Structure of the polβ:Pt-GG·dCTP*-Mn2+ ternary complex (Protein Data Bank code 4TUS).
A, overall structure of the Pt-GG·dCTP*-Mn2+ ternary complex. B, overlay of the Pt-GG·dCTP*-Mg2+ (white) and the Pt-GG·dCTP*-Mn2+ (cyan) structures. C, close-up view of the active site region of the Pt-GG·dCTP*-Mn2+ structure. D, overlay of the active site region of the Pt-GG·dCTP*-Mg2+ (white) and the Pt-GG·dCTP*-Mn2+ (multicolored) structures. E, comparison of the unmodified GG·dCTP*-Mg2+ (yellow) and the Pt-GG·dCTP*-Mn2+ (multicolored) structures.