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Figure 5 | BMC Structural Biology

Figure 5

From: Evolutionary connection between the catalytic subunits of DNA-dependent RNA polymerases and eukaryotic RNA-dependent RNA polymerases and the origin of RNA polymerases

Figure 5

A hypothetical scheme of evolution of two types of 6-stranded β-barrels from 3-stranded units. The scheme was derived as the most parsimonious explanation for the phyletic patterns and structural peculiarities of each lineage of 6-stranded barrels. The emergence of particular properties or characters characteristic of a given clade is indicated by horizontal bars.

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BMC Structural Biology

ISSN: 1472-6807

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