HEADER    TRANSPORT(THYROXINE)                    12-MAY-93   1ETA              
TITLE     THE X-RAY CRYSTAL STRUCTURE REFINEMENTS OF NORMAL HUMAN TRANSTHYRETIN 
TITLE    2 AND THE AMYLOIDOGENIC VAL 30-->MET VARIANT TO 1.7 ANGSTROMS          
TITLE    3 RESOLUTION                                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TRANSTHYRETIN;                                             
COMPND   3 CHAIN: 1, 2;                                                         
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 TISSUE: SERUM                                                        
KEYWDS    TRANSPORT(THYROXINE)                                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    B.C.BRADEN,L.K.STEINRAUF,J.A.HAMILTON                                 
REVDAT   7   25-DEC-24 1ETA    1       REMARK LINK                              
REVDAT   6   15-NOV-23 1ETA    1       REMARK SEQADV LINK   ATOM                
REVDAT   5   29-NOV-17 1ETA    1       HELIX                                    
REVDAT   4   25-AUG-09 1ETA    1       SOURCE                                   
REVDAT   3   24-FEB-09 1ETA    1       VERSN                                    
REVDAT   2   01-APR-03 1ETA    1       JRNL                                     
REVDAT   1   26-JAN-95 1ETA    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   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   L.K.STEINRAUF,J.A.HAMILTON,B.C.BRADEN,J.R.MURRELL,M.D.BENSON 
REMARK   1  TITL   X-RAY CRYSTAL STRUCTURE OF THE ALA 109-->THR VARIANT OF      
REMARK   1  TITL 2 HUMAN TRANSTHYRETIN WHICH PRODUCES EUTHYROID                 
REMARK   1  TITL 3 HYPERTHYROXINEMIA                                            
REMARK   1  REF    J.BIOL.CHEM.                  V. 268  2425 1993              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   J.A.HAMILTON,L.K.STEINRAUF,J.J.LIEPNIEKS,M.D.BENSON,         
REMARK   1  AUTH 2 G.HOLMGREN,O.SANDGREN,L.STEEN                                
REMARK   1  TITL   ALTERATION IN MOLECULAR STRUCTURE WHICH RESULTS IN DISEASE:  
REMARK   1  TITL 2 THE MET 30 VARIANT OF HUMAN PLASMA TRANSTHYRETIN             
REMARK   1  REF    BIOCHIM.BIOPHYS.ACTA          V. 139     9 1992              
REMARK   1  REFN                   ISSN 0006-3002                               
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) : 0.184                           
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            : 1958                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 48                                      
REMARK   3   SOLVENT ATOMS            : 236                                     
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) : 0.014 ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; 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 DISORDERED SIDE CHAINS OR OF ATOMS WITH              
REMARK   3  LESS THAN UNIT OCCUPANCY WERE SELECTED TO FLATTEN THE               
REMARK   3  FINAL DIFFERENCE FOURIER.                                           
REMARK   3                                                                      
REMARK   3  OCCUPANCIES OF SOLVENT WATER MOLECULES WERE REFINED WITH            
REMARK   3  PROLSQ.                                                             
REMARK   3                                                                      
REMARK   3  OCCUPANCIES OF DISORDERED SIDE CHAINS OR OF ATOMS WITH              
REMARK   3  LESS THAN UNIT OCCUPANCY WERE SELECTED TO FLATTEN THE               
REMARK   3  FINAL DIFFERENCE FOURIER.                                           
REMARK   3                                                                      
REMARK   3  ATOMS WITH OCCUPANCIES OF .001 HAVE NO OBSERVABLE ELECTRON          
REMARK   3  DENSITY.                                                            
REMARK   3                                                                      
REMARK   3  SOME WATER MOLECULES WERE PLACED IN POSITIONS THAT                  
REMARK   3  PROBABLY REPRESENT ALTERNATE CONFORMATIONS.                         
REMARK   4                                                                      
REMARK   4 1ETA 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_1000173156.                                   
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   (%): 45.02                                     
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       21.82000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       43.09000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       21.82000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       43.09000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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: THERE ARE TWO T4 BINDING SITES PER TETRAMER (AA, BB).        
REMARK 300 SITE AA CONTAINS RESIDUES FROM CHAIN 1 AND CHAIN 1* WHERE            
REMARK 300 CHAINS 1 AND 1* ARE RELATED BY CRYSTALLOGRAPHIC TWO-FOLD             
REMARK 300 SYMMETRY.  LIKEWISE, SITE BB CONTAINS RESIDUES FROM CHAIN 2          
REMARK 300 AND CHAIN 2* WHERE CHAINS 2 AND 2* ARE RELATED BY                    
REMARK 300 CRYSTALLOGRAPHIC SYMMETRY.  BECAUSE OF PDB FORMAT                    
REMARK 300 SPECIFICATIONS, ONLY THE RESIDUES FROM CHAIN 1 ARE LISTED            
REMARK 300 FOR SITE AA ON SITE RECORDS BELOW AND ONLY THE RESIDUES              
REMARK 300 FROM CHAIN 2 ARE LISTED FOR SITE BB ON SITE RECORDS BELOW.           
