n silico, docking studies were carried out using iGemdock v2.1. The results showed that all the selected flavonoids presented more favorable binding energy ranging from −135.76 kcal/mol to −103.82 kcal/mol when compared to that of the reference (−90.26 kcal/mol). Therefore, these molecular docking analyses could lead to further development of potent (Kas I) inhibitors for the prevention and treatment for diseases caused by E. coli. Table 2 summarizes results of the docking study based on binding energies. The energy, representing the best binding energy of inhibitors of this enzyme, was identified by the molecular docking procedure. In addition, Fig. 3 shows the TLM mimics malonyl-ACP in the (Kas I) active site and binds on the malonyl-ACP side of the active site. It forms two strong hydrogen bonds with both active site histidines His333 and His298 contribute to the stabilization of the protein-inhibitor complex. Also, Fig. 4 illustrates the interactions of genistein and isorhamnetin with protein pocket which have the most favorable binding energy and clarifies the hydrogen bonding and Van der Waal’s interactions with the amino acids