Anti-PHD3 Rabbit Polyclonal Antibody
Product Information
Downloads & Supports
Target
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EGLN3
Host
Storage
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Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze/thaw cycles.
Clonality
Clone Number
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-
Isotype
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IgG
Reactivity
Application
Application Details
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IHC: 1/50-1/100
Immunogen
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Fusion protein of human EGLN3
Molecular Weight
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-
Formulation
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pH 7.4 PBS, 0.05% NaN3, 40% Glycerol
Form
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Liquid
Gene ID
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112399
Uniprot ID
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Q9H6Z9
Background
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Cellular oxygen sensor that catalyzes, under normoxic conditions, the post-translational formation of 4-hydroxyproline in hypoxia-inducible factor (HIF) alpha proteins. Hydroxylates a specific proline found in each of the oxygen-dependent degradation (ODD) domains (N-terminal, NODD, and C-terminal, CODD) of HIF1A. Also hydroxylates HIF2A. Has a preference for the CODD site for both HIF1A and HIF2A. Hydroxylation on the NODD site by EGLN3 appears to require prior hydroxylation on the CODD site. Hydroxylated HIFs are then targeted for proteasomal degradation via the von Hippel-Lindau ubiquitination complex. Under hypoxic conditions, the hydroxylation reaction is attenuated allowing HIFs to escape degradation resulting in their translocation to the nucleus, heterodimerization with HIF1B, and increased expression of hypoxy-inducible genes. EGLN3 is the most important isozyme in limiting physiological activation of HIFs (particularly HIF2A) in hypoxia. Also hydroxylates PKM in hypoxia, limiting glycolysis. Under normoxia, hydroxylates and regulates the stability of ADRB2. Regulator of cardiomyocyte and neuronal apoptosis. In cardiomyocytes, inhibits the anti-apoptotic effect of BCL2 by disrupting the BAX-BCL2 complex. In neurons, has a NGF-induced proapoptotic effect, probably through regulating CASP3 activity. Also essential for hypoxic regulation of neutrophilic inflammation. Plays a crucial role in DNA damage response (DDR) by hydroxylating TELO2, promoting its interaction with ATR which is required for activation of the ATR/CHK1/p53 pathway. Target proteins are preferentially recognized via a LXXLAP motif.
Research Area
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Cardiovascular
Synonyms
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PHD3; HIFPH3; HIFP4H3