4dhi

From Proteopedia

(Difference between revisions)

Revision as of 21:27, 4 August 2016

Structure of C. elegans OTUB1 bound to human UBC13

Structural highlights

4dhi is a 2 chain structure with sequence from Caeel and Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	4dhj, 4dhz
Gene:	otub-1, C25D7.8 (CAEEL), UBE2N, BLU (HUMAN)
Activity:	Ubiquitinyl hydrolase 1, with EC number 3.4.19.12
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[OTUBL_CAEEL] Hydrolase that can remove conjugated ubiquitin from proteins and plays an important regulatory role at the level of protein turnover by preventing degradation. Specifically cleaves 'Lys-48'-linked polyubiquitin.^[1] [UBE2N_HUMAN] The UBE2V1-UBE2N and UBE2V2-UBE2N heterodimers catalyze the synthesis of non-canonical 'Lys-63'-linked polyubiquitin chains. This type of polyubiquitination does not lead to protein degradation by the proteasome. Mediates transcriptional activation of target genes. Plays a role in the control of progress through the cell cycle and differentiation. Plays a role in the error-free DNA repair pathway and contributes to the survival of cells after DNA damage. Acts together with the E3 ligases, HLTF and SHPRH, in the 'Lys-63'-linked poly-ubiquitination of PCNA upon genotoxic stress, which is required for DNA repair. Appears to act together with E3 ligase RNF5 in the 'Lys-63'-linked polyubiquitination of JKAMP thereby regulating JKAMP function by decreasing its association with components of the proteasome and ERAD. Promotes TRIM5 capsid-specific restriction activity and the UBE2V1-UBE2N heterodimer acts in concert with TRIM5 to generate 'Lys-63'-linked polyubiquitin chains which activate the MAP3K7/TAK1 complex which in turn results in the induction and expression of NF-kappa-B and MAPK-responsive inflammatory genes (By similarity).^[2] ^[3] ^[4] ^[5] ^[6]

Publication Abstract from PubMed

Histones are ubiquitinated in response to DNA double-strand breaks (DSB), promoting recruitment of repair proteins to chromatin. UBC13 (also known as UBE2N) is a ubiquitin-conjugating enzyme (E2) that heterodimerizes with UEV1A (also known as UBE2V1) and synthesizes K63-linked polyubiquitin (K63Ub) chains at DSB sites in concert with the ubiquitin ligase (E3), RNF168 (ref. 3). K63Ub synthesis is regulated in a non-canonical manner by the deubiquitinating enzyme, OTUB1 (OTU domain-containing ubiquitin aldehyde-binding protein 1), which binds preferentially to the UBC13 approximately Ub thiolester. Residues amino-terminal to the OTU domain, which had been implicated in ubiquitin binding, are required for binding to UBC13 approximately Ub and inhibition of K63Ub synthesis. Here we describe structural and biochemical studies elucidating how OTUB1 inhibits UBC13 and other E2 enzymes. We unexpectedly find that OTUB1 binding to UBC13 approximately Ub is allosterically regulated by free ubiquitin, which binds to a second site in OTUB1 and increases its affinity for UBC13 approximately Ub, while at the same time disrupting interactions with UEV1A in a manner that depends on the OTUB1 N terminus. Crystal structures of an OTUB1-UBC13 complex and of OTUB1 bound to ubiquitin aldehyde and a chemical UBC13 approximately Ub conjugate show that binding of free ubiquitin to OTUB1 triggers conformational changes in the OTU domain and formation of a ubiquitin-binding helix in the N terminus, thus promoting binding of the conjugated donor ubiquitin in UBC13 approximately Ub to OTUB1. The donor ubiquitin thus cannot interact with the E2 enzyme, which has been shown to be important for ubiquitin transfer. The N-terminal helix of OTUB1 is positioned to interfere with UEV1A binding to UBC13, as well as with attack on the thiolester by an acceptor ubiquitin, thereby inhibiting K63Ub synthesis. OTUB1 binding also occludes the RING E3 binding site on UBC13, thus providing a further component of inhibition. The general features of the inhibition mechanism explain how OTUB1 inhibits other E2 enzymes in a non-catalytic manner.

