Structural basis for binding of cyclic 2-oxoglutarate analogues to factor-inhibiting hypoxia-inducible factor

Aromatic analogues of the 2-oxoglutarate cosubstrate of the hypoxia-inducible factor hydroxylases are shown to bind at the active site iron: Pyridine-2,4-dicarboxylate binds as anticipated with a single molecule chelating the iron in a bidentate manner. The binding mode of a hydroxamic acid analogue...

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Bibliographic Details
Main Authors: Conejo-Garcia, A, McDonough, M, Loenarz, C, Schofield, C, Clifton, I
Other Authors: McNeill, L
Format: Journal article
Language:English
Published: Elsevier 2010
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Description
Summary:Aromatic analogues of the 2-oxoglutarate cosubstrate of the hypoxia-inducible factor hydroxylases are shown to bind at the active site iron: Pyridine-2,4-dicarboxylate binds as anticipated with a single molecule chelating the iron in a bidentate manner. The binding mode of a hydroxamic acid analogue, at least in the crystalline state, is unusual because two molecules of the inhibitor are observed at the active site and partial displacement of the iron binding aspartyl residue was observed.