Identification of a TATDN2-GHRLOS chimaeric transcript by nested RT-PCR. (A) Overview of the gene structures of TATDN2 (orange) and GHRLOS exons (blue). TATDN2 exon 8 contains first exons of GHRLOS and is therefore shown in orange and blue. Exons are represented as boxes, introns as horizontal lines and sizes (bp) are indicated below each exon. A TATDN2 CpG island is shown as a green box. The location of RT-PCR primers employed to detect chimaeras are shown below each exon as arrows. The reported 761 amino acid TATDN2 open reading frame (encoded by [GenBank:NM_014760]) is shown as a straight line (M = initiating methionine; * = stop codon). A chimaeric TATDN2-GHRLOS transcript, its open reading frame and locations of a premature stop codon (*) is shown. Not drawn to scale. (B) Ethidium bromide stained agarose gel of nested RT-PCR product for the TATDN2-GHRLOS chimaera. Arrows indicates the amplicon schematically displayed in (A). M = 1 kb DNA Ladder (NEB).