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Figure 2
(a) Definition of secondary-structure elements in the His6-ChpT sequence. (b) Ribbon representation of the overall ChpT structure viewed perpendicular to the twofold symmetry axis. The two ChpT subunits are displayed in green and blue, respectively. This view shows the formation of the four-helix bundle of the DHp domain flanked by the two C-terminal domains. The catalytic His33 residues are shown in ball-and-stick representation on opposite faces of the DHp domain. The two N-termini are also indicated. (c) Representation of one ChpT subunit, with all secondary-structure elements labelled.

Journal logoSTRUCTURAL BIOLOGY
COMMUNICATIONS
ISSN: 2053-230X
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