TABLE 3.

Genotypes and phenotypes of mutant viruses

Virus name	CAAT box	UPE	TATA box	Viral growtha	RNA levelb
Wild type	+	+	+	Wild type	Wild type
TATA27	+	+	Mutant	Wild type	Wild typec
USF0	+	Mutant	+	Wild type	Wild typec
vBS4	Mutant	+	+	Wild type	Wild type
vBS5	Mutant	Mutant	+	20× lower	6× lower
vBS1	ATF	+	+	Wild type	NDd
vBS2	ATF	Mutant	+	3× lower	ND
vBS6	OCT1	+	+	Wild type	ND
vBS8	OCT1	Mutant	+	10× lower	ND
[vBS10]	Mutant	+	Mutant	Lethal	ND

^aMeasured in one-step growth curves; the values are for final yields at 40 h p.i. 

^bmRNA production was measured by nuclear run-on assays or RNase protection assays. 

^cDetermined by Reach et al. (36, 37). 

^dND, not determined.