6k3a: Difference between revisions
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==Crystal structure of human PCNA in complex with DNMT1 PIP box motif.== | |||
<StructureSection load='6k3a' size='340' side='right'caption='[[6k3a]], [[Resolution|resolution]] 2.30Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[6k3a]] is a 6 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6K3A OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6K3A FirstGlance]. <br> | |||
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6k3a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6k3a OCA], [http://pdbe.org/6k3a PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6k3a RCSB], [http://www.ebi.ac.uk/pdbsum/6k3a PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6k3a ProSAT]</span></td></tr> | |||
[[Category: | </table> | ||
== Function == | |||
[[http://www.uniprot.org/uniprot/PCNA_HUMAN PCNA_HUMAN]] 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. Induces a robust stimulatory effect on the 3'-5' exonuclease and 3'-phosphodiesterase, but not apurinic-apyrimidinic (AP) endonuclease, APEX2 activities. Has to be loaded onto DNA in order to be able to stimulate APEX2. Plays a key role in DNA damage response (DDR) by being conveniently positioned at the replication fork to coordinate DNA replication with DNA repair and DNA damage tolerance pathways. Acts as a loading platform to recruit DDR proteins that allow completion of DNA replication after DNA damage and promote postreplication repair: Monoubiquitinated PCNA leads to recruitment of translesion (TLS) polymerases, while 'Lys-63'-linked polyubiquitination of PCNA is involved in error-free pathway and employs recombination mechanisms to synthesize across the lesion.<ref>PMID:19443450</ref> <ref>PMID:18719106</ref> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Arita, K]] | |||
[[Category: Jimenji, T]] | |||
[[Category: Kori, S]] | |||
[[Category: Dna methylation]] | |||
[[Category: Dnmt1]] | |||
[[Category: Pcna]] | |||
[[Category: Pip box]] | |||
[[Category: Replication]] | |||