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1a76

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[[Image:1a76.png|left|200px]]
 
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{{STRUCTURE_1a76| PDB=1a76 | SCENE= }}
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==FLAP ENDONUCLEASE-1 FROM METHANOCOCCUS JANNASCHII==
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<StructureSection load='1a76' size='340' side='right'caption='[[1a76]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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===FLAP ENDONUCLEASE-1 FROM METHANOCOCCUS JANNASCHII===
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1a76]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1A76 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1A76 FirstGlance]. <br>
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{{ABSTRACT_PUBMED_9699635}}
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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&#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=MN:MANGANESE+(II)+ION'>MN</scene></td></tr>
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==About this Structure==
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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=1a76 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a76 OCA], [https://pdbe.org/1a76 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1a76 RCSB], [https://www.ebi.ac.uk/pdbsum/1a76 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1a76 ProSAT]</span></td></tr>
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[[1a76]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1A76 OCA].
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/FEN_METJA FEN_METJA] 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.
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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/a7/1a76_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=1a76 ConSurf].
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<div style="clear:both"></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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__TOC__
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==Reference==
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</StructureSection>
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<ref group="xtra">PMID:009699635</ref><ref group="xtra">PMID:012084915</ref><references group="xtra"/>
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[[Category: Large Structures]]
[[Category: Methanocaldococcus jannaschii]]
[[Category: Methanocaldococcus jannaschii]]
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[[Category: Baek, K.]]
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[[Category: Baek K]]
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[[Category: Cho, Y.]]
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[[Category: Cho Y]]
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[[Category: Hwang, K Y.]]
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[[Category: Hwang KY]]
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[[Category: Kim, H.]]
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[[Category: Kim H]]
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[[Category: 5'-3' exo-endo nuclease complex]]
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[[Category: 5'-3' exo/endo nuclease]]
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[[Category: Dna repair]]
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[[Category: Dna replication]]
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[[Category: Rad27]]
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[[Category: Rth]]
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Current revision

FLAP ENDONUCLEASE-1 FROM METHANOCOCCUS JANNASCHII

PDB ID 1a76

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