2qes: Difference between revisions
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==Crystal structure of the ribosome inactivating protein PDL4 from P. dioica leaves in complex with adenine== | ==Crystal structure of the ribosome inactivating protein PDL4 from P. dioica leaves in complex with adenine== | ||
<StructureSection load='2qes' size='340' side='right' caption='[[2qes]], [[Resolution|resolution]] 1.24Å' scene=''> | <StructureSection load='2qes' size='340' side='right' caption='[[2qes]], [[Resolution|resolution]] 1.24Å' scene=''> | ||
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2z4u|2z4u]], [[2z53|2z53]], [[2qet|2qet]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2z4u|2z4u]], [[2z53|2z53]], [[2qet|2qet]]</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/rRNA_N-glycosylase rRNA N-glycosylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.2.22 3.2.2.22] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/rRNA_N-glycosylase rRNA N-glycosylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.2.22 3.2.2.22] </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=2qes FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qes OCA], [http://pdbe.org/2qes PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2qes RCSB], [http://www.ebi.ac.uk/pdbsum/2qes 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=2qes FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qes OCA], [http://pdbe.org/2qes PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2qes RCSB], [http://www.ebi.ac.uk/pdbsum/2qes PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2qes ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/qe/2qes_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/qe/2qes_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
Revision as of 11:57, 29 August 2018
Crystal structure of the ribosome inactivating protein PDL4 from P. dioica leaves in complex with adenineCrystal structure of the ribosome inactivating protein PDL4 from P. dioica leaves in complex with adenine
Structural highlights
Function[RIPL2_PHYDI] Inhibits protein synthesis. Does not cleave supercoiled pBR322 dsDNA.[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 PubMedThe 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[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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