Figure 2.

cis-NAT classification. cisNAT pairs can be protein coding sequences (pc) or non-coding sequences (nc), forming nc|pc, nc|nc or pc|pc pairs. In head-to-head orientation, sense and antisense transcripts overlap on their 5′ ends. Inversely, tail-to-tail describes an overlap of the 3′ ends. In a full overlap (or embedded overlap), one transcript is totally included in the other one.