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Figure 6
Ligand-binding sites of gfasPurple (purple), amilCP (dark blue), eforRed (red) and spisPink (pink). GfasPurple and amilCP are overlapped and shown together due to their high sequence identity (98.2%). (a)–(c) Front view showing chromophore-binding interactions. Hydrogen bonds are indicated by dashed black lines and the water molecule near the conserved methionine residue (Met159/Met161/Met163), which is part of the hydrogen-bonding network linking the two dimers shown in Fig. 4[link](c), is shown as a sphere. (d, e) The same as (a)–(c) but in a side view parallel to the plane of the imidazolinone ring showing the overall planarity of the chromophore.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 78| Part 5| May 2022| Pages 599-612
https://doi.org/10.1107/S2059798322002625
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