Table 4. Infectivity of recombinant HET-s(218-289) F286A and W287 fibrils.

Amount of protein	[Het-s]-infected strains over total tested strains
no protein	1/96
HET-s(218–289) wt
250 µM	63/96
50 µM	15/72
10 µM	1/48
2 µM	0/24
HET-s(218–289) F286A
250 µM	69/96
50 µM	25/72
10 µM	5/48
2 µM	0/24
HET-s(218–289) W287A
250 µM	68/96
50 µM	12/72
10 µM	2/48
2 µM	0/24