S. Sasaki et al., 3-ACETOXY-2,2'-BI-1H-INDOL AS A NOVEL INHIBITOR OF ATP BINDING TO DNAA, THE PROTEIN INITIATING CHROMOSOMAL REPLICATION IN ESCHERICHIA-COLI, Bioorganic & medicinal chemistry letters, 4(14), 1994, pp. 1771-1774
3-Acetoxy-2,2'-bi-1H-indol which is derived from indigo was found to b
e a novel and potent inhibitor of ATP binding (IC50=0.04mM) to DnaA pr
otein, a key protein in the initiation of chromosomal DNA replication
in Escherichia coli. Competitive experiments indicated the inhibition
to be non-competitive with ATP.