Table 1. Effects of the nucleotide context and the stop codon on basal readthrough (B), gentamicin-induced readthrough (G) and increase factor (I).

	B	G	I
−6	C>U- A>U	/	U>G
−5	/	A, C>G	/
−4	/	/	/
−3	/	/	A, C, U>G *
−2	/	/	C>A
−1	/	U>A, C, G	U>C>A, G *
Stop	UGA>UAG>UAA *	UGA>UAG>UAA *	/
+4	C>A, G, U	C>A, G, U *	C>U
+5	U>A	/	A>U, G *
+6	/	/	/
+7	/	/	/
+8	/	G>C	/
+9	/	/	U>C, G

Hierarchies were established based on ANOVA/LSD tests after normalization of B, G and I. The sign>indicates a higher level of readthrough or factor of increase. In bold results obtained with a p≤0.05 (Table S5 and Table S6).

*: p≤0.005.