Rat Spag11t/Spag11c localization on Chromosome 16. A, Ideogram of rat Chromosome 16. B, Arrangement of genes from 75.5 megabases to 74.8 megabases (not to scale). Arrows indicate direction of transcription. Positions were taken from the MapView (build 3.1) at The National Center for Biotechnology Information (NCBI) website. C, Intron-Exon structure of rat Spag11t/Spag11c gene. Black boxes indicate translated regions of the exons. The region of exon 2 not included in Spag11c after the intrinsic splice site is shown as a hashed box.