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'''Unreleased structure'''


The entry 6ams is ON HOLD
==Crystal structure of the DNA polymerase III subunit beta from Pseudomonas aeruginosa==
<StructureSection load='6ams' size='340' side='right'caption='[[6ams]], [[Resolution|resolution]] 2.39&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6ams]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa_PAO1 Pseudomonas aeruginosa PAO1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6AMS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6AMS FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.39&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6ams FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ams OCA], [https://pdbe.org/6ams PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6ams RCSB], [https://www.ebi.ac.uk/pdbsum/6ams PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6ams ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/DPO3B_PSEAE DPO3B_PSEAE] Confers DNA tethering and processivity to DNA polymerases and other proteins. Acts as a clamp, forming a ring around DNA (a reaction catalyzed by the clamp-loading complex) which diffuses in an ATP-independent manner freely and bidirectionally along dsDNA. Initially characterized for its ability to contact the catalytic subunit of DNA polymerase III (Pol III), a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria; Pol III exhibits 3'-5' exonuclease proofreading activity. The beta chain is required for initiation of replication as well as for processivity of DNA replication.[UniProtKB:P0A988]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Bacterial sliding clamps bind to DNA and act as protein-protein interaction hubs for several proteins involved in DNA replication and repair. The partner proteins all bind to a common pocket on sliding clamps via conserved linear peptide sequence motifs, which suggest the pocket as an attractive target for development of new antibiotics. Herein we report the X-ray crystal structures and biochemical characterization of beta sliding clamps from the Gram-negative pathogens Pseudomonas aeruginosa, Acinetobacter baumannii and Enterobacter cloacae. The structures reveal close similarity between the pathogen and Escherichia coli clamps and similar patterns of binding to linear clamp-binding motif peptides. The results suggest that linear motif-sliding clamp interactions are well conserved and an antibiotic targeting the sliding clamp should have broad-spectrum activity against Gram-negative pathogens.


Authors: McGrath, A.E., Oakley, A.J.
Crystal structures and biochemical characterization of DNA sliding clamps from three Gram-negative bacterial pathogens.,McGrath AE, Martyn AP, Whittell LR, Dawes FE, Beck JL, Dixon NE, Kelso MJ, Oakley AJ J Struct Biol. 2018 Oct 23. pii: S1047-8477(18)30281-8. doi:, 10.1016/j.jsb.2018.10.008. PMID:30366028<ref>PMID:30366028</ref>


Description: Crystal structure of the DNA polymerase III subunit beta from Pseudomonas aeruginosa
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
[[Category: Mcgrath, A.E]]
<div class="pdbe-citations 6ams" style="background-color:#fffaf0;"></div>
[[Category: Oakley, A.J]]
 
==See Also==
*[[DNA polymerase 3D structures|DNA polymerase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Pseudomonas aeruginosa PAO1]]
[[Category: McGrath AE]]
[[Category: Oakley AJ]]
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