Figure 4.

Split RNR genes identified in completely sequenced phage genomes. The intervening sequences (introns, inteins, and homing endonucleases (HEG)) within and between closely situated RNR genes are also listed. The RNR genes are schematically represented in the third column. The alphabetical order within each gene identifies the separated coding fragments; for example, the two regions of nrdA are designated as nrdA-a and nrdA-b due to their split by an intein in Aeromonas phage Aeh1.

Dwivedi et al. BMC Evolutionary Biology 2013 13:33   doi:10.1186/1471-2148-13-33
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