Isolation and Characterization of a Defensin-Like Peptide (Coprisin) from the Dung Beetle, Copris tripartitus

Table 1

The antimicrobial activity of Coprisin peptides against E. coli and S. aureus.

Peptides	Amino acid sequence	MIC (𝜇g/mL)
		E. coli	S. aureus
CopN5(22–30)	LHCIALRKK-NH2	8–16	>64
CopA1	LHLIALRKK-NH2 (C^24→L^24)	>64	>64
CopA2	LHRIALRKK-NH2 (C^24→R^24)	>64	>64
CopA3	LLCIALRKK-NH2 (H^23→L^23)	4–8	4–8
CopA4	LRCIALRKK-NH2 (H^24→R^24)	16–32	>64