHIONINE          
SEQRES   1 A  128  MET GLY PRO THR GLY THR GLY GLU SER LYS CYS PRO LEU          
SEQRES   2 A  128  MET VAL LYS VAL LEU ASP ALA VAL ARG GLY SER PRO ALA          
SEQRES   3 A  128  ILE ASN VAL ALA VAL HIS VAL PHE ARG LYS ALA ALA ASP          
SEQRES   4 A  128  ASP THR TRP GLU PRO PHE ALA SER GLY LYS THR SER GLU          
SEQRES   5 A  128  SER GLY GLU LEU HIS GLY LEU THR THR GLU GLU GLU PHE          
SEQRES   6 A  128  VAL GLU GLY ILE TYR LYS VAL GLU ILE ASP THR LYS SER          
SEQRES   7 A  128  TYR TRP LYS ALA LEU GLY ILE SER PRO PHE HIS GLU HIS          
SEQRES   8 A  128  ALA GLU VAL VAL PHE THR ALA ASN ASP SER GLY PRO ARG          
SEQRES   9 A  128  ARG TYR THR ILE ALA ALA LEU LEU SER PRO TYR SER TYR          
SEQRES  10 A  128  SER THR THR ALA VAL VAL THR ASN PRO LYS GLU                  
SEQRES   1 B  128  MET GLY PRO THR GLY THR GLY GLU SER LYS CYS PRO LEU          
SEQRES   2 B  128  MET VAL LYS VAL LEU ASP ALA VAL ARG GLY SER PRO ALA          
SEQRES   3 B  128  ILE ASN VAL ALA VAL HIS VAL PHE ARG LYS ALA ALA ASP          
SEQRES   4 B  128  ASP THR TRP GLU PRO PHE ALA SER GLY LYS THR SER GLU          
SEQRES   5 B  128  SER GLY GLU LEU HIS GLY LEU THR THR GLU GLU GLU PHE          
SEQRES   6 B  128  VAL GLU GLY ILE TYR LYS VAL GLU ILE ASP THR LYS SER          
SEQRES   7 B  128  TYR TRP LYS ALA LEU GLY ILE SER PRO PHE HIS GLU HIS          
SEQRES   8 B  128  ALA GLU VAL VAL PHE THR ALA ASN ASP SER GLY PRO ARG          
SEQRES   9 B  128  ARG TYR THR ILE ALA ALA LEU LEU SER PRO TYR SER TYR          
SEQRES  10 B  128  SER THR THR ALA VAL VAL THR ASN PRO LYS GLU                  
HET     CL  A 301       1                                                       
HET     CL  A 302       1                                                       
HET     CL  A 306       1                                                       
HET     CL  B 303       1                                                       
HET     CL  B 304       1                                                       
HET     CL  B 305       1                                                       
HETNAM      CL CHLORIDE ION                                                     
FORMUL   3   CL    6(CL 1-)                                                     
FORMUL   9  HOH   *136(H2 O)                                                    
HELIX    1   1 ASP A   74  ALA A   81  1                                   8    
HELIX    2   2 ASP B   74  LEU B   82  1                                   9    
SHEET    1   A 8 SER A  23  PRO A  24  0                                        
SHEET    2   A 8 LEU A  12  ASP A  18 -1  N  ASP A  18   O  SER A  23           
SHEET    3   A 8 ARG A 104  SER A 112  1  O  LEU A 111   N  LEU A  17           
SHEET    4   A 8 SER A 115  THR A 123 -1  O  THR A 119   N  ALA A 108           
SHEET    5   A 8 SER B 115  THR B 123 -1  O  TYR B 116   N  THR A 118           
SHEET    6   A 8 ARG B 104  SER B 112 -1  N  ALA B 108   O  THR B 119           
SHEET    7   A 8 LEU B  12  ASP B  18  1  N  MET B  13   O  ILE B 107           
SHEET    8   A 8 SER B  23  PRO B  24 -1  O  SER B  23   N  ASP B  18           
SHEET    1   B 8 GLU A  54  LEU A  55  0                                        
SHEET    2   B 8 LEU A  12  ASP A  18 -1  N  VAL A  14   O  LEU A  55           
SHEET    3   B 8 ARG A 104  SER A 112  1  O  LEU A 111   N  LEU A  17           
SHEET    4   B 8 SER A 115  THR A 123 -1  O  THR A 119   N  ALA A 108           
SHEET    5   B 8 SER B 115  THR B 123 -1  O  TYR B 116   N  THR A 118           
SHEET    6   B 8 ARG B 104  SER B 112 -1  N  ALA B 108   O  THR B 119           
SHEET    7   B 8 LEU B  12  ASP B  18  1  N  MET B  13   O  ILE B 107           
SHEET    8   B 8 GLU B  54  LEU B  55 -1  O  LEU B  55   N  VAL B  14           
SHEET    1   C 8 TRP A  41  LYS A  48  0                                        
SHEET    2   C 8 ALA A  29  LYS A  35 -1  N  VAL A  32   O  PHE A  44           
SHEET    3   C 8 GLY A  67  ILE A  73 -1  O  GLU A  72   N  HIS A  31           
SHEET    4   C 8 HIS A  88  ALA A  97 -1  O  PHE A  95   N  TYR A  69           
SHEET    5   C 8 HIS B  88  ALA B  97 -1  O  GLU B  89   N  VAL A  94           
SHEET    6   C 8 GLY B  67  ILE B  73 -1  N  TYR B  69   O  PHE B  95           
SHEET    7   C 8 ALA B  29  LYS B  35 -1  N  HIS B  31   O  GLU B  72           
SHEET    8   C 8 TRP B  41  LYS B  48 -1  O  ALA B  45   N  VAL B  32           
SITE     1 AC1  3 SER A 117  THR A 118  THR A 119                               
SITE     1 AC2  2 LYS A  15  VAL A 121                                          
SITE     1 AC3  2 HIS B  90  HOH B 327                                          
SITE     1 AC4  3 SER B 117  THR B 118  THR B 119                               
SITE     1 AC5  1 LYS B  15                                                     
SITE     1 AC6  2 HIS A  90  LYS B  35                                          
CRYST1   42.659   85.587   63.490  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      0.023442  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.011684  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015751        0.00000