Table 1. Spearman's rank coefficient analysis of UGA stop signal occurrence in three genomes versus measured readthrough in COS-7 cells.

	Frequency		Frequency ratio
	Rho	P-value	Rho	P-value
H. sapiens	–0.2191056	n.s.	–0.2925824	P < 0.05
D. melanogaster	–0.5418644	P < 0.001	–0.4180909	P < 0.001
S. cerevisiae	–0.4270498	P < 0.001	–0.4505952	P < 0.001

n.s., not significant.