HEADER    TRANSCRIPTION                           
COMPND    MOL_ID: 1;                                                  
COMPND   2 MOLECULE: SIGMA FACTOR SIGA;                               
COMPND   3 CHAIN: A, B;                                               
COMPND   4 FRAGMENT: RESIDUES 92-332;                                 
COMPND   5 ENGINEERED: YES                                            
SOURCE    MOL_ID: 1;                                                  
SOURCE   2 ORGANISM_SCIENTIFIC: THERMUS AQUATICUS;                    
SOURCE   3 ORGANISM_COMMON: BACTERIA;                                 
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                       
SOURCE   5 EXPRESSION_SYSTEM_COMMON: BACTERIA;                        
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                       
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                    
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET21A                          
RESOLUTION  SOURCE               : NSLS                       
AUTHOR    E.A.CAMPBELL,O.MUZZIN,M.CHLENOV,J.L.SUN,C.A.OLSON,O.WEINMAN,
AUTHOR   2 M.L.TRESTER-ZEDLITZ,S.A.DARST                              
RESOLUTION     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-      
EXPDTA    X-RAY DIFFRACTION                                           
JRNL        AUTH   E.A.CAMPBELL,O.MUZZIN,M.CHLENOV,J.L.SUN,C.A.OLSON, 
JRNL        AUTH 2 O.WEINMAN,M.L.TRESTER-ZEDLITZ,S.A.DARST            
JRNL        TITL   STRUCTURE OF THE BACTERIAL RNA POLYMERASE PROMOTER 
JRNL        TITL 2 SPECIFICITY SIGMA SUBUNIT                          
JRNL        REF    MOL. CELL                     V.   9   527 2002    
JRNL        REFN   ASTM MOCEFL  US ISSN 1097-2765                     
RESOLUTION   2.90 ANGSTROMS.                                  



 Sequence in PIR format: 
>P1;1ku2A
 structureX:1ku2A:  93 :A: 332 :A:sigma factor siga:thermus aquaticus: 9.99: 9.99
 SDPVRQYLHEIGQVPLLTLEEEIDLARKVEEGMEAIKKLSEATGLDQELIREVVRAKILGTARIQKIPGLKEKPD
 PKTVEEVDGKLKSLPKELKRYLHIAREGEAARQHLIEANLRLVVSIAKKYTGRGLSFLDLIQEGNQGLIRAVEKF
 EYKRRFKFSTYATWWIRQAINRAIADQARTIRIPVHMVETINKLSRTARQLQQELGREPSYEEIAEAMGPGWDAK
 RVEETLKIAQEPVSL*




 View SSTRUC file for 1ku2A 
 Rasmol View of  1ku2A