(b)

Subunit	Positive epitopes	Negative peptides	Positive assays	Negative assays	Neg/pos ratio
α	143	32	895	439	0.49
β	10	0	14	0	0
γ	11	0	28	2	0.07
δ	11	28	20	38	1.9

Listed in the table are the total numbers of epitopes (distinct molecular structure) and then distinct assays captured within the database. By definition this number does not indicate the number of individual epitopes, as each epitope is defined experimentally by one or more assays.