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Literature summary for 1.14.11.2 extracted from

  • Chowdhury, R.; McDonough, M.A.; Mecinovic, J.; Loenarz, C.; Flashman, E.; Hewitson, K.S.; Domene, C.; Schofield, C.J.
    Structural basis for binding of hypoxia-inducible factor to the oxygen-sensing prolyl hydroxylases (2009), Structure, 17, 981-989.
    View publication on PubMed

Application

Application Comment Organism
drug development the enzyme is a target for design of PHD inhibitors aimed at treating anemia and ischemic disease Homo sapiens

Cloned(Commentary)

Cloned (Comment) Organism
expression of wild-type and mutant enzymes in Escherichia coli strain BL21(DE3) Homo sapiens

Crystallization (Commentary)

Crystallization (Comment) Organism
recombinant catalytic domain of PHD2 in complex with the C-terminal oxygen-dependent degradation domain of HIF-1alpha, 20°C, 100 nl protein solution containing 40 mg/ml protein in 50 mM Tris-HCl, pH 7.5, 1 mM MnCl2, 1 mM NOG, and 0.1 mM HIF-1alpha CODD556-574 mixed with 100 nl of well solution consisting of 0.2 M MgCl2 and 20% PEG 3350, A tPHD2-Fe2+-B-CODD568-574 crystal is obtained by soaking preformed PHD2181-426-Fe2+-B crystals in 50% sodium malonate, pH 7.5, solution containing 10 mM 4R-hydroxylated Pro564 HIF-1alpha CODD556-574(Hyp564) peptide under anaerobic conditions for 72 h. The PHD2-Fe2+-inhibitor complexes crystallize in an apparently homotrimeric form, method optimization, X-ray diffraction structure determination and analysis at 2.0-2.3 A resolution, molecular replacement Homo sapiens

Protein Variants

Protein Variants Comment Organism
additional information construction of point mutants Homo sapiens

Metals/Ions

Metals/Ions Comment Organism Structure
Fe2+ HIF prolyl hydroxylases form unusually stable complexes with their Fe2+ cofactor and 2-oxoglutarate cosubstrate Homo sapiens

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
hypoxia-inducible transcription factor + 2-oxoglutarate + O2 Homo sapiens i.e. HIF, oxygen-dependent hydroxylation of proline residues in the alpha subunit of hypoxia-inducible transcription factor is central to the hypoxic response in animals. Prolyl hydroxylation of HIFalpha increases its binding to the von Hippel-Lindau protein, thus signaling for degradation via the ubiquitin-proteasome system hypoxia-inducible transcription factor trans-4-hydroxy-L-proline + succinate + CO2
-
?
additional information Homo sapiens HIF prolyl hydroxylases are related to the collagen prolyl hydroxylases, but form unusually stable complexes with their Fe2+ cofactor and 2-oxoglutarate cosubstrate ?
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?

Organism

Organism UniProt Comment Textmining
Homo sapiens
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sveral isozymes
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Purification (Commentary)

Purification (Comment) Organism
recombinant wild-type and mutant enzymes from Escherichia coli strain Bl21(DE3) Homo sapiens

Reaction

Reaction Comment Organism Reaction ID
procollagen L-proline + 2-oxoglutarate + O2 = procollagen trans-4-hydroxy-L-proline + succinate + CO2 active site structure and action mode, overview Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
hypoxia-inducible transcription factor + 2-oxoglutarate + O2 i.e. HIF, oxygen-dependent hydroxylation of proline residues in the alpha subunit of hypoxia-inducible transcription factor is central to the hypoxic response in animals. Prolyl hydroxylation of HIFalpha increases its binding to the von Hippel-Lindau protein, thus signaling for degradation via the ubiquitin-proteasome system Homo sapiens hypoxia-inducible transcription factor trans-4-hydroxy-L-proline + succinate + CO2
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?
hypoxia-inducible transcription factor + 2-oxoglutarate + O2 i.e. HIF, the substrate prolyl-residue is bound in a specific conformation and that a significant structural change involving a mobile loop likely occurs concomitant with HIFalpha binding. PHD catalysis involves the mobile region that isolates the hydroxylation site and stabilizes the PHD2-Fe2+-2OG complex. The hydroxylation sites of both NODD and CODD of HIFalpha occur within a conserved LXXLAP motif. In the tPHD2-CODD structure, Leu559CODD, Leu562CODD, and Ala563CODD of the LXXLAP motif form part of the CODD310-helix and make hydrophobic interactions with tPHD2 Homo sapiens hypoxia-inducible transcription factor trans-4-hydroxy-L-proline + succinate + CO2
-
?
additional information HIF prolyl hydroxylases are related to the collagen prolyl hydroxylases, but form unusually stable complexes with their Fe2+ cofactor and 2-oxoglutarate cosubstrate Homo sapiens ?
-
?

Subunits

Subunits Comment Organism
monomer although the PHD2 protein is monomeric in solution, the PHD2-Fe2+-inhibitor complexes crystallize in an apparently homotrimeric form Homo sapiens

Synonyms

Synonyms Comment Organism
HIF prolyl hydroxylase
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Homo sapiens
PHD
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Homo sapiens
PHD2
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Homo sapiens
prolyl hydroxylase domain enzyme
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Homo sapiens

General Information

General Information Comment Organism
physiological function oxygen-dependent hydroxylation of proline residues in the alpha subunit of hypoxia-inducible transcription factor is central to the hypoxic response in animals. Prolyl hydroxylation of HIFalpha increases its binding to the von Hippel-Lindau protein, thus signaling for degradation via the ubiquitin-proteasome system Homo sapiens