View source for 6deu


==Human caspase-6 A109T==
<StructureSection load='6deu' size='340' side='right'caption='[[6deu]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6deu]] 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=6DEU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6DEU 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]] 2.796&#8491;</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=6deu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6deu OCA], [https://pdbe.org/6deu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6deu RCSB], [https://www.ebi.ac.uk/pdbsum/6deu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6deu ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CASP6_HUMAN CASP6_HUMAN] Involved in the activation cascade of caspases responsible for apoptosis execution. Cleaves poly(ADP-ribose) polymerase in vitro, as well as lamins. Overexpression promotes programmed cell death.
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== Publication Abstract from PubMed ==
Caspase-6 is a cysteine protease that plays essential roles in programmed cell death, axonal degeneration, and development. The excess neuronal activity of Caspase-6 is associated with Alzheimer disease neuropathology and age-dependent cognitive impairment. Caspase-6 inhibition is a promising strategy to stop early stage neurodegenerative events, yet finding potent and selective Caspase-6 inhibitors has been a challenging task due to the overlapping structural and functional similarities between caspase family members. Here, we investigated how four rare non-synonymous missense single-nucleotide polymorphisms (SNPs), resulting in amino acid substitutions outside human Caspase-6 active site, affect enzyme structure and catalytic efficiency. Three investigated SNPs were found to align with a putative allosteric pocket with low sequence conservation among human caspases. Virtual screening of 57,700 compounds against the putative Caspase-6 allosteric pocket, followed by in vitro testing of the best virtual hits in recombinant human Caspase-6 activity assays identified novel allosteric Caspase-6 inhibitors with IC50 and Ki values ranging from ~2 to 13 microM. This report may pave the way towards the development and optimisation of novel small molecule allosteric Caspase-6 inhibitors and illustrates that functional characterisation of rare natural variants holds promise for the identification of allosteric sites on other therapeutic targets in drug discovery.

Identification of Allosteric Inhibitors against Active Caspase-6.,Tubeleviciute-Aydin A, Beautrait A, Lynham J, Sharma G, Gorelik A, Deny LJ, Soya N, Lukacs GL, Nagar B, Marinier A, LeBlanc AC Sci Rep. 2019 Apr 2;9(1):5504. doi: 10.1038/s41598-019-41930-7. PMID:30940883<ref>PMID:30940883</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 6deu" style="background-color:#fffaf0;"></div>

==See Also==
*[[Caspase 3D structures|Caspase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Beautrait A]]
[[Category: Deny LJ]]
[[Category: Gorelik A]]
[[Category: LeBlanc AC]]
[[Category: Lukacs GL]]
[[Category: Lynham J]]
[[Category: Marinier A]]
[[Category: Nagar B]]
[[Category: Sharma G]]
[[Category: Soya N]]
[[Category: Tubeleviciute-Aydin A]]