Table 1.

Similarity matrix showing percentage identity between the mature protease forms of the house dust mite (HDM) group 1 allergens from Dermatophagoides and Euroglyphus species and cathepsin (cat) family members.

	Der p 1	Der f 1	Eur m 1	cat B	cat K	cat L2	cat S	cat Z
Der p 1	100	82	85	25	34	31	31	25
Der f 1	82	100	85	26	34	33	30	27
Eur m 1	85	85	100	25	34	32	30	25
cat B	25	26	25	100	28	30	33	24
cat K	34	34	34	28	100	59	58	28
cat L2	31	33	32	30	59	100	58	30
cat S	31	30	30	33	58	58	100	31
cat Z	25	27	25	24	28	30	31	100