has part primosome complex DnaA-oriC complex DnaA-DiaA complex cellular_component GO:1990102 DnaA-DiaA-DNA complex bhm 2013-05-14T12:33:59Z A protein-DNA complex containing a tetramer of DiaA attached to multiple DnaA molecule bound to oriC DNA. Regulates timely initiation of chromosomal replication during the cell cycle by stimulating assembly of DnaA-oriC complexes, conformational changes in ATP-DnaA initiation complexes, and unwinding of oriC duplex DNA. DiaA complex