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. Author manuscript; available in PMC: 2007 Mar 21.
Published in final edited form as: Biochemistry. 2006 Dec 2;45(51):15392–15404. doi: 10.1021/bi0618969

Figure 5.

Figure 5

Structural differences in conserved helix E residues. (A) Positions of conserved Thr-203 and Asn-204 in PHH. (B) Redox-dependent structural changes in the positions of Thr-213, Asn-214, and Glu-243 in MMOH. Carbon atoms for the reduced and oxidized forms of MMOH are colored gray and yellow, respectively. (C) Positions of conserved Thr-213 and Asn-214 in the 6-bromohexan-1-ol-bound form (green) of MMOH in which helix E adopts a more π-helical character. (D) Superimposition of the PHH (red) and ToMOH (blue) four-helix bundles. Helices A–F are labeled accordingly. (E) Superimposition of the four-helix bundle from the 6-bromohexan-1-ol-bound form of MMOH (green) with the PHH (red) four-helix bundle. (F) Superimposition of the ToMOH (violet) and MMOH (pink) four-helix bundles.

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