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  • Title: Making light work of enzyme catalysis: protochlorophyllide oxidoreductase.
    Author: Heyes DJ, Hunter CN.
    Journal: Trends Biochem Sci; 2005 Nov; 30(11):642-9. PubMed ID: 16182531.
    Abstract:
    In the chlorophyll biosynthetic pathway, the enzyme protochlorophyllide oxidoreductase (POR) catalyses a key light-driven reaction that triggers a profound transformation in plant development. Because POR is activated by light, it can provide information on the way in which light energy can be harnessed to power enzyme reactions and it presents us with a unique opportunity to study catalysis at low temperatures and on ultrafast timescales that are not accessible for most analyses of enzyme function. Recent advances in our understanding of the catalytic mechanism of POR illustrate why it is an important generic model for studying enzyme catalysis and reaction dynamics.
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