Conservation and gene structure of EGO. (A) Vista tracks of mouse and chicken on the UCSC browser showing conservation of the ITPR-1 region. The arrow indicates the EGO region. ITPR-1 exons are shown as vertical lines. The y axis ranges from 50%-100% percent identity. (B) Vista tracks of mouse and chicken on the UCSC browser at the same magnification as panel C. (C) The structure of EGO transcripts is shown. The representative cDNA clones (BCO35947 and AW970881) from BLAT (http://genome.ucsc.edu) are shown in black. The putative 5′ end of EGO-A is shown in gray. Note that EGO transcripts are shown 3′ to 5′ because they are on the minus strand of genomic DNA.