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| | <StructureSection load='5lcn' size='340' side='right'caption='[[5lcn]], [[Resolution|resolution]] 2.60Å' scene=''> | | <StructureSection load='5lcn' size='340' side='right'caption='[[5lcn]], [[Resolution|resolution]] 2.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5lcn]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Pyrfu Pyrfu]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5LCN OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5LCN FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5lcn]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_furiosus_DSM_3638 Pyrococcus furiosus DSM 3638]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5LCN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5LCN FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=1PE:PENTAETHYLENE+GLYCOL'>1PE</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]] 2.6Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4g59|4g59]]</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1PE:PENTAETHYLENE+GLYCOL'>1PE</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PF2001 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=186497 PYRFU])</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=5lcn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5lcn OCA], [https://pdbe.org/5lcn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5lcn RCSB], [https://www.ebi.ac.uk/pdbsum/5lcn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5lcn ProSAT]</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=5lcn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5lcn OCA], [http://pdbe.org/5lcn PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5lcn RCSB], [http://www.ebi.ac.uk/pdbsum/5lcn PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5lcn ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/Q8TZJ1_PYRFU Q8TZJ1_PYRFU] |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Pyrfu]] | + | [[Category: Pyrococcus furiosus DSM 3638]] |
| - | [[Category: Reverter, D]] | + | [[Category: Reverter D]] |
| - | [[Category: Varejao, N]] | + | [[Category: Varejao N]] |
| - | [[Category: Esterase]]
| + | |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Themophilic]]
| + | |
| Structural highlights
Function
Q8TZJ1_PYRFU
Publication Abstract from PubMed
Lipases and esterases constitute a group of enzymes that catalyze the hydrolysis or synthesis of ester bonds. A major biotechnological interest corresponds to thermophilic esterases, due to their intrinsic stability at high temperatures. The Pf2001 esterase from Pyrococcus furiosus reaches its optimal activity between 70 degrees C and 80 degrees C. The crystal structure of the Pf2001 esterase shows two different conformations: monomer and dimer. The structures reveal important rearrangements in the "cap" subdomain between monomer and dimer, by the formation of an extensive intertwined helical interface. Moreover, the dimer interface is essential for the formation of the hydrophobic channel for substrate selectivity, as confirmed by mutagenesis and kinetic analysis. We also provide evidence for dimer formation at high temperatures, a process that correlates with its enzymatic activation. Thus, we propose a temperature-dependent activation mechanism of the Pf2001 esterase via dimerization that is necessary for the substrate channel formation in the active-site cleft.
Structural Mechanism for the Temperature-Dependent Activation of the Hyperthermophilic Pf2001 Esterase.,Varejao N, De-Andrade RA, Almeida RV, Anobom CD, Foguel D, Reverter D Structure. 2017 Dec 28. pii: S0969-2126(17)30403-3. doi:, 10.1016/j.str.2017.12.004. PMID:29307486[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Varejao N, De-Andrade RA, Almeida RV, Anobom CD, Foguel D, Reverter D. Structural Mechanism for the Temperature-Dependent Activation of the Hyperthermophilic Pf2001 Esterase. Structure. 2017 Dec 28. pii: S0969-2126(17)30403-3. doi:, 10.1016/j.str.2017.12.004. PMID:29307486 doi:http://dx.doi.org/10.1016/j.str.2017.12.004
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