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Figure 4 | Biology Direct

Figure 4

From: GTPases and the origin of the ribosome

Figure 4

Structure similarities between the bacterial EFTu, EFG and IF2, OB second domains. Here are displayed three nearly identical substructures within three OB-domains: one in yellow, orange and red and the second in cyan, green and blue. The lack of any significant sequence similarity among the clear homologues is indicated by the very different amino acids at the marked equivalent labeled positions.

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