2ix2

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{{Seed}}
 
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[[Image:2ix2.png|left|200px]]
 
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==Crystal structure of the heterotrimeric PCNA from Sulfolobus solfataricus==
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The line below this paragraph, containing "STRUCTURE_2ix2", creates the "Structure Box" on the page.
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<StructureSection load='2ix2' size='340' side='right'caption='[[2ix2]], [[Resolution|resolution]] 2.20&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'>[[2ix2]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharolobus_solfataricus Saccharolobus solfataricus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IX2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2IX2 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]] 2.2&#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=2ix2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ix2 OCA], [https://pdbe.org/2ix2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ix2 RCSB], [https://www.ebi.ac.uk/pdbsum/2ix2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ix2 ProSAT]</span></td></tr>
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{{STRUCTURE_2ix2| PDB=2ix2 | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PCNA1_SACS2 PCNA1_SACS2] One of the sliding clamp subunits that acts as a moving platform for DNA processing. Responsible for tethering the catalytic subunit of DNA polymerase to DNA during high-speed replication. Heterotrimer stimulates the Holliday junction resolvase Hjc. DNA polymerase I, DNA ligase and the flap endonuclease may be constitutively associated with the PCNA heterotrimer forming a scanning complex able to couple DNA synthesis and Okazaki fragment maturation.<ref>PMID:12535540</ref> <ref>PMID:17011573</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/ix/2ix2_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=2ix2 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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PCNA is a ring-shaped protein that encircles DNA, providing a platform for the association of a wide variety of DNA-processing enzymes that utilize the PCNA sliding clamp to maintain proximity to their DNA substrates. PCNA is a homotrimer in eukaryotes, but a heterotrimer in crenarchaea such as Sulfolobus solfataricus. The three proteins are SsoPCNA1 (249 residues), SsoPCNA2 (245 residues) and SsoPCNA3 (259 residues). The heterotrimeric protein crystallizes in space group P2(1), with unit-cell parameters a = 44.8, b = 78.8, c = 125.6 A, beta = 100.5 degrees. The crystal structure of this heterotrimeric PCNA molecule has been solved using molecular replacement. The resulting structure to 2.3 A sheds light on the differential stabilities of the interactions observed between the three subunits and the specificity of individual subunits for partner proteins.
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===CRYSTAL STRUCTURE OF THE HETEROTRIMERIC PCNA FROM SULFOLOBUS SOLFATARICUS===
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Structure of the heterotrimeric PCNA from Sulfolobus solfataricus.,Williams GJ, Johnson K, Rudolf J, McMahon SA, Carter L, Oke M, Liu H, Taylor GL, White MF, Naismith JH Acta Crystallogr Sect F Struct Biol Cryst Commun. 2006 Oct 1;62(Pt, 10):944-8. Epub 2006 Sep 19. PMID:17012780<ref>PMID:17012780</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 2ix2" style="background-color:#fffaf0;"></div>
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==About this Structure==
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==See Also==
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2IX2 is a 3 chains structure of sequences from [http://en.wikipedia.org/wiki/Sulfolobus_solfataricus Sulfolobus solfataricus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IX2 OCA].
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*[[Proliferating cell nuclear antigen 3D structures|Proliferating cell nuclear antigen 3D structures]]
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[[Category: Sulfolobus solfataricus]]
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== References ==
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[[Category: Carter, L.]]
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<references/>
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[[Category: Johnson, K.]]
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__TOC__
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[[Category: Liu, H.]]
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</StructureSection>
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[[Category: Mcmahon, S A.]]
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[[Category: Large Structures]]
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[[Category: Naismith, J H.]]
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[[Category: Saccharolobus solfataricus]]
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[[Category: Oke, M.]]
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[[Category: Carter L]]
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[[Category: Taylor, G L.]]
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[[Category: Johnson K]]
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[[Category: White, M F.]]
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[[Category: Liu H]]
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[[Category: Williams, G J.]]
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[[Category: McMahon SA]]
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[[Category: Dna replication]]
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[[Category: Naismith JH]]
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[[Category: Dna-binding]]
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[[Category: Oke M]]
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[[Category: Pcna]]
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[[Category: Taylor GL]]
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[[Category: Replication]]
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[[Category: White MF]]
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[[Category: Sulfolobus sulfataricus]]
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[[Category: Williams GJ]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 08:58:39 2009''
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Current revision

Crystal structure of the heterotrimeric PCNA from Sulfolobus solfataricus

PDB ID 2ix2

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