Document Type


Peer Reviewed


Publication Date


NLM Title Abbreviation

Hypoxia (Auckl)

Journal/Book/Conference Title


PubMed ID


DOI of Published Version



The ability of cells to sense oxygen is a highly evolved process that facilitates adaptations to the local oxygen environment and is critical to energy homeostasis. In vertebrates, this process is largely controlled by three intracellular prolyl-4-hydroxylases (PHD 1-3). These related enzymes share the ability to hydroxylate the hypoxia-inducible transcription factor (HIF), and therefore control the transcription of genes involved in metabolism and vascular recruitment. However, it is becoming increasingly apparent that proline-4-hydroxylation controls much more than HIF signaling, with PHD3 emerging as an exceptionally unique and functionally diverse PHD isoform. In fact, PHD3-mediated hydroxylation has recently been purported to function in such diverse roles as sympathetic neuronal and muscle development, sepsis, glycolytic metabolism, and cell fate. PHD3 expression is also highly distinct from that of the other PHD enzymes, and varies considerably between different cell types and oxygen concentrations. This review will examine the evolution of oxygen sensing by the HIF-family of PHD enzymes, with a specific focus on complex nature of PHD3 expression and function in mammalian cells.


OAfund, PHD3, EGLN3, HIF–PHD, hypoxia-inducible factor, hypoxia, oxygen sensing

Journal Article Version

Version of Record

Published Article/Book Citation

Hypoxia, 2013:1 (2013) pp. 13-27 DOI: 10.2147/HP.S50091


© 2013 Place and Domann

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This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License

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