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    Bioorg Med Chem Lett. 2002 Jun 17;12(12):1547-50.

    The use of dioxygen by HIF prolyl hydroxylase (PHD1).

    Source

    Oxford Centre for Molecular Sciences, Dyson Perrins Laboratory, South Parks Road, Oxford OX1 3QY, UK.

    Abstract

    The hypoxic response in animals is mediated by hydroxylation of proline residues in the alpha-subunit of hypoxia inducible factor (HIF). Hydroxylation is catalysed by prolyl-4-hydroxylases (PHD isozymes in humans) which are iron(II) and 2-oxoglutarate dependent oxygenases. Mutation of the arginine proposed to bind 2-oxoglutarate and of the 2His-1-carboxylate iron(II) binding motif in PHD1 dramatically reduces its activity. The source of the oxygen of the product alcohol is (>95%) dioxygen.

    PMID:
    12039559
    [PubMed - indexed for MEDLINE]

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