REMARK 300                                                                      
REMARK 300 THE TRANSFORMATION PRESENTED ON *MTRIX* RECORDS BELOW WILL           
REMARK 300 YIELD APPROXIMATE COORDINATES FOR CHAIN 2 WHEN APPLIED TO            
REMARK 300 CHAIN 1.                                                             
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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2520 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 12360 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -10.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: 1, 2                                  
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                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 9640 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 20130 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -34.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: 1, 2                                  
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       43.64000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       86.18000            
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 2 241  LIES ON A SPECIAL POSITION.                          
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
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   NZ   LYS 2    15     C7   T44 2   129              1.56            
REMARK 500   OH   TYR 2   116     O    HOH 2   232              2.13            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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    LYS 1  35   CD    LYS 1  35   CE      0.356                       
REMARK 500    LYS 1  35   CE    LYS 1  35   NZ      1.831                       
REMARK 500    GLU 1  63   CD    GLU 1  63   OE1     0.071                       
REMARK 500    MET 2  30   C     HIS 2  31   N      -0.192                       
REMARK 500    GLU 2  63   CD    GLU 2  63   OE2     0.091                       
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    MET 1  30   CA  -  CB  -  CG  ANGL. DEV. =  11.5 DEGREES          
REMARK 500    MET 1  30   CA  -  C   -  N   ANGL. DEV. = -16.2 DEGREES          
REMARK 500    MET 1  30   O   -  C   -  N   ANGL. DEV. =  12.8 DEGREES          
REMARK 500    ARG 1  34   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.2 DEGREES          
REMARK 500    LYS 1  35   CG  -  CD  -  CE  ANGL. DEV. = -45.2 DEGREES          
REMARK 500    LYS 1  35   CD  -  CE  -  NZ  ANGL. DEV. = -26.0 DEGREES          
REMARK 500    ASP 1  74   CB  -  CG  -  OD1 ANGL. DEV. =  -5.8 DEGREES          
REMARK 500    ASP 1  74   CB  -  CG  -  OD1 ANGL. DEV. =  -6.5 DEGREES          
REMARK 500    ARG 1 104   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    PRO 1 125   N   -  CA  -  C   ANGL. DEV. =  19.2 DEGREES          
REMARK 500    ARG 2  34   CD  -  NE  -  CZ  ANGL. DEV. =   8.8 DEGREES          
REMARK 500    ARG 2  34   NE  -  CZ  -  NH1 ANGL. DEV. =   5.0 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    PRO 1   2     -121.52    -40.64                                   
REMARK 500    THR 1   3      -67.05    147.42                                   
REMARK 500    THR 1   5       22.86    141.50                                   
REMARK 500    GLU 1   7       75.04    176.14                                   
REMARK 500    SER 1   8      -99.97    -48.24                                   
REMARK 500    CYS 1  10       85.87     67.27                                   
REMARK 500    LYS 1 126      123.91     96.64                                   
REMARK 500    PRO 2   2     -116.39    -53.44                                   
REMARK 500    THR 2   3     -166.75    153.25                                   
REMARK 500    GLU 2   7       60.44    142.66                                   
REMARK 500    SER 2   8       39.19    125.77                                   
REMARK 500    ALA 2  37      -59.05    -28.46                                   
REMARK 500    PHE 2  44      -47.47   -137.13                                   
REMARK 500    PRO 2 102      153.82    -49.88                                   
REMARK 500    PRO 2 125     -148.80    -61.51                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    ALA 2  29        -10.27                                           
