2vce

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (15:14, 13 December 2023) (edit) (undo)
 
(16 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:2vce.gif|left|200px]]<br /><applet load="2vce" size="350" color="white" frame="true" align="right" spinBox="true"
 
-
caption="2vce, resolution 1.90&Aring;" />
 
-
'''CHARACTERIZATION AND ENGINEERING OF THE BIFUNCTIONAL N- AND O-GLUCOSYLTRANSFERASE INVOLVED IN XENOBIOTIC METABOLISM IN PLANTS'''<br />
 
-
==Overview==
+
==Characterization and engineering of the bifunctional N- and O- glucosyltransferase involved in xenobiotic metabolism in plants==
-
The glucosylation of pollutant and pesticide metabolites in plants, controls their bioactivity and the formation of subsequent chemical, residues. The model plant Arabidopsis thaliana contains &gt;100, glycosyltransferases (GTs) dedicated to small-molecule conjugation and, whereas 44 of these enzymes catalyze the O-glucosylation of chlorinated, phenols, only one, UGT72B1, shows appreciable N-glucosylating activity, toward chloroanilines. UGT72B1 is a bifunctional O-glucosyltransferase, (OGT) and N-glucosyltransferase (NGT). To investigate this unique dual, activity, the structure of the protein was solved, at resolutions up to, 1.45 A, in various forms including the Michaelis complex with intact donor, analog and trichlorophenol acceptor. The catalytic mechanism and basis for, O/N specificity was probed by mutagenesis and domain shuffling with an, orthologous enzyme from Brassica napus (BnUGT), which possesses only OGT, activity. Mutation of BnUGT at just two positions (D312N and F315Y), installed high levels of NGT activity. Molecular modeling revealed the, connectivity of these residues to H19 on UGT72B1, with its mutagenesis, exclusively defining NGT activity in the Arabidopsis enzyme. These results, shed light on the conjugation of nonnatural substrates by plant GTs, highlighting the catalytic plasticity of this enzyme class and the ability, to engineer unusual and desirable transfer to nitrogen-based acceptors.
+
<StructureSection load='2vce' size='340' side='right'caption='[[2vce]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[2vce]] 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=2VCE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VCE 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]] 1.9&#8491;</td></tr>
 +
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=TC7:2,4,5-TRICHLOROPHENOL'>TC7</scene>, <scene name='pdbligand=U2F:URIDINE-5-DIPHOSPHATE-2-DEOXY-2-FLUORO-ALPHA-D-GLUCOSE'>U2F</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=2vce FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vce OCA], [https://pdbe.org/2vce PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2vce RCSB], [https://www.ebi.ac.uk/pdbsum/2vce PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2vce ProSAT]</span></td></tr>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/U72B1_ARATH U72B1_ARATH] Bifunctional O-glycosyltransferase and N-glycosyltransferase that can detoxify xenobiotics. Possesses high activity to metabolize the peristent pollutants 2,4,5-trichlorophenol (TCP) and 3,4-dichloroaniline (DCA). Also active on benzoates and benzoate derivatives in vitro.<ref>PMID:11641410</ref> <ref>PMID:15860014</ref> <ref>PMID:18077347</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/vc/2vce_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=2vce ConSurf].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
