Table 2. U5 snRNA loop 1 intragenic suppressors.

Loop 1 sequence	Growth
	16°C	30°C	37°C
CGUUAGC (U5-1)	+	+	–
CGUUAUCa	+	+	+
UUUUUGU (U5-2)	–	+	–
UUUUUUUa	+	+	+
UUUUU-U	+	+	+
UUUUUCU	+	+	+
UUCUGU (U5-3)	–	+	–
UUCUUU	+/–	+	+
UUCUCU	+/–	+	+

+, growth; +/–, slow growth; –, no growth. Plates were scored after 3 days at 30 and 37°C or 5 days at 16°C.

^aVariants that appeared twice.