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Figure 2.
Figure 2. (A) Structural superposition of bsmtnX (green), mjPSP
(PDB: 1l7p; yellow), and paThrH (PDB: 1rku; grey). The active
site aspartate, the bound phosphoserine in mjPSP, and the metal
ions are shown in ball-and-stick representation. The
zinc-binding sub-domain unique to bsmtnX is colored red and an
arrow indicates its position. The loop connecting helices H2 and
H3, which modulates transition between open/closed states, is
also colored red. (B) Structural superposition of the active
site residues of the three enzymes. Carbon atoms are colored as
in (A), oxygens are red, nitrogens are blue, and phosphate is
orange.
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