Size distribution of the UTR regions in P.profundum. 5′-UTRs on chr. 1 (a), and on chr. 2 (b), 3′-UTRs on chr. 1 (c) and on chr. 2 (d). On average 5′-UTRs are longer than 3′-UTRs, this is expected since regulatory information in bacteria is generally determined in 5′-UTR regions.
Campanaro et al. BMC Genomics 2012 13:567 doi:10.1186/1471-2164-13-567