Table 5.

The binding affinity of selected compounds against microbial proteins.

Ligands	Dihydropteroate synthase (kcal/mol)	Penicillin binding protein (kcal/mol)	Elongation factor EF-Tu (kcal/mol)
Kaempferol	− 8.0	− 7.9	− 6.1
Germacrene A	− 7.2	− 7.1	− 6.2
Elatine	− 8.5	− 9.2	− 8.2

Antifungal proteins
	1,3 β-glycan (kcal/mol)	ABC transporter (kcal/mol)	Beta-tubulin (kcal/mol)
Kaempferol	− 6.7	− 7.3	− 7.1
Germacrene A	− 7.7	− 8.7	− 8.1
Elatine	− 6.7	− 6.9	− 8.8