The mechanism of OTUB1-mediated inhibition of ubiquitination.,Wiener R, Zhang X, Wang T, Wolberger C Nature. 2012 Feb 22. doi: 10.1038/nature10911. PMID:22367539^[7]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Wang T, Yin L, Cooper EM, Lai MY, Dickey S, Pickart CM, Fushman D, Wilkinson KD, Cohen RE, Wolberger C. Evidence for bidentate substrate binding as the basis for the K48 linkage specificity of otubain 1. J Mol Biol. 2009 Mar 6;386(4):1011-23. doi: 10.1016/j.jmb.2008.12.085. Epub 2009 , Jan 13. PMID:19211026 doi:10.1016/j.jmb.2008.12.085
↑ Hofmann RM, Pickart CM. Noncanonical MMS2-encoded ubiquitin-conjugating enzyme functions in assembly of novel polyubiquitin chains for DNA repair. Cell. 1999 Mar 5;96(5):645-53. PMID:10089880
↑ Bothos J, Summers MK, Venere M, Scolnick DM, Halazonetis TD. The Chfr mitotic checkpoint protein functions with Ubc13-Mms2 to form Lys63-linked polyubiquitin chains. Oncogene. 2003 Oct 16;22(46):7101-7. PMID:14562038 doi:10.1038/sj.onc.1206831
↑ Tcherpakov M, Delaunay A, Toth J, Kadoya T, Petroski MD, Ronai ZA. Regulation of endoplasmic reticulum-associated degradation by RNF5-dependent ubiquitination of JNK-associated membrane protein (JAMP). J Biol Chem. 2009 May 1;284(18):12099-109. doi: 10.1074/jbc.M808222200. Epub 2009, Mar 6. PMID:19269966 doi:10.1074/jbc.M808222200
↑ David Y, Ziv T, Admon A, Navon A. The E2 ubiquitin conjugating enzymes direct polyubiquitination to preferred lysines. J Biol Chem. 2010 Jan 8. PMID:20061386 doi:M109.089003
↑ Pertel T, Hausmann S, Morger D, Zuger S, Guerra J, Lascano J, Reinhard C, Santoni FA, Uchil PD, Chatel L, Bisiaux A, Albert ML, Strambio-De-Castillia C, Mothes W, Pizzato M, Grutter MG, Luban J. TRIM5 is an innate immune sensor for the retrovirus capsid lattice. Nature. 2011 Apr 21;472(7343):361-5. doi: 10.1038/nature09976. PMID:21512573 doi:10.1038/nature09976
↑ Wiener R, Zhang X, Wang T, Wolberger C. The mechanism of OTUB1-mediated inhibition of ubiquitination. Nature. 2012 Feb 22. doi: 10.1038/nature10911. PMID:22367539 doi:10.1038/nature10911

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4dhi"

