3gpm

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{{Seed}}
 
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[[Image:3gpm.png|left|200px]]
 
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==Structure of the trimeric form of the E113G PCNA mutant protein==
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The line below this paragraph, containing "STRUCTURE_3gpm", creates the "Structure Box" on the page.
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<StructureSection load='3gpm' size='340' side='right'caption='[[3gpm]], [[Resolution|resolution]] 3.80&Aring;' scene=''>
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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'>[[3gpm]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3GPM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3GPM FirstGlance]. <br>
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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]] 3.8&#8491;</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=3gpm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3gpm OCA], [https://pdbe.org/3gpm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3gpm RCSB], [https://www.ebi.ac.uk/pdbsum/3gpm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3gpm ProSAT]</span></td></tr>
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{{STRUCTURE_3gpm| PDB=3gpm | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PCNA_YEAST PCNA_YEAST] This protein is an auxiliary protein of DNA polymerase delta and is involved in the control of eukaryotic DNA replication by increasing the polymerase's processibility during elongation of the leading strand. Involved in DNA repair.<ref>PMID:11545742</ref> <ref>PMID:12226657</ref>
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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/gp/3gpm_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=3gpm 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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Eukaryotic proliferating cell nuclear antigen (PCNA) is an essential replication accessory factor that interacts with a variety of proteins involved in DNA replication and repair. Each monomer of PCNA has an N-terminal domain A and a C-terminal domain B. In the structure of the wild-type PCNA protein, domain A of one monomer interacts with domain B of a neighboring monomer to form a ring-shaped trimer. Glu113 is a conserved residue at the subunit interface in domain A. Two distinct X-ray crystal structures have been determined of a mutant form of PCNA with a substitution at this position (E113G) that has previously been studied because of its effect on translesion synthesis. The first structure was the expected ring-shaped trimer. The second structure was an unanticipated nontrimeric form of the protein. In this nontrimeric form, domain A of one PCNA monomer interacts with domain A of a neighboring monomer, while domain B of this monomer interacts with domain B of a different neighboring monomer. The B-B interface is stabilized by an antiparallel beta-sheet and appears to be structurally similar to the A-B interface observed in the trimeric form of PCNA. The A-A interface, in contrast, is primarily stabilized by hydrophobic interactions. Because the E113G substitution is located on this hydrophobic surface, the A-A interface should be less favorable in the case of the wild-type protein. This suggests that the side chain of Glu113 promotes trimer formation by destabilizing these possible alternate subunit interactions.
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===Structure of the trimeric form of the E113G PCNA mutant protein===
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A charged residue at the subunit interface of PCNA promotes trimer formation by destabilizing alternate subunit interactions.,Freudenthal BD, Gakhar L, Ramaswamy S, Washington MT Acta Crystallogr D Biol Crystallogr. 2009 Jun;65(Pt 6):560-6. Epub 2009, May 15. PMID:19465770<ref>PMID:19465770</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 3gpm" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_19465770}}, adds the Publication Abstract to the page
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*[[Proliferating cell nuclear antigen 3D structures|Proliferating cell nuclear antigen 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 19465770 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_19465770}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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3GPM is a 1 chain structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3GPM OCA].
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==Reference==
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<ref group="xtra">PMID:19465770</ref><references group="xtra"/>
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[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
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[[Category: Freudenthal, B D.]]
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[[Category: Freudenthal BD]]
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[[Category: Gakhar, L.]]
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[[Category: Gakhar L]]
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[[Category: Ramaswamy, S.]]
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[[Category: Ramaswamy S]]
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[[Category: Washington, M T.]]
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[[Category: Washington MT]]
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[[Category: Dna binding protein]]
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[[Category: Dna damage]]
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[[Category: Dna repair]]
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[[Category: Dna replication]]
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[[Category: Dna-binding]]
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[[Category: Isopeptide bond]]
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[[Category: Nucleus]]
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[[Category: Ubl conjugation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Jun 25 08:31:16 2009''
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Current revision

Structure of the trimeric form of the E113G PCNA mutant protein

PDB ID 3gpm

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