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Figure 4
A stereoview comparing the active sites of the two molecules in the asymmetric unit. Asp62 and Ser60 with alternate side-chain conformations together with the magnesium ion from molecule B (magenta) are superimposed on the protein side chains and the magnesium ion from molecule A (cyan). Stick models for the reaction products ATP and CMP from molecule A are also displayed.

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
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