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2qqw

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Revision as of 07:33, 25 October 2017

Crystal structure of a cell-wall invertase (D23A) from Arabidopsis thaliana in complex with sucrose

Structural highlights

2qqw is a 1 chain structure with sequence from Arath. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
Related:	2ac1, 2oxb, 2qqv
Gene:	ATBFRUCT1 (ARATH)
Activity:	Beta-fructofuranosidase, with EC number 3.2.1.26
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[INV1_ARATH] Beta-fructofuranosidase that can use sucrose and 1-kestose, and, to a lower extent, neokestose and levan, as substrates, but not inuline.^[1] ^[2]

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

In plants, cell-wall invertases fulfil important roles in carbohydrate partitioning, growth, development and crop yield. In this study, we report on different X-ray crystal structures of Arabidopsis thaliana cell-wall invertase 1 (AtcwINV1) mutants with sucrose. These structures reveal a detailed view of sucrose binding in the active site of the wild-type AtcwINV1. Compared to related enzyme-sucrose complexes, important differences in the orientation of the glucose subunit could be observed. The structure of the E203Q AtcwINV1 mutant showed a complete new binding modus, whereas the D23A, E203A and D239A structures most likely represent the productive binding modus. Together with a hydrophobic zone formed by the conserved W20, W47 and W82, the residues N22, D23, R148, E203, D149 and D239 are necessary to create the ideal sucrose-binding pocket. D239 can interact directly with the glucose moiety of sucrose, whereas K242 has an indirect role in substrate stabilization. Most probably, K242 keeps D239 in a favourable position upon substrate binding. Unravelling the exact position of sucrose in plant cell-wall invertases is a necessary step towards the rational design of superior invertases to further increase crop yield and biomass production.

Crystal structures of Arabidopsis thaliana cell-wall invertase mutants in complex with sucrose.,Lammens W, Le Roy K, Van Laere A, Rabijns A, Van den Ende W J Mol Biol. 2008 Mar 21;377(2):378-85. Epub 2008 Jan 5. PMID:18258263^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Matrai J, Lammens W, Jonckheer A, Le Roy K, Rabijns A, Van den Ende W, De Maeyer M. An alternate sucrose binding mode in the E203Q Arabidopsis invertase mutant: An X-ray crystallography and docking study. Proteins. 2007 Oct 26;. PMID:17963237 doi:10.1002/prot.21700
↑ Le Roy K, Lammens W, Verhaest M, De Coninck B, Rabijns A, Van Laere A, Van den Ende W. Unraveling the difference between invertases and fructan exohydrolases: a single amino acid (Asp-239) substitution transforms Arabidopsis cell wall invertase1 into a fructan 1-exohydrolase. Plant Physiol. 2007 Nov;145(3):616-25. Epub 2007 Sep 14. PMID:17873089 doi:pp.107.105049
↑ Lammens W, Le Roy K, Van Laere A, Rabijns A, Van den Ende W. Crystal structures of Arabidopsis thaliana cell-wall invertase mutants in complex with sucrose. J Mol Biol. 2008 Mar 21;377(2):378-85. Epub 2008 Jan 5. PMID:18258263 doi:10.1016/j.jmb.2007.12.074

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/2qqw"

@@ Line 1: / Line 1: @@
 ==Crystal structure of a cell-wall invertase (D23A) from Arabidopsis thaliana in complex with sucrose==
 <StructureSection load='2qqw' size='340' side='right' caption='[[2qqw]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[2qqw]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Arath Arath]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QQW OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2QQW FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SUC:SUCROSE'>SUC</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SUC:SUCROSE'>SUC</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2ac1|2ac1]], [[2oxb|2oxb]], [[2qqv|2qqv]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ATBFRUCT1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 ARATH])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Beta-fructofuranosidase Beta-fructofuranosidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.26 3.2.1.26] </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=2qqw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qqw OCA], [http://pdbe.org/2qqw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2qqw RCSB], [http://www.ebi.ac.uk/pdbsum/2qqw 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=2qqw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qqw OCA], [http://pdbe.org/2qqw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2qqw RCSB], [http://www.ebi.ac.uk/pdbsum/2qqw PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2qqw ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 30: / Line 31: @@
 </div>
 <div class="pdbe-citations 2qqw" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Invertase|Invertase]]
 == References ==
 <references/>

2qqw

From Proteopedia

Revision as of 07:33, 25 October 2017

Crystal structure of a cell-wall invertase (D23A) from Arabidopsis thaliana in complex with sucrose

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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