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![[Figure 2]](dz5267fig2mag.jpg)
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Figure 2
A ribbon diagram of the P. aeruginosa β-A:PyAT tetramer viewed approximately along the molecular dyad. The individual subunits are shown in different colours. The cofactor PLP is shown as a space-filling model and the two calcium ions on the interface of the catalytic dimers are shown as black spheres. Figs. 2–7 were prepared using PyMOL (DeLano, 2002  ). |
![[Figure 2]](dz5267fig2.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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