Genomic organisation of the rat LOC689986 gene and the human ortholog C1orf146 . LOC689986 is localised on chromosome 14 in rat, while the human ortholog (C1orf146) is localised on chromosome 1. Chromosomal positions are indicated. Both the rat and human gene consists of six exons, with the predicted start codon localised in exon 2. Open box: UTR regions. Filled box: coding region. Exon number is indicated above the boxes. The number of base pairs constituting the exons and introns are visualised in black and grey, respectively, underneath the corresponding genomic structure.