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Figure 9
(a) AlphaFold3 model of RbtM, a putative RBP, from diffocin-4 (Gebhart et al., 2015View full citation). The predicted aligned error, dark green, for residues in domain I (residues 1 to 385) compared with domain IV (residues 1292 to 1558) is relatively low as they are predicted to bind together through a shared β-sheet as seen in the rainbow-coloured model (N-terminus, blue; C-terminus, red). (b) AlphaFold3 model of gp33 from C. difficile phage ΦMMP03. (c) AlphaFold3 model of RtbL, a putative baseplate attachment protein from diffocin-4 (Gebhart et al., 2015View full citation). Note that the apparent helical bundle is predicted with low confidence and could be stretched into one long helix as predicted for gp67 of ΦCD508 [see (d)]. (d) Alignment of predicted structures of ΦCD508 gp67 and diffocin-4 RtbL; close alignment is seen for the N-terminal domains.

IUCrJ
Volume 13| Part 4| July 2026|
ISSN: 2052-2525
https://doi.org/10.1107/S2052252526005105