3pe3

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[[Image:3pe3.png|left|200px]]
 
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==Structure of human O-GlcNAc transferase and its complex with a peptide substrate==
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The line below this paragraph, containing "STRUCTURE_3pe3", creates the "Structure Box" on the page.
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<StructureSection load='3pe3' size='340' side='right'caption='[[3pe3]], [[Resolution|resolution]] 2.78&Aring;' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[3pe3]] is a 4 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=3PE3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3PE3 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.78&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=UDP:URIDINE-5-DIPHOSPHATE'>UDP</scene></td></tr>
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{{STRUCTURE_3pe3| PDB=3pe3 | SCENE= }}
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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=3pe3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3pe3 OCA], [https://pdbe.org/3pe3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3pe3 RCSB], [https://www.ebi.ac.uk/pdbsum/3pe3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3pe3 ProSAT]</span></td></tr>
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</table>
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== Disease ==
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[https://www.uniprot.org/uniprot/OGT1_HUMAN OGT1_HUMAN] Regulation of OGT activity and altered O-GlcNAcylations are implicated in diabetes and Alzheimer disease. O-GlcNAcylation of AKT1 affects insulin signaling and, possibly diabetes. Reduced O-GlcNAcylations and resulting increased phosphorylations of MAPT/TAU are observed in Alzheimer disease (AD) brain cerebrum.
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== Function ==
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[https://www.uniprot.org/uniprot/OGT1_HUMAN OGT1_HUMAN] Catalyzes the transfer of a single N-acetylglucosamine from UDP-GlcNAc to a serine or threonine residue in cytoplasmic and nuclear proteins resulting in their modification with a beta-linked N-acetylglucosamine (O-GlcNAc). Glycosylates a large and diverse number of proteins including histone H2B, AKT1, PFKL, KMT2E/MLL5, MAPT/TAU and HCFC1. Can regulate their cellular processes via cross-talk between glycosylation and phosphorylation or by affecting proteolytic processing. Involved in insulin resistance in muscle and adipocyte cells via glycosylating insulin signaling components and inhibiting the 'Thr-308' phosphorylation of AKT1, enhancing IRS1 phosphorylation and attenuating insulin signaling. Involved in glycolysis regulation by mediating glycosylation of 6-phosphofructokinase PFKL, inhibiting its activity. Component of a THAP1/THAP3-HCFC1-OGT complex that is required for the regulation of the transcriptional activity of RRM1. Plays a key role in chromatin structure by mediating O-GlcNAcylation of 'Ser-112' of histone H2B: recruited to CpG-rich transcription start sites of active genes via its interaction with TET proteins (TET1, TET2 or TET3). As part of the NSL complex indirectly involved in acetylation of nucleosomal histone H4 on several lysine residues.<ref>PMID:12150998</ref> <ref>PMID:18288188</ref> <ref>PMID:19451179</ref> <ref>PMID:19377461</ref> <ref>PMID:20018852</ref> <ref>PMID:20018868</ref> <ref>PMID:20200153</ref> <ref>PMID:20824293</ref> <ref>PMID:21285374</ref> <ref>PMID:22121020</ref> <ref>PMID:22923583</ref> <ref>PMID:23353889</ref> <ref>PMID:23222540</ref> <ref>PMID:15361863</ref> <ref>PMID:21240259</ref> Isoform 2: the mitochondrial isoform (mOGT) is cytotoxic and triggers apoptosis in several cell types including INS1, an insulinoma cell line.<ref>PMID:12150998</ref> <ref>PMID:18288188</ref> <ref>PMID:19451179</ref> <ref>PMID:19377461</ref> <ref>PMID:20018852</ref> <ref>PMID:20018868</ref> <ref>PMID:20200153</ref> <ref>PMID:20824293</ref> <ref>PMID:21285374</ref> <ref>PMID:22121020</ref> <ref>PMID:22923583</ref> <ref>PMID:23353889</ref> <ref>PMID:23222540</ref> <ref>PMID:15361863</ref> <ref>PMID:21240259</ref>
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===Structure of human O-GlcNAc transferase and its complex with a peptide substrate===
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==See Also==
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*[[O-GlcNAc transferase 3D structures|O-GlcNAc transferase 3D structures]]
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== References ==
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<references/>
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 21240259 is the PubMed ID number.
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</StructureSection>
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{{ABSTRACT_PUBMED_21240259}}
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==About this Structure==
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[[3pe3]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PE3 OCA].
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==Reference==
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<ref group="xtra">PMID:21240259</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Jiang, J.]]
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[[Category: Large Structures]]
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[[Category: Lazarus, M B.]]
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[[Category: Jiang J]]
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[[Category: Nam, Y.]]
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[[Category: Lazarus MB]]
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[[Category: Sliz, P.]]
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[[Category: Nam Y]]
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[[Category: Walker, S.]]
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[[Category: Sliz P]]
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[[Category: Walker S]]

Current revision

Structure of human O-GlcNAc transferase and its complex with a peptide substrate

PDB ID 3pe3

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