This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


7un6

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (09:38, 14 February 2024) (edit) (undo)
 
Line 4: Line 4:
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[7un6]] is a 3 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=7UN6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7UN6 FirstGlance]. <br>
<table><tr><td colspan='2'>[[7un6]] is a 3 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=7UN6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7UN6 FirstGlance]. <br>
-
</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=7un6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7un6 OCA], [https://pdbe.org/7un6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7un6 RCSB], [https://www.ebi.ac.uk/pdbsum/7un6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7un6 ProSAT]</span></td></tr>
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.3&#8491;</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=7un6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7un6 OCA], [https://pdbe.org/7un6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7un6 RCSB], [https://www.ebi.ac.uk/pdbsum/7un6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7un6 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
-
[[https://www.uniprot.org/uniprot/UBE2O_HUMAN UBE2O_HUMAN]] E2/E3 hybrid ubiquitin-protein ligase that displays both E2 and E3 ligase activities and mediates monoubiquitination of target proteins (PubMed:23455153, PubMed:24703950). Negatively regulates TRAF6-mediated NF-kappa-B activation independently of its E2 activity (PubMed:23381138). Acts as a positive regulator of BMP7 signaling by mediating monoubiquitination of SMAD6, thereby regulating adipogenesis (PubMed:23455153). Mediates monoubiquitination at different sites of the nuclear localization signal (NLS) of BAP1, leading to cytoplasmic retention of BAP1. Also able to monoubiquitinate the NLS of other chromatin-associated proteins, such as INO80 and CXXC1, affecting their subcellular location (PubMed:24703950). Acts as a regulator of retrograde transport by assisting the TRIM27:MAGEL2 E3 ubiquitin ligase complex to mediate 'Lys-63'-linked ubiquitination of WASHC1, leading to promote endosomal F-actin assembly (PubMed:23452853).<ref>PMID:23381138</ref> <ref>PMID:23452853</ref> <ref>PMID:23455153</ref> <ref>PMID:24703950</ref>
+
[https://www.uniprot.org/uniprot/UBE2O_HUMAN UBE2O_HUMAN] E2/E3 hybrid ubiquitin-protein ligase that displays both E2 and E3 ligase activities and mediates monoubiquitination of target proteins (PubMed:23455153, PubMed:24703950). Negatively regulates TRAF6-mediated NF-kappa-B activation independently of its E2 activity (PubMed:23381138). Acts as a positive regulator of BMP7 signaling by mediating monoubiquitination of SMAD6, thereby regulating adipogenesis (PubMed:23455153). Mediates monoubiquitination at different sites of the nuclear localization signal (NLS) of BAP1, leading to cytoplasmic retention of BAP1. Also able to monoubiquitinate the NLS of other chromatin-associated proteins, such as INO80 and CXXC1, affecting their subcellular location (PubMed:24703950). Acts as a regulator of retrograde transport by assisting the TRIM27:MAGEL2 E3 ubiquitin ligase complex to mediate 'Lys-63'-linked ubiquitination of WASHC1, leading to promote endosomal F-actin assembly (PubMed:23452853).<ref>PMID:23381138</ref> <ref>PMID:23452853</ref> <ref>PMID:23455153</ref> <ref>PMID:24703950</ref>
-
<div style="background-color:#fffaf0;">
+
-
== Publication Abstract from PubMed ==
+
-
The E2/E3 enzyme UBE2O ubiquitylates diverse clients to mediate important processes, including targeting unassembled 'orphan' proteins for quality control and clearing ribosomes during erythropoiesis. How quality-control factors, such as UBE2O, select clients on the basis of heterogeneous features is largely unknown. Here, we show that UBE2O client selection is regulated by ubiquitin binding and a cofactor, NAP1L1. Attaching a single ubiquitin onto a client enhances UBE2O binding and multi-mono-ubiquitylation. UBE2O also repurposes the histone chaperone NAP1L1 as an adapter to recruit a subset of clients. Cryo-EM structures of human UBE2O in complex with NAP1L1 reveal a malleable client recruitment interface that is autoinhibited by the intrinsically reactive UBC domain. Adding a ubiquitylated client identifies a distinct ubiquitin-binding SH3-like domain required for client selection. Our findings reveal how multivalency and a feed-forward mechanism drive the selection of protein quality-control clients.
+
-
 
+
-
Mechanism of client selection by the protein quality-control factor UBE2O.,Yip MCJ, Sedor SF, Shao S Nat Struct Mol Biol. 2022 Aug;29(8):774-780. doi: 10.1038/s41594-022-00807-6., Epub 2022 Aug 1. PMID:35915257<ref>PMID:35915257</ref>
+
-
 
+
-
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+
-
</div>
+
-
<div class="pdbe-citations 7un6" style="background-color:#fffaf0;"></div>
+
== References ==
== References ==
<references/>
<references/>

Current revision

Complex of UBE2O with NAP1L1

PDB ID 7un6

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/7un6"
Personal tools