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Figure 2.
Fig. 2. Ribbon diagram of the structure of E. coli. MalK
homodimer with bound ADP-Mg2+.(A) Schematic diagram showing the
subunit structure of a monomer. The NBD (residues 1-235) is in
green/cyan and RD (residues 236-371) in yellow. Different colors
further distinguish the subdomains or segments in the NBD as
follows: green, RecA-like subdomain (residues 1-87 and 152-235);
cyan, helical subdomain (residues 88-151). (B) Stereoview of the
homodimer viewed down the local twofold axis. ADP is represented
in ball-and-stick model (O atoms, red; N atoms, blue; C atoms,
yellow; P atoms, orange; and magnesium, purple). Walker A motif
is colored in red. The color schemes for the domains of the two
monomers are similar, except that one is rendered in lighter
color. (C) Stereoview of the homodimer obtained by a 90°
clockwise rotation of the structure shown in B about a
horizontal axis. Missing residues are shown as dashed lines.
Figures were prepared with PYMOL (www.pymol.
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