Sequence alignment of FabI from Candidatus Liberibacter asiaticus (ClFabI), Aquifex aeolicus VF5 (AaFabI), Bartonella henselae (BhFabI), Escherichia coli (EcFabI), Brucella melitensis (BmFabI), Staphylococcus aureus (SaFabI), Anaplasma phagocytophilum (ApFabI), Thermus thermophilus (TtFabI), Bacillus cereus (BaFabI), and Francisella tularensis (FtFabI). The residues in bold red are strictly conserved, whereas the residues in light red are relatively conserved. Secondary structures of ClFabI in this study are depicted above the sequence.