REMARK 500    MET 2  30        -12.75                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH 1 176        DISTANCE =  6.04 ANGSTROMS                       
REMARK 525    HOH 1 177        DISTANCE =  7.60 ANGSTROMS                       
REMARK 525    HOH 1 179        DISTANCE =  6.83 ANGSTROMS                       
REMARK 525    HOH 1 182        DISTANCE =  9.65 ANGSTROMS                       
REMARK 525    HOH 1 183        DISTANCE =  8.14 ANGSTROMS                       
REMARK 525    HOH 1 196        DISTANCE =  9.55 ANGSTROMS                       
REMARK 525    HOH 1 202        DISTANCE =  7.56 ANGSTROMS                       
REMARK 525    HOH 1 203        DISTANCE =  9.10 ANGSTROMS                       
REMARK 525    HOH 1 204        DISTANCE =  6.53 ANGSTROMS                       
REMARK 525    HOH 1 207        DISTANCE =  7.67 ANGSTROMS                       
REMARK 525    HOH 1 214        DISTANCE =  6.03 ANGSTROMS                       
REMARK 525    HOH 1 223        DISTANCE =  7.95 ANGSTROMS                       
REMARK 525    HOH 1 227        DISTANCE =  7.21 ANGSTROMS                       
REMARK 525    HOH 2 140        DISTANCE =  6.38 ANGSTROMS                       
REMARK 525    HOH 2 142        DISTANCE =  6.82 ANGSTROMS                       
REMARK 525    HOH 2 155        DISTANCE =  6.34 ANGSTROMS                       
REMARK 525    HOH 2 156        DISTANCE =  8.45 ANGSTROMS                       
REMARK 525    HOH 2 157        DISTANCE = 12.95 ANGSTROMS                       
REMARK 525    HOH 2 208        DISTANCE =  8.53 ANGSTROMS                       
REMARK 525    HOH 2 215        DISTANCE =  7.36 ANGSTROMS                       
REMARK 700                                                                      
REMARK 700 SHEET                                                                
REMARK 700 SHEET IDENTIFIERS ARE BASED ON ENTRY 2PAB (PREALBUMIN,               
REMARK 700 BLAKE ET AL.).                                                       
REMARK 700 A SHIFT OF THE CHAIN 1 AND 2 BETA SHEETS AT RESIDUE 30 WAS           
REMARK 700 NECESSARY TO MODEL THE MET SIDE CHAIN.  BETA SHEET MAIN              
REMARK 700 CHAIN CONNECTIVITIES IN THE COORDINATE SET ARE TO THE VAL            
REMARK 700 30 PEPTIDE ATOMS.                                                    
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AA                                                  
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: NULL                                               
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BB                                                  
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: NULL                                               
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE T44 1 128                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE T44 2 129                 
DBREF  1ETA 1    1   127  UNP    P02766   TTHY_HUMAN      21    147             
DBREF  1ETA 2    1   127  UNP    P02766   TTHY_HUMAN      21    147             
SEQADV 1ETA MET 1   30  UNP  P02766    VAL    50 MICROHETEROGENEITY             
SEQADV 1ETA MET 2   30  UNP  P02766    VAL    50 MICROHETEROGENEITY             
SEQRES   1 1  127  GLY PRO THR GLY THR GLY GLU SER LYS CYS PRO LEU MET          
SEQRES   2 1  127  VAL LYS VAL LEU ASP ALA VAL ARG GLY SER PRO ALA ILE          
SEQRES   3 1  127  ASN VAL ALA MET HIS VAL PHE ARG LYS ALA ALA ASP ASP          
SEQRES   4 1  127  THR TRP GLU PRO PHE ALA SER GLY LYS THR SER GLU SER          
SEQRES   5 1  127  GLY GLU LEU HIS GLY LEU THR THR GLU GLU GLU PHE VAL          
SEQRES   6 1  127  GLU GLY ILE TYR LYS VAL GLU ILE ASP THR LYS SER TYR          
SEQRES   7 1  127  TRP LYS ALA LEU GLY ILE SER PRO PHE HIS GLU HIS ALA          
SEQRES   8 1  127  GLU VAL VAL PHE THR ALA ASN ASP SER GLY PRO ARG ARG          
SEQRES   9 1  127  TYR THR ILE ALA ALA LEU LEU SER PRO TYR SER TYR SER          
SEQRES  10 1  127  THR THR ALA VAL VAL THR ASN PRO LYS GLU                      
SEQRES   1 2  127  GLY PRO THR GLY THR GLY GLU SER LYS CYS PRO LEU MET          
SEQRES   2 2  127  VAL LYS VAL LEU ASP ALA VAL ARG GLY SER PRO ALA ILE          
