AS2TS intermediate model information! 

MOLECULE  1k4t_A  
HEADER    ISOMERASE/DNA                           08-OCT-01   1K4T               
TITLE     HUMAN DNA TOPOISOMERASE I (70 KDA) IN COMPLEX WITH THE POISON          
TITLE    2 TOPOTECAN AND COVALENT COMPLEX WITH A 22 BASE PAIR DNA DUPLEX         
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: 5'-D(*AP*AP*AP*AP*AP*GP*AP*CP*TP*T)-3';                     
COMPND   3 CHAIN: B;                                                             
COMPND   4 ENGINEERED: YES;                                                      
COMPND   5 MOL_ID: 2;                                                            
COMPND   6 MOLECULE: 5'-D(*(TGP)P*GP*AP*AP*AP*AP*AP*TP*TP*TP*TP*T)-3';           
COMPND   7 CHAIN: C;                                                             
COMPND   8 ENGINEERED: YES;                                                      
COMPND   9 MOL_ID: 3;                                                            
COMPND  10 MOLECULE: 5'-D(*AP*AP*AP*AP*AP*TP*TP*TP*TP*TP*CP*CP*AP*AP*GP*TP*CP*TP 
COMPND  11 *TP*TP*TP*T)-3';                                                      
COMPND  12 CHAIN: D;                                                             
COMPND  13 ENGINEERED: YES;                                                      
COMPND  14 MOL_ID: 4;                                                            
COMPND  15 MOLECULE: DNA TOPOISOMERASE I;                                        
COMPND  16 CHAIN: A;                                                             
COMPND  17 FRAGMENT: CORE DOMAIN AND C-TERMINAL DOMAIN, RESIDUES 174-765;        
COMPND  18 EC: 5.99.1.2;                                                         
COMPND  19 ENGINEERED: YES                                                       
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 SYNTHETIC: YES;                                                       
SOURCE   3 MOL_ID: 2;                                                            
SOURCE   4 SYNTHETIC: YES;                                                       
SOURCE   5 MOL_ID: 3;                                                            
SOURCE   6 SYNTHETIC: YES;                                                       
SOURCE   7 MOL_ID: 4;                                                            
SOURCE   8 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                    
SOURCE   9 ORGANISM_COMMON: HUMAN;                                               
SOURCE  10 ORGANISM_TAXID: 9606;                                                 
SOURCE  11 EXPRESSION_SYSTEM: SPODOPTERA FRUGIPERDA;                             
SOURCE  12 EXPRESSION_SYSTEM_COMMON: FALL ARMYWORM;                              
SOURCE  13 EXPRESSION_SYSTEM_TAXID: 7108;                                        
SOURCE  14 EXPRESSION_SYSTEM_VECTOR_TYPE: BACULOVIRUS;                           
SOURCE  15 EXPRESSION_SYSTEM_VECTOR: PFACTBAC1                                   
KEYWDS    COMPLEX (ISOMERASE-DNA), DNA, TOPOISOMERASE I, DRUG, POISON,           
KEYWDS   2 ISOMERASE-DNA COMPLEX                                                 
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    B.L.STAKER,K.HJERRILD,M.D.FEESE,C.A.BEHNKE,A.B.BURGIN JR.,L.J.STEWART  
REVDAT   3   15-NOV-23 1K4T    1       REMARK SEQADV LINK                        
REVDAT   2   24-FEB-09 1K4T    1       VERSN                                     
REVDAT   1   04-DEC-02 1K4T    0                                                 
JRNL        AUTH   B.L.STAKER,K.HJERRILD,M.D.FEESE,C.A.BEHNKE,A.B.BURGIN JR.,    
