Coding exon-structure aware realigner (CESAR) utilizes genome alignments for accurate comparative gene annotation.

ABSTRACT: Identifying coding genes is an essential step in genome annotation. Here, we utilize existing whole genome alignments to detect conserved coding exons and then map gene annotations from one genome to many aligned genomes. We show that genome alignments contain thousands of spurious frameshifts and splice site mutations in exons that are truly conserved. To overcome these limitations, we have developed CESAR (Coding Exon-Structure Aware Realigner) that realigns coding exons, while considering reading frame and splice sites of each exon. CESAR effectively avoids spurious frameshifts in conserved genes and detects 91% of shifted splice sites. This results in the identification of thousands of additional conserved exons and 99% of the exons that lack inactivating mutations match real exons. Fi

SUBMITTER: Sharma V 

PROVIDER: S-EPMC4914097 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature