TABLE 3.

Antimicrobial activity of Python bivittatus cathelicidin-derived peptides against bacterial strains

Strains	MIC (μg/ml)
	Pb-CATH1	Pb-CATH3	Pb-CATH4	Ampicillin	Gentamicin
Gram-negative bacteria
E. coli ATCC 25922	2	3	1	1	0.5
P. aeruginosa ATCC 27853	3	8	3	>128	0.25
S. typhimurium ATCC 14028	1.5	2	0.5	1	0.375
Gram-positive bacteria
S. aureus ATCC 29213	>128	>128	>128	0.1	0.1
B. cereus ATCC 10876	46	32	10	16	0.25
Clinical isolates
E. coli	NDa	ND	4.7	>64	>64
K. pneumoniae	ND	ND	1.18	32	16

^aND, not determined.