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![[Figure 6]](rr5081fig6mag.jpg)
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Figure 6
Psy-Lig-A coloured by electrostatic surface potential. The surface potential was generated using APBS (Dolinsky et al., 2007  ), with positively charged areas shown in blue and negatively charged areas in red. (a) Overview of the Psy-Lig structure with residues predicted to be involved in DNA interactions shown as sticks. (b) Surface and (c) important residues of the AD domain looking at the active site. The AMP cofactor and sulfate ion are shown as sticks. Green arrows indicate the approximate positions of the nicked DNA strands based on the model shown in Fig. 5. (d) Surface residues and (e) residues of the OB domain looking towards the DNA-binding site predicted by the model. The green arrow indicates the approximate position of the complementary DNA strand in the OB groove. |
![[Figure 6]](rr5081fig6.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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