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==Crystal Structure of Hydroxycinnamoyl-CoA Hydratase-Lyase== | |||
<StructureSection load='2j5i' size='340' side='right'caption='[[2j5i]], [[Resolution|resolution]] 1.80Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2j5i]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_fluorescens Pseudomonas fluorescens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J5I OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2J5I 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]] 1.8Å</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=2j5i FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j5i OCA], [https://pdbe.org/2j5i PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2j5i RCSB], [https://www.ebi.ac.uk/pdbsum/2j5i PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2j5i ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/HCHL_PSEFL HCHL_PSEFL] Catalyzes the hydration of the acyl-CoA thioester of ferulic acid and the subsequent retro-aldol cleavage of the hydrated intermediate to yield vanillin (4-hydroxy-3-methoxy-benzaldehyde).<ref>PMID:9461612</ref> | |||
== 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/j5/2j5i_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=2j5i ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The crystal structure of hydroxycinnamoyl-CoA hydratase-lyase (HCHL) from Pseudomonas fluorescens AN103 has been solved to 1.8 A resolution. HCHL is a member of the crotonase superfamily and catalyses the hydration of the acyl-CoA thioester of ferulic acid [3-(4-hydroxy-3-methoxy-phenyl)prop-2-enoic acid] and the subsequent retro-aldol cleavage of the hydrated intermediate to yield vanillin (4-hydroxy-3-methoxy-benzaldehyde). The structure contains 12 molecules in the asymmetric unit, in which HCHL assumes a hexameric structure of two stacked trimers. The substrate, feruloyl-CoA, was modelled into the active site based on the structure of enoyl-CoA hydratase bound to the feruloyl-CoA-like substrate 4-(N,N-dimethylamino)-cinnamoyl-CoA (PDB code 1ey3). Feruloyl-CoA was bound in this model between helix 3 of the A subunit and helix 9 of the B subunit. A highly ordered structural water in the HCHL structure coincided with the thioester carbonyl of feruloyl-CoA in the model, suggesting that the oxyanion hole for stabilization of a thioester-derived enolate, characteristic of coenzyme-A dependent members of the crotonase superfamily, is conserved. The model also suggested that a strong hydrogen bond between the phenolic hydroxyl groups of feruloyl-CoA and BTyr239 may be an important determinant of the enzyme's ability to discriminate between the natural substrate and cinnamoyl-CoA, which is not a substrate. | |||
The 1.8 A resolution structure of hydroxycinnamoyl-coenzyme A hydratase-lyase (HCHL) from Pseudomonas fluorescens, an enzyme that catalyses the transformation of feruloyl-coenzyme A to vanillin.,Leonard PM, Brzozowski AM, Lebedev A, Marshall CM, Smith DJ, Verma CS, Walton NJ, Grogan G Acta Crystallogr D Biol Crystallogr. 2006 Dec;62(Pt 12):1494-501. Epub, 2006 Nov 23. PMID:17139085<ref>PMID:17139085</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2j5i" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
== | __TOC__ | ||
< | </StructureSection> | ||
[[Category: Large Structures]] | |||
[[Category: Pseudomonas fluorescens]] | [[Category: Pseudomonas fluorescens]] | ||
[[Category: Brzozowski AM]] | |||
[[Category: Brzozowski | [[Category: Grogan G]] | ||
[[Category: Grogan | [[Category: Lebedev A]] | ||
[[Category: Lebedev | [[Category: Leonard PM]] | ||
[[Category: Leonard | [[Category: Marshall CM]] | ||
[[Category: Marshall | [[Category: Smith DJ]] | ||
[[Category: Smith | [[Category: Verma CS]] | ||
[[Category: Verma | [[Category: Walton NJ]] | ||
[[Category: Walton | |||