TABLE 2.

Effects of D247G mutant of BLV Tax on the characteristics of BLV^a

Experiment setting	Characteristic	Wild-type Tax	D247G Tax
In vitro	Transactivation of BLV LTR	+	+++
	Expression of viral proteins	+	+++
	Secretion of viral particles	+	+++
	Propagation of virus	+	+++
In vivo	Propagation of virus	+	+
	Expression of viral RNA	+	+

^a+, normal (wild type); +++, enhanced.