View source for 4jzr


==Structure of Prolyl Hydroxylase Domain-containing Protein (PHD) with Inhibitors==
<StructureSection load='4jzr' size='340' side='right'caption='[[4jzr]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4jzr]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JZR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4JZR FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=4JR:2-(BIPHENYL-4-YL)-8-[(1-METHYL-1H-IMIDAZOL-2-YL)METHYL]-2,8-DIAZASPIRO[4.5]DECAN-1-ONE'>4JR</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4jzr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4jzr OCA], [https://pdbe.org/4jzr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4jzr RCSB], [https://www.ebi.ac.uk/pdbsum/4jzr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4jzr ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/EGLN1_HUMAN EGLN1_HUMAN] Defects in EGLN1 are the cause of familial erythrocytosis type 3 (ECYT3) [MIM:[https://omim.org/entry/609820 609820]. ECYT3 is an autosomal dominant disorder characterized by increased serum red blood cell mass, elevated serum hemoglobin and hematocrit, and normal serum erythropoietin levels.<ref>PMID:16407130</ref> <ref>PMID:17579185</ref> 
== Function ==
[https://www.uniprot.org/uniprot/EGLN1_HUMAN EGLN1_HUMAN] 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 HIF1B. 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. EGLN1 is the most important isozyme under normoxia and, through regulating the stability of HIF1, involved in various hypoxia-influenced processes such as angiogenesis in retinal and cardiac functionality.<ref>PMID:11595184</ref> <ref>PMID:12351678</ref> <ref>PMID:15897452</ref> <ref>PMID:19339211</ref> <ref>PMID:21792862</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
We have discovered a novel complex crystal structure of the PHD2 enzyme with its inhibitor, the 2,8-diazaspiro[4.5]decan-1-one analogue 4b. The widely reported salt bridge between Arg383 of the enzyme and its inhibitors in all complex structures published thus far was not observed in our case. In our complex structure compound 4b forms several novel interactions with the enzyme, which include a hydrogen bond with Arg322, a pi-cation interaction with Arg322, a pi-pi stacking with Trp389, and a pi-pi stacking with His313. Guided by the structural information, SAR studies were performed on the 2,8-diazaspiro[4.5]decan-1-one series leading to the discovery of compound 9p with high potency and good oral pharmacokinetic profile in mice.

Novel complex crystal structure of prolyl hydroxylase domain-containing protein 2 (PHD2): 2,8-Diazaspiro[4.5]decan-1-ones as potent, orally bioavailable PHD2 inhibitors.,Deng G, Zhao B, Ma Y, Xu Q, Wang H, Yang L, Zhang Q, Guo TB, Zhang W, Jiao Y, Cai X, Zhang J, Liu H, Guan X, Lu H, Xiang J, Elliott JD, Lin X, Ren F Bioorg Med Chem. 2013 Nov 1;21(21):6349-58. doi: 10.1016/j.bmc.2013.08.046. Epub , 2013 Sep 3. PMID:24055079<ref>PMID:24055079</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4jzr" style="background-color:#fffaf0;"></div>

==See Also==
*[[Polyl hydroxylase domain 3D structures|Polyl hydroxylase domain 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Ma Y]]
[[Category: Yang L]]