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2izo

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==STRUCTURE OF AN ARCHAEAL PCNA1-PCNA2-FEN1 COMPLEX==
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<StructureSection load='2izo' size='340' side='right' caption='[[2izo]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
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==Structure of an Archaeal PCNA1-PCNA2-FEN1 Complex==
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<StructureSection load='2izo' size='340' side='right'caption='[[2izo]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2izo]] is a 3 chain structure with sequence 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=2IZO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2IZO FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2izo]] 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=2IZO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2IZO FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><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]] 2.9&#8491;</td></tr>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2ix2|2ix2]]</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=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2izo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2izo OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2izo RCSB], [http://www.ebi.ac.uk/pdbsum/2izo PDBsum]</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=2izo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2izo OCA], [https://pdbe.org/2izo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2izo RCSB], [https://www.ebi.ac.uk/pdbsum/2izo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2izo ProSAT]</span></td></tr>
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<table>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/FEN_SACS2 FEN_SACS2] Structure-specific nuclease with 5'-flap endonuclease and 5'-3' exonuclease activities involved in DNA replication and repair. During DNA replication, cleaves the 5'-overhanging flap structure that is generated by displacement synthesis when DNA polymerase encounters the 5'-end of a downstream Okazaki fragment. Binds the unpaired 3'-DNA end and kinks the DNA to facilitate 5' cleavage specificity. Cleaves one nucleotide into the double-stranded DNA from the junction in flap DNA, leaving a nick for ligation. Also involved in the base excision repair (BER) pathway. Acts as a genome stabilization factor that prevents flaps from equilibrating into structures that lead to duplications and deletions. Also possesses 5'-3' exonuclease activity on nicked or gapped double-stranded DNA (By similarity). 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>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
<jmolCheckbox>
<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/iz/2izo_consurf.spt"</scriptWhenChecked>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/iz/2izo_consurf.spt"</scriptWhenChecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<text>to colour the structure by Evolutionary Conservation</text>
<text>to colour the structure by Evolutionary Conservation</text>
</jmolCheckbox>
</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/chain_selection.php?pdb_ID=2ata ConSurf].
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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=2izo 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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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 2izo" style="background-color:#fffaf0;"></div>
==See Also==
==See Also==
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*[[Endonuclease|Endonuclease]]
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*[[Endonuclease 3D structures|Endonuclease 3D structures]]
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*[[Proliferating Cell Nuclear Antigen|Proliferating Cell Nuclear Antigen]]
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*[[Proliferating cell nuclear antigen 3D structures|Proliferating cell nuclear antigen 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Sulfolobus solfataricus]]
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[[Category: Large Structures]]
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[[Category: Dore, A S.]]
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[[Category: Saccharolobus solfataricus]]
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[[Category: Kilkenny, M L.]]
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[[Category: Dore AS]]
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[[Category: Pearl, L H.]]
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[[Category: Kilkenny ML]]
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[[Category: Roe, S M.]]
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[[Category: Pearl LH]]
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[[Category: Dna repair]]
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[[Category: Roe SM]]
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[[Category: Dna replication]]
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[[Category: Dna-binding]]
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[[Category: Endonuclease]]
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[[Category: Excision repair]]
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[[Category: Fen1]]
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[[Category: Hydrolase]]
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[[Category: Magnesium]]
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[[Category: Metal-binding]]
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[[Category: Nuclease]]
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[[Category: Pcna]]
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Current revision

Structure of an Archaeal PCNA1-PCNA2-FEN1 Complex

PDB ID 2izo

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