AS2TS intermediate model information! 

MOLECULE  1tfr_A  
HEADER    HYDROLASE                               27-APR-96   1TFR               
TITLE     RNASE H FROM BACTERIOPHAGE T4                                          
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: T4 RNASE H;                                                 
COMPND   3 CHAIN: A;                                                             
COMPND   4 SYNONYM: T4 5U TO 3U EXONUCLEASE;                                     
COMPND   5 EC: 3.1.26.4;                                                         
COMPND   6 ENGINEERED: YES;                                                      
COMPND   7 OTHER_DETAILS: TWO OCTAHEDRALLY-COORDINATED MG2+ IONS IN              
COMPND   8 ACTIVE SITE                                                           
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: ENTEROBACTERIA PHAGE T4;                         
SOURCE   3 ORGANISM_TAXID: 10665;                                                
SOURCE   4 STRAIN: T4D;                                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                  
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                         
SOURCE   7 EXPRESSION_SYSTEM_GENE: T4RNH                                         
KEYWDS    5U-3U EXONUCLEASE, RNA:RNA, DNA:DNA, METAL-DEPENDENT,                  
KEYWDS   2 MAGNESIUM-CONTAINING, HYDROLASE (NUCLEIC ACID)                        
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    T.C.MUESER,N.G.NOSSAL,C.C.HYDE                                         
REVDAT   2   24-FEB-09 1TFR    1       VERSN                                     
REVDAT   1   08-NOV-96 1TFR    0                                                 
JRNL        AUTH   T.C.MUESER,N.G.NOSSAL,C.C.HYDE                                
JRNL        TITL   STRUCTURE OF BACTERIOPHAGE T4 RNASE H, A 5' TO 3'             
JRNL        TITL 2 RNA-DNA AND DNA-DNA EXONUCLEASE WITH SEQUENCE                 
JRNL        TITL 3 SIMILARITY TO THE RAD2 FAMILY OF EUKARYOTIC                   
JRNL        TITL 4 PROTEINS.                                                     
JRNL        REF    CELL(CAMBRIDGE,MASS.)         V.  85  1101 1996               
JRNL        REFN                   ISSN 0092-8674                                
JRNL        PMID   8674116                                                       
JRNL        DOI    10.1016/S0092-8674(00)81310-0                                 
REMARK   2 RESOLUTION.    2.06 ANGSTROMS.                                        
DBREF  1TFR A    1   305  UNP    P13319   RNH_BPT4         1    305              
SEQRES   1 A  305  MET ASP LEU GLU MET MET LEU ASP GLU ASP TYR LYS GLU           
SEQRES   2 A  305  GLY ILE CYS LEU ILE ASP PHE SER GLN ILE ALA LEU SER           
SEQRES   3 A  305  THR ALA LEU VAL ASN PHE PRO ASP LYS GLU LYS ILE ASN           
SEQRES   4 A  305  LEU SER MET VAL ARG HIS LEU ILE LEU ASN SER ILE LYS           
SEQRES   5 A  305  PHE ASN VAL LYS LYS ALA LYS THR LEU GLY TYR THR LYS           
SEQRES   6 A  305  ILE VAL LEU CYS ILE ASP ASN ALA LYS SER GLY TYR TRP           
SEQRES   7 A  305  ARG ARG ASP PHE ALA TYR TYR TYR LYS LYS ASN ARG GLY           
SEQRES   8 A  305  LYS ALA ARG GLU GLU SER THR TRP ASP TRP GLU GLY TYR           
SEQRES   9 A  305  PHE GLU SER SER HIS LYS VAL ILE ASP GLU LEU LYS ALA           
SEQRES  10 A  305  TYR MET PRO TYR ILE VAL MET ASP ILE ASP LYS TYR GLU           
SEQRES  11 A  305  ALA ASP ASP HIS ILE ALA VAL LEU VAL LYS LYS PHE SER           
SEQRES  12 A  305  LEU GLU GLY HIS LYS ILE LEU ILE ILE SER SER ASP GLY           
SEQRES  13 A  305  ASP PHE THR GLN LEU HIS LYS TYR PRO ASN VAL LYS GLN           
SEQRES  14 A  305  TRP SER PRO MET HIS LYS LYS TRP VAL LYS ILE LYS SER           
SEQRES  15 A  305  GLY SER ALA GLU ILE ASP CYS MET THR LYS ILE LEU LYS           
SEQRES  16 A  305  GLY ASP LYS LYS ASP ASN VAL ALA SER VAL LYS VAL ARG           
SEQRES  17 A  305  SER ASP PHE TRP PHE THR ARG VAL GLU GLY GLU ARG THR           
SEQRES  18 A  305  PRO SER MET LYS THR SER ILE VAL GLU ALA ILE ALA ASN           
SEQRES  19 A  305  ASP ARG GLU GLN ALA LYS VAL LEU LEU THR GLU SER GLU           
SEQRES  20 A  305  TYR ASN ARG TYR LYS GLU ASN LEU VAL LEU ILE ASP PHE           
SEQRES  21 A  305  ASP TYR ILE PRO ASP ASN ILE ALA SER ASN ILE VAL ASN           
SEQRES  22 A  305  TYR TYR ASN SER TYR LYS LEU PRO PRO ARG GLY LYS ILE           
SEQRES  23 A  305  TYR SER TYR PHE VAL LYS ALA GLY LEU SER LYS LEU THR           
SEQRES  24 A  305  ASN SER ILE ASN GLU PHE                                       
HET     MG  A 350       1                                                        
HET     MG  A 351       1                                                        
HETNAM      MG MAGNESIUM ION                                                     
FORMUL   2   MG    2(MG 2+)                                                      
FORMUL   4  HOH   *179(H2 O)                                                     
CRYST1   74.470   87.580   54.560  90.00  90.00  90.00 P 21 21 21    4           
END  

FATAL: There is no PDB entry  ( 1tfr_A ) in the database!