View source for 6avw


==Crystal structure of Arabidopsis thaliana SOBER1 L63A==
<StructureSection load='6avw' size='340' side='right'caption='[[6avw]], [[Resolution|resolution]] 2.14&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6avw]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6AVW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6AVW FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1444945&#8491;</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=6avw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6avw OCA], [https://pdbe.org/6avw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6avw RCSB], [https://www.ebi.ac.uk/pdbsum/6avw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6avw ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/SOBR1_ARATH SOBR1_ARATH] Possesses carboxylesterase activity in vitro with a preference for short acyl chain substrates. Functions as a negative regulator of the hypersensitive response (HR) triggered by the bacterial type III effector protein AvrBsT (PubMed:17293566). Possesses phospholipase A2 (PLA2) activity and hydrolyzes phosphatidylcholine (PC), a lipid that is hydrolyzed by phospholipase D (PLD) to produce phosphatidic acid (PA). Required to suppress AvrBsT-dependent HR and PLD-dependent production of PA in response to AvrBsT elicitation (PubMed:19918071).<ref>PMID:17293566</ref> <ref>PMID:19918071</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Several Pseudomonas and Xanthomonas species are plant pathogens that infect the model organism Arabidopsis thaliana and important crops such as Brassica. Resistant plants contain the infection by rapid cell death of the infected area through the hypersensitive response (HR). A family of highly related alpha/beta hydrolases is involved in diverse processes in all domains of life. Functional details of their catalytic machinery, however, remained unclear. We report the crystal structures of alpha/beta hydrolases representing two different clades of the family, including the protein SOBER1, which suppresses AvrBsT-incited HR in Arabidopsis. Our results reveal a unique hydrophobic anchor mechanism that defines a previously unknown family of protein deacetylases. Furthermore, this study identifies a lid-loop as general feature for substrate turnover in acyl-protein thioesterases and the described family of deacetylases. Furthermore, we found that SOBER1's biological function is not restricted to Arabidopsis thaliana and not limited to suppress HR induced by AvrBsT.

A hydrophobic anchor mechanism defines a deacetylase family that suppresses host response against YopJ effectors.,Burger M, Willige BC, Chory J Nat Commun. 2017 Dec 19;8(1):2201. doi: 10.1038/s41467-017-02347-w. PMID:29259199<ref>PMID:29259199</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6avw" style="background-color:#fffaf0;"></div>

==See Also==
*[[Carboxylesterase 3D structures|Carboxylesterase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Arabidopsis thaliana]]
[[Category: Large Structures]]
[[Category: Burger M]]
[[Category: Chory J]]
[[Category: Willige BC]]