Table 2.

Percentages of pre-TMDs containing at least one amino acid (C, G, W, F, S, Y) or a motif for Coronaviridae and for other viruses (n - total number of proteins).

preTMD	N	C	G	W	F	S	Y	GxxxG	QxxS	FxxGxxxG	FxxS	WxxF
Coronaviridae	15	6.7	100.0	53.3	53.3	13.3	73.3	0.0	0.0	0.0	0.0	0.0
other viruses	424	12.5	43.6	21.0	29.7	59.2	35.6	2.6	1.7	0.0	3.5	0.5