This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1kzf

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 21:25, 24 January 2018

Crystal Structure of the Acyl-homoserine Lactone Synthase, EsaI

Structural highlights

1kzf is a 1 chain structure with sequence from "aplanobacter_stawarti"_(smith_1898)_mcculloch_1918 "aplanobacter stawarti" (smith 1898) mcculloch 1918. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1k4j
Gene:	EsaI/EsaR gene cluster ("Aplanobacter stawarti" (Smith 1898) McCulloch 1918)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1kzf"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of the Acyl-homoserine Lactone Synthase, EsaI==
 <StructureSection load='1kzf' size='340' side='right' caption='[[1kzf]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1k4j|1k4j]]</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'>[http://oca.weizmann.ac.il/oca-docs/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]</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=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>
 == Function ==
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kz/1kzf_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kz/1kzf_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

1kzf

From Proteopedia

Revision as of 21:25, 24 January 2018

Crystal Structure of the Acyl-homoserine Lactone Synthase, EsaI

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox