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![[Figure 4]](jc5054fig4mag.jpg)
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Figure 4
The structure of the noncatalytic domains of NnGH92. (a) The N-terminal CBM32 (yellow) superimposed on the CBM32 of the GH33 sialidase from Micromonospora viridifaciens (MvGH33; cyan; PDB entry 1euu; Gaskell et al., 1995  ). (b) ManI (coloured by atom type) bound to the N-terminal CBM32 (yellow) and galactose (Gal, coloured by atom type) bound to the CBM32 (cyan) of MvGH33. The highlighted residues shape the binding sites of both CBM32s. The Na+ ion (purple) is in an equivalent position to the Ca2+ atom (black) in NnGH92. (c) The CBM-like domain (grey) with a bound Ca2+ atom (black). (d) The C-terminal CBM32 (green) superimposed on the CBM32 of MvGH33 (cyan; PDB entry 1euu; Gaskell et al., 1995). (e) The FHB domain (blue) of unknown function. |
![[Figure 4]](jc5054fig4.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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