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| | ==Structure of human deoxyhypusine hydroxylase== | | ==Structure of human deoxyhypusine hydroxylase== |
| - | <StructureSection load='4d50' size='340' side='right' caption='[[4d50]], [[Resolution|resolution]] 1.70Å' scene=''> | + | <StructureSection load='4d50' size='340' side='right'caption='[[4d50]], [[Resolution|resolution]] 1.70Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4d50]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4D50 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4D50 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4d50]] is a 2 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=4D50 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4D50 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GAI:GUANIDINE'>GAI</scene>, <scene name='pdbligand=PER:PEROXIDE+ION'>PER</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4d4z|4d4z]]</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GAI:GUANIDINE'>GAI</scene>, <scene name='pdbligand=PER:PEROXIDE+ION'>PER</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Deoxyhypusine_monooxygenase Deoxyhypusine monooxygenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.99.29 1.14.99.29] </span></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=4d50 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4d50 OCA], [https://pdbe.org/4d50 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4d50 RCSB], [https://www.ebi.ac.uk/pdbsum/4d50 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4d50 ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4d50 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4d50 OCA], [http://pdbe.org/4d50 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4d50 RCSB], [http://www.ebi.ac.uk/pdbsum/4d50 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4d50 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/DOHH_HUMAN DOHH_HUMAN]] Catalyzes the hydroxylation of the N(6)-(4-aminobutyl)-L-lysine intermediate to form hypusine, an essential post-translational modification only found in mature eIF-5A factor.[HAMAP-Rule:MF_03101]<ref>PMID:16371467</ref> <ref>PMID:19706422</ref> | + | [https://www.uniprot.org/uniprot/DOHH_HUMAN DOHH_HUMAN] Catalyzes the hydroxylation of the N(6)-(4-aminobutyl)-L-lysine intermediate to form hypusine, an essential post-translational modification only found in mature eIF-5A factor.[HAMAP-Rule:MF_03101]<ref>PMID:16371467</ref> <ref>PMID:19706422</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Deoxyhypusine monooxygenase]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Han, Z]] | + | [[Category: Large Structures]] |
| - | [[Category: Hilgenfeld, R]] | + | [[Category: Han Z]] |
| - | [[Category: Sakai, N]] | + | [[Category: Hilgenfeld R]] |
| - | [[Category: Oxidoreductase]] | + | [[Category: Sakai N]] |
| Structural highlights
Function
DOHH_HUMAN Catalyzes the hydroxylation of the N(6)-(4-aminobutyl)-L-lysine intermediate to form hypusine, an essential post-translational modification only found in mature eIF-5A factor.[HAMAP-Rule:MF_03101][1] [2]
Publication Abstract from PubMed
Deoxyhypusine hydroxylase (DOHH) is a non-heme diiron enzyme involved in the posttranslational modification of a critical lysine residue of eukaryotic translation initiation factor 5A (eIF-5A) to yield the unusual amino acid residue hypusine. This modification is essential for the role of eIF-5A in translation and in nuclear export of a group of specific mRNAs. The diiron center of human DOHH (hDOHH) forms a peroxo-diiron(III) intermediate (hDOHHperoxo) when its reduced form reacts with O2. hDOHHperoxo has a lifetime exceeding that of the peroxo intermediates of other diiron enzymes by several orders of magnitude. Here we report the 1.7-A crystal structures of hDOHHperoxo and a complex with glycerol. The structure of hDOHHperoxo reveals the presence of a mu-1,2-peroxo-diiron(III) species at the active site. Augmented by UV/Vis and Mossbauer spectroscopic studies, the crystal structures offer explanations for the extreme longevity of hDOHHperoxo and illustrate how the enzyme specifically recognizes its only substrate, deoxyhypusine-eIF-5A.
Crystal Structure of the Peroxo-diiron(III) Intermediate of Deoxyhypusine Hydroxylase, an Oxygenase Involved in Hypusination.,Han Z, Sakai N, Bottger LH, Klinke S, Hauber J, Trautwein AX, Hilgenfeld R Structure. 2015 Apr 9. pii: S0969-2126(15)00080-5. doi:, 10.1016/j.str.2015.03.002. PMID:25865244[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Park JH, Aravind L, Wolff EC, Kaevel J, Kim YS, Park MH. Molecular cloning, expression, and structural prediction of deoxyhypusine hydroxylase: a HEAT-repeat-containing metalloenzyme. Proc Natl Acad Sci U S A. 2006 Jan 3;103(1):51-6. Epub 2005 Dec 21. PMID:16371467 doi:http://dx.doi.org/0509348102
- ↑ Vu VV, Emerson JP, Martinho M, Kim YS, Munck E, Park MH, Que L Jr. Human deoxyhypusine hydroxylase, an enzyme involved in regulating cell growth, activates O2 with a nonheme diiron center. Proc Natl Acad Sci U S A. 2009 Sep 1;106(35):14814-9. doi:, 10.1073/pnas.0904553106. Epub 2009 Aug 19. PMID:19706422 doi:http://dx.doi.org/10.1073/pnas.0904553106
- ↑ Han Z, Sakai N, Bottger LH, Klinke S, Hauber J, Trautwein AX, Hilgenfeld R. Crystal Structure of the Peroxo-diiron(III) Intermediate of Deoxyhypusine Hydroxylase, an Oxygenase Involved in Hypusination. Structure. 2015 Apr 9. pii: S0969-2126(15)00080-5. doi:, 10.1016/j.str.2015.03.002. PMID:25865244 doi:http://dx.doi.org/10.1016/j.str.2015.03.002
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