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Figure 4.
Fig. 4. Alignment of the PCNA structures in complex with
the p21-derived peptide 139GRKRRQTSMTDFYHSKRRLIFS160 (green)
with PCNA (cyan) (Protein Data Bank ID code 1AXC [PDB]
) and the PL peptide 1SAVLQKKITDYFHPKK16 (orange) with PCNA
(blue). Key interacting residues are labeled. The
phosphorylation site (S146) is highlighted, and the interaction
with D149 (D10) is shown (purple).
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