TABLE 1.

Levels of synthesis and stability of Gag and Pol proteins^d

Virus	Pol		Gag		Gag/Polc
	Expressiona	Stabilityb	Expression	Stability
IN-	1.00	0.99	1.00	0.59	1.0
GR3st	0.64	1.30	1.27	0.44	2.0
GR2st	0.15	0.95	0.63	0.62	4.2
GR1st	0.32	1.01	0.80	0.42	2.5
GR(-)st	0.13	1.19	0.77	0.40	5.9

^aExpression levels were calculated from the time zero points in Fig. 4, relative to that for the IN- mutant.

^bStability levels were calculated by comparing the protein level at 8 h relative to that at 0 h for each mutant.

^cRatios were determined from the time zero points.

^dResults are the averages of three experiments.