Table 1.

Infectiviy of mutant 16PVs

	L1 in PV stock		Infectious units
	ng of L1/μl	%	units/μg of L1	%	SD
WT	82.0	100	1.77.E+05	100	17.5
C102A	29.3	35.7	1.05.E+05	59.3	1.40
C146A	54.9	66.9	1.64.E+05	92.4	3.37
C157A	3.46	4.22	8.60.E+04	48.1	2.04
C161A	ND	-	NT	-	-
C185A	33.8	41.2	1.62.E+05	91.4	3.86
C225A	81.2	99.0	2.82.E+05	159	4.46
C229A	8.53	10.4	9.60.E+04	54.6	5.59
C324A	5.85	7.14	8.50.E+04	50.2	2.47
C345A	44.3	54.0	3.30.E+05	187	4.03
C379A	13.1	16.0	1.62.E+05	91.4	4.43

ND: not detected NT: not tested