TABLE 2.

FT-IR vibrational peak assignment in response to carbazomycin B treatment.

Definition of the spectral assignment	Classification	Peak variation (cm–1)
		Control	1 × MIC	2 × MIC
C-O, C-C str, C-O-H, C-O-C def of carbohydrates	Glycogen and nucleic acids	1064.24	1068.79	1081.48
P = O str (asym) of > PO2 phosphodiesters	Mainly nucleic acids	1234.36	1236.82	1237.94
C = O str (sym) of COO	amino acid side chains, fatty acids	1388.36	1389.18	1390.14
Amide II (protein N–H bend, C–N stretch)	α helices	1528.37	1533.94	1543.78
Amide I of β-pleated sheet structures	β-pleated sheet	1636.55	1647.42	1648.15
C-H str (asym) of > CH2	Mainly lipids	2929.72	2933.88	2935.29
O-H str of hydroxyl groups	Polysaccharides, proteins	3278.44	3283.42	3287.68

Str, stretching; def, deformation; sym, symmetric; asym, antisymmetric.