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. Author manuscript; available in PMC: 2010 Jul 13.
Published in final edited form as: Biochemistry. 2003 Mar 18;42(10):2952–2959. doi: 10.1021/bi027127g

Figure 1.

Figure 1

Two orientations of the chemoreceptor structural model (2, 8) illustrating the positions of engineered cysteine positions. In each orientation, one subunit of the symmetric dimer is shown in gold, the other in blue. The two orientations differ by a 90° rotation about the long axis of the dimer. The dark side chains indicate the positions of the 52 engineered cysteine substitutions in the periplasmic and cytoplasmic domains. Also highlighted are the locations of the four adaptation sites on the cytoplasmic domain of the aspartate receptor.