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Inhibition of a prolyl hydroxylase domain (PHD) by substrate analog peptides
- Authors
- Kwon, Hyuk Sung; Choi, Yien Kyoung; Kim, Jeong Won; Park, Yong Keun; Yang, Eun Gyeong; Ahn, Dae-Ro
- Issue Date
- 15-7월-2011
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- HIF-1 alpha; PHD2; Substrate analog peptides; Peptide inhibitors; Hypoxia
- Citation
- BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, v.21, no.14, pp.4325 - 4328
- Indexed
- SCIE
SCOPUS
- Journal Title
- BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
- Volume
- 21
- Number
- 14
- Start Page
- 4325
- End Page
- 4328
- ISSN
- 0960-894X
- Abstract
- Oxygen dependent degradation of hypoxia-inducible factor (HIF)-1 alpha is triggered with hydroxylation by proline hydroxylase domain 2 (PHD2) under normoxic conditions. Some of previously developed PHD2 inhibitors show a considerable potency against factor inhibiting HIF (FIH), the HIF asparagine hydroxylase. For specific inhibition of PHD2, we have synthesized peptides containing 556-575 residues of HIF-1 alpha with modifications at the Pro-564 and examined their inhibitory effect against PHD2. Adopting fluorescence polarization-based assays, we evaluated inhibitory potency of the peptides and selected potent inhibitors. These PHD2 inhibitor peptides showed no significant potency against FIH, demonstrating their specific inhibitory effect on PHD2. (C) 2011 Elsevier Ltd. All rights reserved.
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