View source for 1wx9


==Solution Structure of the N-terminal Ubiquitin-like Domain in the Human BAT3 Protein==
<StructureSection load='1wx9' size='340' side='right'caption='[[1wx9]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1wx9]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WX9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1WX9 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1wx9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wx9 OCA], [https://pdbe.org/1wx9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1wx9 RCSB], [https://www.ebi.ac.uk/pdbsum/1wx9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1wx9 ProSAT], [https://www.topsan.org/Proteins/RSGI/1wx9 TOPSAN]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/BAG6_HUMAN BAG6_HUMAN] Chaperone that plays a key role in various processes such as apoptosis, insertion of tail-anchored (TA) membrane proteins to the endoplasmic reticulum membrane and regulation of chromatin. Acts in part by regulating stability of proteins and their degradation by the proteasome. Participates in endoplasmic reticulum stress-induced apoptosis via its interaction with AIFM1/AIF by regulating AIFM1/AIF stability and preventing its degradation. Also required during spermatogenesis for synaptonemal complex assembly via its interaction with HSPA2, by inhibiting polyubiquitination and subsequent proteasomal degradation of HSPA2. Required for selective ubiquitin-mediated degradation of defective nascent chain polypeptides by the proteasome. In this context, may play a role in immuno-proteasomes to generate antigenic peptides via targeted degradation, thereby playing a role in antigen presentation in immune response. Key component of the BAG6/BAT3 complex, a cytosolic multiprotein complex involved in the post-translational delivery of tail-anchored (TA) membrane proteins to the endoplasmic reticulum membrane. TA membrane proteins, also named type II transmembrane proteins, contain a single C-terminal transmembrane region. BAG6/BAT3 acts by facilitating TA membrane proteins capture by ASNA1/TRC40: it is recruited to ribosomes synthesizing membrane proteins, interacts with the transmembrane region of newly released TA proteins and transfers them to ASNA1/TRC40 for targeting to the endoplasmic reticulum membrane.<ref>PMID:14960581</ref> <ref>PMID:17403783</ref> <ref>PMID:18055229</ref> <ref>PMID:18765639</ref> <ref>PMID:18852879</ref> <ref>PMID:20516149</ref> <ref>PMID:20676083</ref>   Involved in DNA damage-induced apoptosis: following DNA damage, accumulates in the nucleus and forms a complex with p300/EP300, enhancing p300/EP300-mediated p53/TP53 acetylation leading to increase p53/TP53 transcriptional activity. When nuclear, may also act as a component of some chromatin regulator complex that regulates histone 3 'Lys-4' dimethylation (H3K4me2).<ref>PMID:14960581</ref> <ref>PMID:17403783</ref> <ref>PMID:18055229</ref> <ref>PMID:18765639</ref> <ref>PMID:18852879</ref> <ref>PMID:20516149</ref> <ref>PMID:20676083</ref>   Can be released from tumor and dendritic cells in membrane vesicles or exosomes, and engage NCR3 thereby promoting natural killer cell (NK) activation and cytotoxicity.<ref>PMID:14960581</ref> <ref>PMID:17403783</ref> <ref>PMID:18055229</ref> <ref>PMID:18765639</ref> <ref>PMID:18852879</ref> <ref>PMID:20516149</ref> <ref>PMID:20676083</ref> 
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/wx/1wx9_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1wx9 ConSurf].
<div style="clear:both"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Inoue M]]
[[Category: Kigawa T]]
[[Category: Koshiba S]]
[[Category: Saito K]]
[[Category: Yokoyama S]]
[[Category: Zhao C]]