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Regulation of E. coli ribonucleotide reductase by reversible oligomerization

Regulation of E. coli ribonucleotide reductase by reversible oligomerization
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Description: All nucleotides stimulate formation of the active tetramer from and dimers.

dATP binding at  the activity sites shifts the equilibrium to formation of inactive octamer.

ATP binding shifts the equilibrium back to active tetramer.

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Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34849
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