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. 2017 Mar 14;6:262. [Version 1] doi: 10.12688/f1000research.11007.1

Figure 13. The newly identified human cellular structures display both canonical and histone H4 with an ancestral viral footprint.

Figure 13.

3D protein structure models generated by SWISS-MODEL suggests that the human Mimivirus-like structures have a role in the regulation of transcription. The histone H4 with the IVY pattern have a closed transcriptionally inactive conformation. The canonical human histone H4 have an open conformation that is transcriptionally active.