TABLE 1.

Various mono (+1) and di (+2) Na-bound species of gramicidin and their expected monoisotopic nominal masses

Species	Charge	Monoisotopic nominal m/z	Charge	Monoisotopic nominal m/z
Gramicidin A (GA)	1+	1904	2+	963.5
Gramicidin B (GB)	1+	1865	2+	944
Gramicidin C (GC)	1+	1881	2+	952
Isoleucine-gramicidin A (IGA)	1+	1918	2+	970.5
Homodimer GA	1+	3785	2+	1904
Heterodimer, GA/IGA	1+	3799	2+	1911
Heterodimer GA/GC	1+	3762	2+	1892.5