4hv7

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==Structure of ricin A chain bound with N-(N-(pterin-7-yl)carbonylglycyl)glycine==
==Structure of ricin A chain bound with N-(N-(pterin-7-yl)carbonylglycyl)glycine==
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<StructureSection load='4hv7' size='340' side='right' caption='[[4hv7]], [[Resolution|resolution]] 1.87&Aring;' scene=''>
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<StructureSection load='4hv7' size='340' side='right'caption='[[4hv7]], [[Resolution|resolution]] 1.87&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4hv7]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HV7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4HV7 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4hv7]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Ricinus_communis Ricinus communis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HV7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4HV7 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=19J:2-[2-[(2-AZANYL-4-OXIDANYLIDENE-1H-PTERIDIN-7-YL)CARBONYLAMINO]ETHANOYLAMINO]ETHANOIC+ACID'>19J</scene>, <scene name='pdbligand=MLA:MALONIC+ACID'>MLA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.869&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1rtc|1rtc]], [[1ift|1ift]], [[1br6|1br6]], [[1px8|1px8]], [[1px9|1px9]], [[4esi|4esi]], [[4huo|4huo]], [[4hup|4hup]], [[4hv3|4hv3]]</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=19J:2-[2-[(2-AZANYL-4-OXIDANYLIDENE-1H-PTERIDIN-7-YL)CARBONYLAMINO]ETHANOYLAMINO]ETHANOIC+ACID'>19J</scene>, <scene name='pdbligand=MLA:MALONIC+ACID'>MLA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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<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>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4hv7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hv7 OCA], [https://pdbe.org/4hv7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4hv7 RCSB], [https://www.ebi.ac.uk/pdbsum/4hv7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4hv7 ProSAT]</span></td></tr>
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<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=4hv7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hv7 OCA], [http://pdbe.org/4hv7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4hv7 RCSB], [http://www.ebi.ac.uk/pdbsum/4hv7 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4hv7 ProSAT]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/RICI_RICCO RICI_RICCO]] Ricin is highly toxic to animal cells and to a lesser extent to plant cells. The A chain acts as a glycosidase that removes a specific adenine residue from an exposed loop of the 28S rRNA (A4324 in mammals), leading to rRNA breakage. As this loop is involved in elongation factor binding, modified ribosomes are catalytically inactive and unable to support protein synthesis. The A chain can inactivate a few thousand ribosomes per minute, faster than the cell can make new ones. Therefore a single A chain molecule can kill an animal cell. The B chain binds to beta-D-galactopyranoside moieties on cell surface glycoproteins and glycolipids and facilitates the entry into the cell of the A chain; B chains are also responsible for cell agglutination (Lectin activity).
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[https://www.uniprot.org/uniprot/RICI_RICCO RICI_RICCO] Ricin is highly toxic to animal cells and to a lesser extent to plant cells. The A chain acts as a glycosidase that removes a specific adenine residue from an exposed loop of the 28S rRNA (A4324 in mammals), leading to rRNA breakage. As this loop is involved in elongation factor binding, modified ribosomes are catalytically inactive and unable to support protein synthesis. The A chain can inactivate a few thousand ribosomes per minute, faster than the cell can make new ones. Therefore a single A chain molecule can kill an animal cell. The B chain binds to beta-D-galactopyranoside moieties on cell surface glycoproteins and glycolipids and facilitates the entry into the cell of the A chain; B chains are also responsible for cell agglutination (Lectin activity).
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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==See Also==
==See Also==
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*[[Ricin|Ricin]]
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*[[Ricin 3D structures|Ricin 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: RRNA N-glycosylase]]
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[[Category: Large Structures]]
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[[Category: Anslyn, E V]]
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[[Category: Ricinus communis]]
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[[Category: Jasheway, K R]]
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[[Category: Anslyn EV]]
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[[Category: Manzano, L A]]
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[[Category: Jasheway KR]]
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[[Category: Monzingo, A F]]
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[[Category: Manzano LA]]
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[[Category: Pruet, J M]]
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[[Category: Monzingo AF]]
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[[Category: Robertus, J D]]
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[[Category: Pruet JM]]
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[[Category: Saito, R]]
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[[Category: Robertus JD]]
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[[Category: Wiget, P A]]
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[[Category: Saito R]]
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[[Category: Hydrolase]]
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[[Category: Wiget PA]]
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[[Category: Hydrolase-hydrolase inhibitor complex]]
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[[Category: N-glycosidase]]
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[[Category: Protein-ligand complex]]
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[[Category: Pterin]]
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[[Category: Ribosome-inactivating protein]]
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[[Category: Ricin]]
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[[Category: Toxin]]
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Current revision

Structure of ricin A chain bound with N-(N-(pterin-7-yl)carbonylglycyl)glycine

PDB ID 4hv7

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