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![[Figure 2]](gi5041fig2mag.jpg)
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Figure 2
Binding interfaces of AscX and YscY. Superpositions of AscX49–YscY (blue, PDB entry 8arb), AscX31–YscY (cyan, PDB entry 8ara) and YscX50–YscY (gray, PDB entry 7qih) are shown with the substrate depicted as a ribbon and sticks. The surface of the AscX49–YscY chaperone is colored according to its hydrophobicity from red (highly hydrophobic residues) to white (hydrophilic residues) (Eisenberg et al., 1984  ). (a) The α1 binding site is identical, except for the sequence difference Trp58 in YscX versus Leu57 in AscX. (b) Three sequence differences in the α2 and α3 helices are shown, which occur at the edge of the binding interface between substrate and chaperone. |
![[Figure 2]](gi5041fig2.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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