Additional file 7.

DGR RTs contain a positively charged region at their C-terminus. Additional file a 5 shows a section of Additional file 4 comprising the region C-terminal to domain 5. Only positively charged amino acids are highlighted in red. In DGR RTs, domain 7 is often followed by a patch with high positive charge (up to 11 positively charged amino acids in a 20 amino acid region), a feature that is not found in other RT enzymes.

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Schillinger et al. BMC Genomics 2012 13:430   doi:10.1186/1471-2164-13-430