MIC values for laspartomycin C position 10 variants.

Compound	AA10	R	MICa
			1 mM Ca2+	10 mM Ca2+
1 (LaspC)	l-Ile		8	2
10	Gly		>64	>64
11	l-Ala		64	8
12	l-Abu		32	8
13	l-Nval		16	4
14	l-Val		8	2
15	l-Phe		16	8

^aMinimum inhibitory concentration reported in μg mL⁻¹ against MRSA USA 300 at the Ca²⁺ concentration indicated. All compounds tested in triplicate.