@@ Line 1: / Line 1: @@
 ==Structure of C. elegans OTUB1 bound to human UBC13==
 <StructureSection load='4dhi' size='340' side='right' caption='[[4dhi]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4dhi]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Caenorhabditis_elegans Caenorhabditis elegans] and [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DHI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4DHI FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4dhi]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Caeel Caeel] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DHI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4DHI FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4dhj|4dhj]], [[4dhz|4dhz]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">otub-1, C25D7.8 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=6239 Caenorhabditis elegans]), UBE2N, BLU ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">otub-1, C25D7.8 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=6239 CAEEL]), UBE2N, BLU ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ubiquitinyl_hydrolase_1 Ubiquitinyl hydrolase 1], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.19.12 3.4.19.12] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4dhi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4dhi OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4dhi RCSB], [http://www.ebi.ac.uk/pdbsum/4dhi PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4dhi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4dhi OCA], [http://pdbe.org/4dhi PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4dhi RCSB], [http://www.ebi.ac.uk/pdbsum/4dhi PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4dhi ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/UBE2N_HUMAN UBE2N_HUMAN]] The UBE2V1-UBE2N and UBE2V2-UBE2N heterodimers catalyze the synthesis of non-canonical 'Lys-63'-linked polyubiquitin chains. This type of polyubiquitination does not lead to protein degradation by the proteasome. Mediates transcriptional activation of target genes. Plays a role in the control of progress through the cell cycle and differentiation. Plays a role in the error-free DNA repair pathway and contributes to the survival of cells after DNA damage. Acts together with the E3 ligases, HLTF and SHPRH, in the 'Lys-63'-linked poly-ubiquitination of PCNA upon genotoxic stress, which is required for DNA repair. Appears to act together with E3 ligase RNF5 in the 'Lys-63'-linked polyubiquitination of JKAMP thereby regulating JKAMP function by decreasing its association with components of the proteasome and ERAD. Promotes TRIM5 capsid-specific restriction activity and the UBE2V1-UBE2N heterodimer acts in concert with TRIM5 to generate 'Lys-63'-linked polyubiquitin chains which activate the MAP3K7/TAK1 complex which in turn results in the induction and expression of NF-kappa-B and MAPK-responsive inflammatory genes (By similarity).<ref>PMID:10089880</ref> <ref>PMID:14562038</ref> <ref>PMID:19269966</ref> <ref>PMID:20061386</ref> <ref>PMID:21512573</ref>
+[[http://www.uniprot.org/uniprot/OTUBL_CAEEL OTUBL_CAEEL]] Hydrolase that can remove conjugated ubiquitin from proteins and plays an important regulatory role at the level of protein turnover by preventing degradation. Specifically cleaves 'Lys-48'-linked polyubiquitin.<ref>PMID:19211026</ref>  [[http://www.uniprot.org/uniprot/UBE2N_HUMAN UBE2N_HUMAN]] The UBE2V1-UBE2N and UBE2V2-UBE2N heterodimers catalyze the synthesis of non-canonical 'Lys-63'-linked polyubiquitin chains. This type of polyubiquitination does not lead to protein degradation by the proteasome. Mediates transcriptional activation of target genes. Plays a role in the control of progress through the cell cycle and differentiation. Plays a role in the error-free DNA repair pathway and contributes to the survival of cells after DNA damage. Acts together with the E3 ligases, HLTF and SHPRH, in the 'Lys-63'-linked poly-ubiquitination of PCNA upon genotoxic stress, which is required for DNA repair. Appears to act together with E3 ligase RNF5 in the 'Lys-63'-linked polyubiquitination of JKAMP thereby regulating JKAMP function by decreasing its association with components of the proteasome and ERAD. Promotes TRIM5 capsid-specific restriction activity and the UBE2V1-UBE2N heterodimer acts in concert with TRIM5 to generate 'Lys-63'-linked polyubiquitin chains which activate the MAP3K7/TAK1 complex which in turn results in the induction and expression of NF-kappa-B and MAPK-responsive inflammatory genes (By similarity).<ref>PMID:10089880</ref> <ref>PMID:14562038</ref> <ref>PMID:19269966</ref> <ref>PMID:20061386</ref> <ref>PMID:21512573</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 18: / Line 19: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4dhi" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 26: / Line 28: @@
 __TOC__
 </StructureSection>
-[[Category: Caenorhabditis elegans]]
+[[Category: Caeel]]
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Ubiquitinyl hydrolase 1]]
 [[Category: Wang, T]]

4dhi

From Proteopedia

Revision as of 21:27, 4 August 2016

Structure of C. elegans OTUB1 bound to human UBC13

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox