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| ==Pyrococcus horikoshii acylaminoacyl peptidase (uncomplexed)== | | ==Pyrococcus horikoshii acylaminoacyl peptidase (uncomplexed)== |
| <StructureSection load='4hxe' size='340' side='right' caption='[[4hxe]], [[Resolution|resolution]] 1.91Å' scene=''> | | <StructureSection load='4hxe' size='340' side='right'caption='[[4hxe]], [[Resolution|resolution]] 1.91Å' scene=''> |
| == Structural highlights == | | == Structural highlights == |
| <table><tr><td colspan='2'>[[4hxe]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pyrho Pyrho]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HXE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4HXE FirstGlance]. <br> | | <table><tr><td colspan='2'>[[4hxe]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_horikoshii_OT3 Pyrococcus horikoshii OT3]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HXE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4HXE FirstGlance]. <br> |
| </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HEZ:HEXANE-1,6-DIOL'>HEZ</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.91Å</td></tr> |
| <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4hxf|4hxf]], [[4hxg|4hxg]]</td></tr>
| | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEZ:HEXANE-1,6-DIOL'>HEZ</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> |
| <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PH0594 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=70601 PYRHO])</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=4hxe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hxe OCA], [https://pdbe.org/4hxe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4hxe RCSB], [https://www.ebi.ac.uk/pdbsum/4hxe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4hxe ProSAT]</span></td></tr> |
| <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Acylaminoacyl-peptidase Acylaminoacyl-peptidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.19.1 3.4.19.1] </span></td></tr>
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| <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=4hxe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hxe OCA], [http://pdbe.org/4hxe PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4hxe RCSB], [http://www.ebi.ac.uk/pdbsum/4hxe PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4hxe ProSAT]</span></td></tr> | |
| </table> | | </table> |
| <div style="background-color:#fffaf0;">
| | == Function == |
| == Publication Abstract from PubMed == | | [https://www.uniprot.org/uniprot/O58323_PYRHO O58323_PYRHO] |
| Oligopeptidases impose a size limitation on their substrates, the mechanism of which has long been in debate. Here we present the structure of a hexameric serine protease, an oligopeptidase from Pyrococcus horikoshii (PhAAP), revealing a complex, self-compartmentalized inner space, where substrates may access the monomer active sites passing through a double-gated "check-in" system: first passing through a pore on the hexamer surface, then turning to enter through an even smaller opening at the monomers' domain-interface. This substrate screening strategy is unique within the family. We found that among oligopeptidases a member of catalytic apparatus is positioned near an amylogenic beta-edge, which needs to be protected to prevent aggregation and found different strategies applied to such end. We propose that self-assembly within the family results in characteristically different substrate selection mechanisms coupled to different multimerization states.
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| A self-compartmentalizing hexamer serine protease from Pyrococcus horikoshii - substrate selection achieved through multimerization.,Menyhard DK, Kiss-Szeman A, Tichy-Racs E, Hornung B, Radi K, Szeltner Z, Domokos K, Szamosi I, Naray-Szabo G, Polgar L, Harmat V J Biol Chem. 2013 Apr 30. PMID:23632025<ref>PMID:23632025</ref>
| | ==See Also== |
| | | *[[Acylaminoacyl peptidase 3D structures|Acylaminoacyl peptidase 3D structures]] |
| From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| </div>
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| <div class="pdbe-citations 4hxe" style="background-color:#fffaf0;"></div>
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| == References == | |
| <references/>
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| __TOC__ | | __TOC__ |
| </StructureSection> | | </StructureSection> |
| [[Category: Acylaminoacyl-peptidase]] | | [[Category: Large Structures]] |
| [[Category: Pyrho]] | | [[Category: Pyrococcus horikoshii OT3]] |
| [[Category: Domokos, K]] | | [[Category: Domokos K]] |
| [[Category: Harmat, V]] | | [[Category: Harmat V]] |
| [[Category: Hornung, B]] | | [[Category: Hornung B]] |
| [[Category: Kiss-Szeman, A]] | | [[Category: Kiss-Szeman A]] |
| [[Category: Menyhard, D K]] | | [[Category: Menyhard DK]] |
| [[Category: Naray-Szabo, G]] | | [[Category: Naray-Szabo G]] |
| [[Category: Polgar, L]] | | [[Category: Polgar L]] |
| [[Category: Radi, K]] | | [[Category: Radi K]] |
| [[Category: Szamosi, I]] | | [[Category: Szamosi I]] |
| [[Category: Szeltner, Z]] | | [[Category: Szeltner Z]] |
| [[Category: Tichy-Racs, E]] | | [[Category: Tichy-Racs E]] |
| [[Category: Alpha/beta hyrdolase fold]]
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| [[Category: Beta-propeller]]
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| [[Category: Hydrolase]]
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| [[Category: Self-compartmentalization]]
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