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. Author manuscript; available in PMC: 2024 Apr 6.
Published in final edited form as: Structure. 2023 Mar 3;31(4):385–394.e4. doi: 10.1016/j.str.2023.02.005

Figure 2. The T-pilus is composed of VirB2 and PG-phospholipid.

Figure 2.

(A) Map density of a helical layer as seen from the top. VirB2-assigned density in yellow with the protein chain represented as a string. Bulky sidechains are shown. PG-assigned density is coloured in grey. Sidechain of Arg 91 is seen extending into the lumen. (B) The filament seen from the side with three layers of VirB2. (C) Map/model coverage of a single PG molecule.