1cmx

From Proteopedia

(Difference between revisions)

Revision as of 19:19, 10 September 2015

STRUCTURAL BASIS FOR THE SPECIFICITY OF UBIQUITIN C-TERMINAL HYDROLASES

Structural highlights

1cmx is a 4 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
NonStd Res:
Activity:	Ubiquitin thiolesterase, with EC number 3.1.2.15
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[UBL1_YEAST] Deubiquitinating enzyme (DUB) that controls levels of cellular ubiquitin through processing of ubiquitin precursors and ubiquitinated proteins. Thiol protease that recognizes and hydrolyzes a peptide bond at the C-terminal glycine of either ubiquitin or RUB1. Preferentially cleaves ubiquitin from peptides and small adducts.^[1] ^[2] ^[3] ^[4]

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

The release of ubiquitin from attachment to other proteins and adducts is critical for ubiquitin biosynthesis, proteasomal degradation and other cellular processes. De-ubiquitination is accomplished in part by members of the UCH (ubiquitin C-terminal hydrolase) family of enzymes. We have determined the 2.25 A resolution crystal structure of the yeast UCH, Yuh1, in a complex with the inhibitor ubiquitin aldehyde (Ubal). The structure mimics the tetrahedral intermediate in the reaction pathway and explains the very high enzyme specificity. Comparison with a related, unliganded UCH structure indicates that ubiquitin binding is coupled to rearrangements which block the active-site cleft in the absence of authentic substrate. Remarkably, a 21-residue loop that becomes ordered upon binding Ubal lies directly over the active site. Efficiently processed substrates apparently pass through this loop, and constraints on the loop conformation probably function to control UCH specificity.

Structural basis for the specificity of ubiquitin C-terminal hydrolases.,Johnston SC, Riddle SM, Cohen RE, Hill CP EMBO J. 1999 Jul 15;18(14):3877-87. PMID:10406793^[5]

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

References

↑ Liu CC, Miller HI, Kohr WJ, Silber JI. Purification of a ubiquitin protein peptidase from yeast with efficient in vitro assays. J Biol Chem. 1989 Dec 5;264(34):20331-8. PMID:2555355
↑ Linghu B, Callis J, Goebl MG. Rub1p processing by Yuh1p is required for wild-type levels of Rub1p conjugation to Cdc53p. Eukaryot Cell. 2002 Jun;1(3):491-4. PMID:12455997
↑ Yu HA, Kim SG, Kim EJ, Lee WJ, Kim DO, Park K, Park YC, Seo JH. Characterization of ubiquitin C-terminal hydrolase 1 (YUH1) from Saccharomyces cerevisiae expressed in recombinant Escherichia coli. Protein Expr Purif. 2007 Nov;56(1):20-6. Epub 2007 Jul 18. PMID:17709260 doi:http://dx.doi.org/10.1016/j.pep.2007.07.005
↑ Dennissen FJ, Kholod N, Hermes DJ, Kemmerling N, Steinbusch HW, Dantuma NP, van Leeuwen FW. Mutant ubiquitin (UBB+1) associated with neurodegenerative disorders is hydrolyzed by ubiquitin C-terminal hydrolase L3 (UCH-L3). FEBS Lett. 2011 Aug 19;585(16):2568-74. doi: 10.1016/j.febslet.2011.06.037. Epub , 2011 Jul 6. PMID:21762696 doi:http://dx.doi.org/10.1016/j.febslet.2011.06.037
↑ Johnston SC, Riddle SM, Cohen RE, Hill CP. Structural basis for the specificity of ubiquitin C-terminal hydrolases. EMBO J. 1999 Jul 15;18(14):3877-87. PMID:10406793 doi:http://dx.doi.org/10.1093/emboj/18.14.3877

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/1cmx"

@@ Line 5: / Line 5: @@
 </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=GLZ:AMINO-ACETALDEHYDE'>GLZ</scene></td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ubiquitin_thiolesterase Ubiquitin thiolesterase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.2.15 3.1.2.15] </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=1cmx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cmx OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1cmx RCSB], [http://www.ebi.ac.uk/pdbsum/1cmx 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=1cmx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cmx OCA], [http://pdbe.org/1cmx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1cmx RCSB], [http://www.ebi.ac.uk/pdbsum/1cmx PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 27: / Line 27: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1cmx" style="background-color:#fffaf0;"></div>
 ==See Also==

1cmx

From Proteopedia

Revision as of 19:19, 10 September 2015

STRUCTURAL BASIS FOR THE SPECIFICITY OF UBIQUITIN C-TERMINAL HYDROLASES

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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