AS2TS intermediate model information! 

MOLECULE  1a6f_A  
HEADER    ENDONUCLEASE                            24-FEB-98   1A6F               
TITLE     RNASE P PROTEIN FROM BACILLUS SUBTILIS                                 
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: RIBONUCLEASE P PROTEIN;                                     
COMPND   3 CHAIN: A;                                                             
COMPND   4 SYNONYM: RNASE P PROTEIN;                                             
COMPND   5 EC: 3.1.26.5;                                                         
COMPND   6 ENGINEERED: YES;                                                      
COMPND   7 MUTATION: YES                                                         
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: BACILLUS SUBTILIS;                               
SOURCE   3 ORGANISM_TAXID: 1423;                                                 
SOURCE   4 CELL_LINE: BL21;                                                      
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                  
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                         
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3) PLYSS;                           
SOURCE   8 EXPRESSION_SYSTEM_VECTOR: PET;                                        
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: BL21                                       
KEYWDS    ENDONUCLEASE, RNASE, SUBUNIT                                           
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    T.STAMS,D.W.CHRISTIANSON                                               
REVDAT   4   16-NOV-11 1A6F    1       HETATM                                    
REVDAT   3   13-JUL-11 1A6F    1       VERSN                                     
REVDAT   2   24-FEB-09 1A6F    1       VERSN                                     
REVDAT   1   23-MAR-99 1A6F    0                                                 
JRNL        AUTH   T.STAMS,S.NIRANJANAKUMARI,C.A.FIERKE,D.W.CHRISTIANSON         
JRNL        TITL   RIBONUCLEASE P PROTEIN STRUCTURE: EVOLUTIONARY ORIGINS IN     
JRNL        TITL 2 THE TRANSLATIONAL APPARATUS.                                  
JRNL        REF    SCIENCE                       V. 280   752 1998               
JRNL        REFN                   ISSN 0036-8075                                
JRNL        PMID   9563955                                                       
JRNL        DOI    10.1126/SCIENCE.280.5364.752                                  
REMARK   2 RESOLUTION.    2.60 ANGSTROMS.                                        
DBREF  1A6F A    5   119  UNP    P25814   RNPA_BACSU       2    116              
SEQRES   1 A  119  MET ALA HIS LEU LYS LYS ARG ASN ARG LEU LYS LYS ASN           
SEQRES   2 A  119  GLU ASP PHE GLN LYS VAL PHE LYS HIS GLY THR SER VAL           
SEQRES   3 A  119  ALA ASN ARG GLN PHE VAL LEU TYR THR LEU ASP GLN PRO           
SEQRES   4 A  119  GLU ASN ASP GLU LEU ARG VAL GLY LEU SER VAL SER LYS           
SEQRES   5 A  119  LYS ILE GLY ASN ALA VAL MET ARG ASN ARG ILE LYS ARG           
SEQRES   6 A  119  LEU ILE ARG GLN ALA PHE LEU GLU GLU LYS GLU ARG LEU           
SEQRES   7 A  119  LYS GLU LYS ASP TYR ILE ILE ILE ALA ARG LYS PRO ALA           
SEQRES   8 A  119  SER GLN LEU THR TYR GLU GLU THR LYS LYS SER LEU GLN           
SEQRES   9 A  119  HIS LEU PHE ARG LYS SER SER LEU TYR LYS LYS SER SER           
SEQRES  10 A  119  SER LYS                                                       
HET     ZN  A 201       1                                                        
HET     ZN  A 202       1                                                        
HET    SO4  A 401       5                                                        
HETNAM      ZN ZINC ION                                                          
HETNAM     SO4 SULFATE ION                                                       
FORMUL   2   ZN    2(ZN 2+)                                                      
FORMUL   4  SO4    O4 S 2-                                                       
FORMUL   5  HOH   *10(H2 O)                                                      
CRYST1   82.400   82.400   33.500  90.00  90.00 120.00 P 64          6           
END  

FATAL: There is no PDB entry  ( 1a6f_A ) in the database!