JRNL        AUTH 2 L.J.STEWART                                                   
JRNL        TITL   THE MECHANISM OF TOPOISOMERASE I POISONING BY A CAMPTOTHECIN  
JRNL        TITL 2 ANALOG                                                        
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V.  99 15387 2002               
JRNL        REFN                   ISSN 0027-8424                                
JRNL        PMID   12426403                                                      
JRNL        DOI    10.1073/PNAS.242259599                                        
REMARK   2 RESOLUTION.    2.10 ANGSTROMS.                                        
DBREF  1K4T A  174   765  UNP    P11387   TOP1_HUMAN     174    765              
DBREF  1K4T B    1    10  PDB    1K4T     1K4T             1     10              
DBREF  1K4T C   11    22  PDB    1K4T     1K4T            11     22              
DBREF  1K4T D  101   122  PDB    1K4T     1K4T           101    122              
SEQRES   1 B   10   DA  DA  DA  DA  DA  DG  DA  DC  DT  DT                       
SEQRES   1 C   12  TGP  DG  DA  DA  DA  DA  DA  DT  DT  DT  DT  DT               
SEQRES   1 D   22   DA  DA  DA  DA  DA  DT  DT  DT  DT  DT  DC  DC  DA           
SEQRES   2 D   22   DA  DG  DT  DC  DT  DT  DT  DT  DT                           
SEQRES   1 A  592  LYS LYS PRO LYS ASN LYS ASP LYS ASP LYS LYS VAL PRO           
SEQRES   2 A  592  GLU PRO ASP ASN LYS LYS LYS LYS PRO LYS LYS GLU GLU           
SEQRES   3 A  592  GLU GLN LYS TRP LYS TRP TRP GLU GLU GLU ARG TYR PRO           
SEQRES   4 A  592  GLU GLY ILE LYS TRP LYS PHE LEU GLU HIS LYS GLY PRO           
SEQRES   5 A  592  VAL PHE ALA PRO PRO TYR GLU PRO LEU PRO GLU ASN VAL           
SEQRES   6 A  592  LYS PHE TYR TYR ASP GLY LYS VAL MET LYS LEU SER PRO           
SEQRES   7 A  592  LYS ALA GLU GLU VAL ALA THR PHE PHE ALA LYS MET LEU           
SEQRES   8 A  592  ASP HIS GLU TYR THR THR LYS GLU ILE PHE ARG LYS ASN           
SEQRES   9 A  592  PHE PHE LYS ASP TRP ARG LYS GLU MET THR ASN GLU GLU           
SEQRES  10 A  592  LYS ASN ILE ILE THR ASN LEU SER LYS CYS ASP PHE THR           
SEQRES  11 A  592  GLN MET SER GLN TYR PHE LYS ALA GLN THR GLU ALA ARG           
SEQRES  12 A  592  LYS GLN MET SER LYS GLU GLU LYS LEU LYS ILE LYS GLU           
SEQRES  13 A  592  GLU ASN GLU LYS LEU LEU LYS GLU TYR GLY PHE CYS ILE           
SEQRES  14 A  592  MET ASP ASN HIS LYS GLU ARG ILE ALA ASN PHE LYS ILE           
SEQRES  15 A  592  GLU PRO PRO GLY LEU PHE ARG GLY ARG GLY ASN HIS PRO           
SEQRES  16 A  592  LYS MET GLY MET LEU LYS ARG ARG ILE MET PRO GLU ASP           
SEQRES  17 A  592  ILE ILE ILE ASN CYS SER LYS ASP ALA LYS VAL PRO SER           
SEQRES  18 A  592  PRO PRO PRO GLY HIS LYS TRP LYS GLU VAL ARG HIS ASP           
SEQRES  19 A  592  ASN LYS VAL THR TRP LEU VAL SER TRP THR GLU ASN ILE           
SEQRES  20 A  592  GLN GLY SER ILE LYS TYR ILE MET LEU ASN PRO SER SER           
SEQRES  21 A  592  ARG ILE LYS GLY GLU LYS ASP TRP GLN LYS TYR GLU THR           
SEQRES  22 A  592  ALA ARG ARG LEU LYS LYS CYS VAL ASP LYS ILE ARG ASN           
SEQRES  23 A  592  GLN TYR ARG GLU ASP TRP LYS SER LYS GLU MET LYS VAL           
SEQRES  24 A  592  ARG GLN ARG ALA VAL ALA LEU TYR PHE ILE ASP LYS LEU           
SEQRES  25 A  592  ALA LEU ARG ALA GLY ASN GLU LYS GLU GLU GLY GLU THR           
SEQRES  26 A  592  ALA ASP THR VAL GLY CYS CYS SER LEU ARG VAL GLU HIS           
SEQRES  27 A  592  ILE ASN LEU HIS PRO GLU LEU ASP GLY GLN GLU TYR VAL           
SEQRES  28 A  592  VAL GLU PHE ASP PHE LEU GLY LYS ASP SER ILE ARG TYR           
SEQRES  29 A  592  TYR ASN LYS VAL PRO VAL GLU LYS ARG VAL PHE LYS ASN           
