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{{STRUCTURE_4hk1| PDB=4hk1 | SCENE= }}
==Crystal Structure of PCNA from Drosophila melanogaster==
===Crystal Structure of PCNA from Drosophila melanogaster===
<StructureSection load='4hk1' size='340' side='right' caption='[[4hk1]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
{{ABSTRACT_PUBMED_23545643}}
== Structural highlights ==
<table><tr><td colspan='2'>[[4hk1]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HK1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4HK1 FirstGlance]. <br>
</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">mus209, PCNA, CG9193 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 Drosophila melanogaster])</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=4hk1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hk1 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4hk1 RCSB], [http://www.ebi.ac.uk/pdbsum/4hk1 PDBsum]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Proliferating cell nuclear antigen (PCNA) plays essential roles in DNA replication, DNA repair, cell-cycle regulation and chromatin metabolism. The PCNA from Drosophila melanogaster (DmPCNA) was purified and crystallized. The crystal of DmPCNA diffracted to 2.0 A resolution and belonged to space group H3, with unit-cell parameters a = b = 151.16, c = 38.28 A. The structure of DmPCNA was determined by molecular replacement. DmPCNA forms a symmetric homotrimer in a head-to-tail manner. An interdomain connector loop (IDCL) links the N- and C-terminal domains. Additionally, the N-terminal and C-terminal domains contact each other through hydrophobic associations. Compared with human PCNA, the IDCL of DmPCNA has conformational changes, which may explain their difference in function. This work provides a structural basis for further functional and evolutionary studies of PCNA.


==Function==
Structure of PCNA from Drosophila melanogaster.,Wang K, Shi Z, Zhang M, Cheng D Acta Crystallogr Sect F Struct Biol Cryst Commun. 2013 Apr 1;69(Pt 4):387-92., doi: 10.1107/S1744309113004971. Epub 2013 Mar 28. PMID:23545643<ref>PMID:23545643</ref>
[[http://www.uniprot.org/uniprot/PCNA_DROME PCNA_DROME]] 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.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[4hk1]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HK1 OCA].
</div>
 
==See Also==
*[[Proliferating Cell Nuclear Antigen|Proliferating Cell Nuclear Antigen]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Drosophila melanogaster]]
[[Category: Drosophila melanogaster]]
[[Category: Shi, Z B.]]
[[Category: Shi, Z B]]
[[Category: Wang, K.]]
[[Category: Wang, K]]
[[Category: Zhou, Z C.]]
[[Category: Zhou, Z C]]
[[Category: Cell cycle]]
[[Category: Cell cycle]]
[[Category: Cell cycle control]]
[[Category: Cell cycle control]]
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