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| | <StructureSection load='5g5m' size='340' side='right'caption='[[5g5m]], [[Resolution|resolution]] 2.07Å' scene=''> | | <StructureSection load='5g5m' size='340' side='right'caption='[[5g5m]], [[Resolution|resolution]] 2.07Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5g5m]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_43587 Atcc 43587]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5G5M OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5G5M FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5g5m]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5G5M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5G5M FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=QRL:S-methyl+hexanethioate'>QRL</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]] 2.07Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5g59|5g59]], [[5g5c|5g5c]]</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=QRL:S-methyl+hexanethioate'>QRL</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5g5m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5g5m OCA], [http://pdbe.org/5g5m PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5g5m RCSB], [http://www.ebi.ac.uk/pdbsum/5g5m PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5g5m ProSAT]</span></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=5g5m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5g5m OCA], [https://pdbe.org/5g5m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5g5m RCSB], [https://www.ebi.ac.uk/pdbsum/5g5m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5g5m 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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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Atcc 43587]] | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Reverter, D]] | + | [[Category: Pyrococcus furiosus]] |
| - | [[Category: Varejao, N]] | + | [[Category: Reverter D]] |
| - | [[Category: Esterase]] | + | [[Category: Varejao N]] |
| - | [[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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