Table 1. Secondary structure content estimated from far-UV CD spectra and predicted from sequence analysis or derived from the crystal structure [19,20].

	% α-helix, % β-sheet estimation from the CD analysis	% α-helix, % β-sheet in the crystal structure	predicted % α-helix, % β-sheet
CagA-N	58, 10	61, 0	-
CagA-Ma	29, 15	-	41, 9
CagA-Mc	31, 11	39, 10	-
CagA-R	6, 39	-	27, 7

^a Values predicted from sequence analysis rather than the crystal structure are shown as approximately 16% of the CagA-M region was not visible in the electron density maps.