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1tff

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Revision as of 15:41, 27 October 2021

Structure of Otubain-2

Structural highlights

1tff is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
NonStd Res:
Gene:	OTUB2, OTB2, OTU2, C14ORF137 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[OTUB2_HUMAN] Hydrolase that can remove conjugated ubiquitin from proteins in vitro and may therefore play an important regulatory role at the level of protein turnover by preventing degradation. Mediates deubiquitination of both 'Lys-48'- and 'Lys-63'-linked polyubiquitin chains, with a preference for 'Lys-63'-linked polyubiquitin chains.^[1] ^[2]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Ubiquitylation, the modification of cellular proteins by the covalent attachment of ubiquitin, is critical for diverse biological processes including cell cycle progression, signal transduction and stress response. This process can be reversed and regulated by a group of proteases called deubiquitylating enzymes (DUBs). Otubains are a recently identified family of DUBs that belong to the ovarian tumour (OTU) superfamily of proteins. Here, we report the first crystal structure of an OTU superfamily protein, otubain 2, at 2.1 A resolution and propose a model for otubain-ubiquitin binding on the basis of other DUB structures. Although otubain 2 is a member of the cysteine protease superfamily of folds, its crystal structure shows a novel fold for DUBs. Moreover, the active-site cleft is sterically occluded by a novel loop conformation resulting in an oxyanion hole, which consists uniquely of backbone amides, rather than the composite backbone/side-chain substructures seen in other DUBs and cysteine proteases. Furthermore, the residues that orient and stabilize the active-site histidine of otubain 2 are different from other cysteine proteases. This reorganization of the active-site topology provides a possible explanation for the low turnover and substrate specificity of the otubains.

Crystal structure of human otubain 2.,Nanao MH, Tcherniuk SO, Chroboczek J, Dideberg O, Dessen A, Balakirev MY EMBO Rep. 2004 Aug;5(8):783-8. Epub 2004 Jul 16. PMID:15258613^[3]

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

References

↑ Balakirev MY, Tcherniuk SO, Jaquinod M, Chroboczek J. Otubains: a new family of cysteine proteases in the ubiquitin pathway. EMBO Rep. 2003 May;4(5):517-22. PMID:12704427 doi:10.1038/sj.embor.embor824
↑ Edelmann MJ, Iphofer A, Akutsu M, Altun M, di Gleria K, Kramer HB, Fiebiger E, Dhe-Paganon S, Kessler BM. Structural basis and specificity of human otubain 1-mediated deubiquitination. Biochem J. 2009 Mar 1;418(2):379-90. PMID:18954305 doi:10.1042/BJ20081318
↑ Nanao MH, Tcherniuk SO, Chroboczek J, Dideberg O, Dessen A, Balakirev MY. Crystal structure of human otubain 2. EMBO Rep. 2004 Aug;5(8):783-8. Epub 2004 Jul 16. PMID:15258613 doi:http://dx.doi.org/10.1038/sj.embor.7400201

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1tff"

@@ Line 3: / Line 3: @@
 <StructureSection load='1tff' size='340' side='right'caption='[[1tff]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1tff]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TFF OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1TFF FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1tff]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TFF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TFF FirstGlance]. <br>
 </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">OTUB2, OTB2, OTU2, C14ORF137 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">OTUB2, OTB2, OTU2, C14ORF137 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1tff FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tff OCA], [http://pdbe.org/1tff PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1tff RCSB], [http://www.ebi.ac.uk/pdbsum/1tff PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1tff ProSAT]</span></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=1tff FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tff OCA], [https://pdbe.org/1tff PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1tff RCSB], [https://www.ebi.ac.uk/pdbsum/1tff PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1tff ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/OTUB2_HUMAN OTUB2_HUMAN]] Hydrolase that can remove conjugated ubiquitin from proteins in vitro and may therefore play an important regulatory role at the level of protein turnover by preventing degradation. Mediates deubiquitination of both 'Lys-48'- and 'Lys-63'-linked polyubiquitin chains, with a preference for 'Lys-63'-linked polyubiquitin chains.<ref>PMID:12704427</ref> <ref>PMID:18954305</ref>
+[[https://www.uniprot.org/uniprot/OTUB2_HUMAN OTUB2_HUMAN]] Hydrolase that can remove conjugated ubiquitin from proteins in vitro and may therefore play an important regulatory role at the level of protein turnover by preventing degradation. Mediates deubiquitination of both 'Lys-48'- and 'Lys-63'-linked polyubiquitin chains, with a preference for 'Lys-63'-linked polyubiquitin chains.<ref>PMID:12704427</ref> <ref>PMID:18954305</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]

1tff

From Proteopedia

Revision as of 15:41, 27 October 2021

Structure of Otubain-2

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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