View source for 5y15


==Crystal structure of human DUSP28==
<StructureSection load='5y15' size='340' side='right'caption='[[5y15]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5y15]] is a 2 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=5Y15 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5Y15 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></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=5y15 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5y15 OCA], [https://pdbe.org/5y15 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5y15 RCSB], [https://www.ebi.ac.uk/pdbsum/5y15 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5y15 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/DUS28_HUMAN DUS28_HUMAN] Has phosphatase activity with the synthetic substrate 6,8-difluoro-4-methylumbelliferyl phosphate (in vitro).<ref>PMID:24531476</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Dual-specificity phosphatases (DUSPs) constitute a subfamily of protein tyrosine phosphatases, and are intimately involved in the regulation of diverse parameters of cellular signaling and essential biological processes. DUSP28 is one of the DUSP subfamily members that is known to be implicated in the progression of hepatocellular and pancreatic cancers, and its biological functions and enzymatic characteristics are mostly unknown. Herein, we present the crystal structure of human DUSP28 determined to 2.1 A resolution. DUSP28 adopts a typical DUSP fold, which is composed of a central beta-sheet covered by alpha-helices on both sides and contains a well-ordered activation loop, as do other enzymatically active DUSP proteins. The catalytic pocket of DUSP28, however, appears hardly accessible to a substrate because of the presence of nonconserved bulky residues in the protein tyrosine phosphatase signature motif. Accordingly, DUSP28 showed an atypically low phosphatase activity in the biochemical assay, which was remarkably improved by mutations of two nonconserved residues in the activation loop. Overall, this work reports the structural and biochemical basis for understanding a putative oncological therapeutic target, DUSP28, and also provides a unique mechanism for the regulation of enzymatic activity in the DUSP subfamily proteins.

Structural and biochemical analysis of atypically low dephosphorylating activity of human dual-specificity phosphatase 28.,Ku B, Hong W, Keum CW, Kim M, Ryu H, Jeon D, Shin HC, Kim JH, Kim SJ, Ryu SE PLoS One. 2017 Nov 9;12(11):e0187701. doi: 10.1371/journal.pone.0187701., eCollection 2017. PMID:29121083<ref>PMID:29121083</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5y15" style="background-color:#fffaf0;"></div>

==See Also==
*[[Dual specificity phosphatase 3D structures|Dual specificity phosphatase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Hong W]]
[[Category: Kim SJ]]
[[Category: Ku B]]
[[Category: Ryu SE]]