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. Author manuscript; available in PMC: 2018 Apr 24.
Published in final edited form as: Biochemistry. 2008 Jan 15;47(7):1938–1946. doi: 10.1021/bi702006h

Figure 1.

Figure 1

Structures of E. coli NikR. Each monomer composing the tetramer is a different color. (a) Alignment of apo-MBD (in color, this work) and apo full-length NikR (in grey, PDB 1Q5V). (b) Alignment of Ni2+-bound structures of MBD (in color, PDB 1Q5Y) and full-length NikR (in grey, PDB 2HZA). (c) DNA- and Ni2+-bound full-length NikR (PDB 2HZV). K+, which was observed bound in NikR-DNA structure, are represented by black spheres. Asterisks indicate loops and α3 helices that make connections to the DNA.