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== | ==Structure of C-terminal region of acidic P2 ribosomal protein complexed with trichosanthin== | ||
<StructureSection load='2jdl' size='340' side='right'caption='[[2jdl]], [[Resolution|resolution]] 2.20Å' scene=''> | |||
[[Category: | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2jdl]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Trichosanthes_kirilowii Trichosanthes kirilowii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JDL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2JDL 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]] 2.2Å</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=2jdl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2jdl OCA], [https://pdbe.org/2jdl PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2jdl RCSB], [https://www.ebi.ac.uk/pdbsum/2jdl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2jdl ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/RIPT_TRIKI RIPT_TRIKI] Inactivates eukaryotic 60S ribosomal subunits. | |||
== 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/jd/2jdl_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=2jdl ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Ribosome-inactivating proteins (RIPs) inhibit protein synthesis by enzymatically depurinating a specific adenine residue at the sarcin-ricin loop of the 28S rRNA, which thereby prevents the binding of elongation factors to the GTPase activation centre of the ribosome. Here, we present the 2.2 A crystal structure of trichosanthin (TCS) complexed to the peptide SDDDMGFGLFD, which corresponds to the conserved C-terminal elongation factor binding domain of the ribosomal P protein. The N-terminal region of this peptide interacts with Lys173, Arg174 and Lys177 in TCS, while the C-terminal region is inserted into a hydrophobic pocket. The interaction with the P protein contributes to the ribosome-inactivating activity of TCS. This 11-mer C-terminal P peptide can be docked with selected important plant and bacterial RIPs, indicating that a similar interaction may also occur with other RIPs. | |||
The C-terminal fragment of the ribosomal P protein complexed to trichosanthin reveals the interaction between the ribosome-inactivating protein and the ribosome.,Too PH, Ma MK, Mak AN, Wong YT, Tung CK, Zhu G, Au SW, Wong KB, Shaw PC Nucleic Acids Res. 2009 Feb;37(2):602-10. Epub 2008 Dec 10. PMID:19073700<ref>PMID:19073700</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2jdl" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Ribosomal protein P2|Ribosomal protein P2]] | |||
*[[Ribosome inactivating protein 3D structures|Ribosome inactivating protein 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | |||
[[Category: Large Structures]] | |||
[[Category: Trichosanthes kirilowii]] | [[Category: Trichosanthes kirilowii]] | ||
[[Category: Au SW]] | |||
[[Category: Au | [[Category: Mak AN]] | ||
[[Category: Mak | [[Category: Shaw PC]] | ||
[[Category: Shaw | [[Category: Too PH]] | ||
[[Category: Too | [[Category: Wong KB]] | ||
[[Category: Wong | [[Category: Zhu G]] | ||
[[Category: Zhu | |||
Latest revision as of 17:44, 13 December 2023
Structure of C-terminal region of acidic P2 ribosomal protein complexed with trichosanthinStructure of C-terminal region of acidic P2 ribosomal protein complexed with trichosanthin
Structural highlights
FunctionRIPT_TRIKI Inactivates eukaryotic 60S ribosomal subunits. 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 PubMedRibosome-inactivating proteins (RIPs) inhibit protein synthesis by enzymatically depurinating a specific adenine residue at the sarcin-ricin loop of the 28S rRNA, which thereby prevents the binding of elongation factors to the GTPase activation centre of the ribosome. Here, we present the 2.2 A crystal structure of trichosanthin (TCS) complexed to the peptide SDDDMGFGLFD, which corresponds to the conserved C-terminal elongation factor binding domain of the ribosomal P protein. The N-terminal region of this peptide interacts with Lys173, Arg174 and Lys177 in TCS, while the C-terminal region is inserted into a hydrophobic pocket. The interaction with the P protein contributes to the ribosome-inactivating activity of TCS. This 11-mer C-terminal P peptide can be docked with selected important plant and bacterial RIPs, indicating that a similar interaction may also occur with other RIPs. The C-terminal fragment of the ribosomal P protein complexed to trichosanthin reveals the interaction between the ribosome-inactivating protein and the ribosome.,Too PH, Ma MK, Mak AN, Wong YT, Tung CK, Zhu G, Au SW, Wong KB, Shaw PC Nucleic Acids Res. 2009 Feb;37(2):602-10. Epub 2008 Dec 10. PMID:19073700[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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