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Table 4.

Label Probabilities for Database Matches of the Six Types Considered

Type of annotation	Coding	Intron in coding	Intron in UTR	Intergenic	5′ UTR	3′ UTR
Coding	0.300	0.150	0.050	0.050	0.050	0.050
cDNA	0.320	0.007	0.007	0.007	0.320	0.320
Intron	0.088	0.130	0.130	0.088	0.088	0.088
EST	0.120	0.107	0.107	0.107	0.120	0.120
Repeat	0.000	0.125	0.125	0.125	0.125	0.125
Intergenic	0.013	0.013	0.013	0.990	0.013	0.013

[i] There are three different labels for introns in coding regions (corresponding to the three possible phases) and two intron labels for UTRs, those in 5′ UTRs, and those in 3′ UTRs. Therefore, the rows sum to 1 (e.g., for coding 0.3 + 3 × 0.15 + 2 × 0.05 + 0.05 + 0.05 + 0.05 = 1).