Abstract:
BACKGROUND:One way in which the accuracy of gene structure prediction in vertebrate DNA sequences can be improved is by analyzing alignments with multiple related species, since functional regions of genes tend to be more conserved. RESULTS:We describe DOGFISH, a vertebrate gene finder consisting of a cleanly separated site classifier and structure predictor. The classifier scores potential splice sites and other features, using sequence alignments between multiple vertebrate species, while the structure predictor hypothesizes coding transcripts by combining these scores using a simple model of gene structure. This also identifies and assigns confidence scores to possible additional exons. Performance is assessed on the ENCODE regions. We predict transcripts and exons across the whole human genome, and identify over 10,000 high confidence new coding exons not in the Ensembl gene set. CONCLUSION:We present a practical multiple species gene prediction method. Accuracy improves as additional species, up to at least eight, are introduced. The novel predictions of the whole-genome scan should support efficient experimental verification.
journal_name
Genome Bioljournal_title
Genome biologyauthors
Carter D,Durbin Rdoi
10.1186/gb-2006-7-s1-s6subject
Has Abstractpub_date
2006-01-01 00:00:00pages
S6.1-12eissn
1474-7596issn
1474-760Xpii
gb-2006-7-s1-s6journal_volume
7 Suppl 1pub_type
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