3g21

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{{Seed}}
 
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[[Image:3g21.jpg|left|200px]]
 
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==Crystal structure of the C-terminal domain of the Rous Sarcoma Virus capsid protein: Low pH==
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The line below this paragraph, containing "STRUCTURE_3g21", creates the "Structure Box" on the page.
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<StructureSection load='3g21' size='340' side='right'caption='[[3g21]], [[Resolution|resolution]] 0.90&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[3g21]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Rous_sarcoma_virus_-_Prague_C Rous sarcoma virus - Prague C]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3G21 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3G21 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 0.9&#8491;</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=NO3:NITRATE+ION'>NO3</scene></td></tr>
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{{STRUCTURE_3g21| PDB=3g21 | SCENE= }}
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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=3g21 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3g21 OCA], [https://pdbe.org/3g21 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3g21 RCSB], [https://www.ebi.ac.uk/pdbsum/3g21 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3g21 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/GAG_RSVP GAG_RSVP] Capsid protein p27 forms the spherical core of the virus that encapsulates the genomic RNA-nucleocapsid complex (By similarity). The aspartyl protease mediates proteolytic cleavages of Gag and Gag-Pol polyproteins during or shortly after the release of the virion from the plasma membrane. Cleavages take place as an ordered, step-wise cascade to yield mature proteins. This process is called maturation. Displays maximal activity during the budding process just prior to particle release from the cell (By similarity).
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/g2/3g21_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=3g21 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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In mature retroviral particles, the capsid protein (CA) forms a shell encasing the viral replication complex. Human immunodeficiency virus (HIV) CA dimerizes in solution, through its C-terminal domain (CTD), and this interaction is important for capsid assembly. In contrast, other retroviral capsid proteins, including that of Rous sarcoma virus (RSV), do not dimerize with measurable affinity. Here we show, using X-ray crystallography and other biophysical methods, that acidification causes RSV CA to dimerize in a fashion analogous to HIV CA, and that this drives capsid assembly in vitro. A pair of aspartic acid residues, located within the CTD dimer interface, explains why dimerization is linked to proton binding. Our results show that despite overarching structural similarities, the intermolecular forces responsible for forming and stabilizing the retroviral capsid differ markedly across retroviral genera. Our data further suggest that proton binding may regulate RSV capsid assembly, or modulate stability of the assembled capsid.
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===Crystal structure of the C-terminal domain of the Rous Sarcoma Virus capsid protein: Low pH===
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Proton-linked dimerization of a retroviral capsid protein initiates capsid assembly.,Bailey GD, Hyun JK, Mitra AK, Kingston RL Structure. 2009 May 13;17(5):737-48. PMID:19446529<ref>PMID:19446529</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 3g21" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_19446529}}, adds the Publication Abstract to the page
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*[[Gag polyprotein 3D structures|Gag polyprotein 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 19446529 is the PubMed ID number.
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*[[Virus coat proteins 3D structures|Virus coat proteins 3D structures]]
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== References ==
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{{ABSTRACT_PUBMED_19446529}}
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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3G21 is a 1 chain structure of sequence from [http://en.wikipedia.org/wiki/Rous_sarcoma_virus Rous sarcoma virus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3G21 OCA].
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[[Category: Large Structures]]
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[[Category: Rous sarcoma virus - Prague C]]
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==Reference==
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[[Category: Kingston RL]]
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<ref group="xtra">PMID:19446529</ref><references group="xtra"/>
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[[Category: Rous sarcoma virus]]
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[[Category: Kingston, R L.]]
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[[Category: Alpha-helical bundle]]
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[[Category: Capsid protein]]
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[[Category: Retrovirus]]
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[[Category: Viral protein]]
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[[Category: Virion]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Jun 4 07:27:34 2009''
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Current revision

Crystal structure of the C-terminal domain of the Rous Sarcoma Virus capsid protein: Low pH

PDB ID 3g21

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