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. Author manuscript; available in PMC: 2020 Dec 3.
Published in final edited form as: Structure. 2019 Oct 8;27(12):1855–1861.e3. doi: 10.1016/j.str.2019.09.008

Figure 1. Architecture of the cellulose synthase outer membrane pore.

Figure 1.

(A) Illustration of the BcsC cellulose synthase subunit containing an N-terminal signal sequence and C-terminal β-barrel pore.

(B) Structure of the E. coli BcsC2 construct containing the β-barrel porin preceded by the linker region and TPR domain #19. The TPR helices are colored black, the linker region is shown in light gray, and the β-barrel is colored gray with the exception of its N- and C-terminal strands (blue and red, respectively). The main extracellular loops EL2,3,6,7, and 8, are colored and labeled and the C-terminal periplasmic extension is shown in magenta. (See also Figure S2)

(C) Surface representation of BcsC2 colored as in panel B.