TABLE 4.

Effects of deletions of UPF1, NMD2, or UPF3 on the accumulation of CYH2 pre-mRNA and mRNA in dcp1Δ cells^a

Strain	Pre-mRNA			mRNA
	Total	Capped	Uncapped	Total	Capped	Uncapped
Wild type	1.00	NAb	NA	1.00	0.90	0.10
dcp1Δ	14.20	12.10	2.10	0.75	0.65	0.10
dcp1Δ upf1Δ	8.30	7.60	0.70	0.60	0.50	0.10
dcp1Δ nmd2Δ	20.90	17.80	3.10	1.05	0.93	0.12
dcp1Δ upf3Δ	12.20	10.60	1.60	0.70	0.60	0.10

^aThe Northern blot in Fig. 8B was used to determine levels of the CYH2 pre-mRNA and mRNA. The relative abundance of the different RNAs was determined as explained in footnotes b and c Table 2. 

^bNA, not applicable.