View source for 5za7


==uPA-HMA==
<StructureSection load='5za7' size='340' side='right'caption='[[5za7]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5za7]] is a 1 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=5ZA7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5ZA7 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]] 1.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HMX:3-azanyl-5-(azepan-1-yl)-~{N}-[bis(azanyl)methylidene]-6-chloranyl-pyrazine-2-carboxamide'>HMX</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=5za7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5za7 OCA], [https://pdbe.org/5za7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5za7 RCSB], [https://www.ebi.ac.uk/pdbsum/5za7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5za7 ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/UROK_HUMAN UROK_HUMAN] Defects in PLAU are the cause of Quebec platelet disorder (QPD) [MIM:[https://omim.org/entry/601709 601709]. QPD is an autosomal dominant bleeding disorder due to a gain-of-function defect in fibrinolysis. Although affected individuals do not exhibit systemic fibrinolysis, they show delayed onset bleeding after challenge, such as surgery. The hallmark of the disorder is markedly increased PLAU levels within platelets, which causes intraplatelet plasmin generation and secondary degradation of alpha-granule proteins.<ref>PMID:20007542</ref> 
== Function ==
[https://www.uniprot.org/uniprot/UROK_HUMAN UROK_HUMAN] Specifically cleaves the zymogen plasminogen to form the active enzyme plasmin.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Metastasis is the cause of death in the majority ( approximately 90%) of malignant cancers. The oral potassium-sparing diuretic amiloride and its 5-substituted derivative 5 -N, N-(hexamethylene)amiloride (HMA) reportedly show robust antitumor/metastasis effects in multiple in vitro and animal models. These effects are likely due, at least in part, to inhibition of the urokinase plasminogen activator (uPA), a key protease determinant of cell invasiveness and metastasis. This study reports the discovery of 6-substituted HMA analogs that show nanomolar potency against uPA, high selectivity over related trypsin-like serine proteases, and minimal inhibitory effects against epithelial sodium channels (ENaC), the diuretic and antikaliuretic target of amiloride. Reductions in lung metastases were demonstrated for two analogs in a late-stage experimental mouse metastasis model, and one analog completely inhibited formation of liver metastases in an orthotopic xenograft mouse model of pancreatic cancer. The results support further evaluation of 6-substituted HMA derivatives as uPA-targeting anticancer drugs.

6-Substituted Hexamethylene Amiloride (HMA) Derivatives as Potent and Selective Inhibitors of the Human Urokinase Plasminogen Activator for Use in Cancer.,Buckley BJ, Aboelela A, Minaei E, Jiang LX, Xu Z, Ali U, Fildes K, Cheung CY, Cook SM, Johnson DC, Bachovchin DA, Cook GM, Apte M, Huang M, Ranson M, Kelso MJ J Med Chem. 2018 Sep 27;61(18):8299-8320. doi: 10.1021/acs.jmedchem.8b00838. Epub, 2018 Sep 7. PMID:30130401<ref>PMID:30130401</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5za7" style="background-color:#fffaf0;"></div>

==See Also==
*[[Urokinase 3D Structures|Urokinase 3D Structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Buckley BJ]]
[[Category: Huang MD]]
[[Category: Jiang LG]]
[[Category: Kelso MJ]]
[[Category: Ranson M]]