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Figure 1
Overall reconstruction of CFA/I pili. (a) Side view of the CFA/I pilus reconstruction fit with the model, with subunits colored distinctively. (b) A representative outer region of the CFA/I pilus structure, Pro13 is highlighted in red. (c) The cut-away view shows core of CFA/I pilus rod, where the N-terminal extension of subunit n is inserted into the β-strands groove of the preceding subunit. A close-up view shows the clearly separated β-strands as well as the Pro13 at the end of N-terminal extension of each subunit. (d) A view of Pro13 shown in stick representation within the cryo-EM map.

IUCrJ
Volume 6| Part 5| September 2019| Pages 815-821
ISSN: 2052-2525
https://doi.org/10.1107/S2052252519007966