TABLE 3.

Proportion of P5, the amber fragment of P5 (P5^*), P2, and P31 in mutant virus particles compared to the wt particle^a

Phage strainb	Proportion of:
	P5	P5*	P2	P31
wt	1		1	1
sus690	0.02		0.02	1
Phages expressing fragments of P5
sus691 (149)	0.01	0.1	0.05	1
sus692 (183)	0.01	0.01	0.01	1
sus693 (203)	0.01	0.1	0.01	1

^aThe amounts of the proteins were estimated from three independent Western blots of serial dilutions of the virus samples, as shown in Fig. 1. 

^bThe length of the P5 N-terminal fragments (in amino acids) is given in parentheses.