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| | <StructureSection load='1kzf' size='340' side='right'caption='[[1kzf]], [[Resolution|resolution]] 1.80Å' scene=''> | | <StructureSection load='1kzf' size='340' side='right'caption='[[1kzf]], [[Resolution|resolution]] 1.80Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1kzf]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"aplanobacter_stawarti"_(smith_1898)_mcculloch_1918 "aplanobacter stawarti" (smith 1898) mcculloch 1918]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KZF OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1KZF FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1kzf]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pantoea_stewartii_subsp._stewartii Pantoea stewartii subsp. stewartii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KZF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KZF FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1k4j|1k4j]]</div></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]] 1.8Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">EsaI/EsaR gene cluster ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=66271 "Aplanobacter stawarti" (Smith 1898) McCulloch 1918])</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=1kzf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kzf OCA], [https://pdbe.org/1kzf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kzf RCSB], [https://www.ebi.ac.uk/pdbsum/1kzf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kzf ProSAT]</span></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=1kzf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kzf OCA], [http://pdbe.org/1kzf PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1kzf RCSB], [http://www.ebi.ac.uk/pdbsum/1kzf PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1kzf ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/ESAI_PANSE ESAI_PANSE]] Required for the synthesis of OHHL (N-(3-oxohexanoyl)-L-homoserine lactone), an autoinducer molecule which binds to EsaR. OHHL is necessary for biosynthesis of EPS virulence factor (extracellular heteropolysaccharide) which plays a role in the development of Stewart's wilt on sweet corn. | + | [https://www.uniprot.org/uniprot/ESAI_PANSE ESAI_PANSE] Required for the synthesis of OHHL (N-(3-oxohexanoyl)-L-homoserine lactone), an autoinducer molecule which binds to EsaR. OHHL is necessary for biosynthesis of EPS virulence factor (extracellular heteropolysaccharide) which plays a role in the development of Stewart's wilt on sweet corn. |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Bodman, S Beck von]] | + | [[Category: Pantoea stewartii subsp. stewartii]] |
| - | [[Category: Churchill, M E.A]]
| + | [[Category: Beck von Bodman S]] |
| - | [[Category: Minogue, T D]] | + | [[Category: Churchill MEA]] |
| - | [[Category: Val, D L]] | + | [[Category: Minogue TD]] |
| - | [[Category: Watson, W T]] | + | [[Category: Val DL]] |
| - | [[Category: Acylhomoserine lactone]] | + | [[Category: Watson WT]] |
| - | [[Category: Alpha-beta]] | + | |
| - | [[Category: Autoinducer synthase]]
| + | |
| - | [[Category: Bacterial pathogenesis]]
| + | |
| - | [[Category: Ligase]]
| + | |
| - | [[Category: Quorum sensing]]
| + | |
| Structural highlights
Function
ESAI_PANSE Required for the synthesis of OHHL (N-(3-oxohexanoyl)-L-homoserine lactone), an autoinducer molecule which binds to EsaR. OHHL is necessary for biosynthesis of EPS virulence factor (extracellular heteropolysaccharide) which plays a role in the development of Stewart's wilt on sweet corn.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Synthesis and detection of acyl-homoserine lactones (AHLs) enables many gram-negative bacteria to engage in quorum sensing, an intercellular signaling mechanism that activates differentiation to virulent and biofilm lifestyles. The AHL synthases catalyze acylation of S-adenosyl-L-methionine by acyl-acyl carrier protein and lactonization of the methionine moiety to give AHLs. The crystal structure of the AHL synthase, EsaI, determined at 1.8 A resolution, reveals a remarkable structural similarity to the N-acetyltransferases and defines a common phosphopantetheine binding fold as the catalytic core. Critical residues responsible for catalysis and acyl chain specificity have been identified from a modeled substrate complex and verified through functional analysis in vivo. A mechanism for the N-acylation of S-adenosyl-L-methionine by 3-oxo-hexanoyl-acyl carrier protein is proposed.
Structural basis and specificity of acyl-homoserine lactone signal production in bacterial quorum sensing.,Watson WT, Minogue TD, Val DL, von Bodman SB, Churchill ME Mol Cell. 2002 Mar;9(3):685-94. PMID:11931774[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Watson WT, Minogue TD, Val DL, von Bodman SB, Churchill ME. Structural basis and specificity of acyl-homoserine lactone signal production in bacterial quorum sensing. Mol Cell. 2002 Mar;9(3):685-94. PMID:11931774
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