SEQRES   3 2  127  ASN VAL ALA MET HIS VAL PHE ARG LYS ALA ALA ASP ASP          
SEQRES   4 2  127  THR TRP GLU PRO PHE ALA SER GLY LYS THR SER GLU SER          
SEQRES   5 2  127  GLY GLU LEU HIS GLY LEU THR THR GLU GLU GLU PHE VAL          
SEQRES   6 2  127  GLU GLY ILE TYR LYS VAL GLU ILE ASP THR LYS SER TYR          
SEQRES   7 2  127  TRP LYS ALA LEU GLY ILE SER PRO PHE HIS GLU HIS ALA          
SEQRES   8 2  127  GLU VAL VAL PHE THR ALA ASN ASP SER GLY PRO ARG ARG          
SEQRES   9 2  127  TYR THR ILE ALA ALA LEU LEU SER PRO TYR SER TYR SER          
SEQRES  10 2  127  THR THR ALA VAL VAL THR ASN PRO LYS GLU                      
HET    T44  1 128      24                                                       
HET    T44  2 129      24                                                       
HETNAM     T44 3,5,3',5'-TETRAIODO-L-THYRONINE                                  
FORMUL   3  T44    2(C15 H11 I4 N O4)                                           
FORMUL   5  HOH   *236(H2 O)                                                    
HELIX    1 1HX THR 1   75  GLY 1   83  1                                   9    
HELIX    2 2HX THR 2   75  GLY 2   83  1                                   9    
SHEET    1 INT 8 GLY 1  53  HIS 1  56  0                                        
SHEET    2 INT 8 PRO 1  11  ASP 1  18 -1  N  VAL 1  14   O  LEU 1  55           
SHEET    3 INT 8 ARG 1 103  SER 1 112  1  N  ILE 1 107   O  MET 1  13           
SHEET    4 INT 8 SER 1 115  THR 1 123 -1  N  THR 1 119   O  ALA 1 108           
SHEET    5 INT 8 SER 2 115  THR 2 123 -1  N  THR 2 118   O  TYR 1 116           
SHEET    6 INT 8 ARG 2 103  SER 2 112 -1  N  ALA 2 108   O  THR 2 119           
SHEET    7 INT 8 PRO 2  11  ASP 2  18  1  N  MET 2  13   O  ILE 2 107           
SHEET    8 INT 8 GLY 2  53  HIS 2  56 -1  N  LEU 2  55   O  VAL 2  14           
SHEET    1 XIA 4 THR 1  40  GLU 1  42  0                                        
SHEET    2 XIA 4 VAL 1  28  ALA 1  36 -1  N  ARG 1  34   O  GLU 1  42           
SHEET    3 XIA 4 GLU 1  66  ASP 1  74 -1  N  GLU 1  72   O  HIS 1  31           
SHEET    4 XIA 4 HIS 1  90  ALA 1  97 -1  N  VAL 1  93   O  VAL 1  71           
SHEET    1 X2A 4 ALA 1  45  THR 1  49  0                                        
SHEET    2 X2A 4 VAL 1  28  ALA 1  36 -1  N  MET 1  30   O  GLY 1  47           
SHEET    3 X2A 4 GLU 1  66  ASP 1  74 -1  N  GLU 1  72   O  HIS 1  31           
SHEET    4 X2A 4 HIS 1  90  ALA 1  97 -1  N  VAL 1  93   O  VAL 1  71           
SHEET    1 X1B 4 THR 2  40  GLU 2  42  0                                        
SHEET    2 X1B 4 VAL 2  28  ALA 2  36 -1  N  ARG 2  34   O  GLU 2  42           
SHEET    3 X1B 4 GLU 2  66  ASP 2  74 -1  N  GLU 2  72   O  HIS 2  31           
SHEET    4 X1B 4 HIS 2  90  ALA 2  97 -1  N  VAL 2  93   O  VAL 2  71           
SHEET    1 X2B 4 ALA 2  45  THR 2  49  0                                        
SHEET    2 X2B 4 VAL 2  28  ALA 2  36 -1  N  MET 2  30   O  GLY 2  47           
SHEET    3 X2B 4 GLU 2  66  ASP 2  74 -1  N  GLU 2  72   O  HIS 2  31           
SHEET    4 X2B 4 HIS 2  90  ALA 2  97 -1  N  VAL 2  93   O  VAL 2  71           
SITE     1  AA  7 LYS 1  15  GLU 1  54  LEU 1  17  ALA 1 108                    
SITE     2  AA  7 ALA 1 109  LEU 1 110  SER 1 117                               
SITE     1  BB  7 LYS 2  15  GLU 2  54  LEU 2  17  ALA 2 108                    
SITE     2  BB  7 ALA 2 109  LEU 2 110  SER 2 117                               
SITE     1 AC1  7 LYS 1  15  LEU 1  17  GLU 1  54  ALA 1 108                    
SITE     2 AC1  7 ALA 1 109  LEU 1 110  HOH 1 250                               
SITE     1 AC2  8 LYS 2  15  LEU 2  17  GLU 2  54  ALA 2 108                    
SITE     2 AC2  8 ALA 2 109  LEU 2 110  HOH 2 210  HOH 2 239                    
CRYST1   43.640   86.180   65.600  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      0.022915  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.011604  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015244        0.00000                         
MTRIX1   1 -0.988600  0.150800 -0.000400       36.75100    1                    
MTRIX2   1  0.150800  0.988600 -0.004900       -2.55000    1                    
MTRIX3   1 -0.000400 -0.004900 -0.999900       98.39000    1