TABLE 4.

Effects of MgCl₂ on MICs of halocidin congeners, P18, and melittin for MRSA and MDRPA

Peptide	MIC (μg/ml)
	MRSAa at MgCl2 concn (mM) of:				MDRPAb at MgCl2 concn (mM) of:
	0	1	3	5	0	1	3	5
di-18Hc	2-4	8-16	16-32	16-32	2-4	16-32	>64	>64
di-18HcKK	4-8	4-8	16-32	16-32	2-4	4-8	>64	>64
di-K19Hc	2-4	2-4	4-8	4-8	2-4	4-8	8-16	8-16
di-K19HcKK	2-4	4-8	8-16	8-16	2-4	2-4	8-16	16-32
P18	16-32	16-32	32-64	>64	1-2	1-2	8-16	16-32
Melittin	1-2	16-32	16-32	16-32	2-4	8-16	>64	>64

^aS. aureus CCARM3570.

^bP. aeruginosa CCARM2109.