The glucosylation of pollutant and pesticide metabolites in plants controls their bioactivity and the formation of subsequent chemical residues. The model plant Arabidopsis thaliana contains &gt;100 glycosyltransferases (GTs) dedicated to small-molecule conjugation and, whereas 44 of these enzymes catalyze the O-glucosylation of chlorinated phenols, only one, UGT72B1, shows appreciable N-glucosylating activity toward chloroanilines. UGT72B1 is a bifunctional O-glucosyltransferase (OGT) and N-glucosyltransferase (NGT). To investigate this unique dual activity, the structure of the protein was solved, at resolutions up to 1.45 A, in various forms including the Michaelis complex with intact donor analog and trichlorophenol acceptor. The catalytic mechanism and basis for O/N specificity was probed by mutagenesis and domain shuffling with an orthologous enzyme from Brassica napus (BnUGT), which possesses only OGT activity. Mutation of BnUGT at just two positions (D312N and F315Y) installed high levels of NGT activity. Molecular modeling revealed the connectivity of these residues to H19 on UGT72B1, with its mutagenesis exclusively defining NGT activity in the Arabidopsis enzyme. These results shed light on the conjugation of nonnatural substrates by plant GTs, highlighting the catalytic plasticity of this enzyme class and the ability to engineer unusual and desirable transfer to nitrogen-based acceptors.
-
==About this Structure==
+
Characterization and engineering of the bifunctional N- and O-glucosyltransferase involved in xenobiotic metabolism in plants.,Brazier-Hicks M, Offen WA, Gershater MC, Revett TJ, Lim EK, Bowles DJ, Davies GJ, Edwards R Proc Natl Acad Sci U S A. 2007 Dec 18;104(51):20238-43. Epub 2007 Dec 12. PMID:18077347<ref>PMID:18077347</ref>
-
2VCE is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana] with <scene name='pdbligand=U2F:'>U2F</scene>, <scene name='pdbligand=TC7:'>TC7</scene> and <scene name='pdbligand=EDO:'>EDO</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Hydroquinone_glucosyltransferase Hydroquinone glucosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.1.218 2.4.1.218] Known structural/functional Sites: <scene name='pdbsite=AC1:U2f+Binding+Site+For+Chain+A'>AC1</scene>, <scene name='pdbsite=AC2:Tc7+Binding+Site+For+Chain+A'>AC2</scene> and <scene name='pdbsite=AC3:Edo+Binding+Site+For+Chain+A'>AC3</scene>. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2VCE OCA].
+
-
==Reference==
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
Characterization and engineering of the bifunctional N- and O-glucosyltransferase involved in xenobiotic metabolism in plants., Brazier-Hicks M, Offen WA, Gershater MC, Revett TJ, Lim EK, Bowles DJ, Davies GJ, Edwards R, Proc Natl Acad Sci U S A. 2007 Dec 18;104(51):20238-43. Epub 2007 Dec 12. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=18077347 18077347]
+
</div>
-
[[Category: Arabidopsis thaliana]]
+
<div class="pdbe-citations 2vce" style="background-color:#fffaf0;"></div>
-
[[Category: Hydroquinone glucosyltransferase]]
+
-
[[Category: Single protein]]
+
-
[[Category: Bowles, D.J.]]
+
-
[[Category: Brazier-Hicks, M.]]
+
-
[[Category: Davies, G.J.]]
+
-
[[Category: Edwards, R.]]
+
-
[[Category: Gershater, M.C.]]
+
-
[[Category: Lim, E.K.]]
+
-
[[Category: Offen, W.A.]]
+
-
[[Category: Revett, T.J.]]
+
-
[[Category: EDO]]
+
-
[[Category: TC7]]
+
-
[[Category: U2F]]
+
-
[[Category: glycosyltransferase]]
+
-
[[Category: n-glucosyltransferase]]
+
-
[[Category: n-glycosylation]]
+
-
[[Category: o- glucosyltransferase]]
+
-
[[Category: o-glycosylation]]
+
-
[[Category: plant glycosylation]]
+
-
[[Category: s-glucosyltransferase]]
+
-
[[Category: transferase]]
+
-
[[Category: udp-glucose- dependent]]
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Feb 3 10:51:09 2008''
+
==See Also==
 +
*[[Glycosyltransferase 3D structures|Glycosyltransferase 3D structures]]
 +
== References ==
 +
<references/>
 +
__TOC__
 +
</StructureSection>
 +
[[Category: Arabidopsis thaliana]]
 +
[[Category: Large Structures]]
 +
[[Category: Bowles DJ]]
 +
[[Category: Brazier-Hicks M]]
 +
[[Category: Davies GJ]]
 +
[[Category: Edwards R]]
 +
[[Category: Gershater MC]]
 +
[[Category: Lim EK]]
 +
[[Category: Offen WA]]
 +
[[Category: Revett TJ]]

Current revision

Characterization and engineering of the bifunctional N- and O- glucosyltransferase involved in xenobiotic metabolism in plants

PDB ID 2vce

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2vce"
Personal tools