Fig. 8.

Computer-aided 3D models of SL1. a Model constructed using parts of reported monomer structure of SL1 (pdb id = 1N8X) to incorporate the information about nucleotide base pairs shown in Fig. 7a. b Superimposition of the Fig. 7a structure with the authentic SL1 structure (pdb id = 1N8X). c The modified dimer model using the Fig. 7a structure and parts of reported dimer structure (pdb id = 2B8R). The representations of A and C include nucleotide side chains