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![[Figure 6]](di5064fig6mag.jpg)
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Figure 6
(a) Close-up of the active site in chain A of TthCS showing the protein chain in ribbon representation and the PLP cofactor and the side chains of Lys52, Thr188, Thr191 and Ser275 in stick representation, with N atoms in blue, O atoms in red, C atoms in grey and P atoms in magenta. Key hydrogen bonds are indicated by dashed lines. Residue numbering refers to the TcCS sequence in Fig. 2 ![[link]](../../../../../../logos/arrows/d_arr.gif){kind=small} . (b) Close-up of the active site of TcCS. PLP, Lys52, Thr188, Gly189, Thr191 and Ser275 are shown in stick representation using the same colour coding for atoms as before. Dashed lines indicate key hydrogen bonds. (c) Close-up showing the active site of TcCS chain A. PLP, OAS, Lys52, Thr188, Gly189 and Asn83 are shown in stick representation using the same colour-coding for atoms as before. Dashed lines indicate hydrogen bonds. |
![[Figure 6]](di5064fig6.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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