8a0e

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Current revision (06:26, 7 April 2023) (edit) (undo)
 
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'''Unreleased structure'''
 
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The entry 8a0e is ON HOLD until Paper Publication
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==CryoEM structure of DHS-eIF5A1 complex==
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<StructureSection load='8a0e' size='340' side='right'caption='[[8a0e]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[8a0e]] is a 5 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=8A0E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8A0E FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CSS:S-MERCAPTOCYSTEINE'>CSS</scene>, <scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene>, <scene name='pdbligand=SPD:SPERMIDINE'>SPD</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8a0e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8a0e OCA], [https://pdbe.org/8a0e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8a0e RCSB], [https://www.ebi.ac.uk/pdbsum/8a0e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8a0e ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/DHYS_HUMAN DHYS_HUMAN] Catalyzes the NAD-dependent oxidative cleavage of spermidine and the subsequent transfer of the butylamine moiety of spermidine to the epsilon-amino group of a specific lysine residue of the eIF-5A precursor protein to form the intermediate deoxyhypusine residue.
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Hypusination is a unique post-translational modification of the eukaryotic translation factor 5A (eIF5A) that is essential for overcoming ribosome stalling at polyproline sequence stretches. The initial step of hypusination, the formation of deoxyhypusine, is catalyzed by deoxyhypusine synthase (DHS), however, the molecular details of the DHS-mediated reaction remained elusive. Recently, patient-derived variants of DHS and eIF5A have been linked to rare neurodevelopmental disorders. Here, we present the cryo-EM structure of the human eIF5A-DHS complex at 2.8 A resolution and a crystal structure of DHS trapped in the key reaction transition state. Furthermore, we show that disease-associated DHS variants influence the complex formation and hypusination efficiency. Hence, our work dissects the molecular details of the deoxyhypusine synthesis reaction and reveals how clinically-relevant mutations affect this crucial cellular process.
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Authors:
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Cryo-EM structure of human eIF5A-DHS complex reveals the molecular basis of hypusination-associated neurodegenerative disorders.,Wator E, Wilk P, Biela A, Rawski M, Zak KM, Steinchen W, Bange G, Glatt S, Grudnik P Nat Commun. 2023 Mar 27;14(1):1698. doi: 10.1038/s41467-023-37305-2. PMID:36973244<ref>PMID:36973244</ref>
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Description:
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[Category: Unreleased Structures]]
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</div>
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<div class="pdbe-citations 8a0e" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Homo sapiens]]
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[[Category: Large Structures]]
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[[Category: Biela AP]]
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[[Category: Grudnik P]]
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[[Category: Rawski M]]
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[[Category: Wator E]]
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[[Category: Wilk P]]

Current revision

CryoEM structure of DHS-eIF5A1 complex

PDB ID 8a0e

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