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. 2010 Apr 20;10(4):4010–4039. doi: 10.3390/s100404010

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© 2010 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 9. — Visualization and identification of chemoreceptor arrays. (a) Low-dose cryo-projection image of the polar region in a wild-type E. coli cell, with the chemoreceptor array shown in greater detail in the Inset. (b) Schematic representation of the polar region of a wild-type E. coli cell illustrating the assembly and orientation of the chemotaxis receptor array, based on a and b. (c) The trimer of dimers of the cytoplasmic fragment of Tsr as a crystal unit. Adopted from reference [162] and [164].