4iwo

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{{STRUCTURE_4iwo| PDB=4iwo | SCENE= }}
 
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===Crystal structure and mechanism of activation of TBK1===
 
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{{ABSTRACT_PUBMED_23453971}}
 
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==Function==
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==Crystal structure and mechanism of activation of TBK1==
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[[http://www.uniprot.org/uniprot/TBK1_HUMAN TBK1_HUMAN]] Serine/threonine kinase that plays an essential role in regulating inflammatory responses to foreign agents. Following activation of toll-like receptors by viral or bacterial components, associates with TRAF3 and TANK and phosphorylates interferon regulatory factors (IRFs) IRF3 and IRF7 as well as DDX3X. This activity allows subsequent homodimerization and nuclear translocation of the IRFs leading to transcriptional activation of pro-inflammatory and antiviral genes including IFN-alpha and IFN-beta. In order to establish such an antiviral state, TBK1 form several different complexes whose composition depends on the type of cell and cellular stimuli. Thus, several scaffolding molecules including FADD, TRADD, MAVS or SINTBAD can be recruited to the TBK1-containing-complexes. Under particular conditions, functions as a NF-kappa-B effector by phosphorylating NF-kappa-B inhibitor alpha/NFKBIA, IKBKB or RELA to translocate NF-Kappa-B to the nucleus. Restricts bacterial proliferation by phosphorylating the autophagy receptor OPTN/Optineurin on 'Ser-177', thus enhancing LC3 binding affinity and antibacterial autophagy. Attenuates retroviral budding by phosphorylating the endosomal sorting complex required for transport-I (ESCRT-I) subunit VPS37C. Phosphorylates and activates AKT1. Phosphorylates Borna disease virus (BDV) P protein.<ref>PMID:10581243</ref> <ref>PMID:10783893</ref> <ref>PMID:11839743</ref> <ref>PMID:12692549</ref> <ref>PMID:12702806</ref> <ref>PMID:14703513</ref> <ref>PMID:15485837</ref> <ref>PMID:15489227</ref> <ref>PMID:15367631</ref> <ref>PMID:18583960</ref> <ref>PMID:21270402</ref> <ref>PMID:21464307</ref> <ref>PMID:21617041</ref> <ref>PMID:21138416</ref>
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<StructureSection load='4iwo' size='340' side='right'caption='[[4iwo]], [[Resolution|resolution]] 2.61&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4iwo]] 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=4IWO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4IWO 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]] 2.61&#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=1H4:N-{3-[(5-CYCLOPROPYL-2-{[3-(2-OXOPYRROLIDIN-1-YL)PHENYL]AMINO}PYRIMIDIN-4-YL)AMINO]PROPYL}CYCLOBUTANECARBOXAMIDE'>1H4</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=4iwo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4iwo OCA], [https://pdbe.org/4iwo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4iwo RCSB], [https://www.ebi.ac.uk/pdbsum/4iwo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4iwo ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TBK1_HUMAN TBK1_HUMAN] Serine/threonine kinase that plays an essential role in regulating inflammatory responses to foreign agents. Following activation of toll-like receptors by viral or bacterial components, associates with TRAF3 and TANK and phosphorylates interferon regulatory factors (IRFs) IRF3 and IRF7 as well as DDX3X. This activity allows subsequent homodimerization and nuclear translocation of the IRFs leading to transcriptional activation of pro-inflammatory and antiviral genes including IFN-alpha and IFN-beta. In order to establish such an antiviral state, TBK1 form several different complexes whose composition depends on the type of cell and cellular stimuli. Thus, several scaffolding molecules including FADD, TRADD, MAVS or SINTBAD can be recruited to the TBK1-containing-complexes. Under particular conditions, functions as a NF-kappa-B effector by phosphorylating NF-kappa-B inhibitor alpha/NFKBIA, IKBKB or RELA to translocate NF-Kappa-B to the nucleus. Restricts bacterial proliferation by phosphorylating the autophagy receptor OPTN/Optineurin on 'Ser-177', thus enhancing LC3 binding affinity and antibacterial autophagy. Attenuates retroviral budding by phosphorylating the endosomal sorting complex required for transport-I (ESCRT-I) subunit VPS37C. Phosphorylates and activates AKT1. Phosphorylates Borna disease virus (BDV) P protein.<ref>PMID:10581243</ref> <ref>PMID:10783893</ref> <ref>PMID:11839743</ref> <ref>PMID:12692549</ref> <ref>PMID:12702806</ref> <ref>PMID:14703513</ref> <ref>PMID:15485837</ref> <ref>PMID:15489227</ref> <ref>PMID:15367631</ref> <ref>PMID:18583960</ref> <ref>PMID:21270402</ref> <ref>PMID:21464307</ref> <ref>PMID:21617041</ref> <ref>PMID:21138416</ref>
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==About this Structure==
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==See Also==
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[[4iwo]] is a 1 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=4IWO OCA].
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*[[Serine/threonine protein kinase 3D structures|Serine/threonine protein kinase 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:023453971</ref><references group="xtra"/><references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Non-specific serine/threonine protein kinase]]
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[[Category: Large Structures]]
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[[Category: Larabi, A.]]
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[[Category: Larabi A]]
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[[Category: Panne, D.]]
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[[Category: Panne D]]
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[[Category: Atp binding]]
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[[Category: Kinase]]
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[[Category: Transferase-transferase inhibitor complex]]
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Current revision

Crystal structure and mechanism of activation of TBK1

PDB ID 4iwo

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