SEQRES  30 A  592  LEU GLN LEU PHE MET GLU ASN LYS GLN PRO GLU ASP ASP           
SEQRES  31 A  592  LEU PHE ASP ARG LEU ASN THR GLY ILE LEU ASN LYS HIS           
SEQRES  32 A  592  LEU GLN ASP LEU MET GLU GLY LEU THR ALA LYS VAL PHE           
SEQRES  33 A  592  ARG THR TYR ASN ALA SER ILE THR LEU GLN GLN GLN LEU           
SEQRES  34 A  592  LYS GLU LEU THR ALA PRO ASP GLU ASN ILE PRO ALA LYS           
SEQRES  35 A  592  ILE LEU SER TYR ASN ARG ALA ASN ARG ALA VAL ALA ILE           
SEQRES  36 A  592  LEU CYS ASN HIS GLN ARG ALA PRO PRO LYS THR PHE GLU           
SEQRES  37 A  592  LYS SER MET MET ASN LEU GLN THR LYS ILE ASP ALA LYS           
SEQRES  38 A  592  LYS GLU GLN LEU ALA ASP ALA ARG ARG ASP LEU LYS SER           
SEQRES  39 A  592  ALA LYS ALA ASP ALA LYS VAL MET LYS ASP ALA LYS THR           
SEQRES  40 A  592  LYS LYS VAL VAL GLU SER LYS LYS LYS ALA VAL GLN ARG           
SEQRES  41 A  592  LEU GLU GLU GLN LEU MET LYS LEU GLU VAL GLN ALA THR           
SEQRES  42 A  592  ASP ARG GLU GLU ASN LYS GLN ILE ALA LEU GLY THR SER           
SEQRES  43 A  592  LYS LEU ASN PTR LEU ASP PRO ARG ILE THR VAL ALA TRP           
SEQRES  44 A  592  CYS LYS LYS TRP GLY VAL PRO ILE GLU LYS ILE TYR ASN           
SEQRES  45 A  592  LYS THR GLN ARG GLU LYS PHE ALA TRP ALA ILE ASP MET           
SEQRES  46 A  592  ALA ASP GLU ASP TYR GLU PHE                                   
HET    TGP  C  11      19                                                        
HET    PTR  A 723      16                                                        
HET    TTG  C 991      32                                                        
HET    TTC  D 990      31                                                        
HET     HG  A 900       1                                                        
HET    PG4  A 901      13                                                        
HETNAM     TGP 5'-THIO-2'-DEOXY-GUANOSINE PHOSPHONIC ACID                        
HETNAM     PTR O-PHOSPHOTYROSINE                                                 
HETNAM     TTG 2-(1-DIMETHYLAMINOMETHYL-2-HYDROXY-8-HYDROXYMETHYL-9-             
HETNAM   2 TTG  OXO-9,11-DIHYDRO-INDOLIZINO[1,2-B]QUINOLIN-7-YL)-2-              
HETNAM   3 TTG  HYDROXY-BUTYRIC ACID                                             
HETNAM     TTC (S)-10-[(DIMETHYLAMINO)METHYL]-4-ETHYL-4,9-DIHYDROXY-             
HETNAM   2 TTC  1H-PYRANO[3',4':6,7]INOLIZINO[1,2-B]-QUINOLINE-3,                
HETNAM   3 TTC  14(4H,12H)-DIONE                                                 
HETNAM      HG MERCURY (II) ION                                                  
HETNAM     PG4 TETRAETHYLENE GLYCOL                                              
HETSYN     PTR PHOSPHONOTYROSINE                                                 
HETSYN     TTG HYDROLYZED PRODUCT OF TOPOTECAN                                   
HETSYN     TTC TOPOTECAN, HYCAMTIN                                               
FORMUL   2  TGP    C10 H14 N5 O6 P S                                             
FORMUL   4  PTR    C9 H12 N O6 P                                                 
FORMUL   5  TTG    C23 H25 N3 O6                                                 
FORMUL   6  TTC    C23 H23 N3 O5                                                 
FORMUL   7   HG    HG 2+                                                         
FORMUL   8  PG4    C8 H18 O5                                                     
FORMUL   9  HOH   *227(H2 O)                                                     
CRYST1   57.093  116.260   75.217  90.00  94.16  90.00 P 1 21 1      2           
END  

FATAL: There is no PDB entry  ( 1k4t_A ) in the database!