AS2TS intermediate model information! 

MOLECULE  1a0p_A  
HEADER    DNA RECOMBINATION                       05-DEC-97   1A0P               
TITLE     SITE-SPECIFIC RECOMBINASE, XERD                                        
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: SITE-SPECIFIC RECOMBINASE XERD;                             
COMPND   3 CHAIN: A;                                                             
COMPND   4 ENGINEERED: YES                                                       
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                                
SOURCE   3 ORGANISM_TAXID: 562;                                                  
SOURCE   4 CELL_LINE: 293;                                                       
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                  
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                         
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: DS9009                                      
KEYWDS    XERD, RECOMBINASE, DNA BINDING, DNA RECOMBINATION                      
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    H.S.SUBRAMANYA,L.K.ARCISZEWSKA,R.A.BAKER,L.E.BIRD,                     
AUTHOR   2 D.J.SHERRATT,D.B.WIGLEY                                               
REVDAT   2   24-FEB-09 1A0P    1       VERSN                                     
REVDAT   1   18-MAR-98 1A0P    0                                                 
JRNL        AUTH   H.S.SUBRAMANYA,L.K.ARCISZEWSKA,R.A.BAKER,L.E.BIRD,            
JRNL        AUTH 2 D.J.SHERRATT,D.B.WIGLEY                                       
JRNL        TITL   CRYSTAL STRUCTURE OF THE SITE-SPECIFIC                        
JRNL        TITL 2 RECOMBINASE, XERD.                                            
JRNL        REF    EMBO J.                       V.  16  5178 1997               
JRNL        REFN                   ISSN 0261-4189                                
JRNL        PMID   9311978                                                       
JRNL        DOI    10.1093/EMBOJ/16.17.5178                                      
REMARK   2 RESOLUTION.    2.50 ANGSTROMS.                                        
DBREF  1A0P A    3   292  UNP    P0A8P8   XERD_ECOLI       3    292              
SEQRES   1 A  290  GLN ASP LEU ALA ARG ILE GLU GLN PHE LEU ASP ALA LEU           
SEQRES   2 A  290  TRP LEU GLU LYS ASN LEU ALA GLU ASN THR LEU ASN ALA           
SEQRES   3 A  290  TYR ARG ARG ASP LEU SER MET MET VAL GLU TRP LEU HIS           
SEQRES   4 A  290  HIS ARG GLY LEU THR LEU ALA THR ALA GLN SER ASP ASP           
SEQRES   5 A  290  LEU GLN ALA LEU LEU ALA GLU ARG LEU GLU GLY GLY TYR           
SEQRES   6 A  290  LYS ALA THR SER SER ALA ARG LEU LEU SER ALA VAL ARG           
SEQRES   7 A  290  ARG LEU PHE GLN TYR LEU TYR ARG GLU LYS PHE ARG GLU           
SEQRES   8 A  290  ASP ASP PRO SER ALA HIS LEU ALA SER PRO LYS LEU PRO           
SEQRES   9 A  290  GLN ARG LEU PRO LYS ASP LEU SER GLU ALA GLN VAL GLU           
SEQRES  10 A  290  ARG LEU LEU GLN ALA PRO LEU ILE ASP GLN PRO LEU GLU           
SEQRES  11 A  290  LEU ARG ASP LYS ALA MET LEU GLU VAL LEU TYR ALA THR           
SEQRES  12 A  290  GLY LEU ARG VAL SER GLU LEU VAL GLY LEU THR MET SER           
SEQRES  13 A  290  ASP ILE SER LEU ARG GLN GLY VAL VAL ARG VAL ILE GLY           
SEQRES  14 A  290  LYS GLY ASN LYS GLU ARG LEU VAL PRO LEU GLY GLU GLU           
SEQRES  15 A  290  ALA VAL TYR TRP LEU GLU THR TYR LEU GLU HIS GLY ARG           
SEQRES  16 A  290  PRO TRP LEU LEU ASN GLY VAL SER ILE ASP VAL LEU PHE           
SEQRES  17 A  290  PRO SER GLN ARG ALA GLN GLN MET THR ARG GLN THR PHE           
SEQRES  18 A  290  TRP HIS ARG ILE LYS HIS TYR ALA VAL LEU ALA GLY ILE           
SEQRES  19 A  290  ASP SER GLU LYS LEU SER PRO HIS VAL LEU ARG HIS ALA           
SEQRES  20 A  290  PHE ALA THR HIS LEU LEU ASN HIS GLY ALA ASP LEU ARG           
SEQRES  21 A  290  VAL VAL GLN MET LEU LEU GLY HIS SER ASP LEU SER THR           
SEQRES  22 A  290  THR GLN ILE TYR THR HIS VAL ALA THR GLU ARG LEU ARG           
SEQRES  23 A  290  GLN LEU HIS GLN                                               
FORMUL   2  HOH   *105(H2 O)                                                     
CRYST1  102.950  102.950   55.900  90.00  90.00 120.00 P 65          6           
END  

FATAL: There is no PDB entry  ( 1a0p_A ) in the database!