2qet
From Proteopedia
(Difference between revisions)
(New page: 200px<br /><applet load="2qet" size="350" color="white" frame="true" align="right" spinBox="true" caption="2qet, resolution 1.24Å" /> '''Structure of the mut...) |
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| - | [[Image:2qet.jpg|left|200px]]<br /><applet load="2qet" size="350" color="white" frame="true" align="right" spinBox="true" | ||
| - | caption="2qet, resolution 1.24Å" /> | ||
| - | '''Structure of the mutant S211A of the ribosome inactivating protein PDL4 from P. dioica in complex with adenine'''<br /> | ||
| - | == | + | ==Structure of the mutant S211A of the ribosome inactivating protein PDL4 from P. dioica in complex with adenine== |
| + | <StructureSection load='2qet' size='340' side='right'caption='[[2qet]], [[Resolution|resolution]] 1.24Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[2qet]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Phytolacca_dioica Phytolacca dioica]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QET OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QET 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]] 1.24Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADE:ADENINE'>ADE</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=2qet FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qet OCA], [https://pdbe.org/2qet PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qet RCSB], [https://www.ebi.ac.uk/pdbsum/2qet PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qet ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/RIPL2_PHYDI RIPL2_PHYDI] Inhibits protein synthesis. Does not cleave supercoiled pBR322 dsDNA.<ref>PMID:10213004</ref> <ref>PMID:15899692</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/qe/2qet_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=2qet ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
The ribosome inactivating protein PD-L4 from Phytolacca dioica is a N-beta-glycosidase, probably involved in plant defence. The crystal structures of wild type PD-L4 and of the S211A PD-L4 mutant with significantly decreased catalytic activity were determined at atomic resolution. To determine the structural determinants for the reduced activity of S211A PD-L4, both forms have also been co-crystallized with adenine, the major product of PD-L4 catalytic reaction. In the structure of the S211A mutant, the cavity formed by the lack of the Ser hydroxyl group is filled by a water molecule; the insertion of this non-isosteric group leads to small albeit concerted changes in the tightly packed active site of the enzyme. These changes have been correlated to the different activity of the mutant enzyme. This work highlights the importance of atomic resolution studies for the deep understanding of enzymatic properties. Proteins 2008. (c) 2007 Wiley-Liss, Inc. | The ribosome inactivating protein PD-L4 from Phytolacca dioica is a N-beta-glycosidase, probably involved in plant defence. The crystal structures of wild type PD-L4 and of the S211A PD-L4 mutant with significantly decreased catalytic activity were determined at atomic resolution. To determine the structural determinants for the reduced activity of S211A PD-L4, both forms have also been co-crystallized with adenine, the major product of PD-L4 catalytic reaction. In the structure of the S211A mutant, the cavity formed by the lack of the Ser hydroxyl group is filled by a water molecule; the insertion of this non-isosteric group leads to small albeit concerted changes in the tightly packed active site of the enzyme. These changes have been correlated to the different activity of the mutant enzyme. This work highlights the importance of atomic resolution studies for the deep understanding of enzymatic properties. Proteins 2008. (c) 2007 Wiley-Liss, Inc. | ||
| - | + | Atomic resolution (1.1 A) structure of the ribosome-inactivating protein PD-L4 from Phytolacca dioica L. leaves.,Ruggiero A, Chambery A, Maro AD, Parente A, Berisio R Proteins. 2007 Oct 26;71(1):8-15. PMID:17963235<ref>PMID:17963235</ref> | |
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| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 2qet" style="background-color:#fffaf0;"></div> | |
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| - | + | ==See Also== | |
| + | *[[Ribosome inactivating protein 3D structures|Ribosome inactivating protein 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Phytolacca dioica]] | ||
| + | [[Category: Berisio R]] | ||
| + | [[Category: Ruggiero A]] | ||
Current revision
Structure of the mutant S211A of the ribosome inactivating protein PDL4 from P. dioica in complex with adenine
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