2g5x: Difference between revisions
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==Crystal structure of lychnin a type 1 Ribosome Inactivating Protein (RIP)== | ==Crystal structure of lychnin a type 1 Ribosome Inactivating Protein (RIP)== | ||
<StructureSection load='2g5x' size='340' side='right' caption='[[2g5x]], [[Resolution|resolution]] 1.70Å' scene=''> | <StructureSection load='2g5x' size='340' side='right'caption='[[2g5x]], [[Resolution|resolution]] 1.70Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2g5x]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2g5x]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Silene_chalcedonica Silene chalcedonica]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2G5X OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2G5X FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7Å</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=2g5x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2g5x OCA], [https://pdbe.org/2g5x PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2g5x RCSB], [https://www.ebi.ac.uk/pdbsum/2g5x PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2g5x ProSAT]</span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
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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/g5/2g5x_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/g5/2g5x_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/ | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </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/ | </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=2g5x ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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Ribosome-inactivating proteins (RIPs) similar to those already known (Stirpe & Barbieri (1986) FEBS Lett. 195, 1-8) were purified from the seeds of Asparagus officinalis (two proteins, asparin 1 and 2), of Citrullus colocynthis (two proteins, colocin 1 and 2), of Lychnis chalcedonica (lychnin) and of Manihot palmata (mapalmin), from the roots of Phytolacca americana (pokeweed antiviral protein from roots, PAP-R) and from the leaves of Bryonia dioica (bryodin-L). The two latter proteins can be considered as isoforms, respectively, of previously purified PAP, from the leaves of P. americana, and of bryodin-R, from the roots of B. dioica. All proteins have an Mr at approx, 30,000, and an alkaline isoelectric point. Bryodin-L, colocins, lychnin and mapalmin are glycoproteins. All RIPs inhibit protein synthesis by a rabbit reticulocyte lysate and phenylalanine polymerization by isolated ribosomes and alter rRNA in a similar manner as the A-chain of ricin and related toxins (Endo et al. (1987) J. Biol. Chem. 262, 5908-5912). | Ribosome-inactivating proteins (RIPs) similar to those already known (Stirpe & Barbieri (1986) FEBS Lett. 195, 1-8) were purified from the seeds of Asparagus officinalis (two proteins, asparin 1 and 2), of Citrullus colocynthis (two proteins, colocin 1 and 2), of Lychnis chalcedonica (lychnin) and of Manihot palmata (mapalmin), from the roots of Phytolacca americana (pokeweed antiviral protein from roots, PAP-R) and from the leaves of Bryonia dioica (bryodin-L). The two latter proteins can be considered as isoforms, respectively, of previously purified PAP, from the leaves of P. americana, and of bryodin-R, from the roots of B. dioica. All proteins have an Mr at approx, 30,000, and an alkaline isoelectric point. Bryodin-L, colocins, lychnin and mapalmin are glycoproteins. All RIPs inhibit protein synthesis by a rabbit reticulocyte lysate and phenylalanine polymerization by isolated ribosomes and alter rRNA in a similar manner as the A-chain of ricin and related toxins (Endo et al. (1987) J. Biol. Chem. 262, 5908-5912). | ||
Purification and properties of new ribosome-inactivating proteins with RNA N-glycosidase activity.,Bolognesi A, Barbieri L, Abbondanza A, Falasca AI, Carnicelli D, Battelli MG, Stirpe F Biochim Biophys Acta. 1990 Nov 30;1087(3):293-302. PMID: | Purification and properties of new ribosome-inactivating proteins with RNA N-glycosidase activity.,Bolognesi A, Barbieri L, Abbondanza A, Falasca AI, Carnicelli D, Battelli MG, Stirpe F Biochim Biophys Acta. 1990 Nov 30;1087(3):293-302. PMID:002248976<ref>PMID:002248976</ref> | ||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
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==See Also== | ==See Also== | ||
*[[Ribosome inactivating protein|Ribosome inactivating protein]] | *[[Ribosome inactivating protein 3D structures|Ribosome inactivating protein 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | |||
[[Category: Silene chalcedonica]] | [[Category: Silene chalcedonica]] | ||
[[Category: Bolognesi A]] | |||
[[Category: Bolognesi | [[Category: Falini G]] | ||
[[Category: Falini | [[Category: Fermani S]] | ||
[[Category: Fermani | [[Category: Polito L]] | ||
[[Category: Polito | [[Category: Ripamonti A]] | ||
[[Category: Ripamonti | [[Category: Stirpe F]] | ||
[[Category: Stirpe | [[Category: Tosi G]] | ||
[[Category: Tosi | |||
