2atm: Difference between revisions
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New page: left|200px<br /><applet load="2atm" size="450" color="white" frame="true" align="right" spinBox="true" caption="2atm, resolution 2.000Å" /> '''Crystal structure o... |
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== | ==Crystal structure of the recombinant allergen Ves v 2== | ||
Wasp venom from Vespula vulgaris contains three major allergens: Ves v 1, Ves v 2 and Ves v 5. Here, the cloning, expression, biochemical | <StructureSection load='2atm' size='340' side='right'caption='[[2atm]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2atm]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Vespula_vulgaris Vespula vulgaris]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ATM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ATM 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]] 2Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=SME:METHIONINE+SULFOXIDE'>SME</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=2atm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2atm OCA], [https://pdbe.org/2atm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2atm RCSB], [https://www.ebi.ac.uk/pdbsum/2atm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2atm ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/HUGAA_VESVU HUGAA_VESVU] Hydrolyzes high molecular weight hyaluronic acid to produce small oligosaccharides. | |||
== 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/at/2atm_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=2atm ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Wasp venom from Vespula vulgaris contains three major allergens: Ves v 1, Ves v 2 and Ves v 5. Here, the cloning, expression, biochemical characterization and crystal structure determination of the hyaluronidase Ves v 2 from family 56 of the glycoside hydrolases are reported. The allergen was expressed in Escherichia coli as an insoluble protein and refolded and purified to obtain full enzymatic activity. Three N-glycosylation sites at Asn79, Asn99 and Asn127 were identified in Ves v 2 from a natural source by enzymatic digestions combined with MALDI-TOF mass spectrometry. The crystal structure of recombinant Ves v 2 was determined at 2.0 A resolution and reveals a central (beta/alpha)(7) core that is further stabilized by two disulfide bonds (Cys19-Cys308 and Cys185-Cys197). Based on sequence alignments and structural comparison with the honeybee allergen Api m 2, it is proposed that a conserved cavity near the active site is involved in binding of the substrate. Surface epitopes and putative glycosylation sites have been compared with those of two other major group 2 allergens from Apis mellifera (honeybee) and Dolichovespula maculata (white-faced hornet). The analysis suggests that the harboured allergic IgE-mediated cross-reactivity between Ves v 2 and the allergen from D. maculata is much higher than that between Ves v 2 and the allergen from A. mellifera. | |||
Structure of recombinant Ves v 2 at 2.0 Angstrom resolution: structural analysis of an allergenic hyaluronidase from wasp venom.,Skov LK, Seppala U, Coen JJ, Crickmore N, King TP, Monsalve R, Kastrup JS, Spangfort MD, Gajhede M Acta Crystallogr D Biol Crystallogr. 2006 Jun;62(Pt 6):595-604. Epub 2006, May 12. PMID:16699186<ref>PMID:16699186</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
[[ | <div class="pdbe-citations 2atm" style="background-color:#fffaf0;"></div> | ||
[[Category: | |||
==See Also== | |||
*[[Hyaluronidase 3D structures|Hyaluronidase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Vespula vulgaris]] | [[Category: Vespula vulgaris]] | ||
[[Category: Coen | [[Category: Coen JJF]] | ||
[[Category: Crickmore | [[Category: Crickmore N]] | ||
[[Category: Gajhede | [[Category: Gajhede M]] | ||
[[Category: Kastrup | [[Category: Kastrup JS]] | ||
[[Category: King | [[Category: King TP]] | ||
[[Category: Monsalve | [[Category: Monsalve R]] | ||
[[Category: Seppala | [[Category: Seppala U]] | ||
[[Category: Skov | [[Category: Skov LK]] | ||
[[Category: Spangfort | [[Category: Spangfort MD]] | ||
Latest revision as of 08:18, 25 October 2023
Crystal structure of the recombinant allergen Ves v 2
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