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[[Image:1jji.gif|left|200px]]


{{Structure
==The Crystal Structure of a Hyper-thermophilic Carboxylesterase from the Archaeon Archaeoglobus fulgidus==
|PDB= 1jji |SIZE=350|CAPTION= <scene name='initialview01'>1jji</scene>, resolution 2.20&Aring;
<StructureSection load='1jji' size='340' side='right'caption='[[1jji]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=EPE:4-(2-HYDROXYETHYL)-1-PIPERAZINE+ETHANESULFONIC+ACID'>EPE</scene>
<table><tr><td colspan='2'>[[1jji]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Archaeoglobus_fulgidus Archaeoglobus fulgidus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JJI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JJI FirstGlance]. <br>
|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Carboxylesterase Carboxylesterase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.1.1 3.1.1.1] </span>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2&#8491;</td></tr>
|GENE=  
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EPE:4-(2-HYDROXYETHYL)-1-PIPERAZINE+ETHANESULFONIC+ACID'>EPE</scene></td></tr>
|DOMAIN=
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1jji FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jji OCA], [https://pdbe.org/1jji PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jji RCSB], [https://www.ebi.ac.uk/pdbsum/1jji PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jji ProSAT]</span></td></tr>
|RELATEDENTRY=
</table>
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1jji FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jji OCA], [http://www.ebi.ac.uk/pdbsum/1jji PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1jji RCSB]</span>
== Function ==
}}
[https://www.uniprot.org/uniprot/O28558_ARCFU O28558_ARCFU]
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/jj/1jji_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1jji ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The crystal structure of AFEST, a novel hyper-thermophilic carboxylesterase from the archaeon Archaeoglobus fulgidus, complexed with a sulphonyl derivative, has been determined and refined to 2.2 A resolution. This enzyme, which has recently been classified as a member of the hormone- sensitive-lipase (H) group of the esterase/lipase superfamily, presents a canonical alpha/beta hydrolase core, shielded on the C-terminal side by a cap region composed of five alpha-helices. It contains the catalytic triad Ser160, His285 and Asp255, whereby the nucleophile is covalently modified and the oxyanion hole formed by Gly88, Gly89 and Ala161. A structural comparison of AFEST with its mesophilic and thermophilic homologues, Brefeldin A esterase from Bacillus subtilis (BFAE) and EST2 from Alicyclobacillus acidocaldarius, reveals an increase in the number of intramolecular ion pairs and secondary structure content, as well as a significant reduction in loop extensions and ratio of hydrophobic to charged surface area. The variety of structural differences suggests possible strategies for thermostabilization of lipases and esterases with potential industrial applications.


'''The Crystal Structure of a Hyper-thermophilic Carboxylesterase from the Archaeon Archaeoglobus fulgidus'''
The crystal structure of a hyper-thermophilic carboxylesterase from the archaeon Archaeoglobus fulgidus.,De Simone G, Menchise V, Manco G, Mandrich L, Sorrentino N, Lang D, Rossi M, Pedone C J Mol Biol. 2001 Nov 30;314(3):507-18. PMID:11846563<ref>PMID:11846563</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1jji" style="background-color:#fffaf0;"></div>


==Overview==
==See Also==
The crystal structure of AFEST, a novel hyper-thermophilic carboxylesterase from the archaeon Archaeoglobus fulgidus, complexed with a sulphonyl derivative, has been determined and refined to 2.2 A resolution. This enzyme, which has recently been classified as a member of the hormone- sensitive-lipase (H) group of the esterase/lipase superfamily, presents a canonical alpha/beta hydrolase core, shielded on the C-terminal side by a cap region composed of five alpha-helices. It contains the catalytic triad Ser160, His285 and Asp255, whereby the nucleophile is covalently modified and the oxyanion hole formed by Gly88, Gly89 and Ala161. A structural comparison of AFEST with its mesophilic and thermophilic homologues, Brefeldin A esterase from Bacillus subtilis (BFAE) and EST2 from Alicyclobacillus acidocaldarius, reveals an increase in the number of intramolecular ion pairs and secondary structure content, as well as a significant reduction in loop extensions and ratio of hydrophobic to charged surface area. The variety of structural differences suggests possible strategies for thermostabilization of lipases and esterases with potential industrial applications.
*[[Carboxylesterase 3D structures|Carboxylesterase 3D structures]]
 
== References ==
==About this Structure==
<references/>
1JJI is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Archaeoglobus_fulgidus Archaeoglobus fulgidus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JJI OCA].
__TOC__
 
</StructureSection>
==Reference==
The crystal structure of a hyper-thermophilic carboxylesterase from the archaeon Archaeoglobus fulgidus., De Simone G, Menchise V, Manco G, Mandrich L, Sorrentino N, Lang D, Rossi M, Pedone C, J Mol Biol. 2001 Nov 30;314(3):507-18. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11846563 11846563]
[[Category: Archaeoglobus fulgidus]]
[[Category: Archaeoglobus fulgidus]]
[[Category: Carboxylesterase]]
[[Category: Large Structures]]
[[Category: Single protein]]
[[Category: De Simone G]]
[[Category: Lang, D.]]
[[Category: Lang D]]
[[Category: Manco, G.]]
[[Category: Manco G]]
[[Category: Mandrich, L.]]
[[Category: Mandrich L]]
[[Category: Menchise, V.]]
[[Category: Menchise V]]
[[Category: Pedone, C.]]
[[Category: Pedone C]]
[[Category: Rossi, M.]]
[[Category: Rossi M]]
[[Category: Simone, G De.]]
[[Category: Sorrentino N]]
[[Category: Sorrentino, N.]]
[[Category: alpha-beta hydrolase fold]]
 
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