6drt
From Proteopedia
(Difference between revisions)
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| - | '''Unreleased structure''' | ||
| - | + | ==Crystal structure of the processivity clamp GP45 complexed with recognition peptide of ligase from bacteriophage T4== | |
| + | <StructureSection load='6drt' size='340' side='right' caption='[[6drt]], [[Resolution|resolution]] 2.12Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[6drt]] is a 6 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6DRT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6DRT FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene></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=6drt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6drt OCA], [http://pdbe.org/6drt PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6drt RCSB], [http://www.ebi.ac.uk/pdbsum/6drt PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6drt ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/DPA5_BPT4 DPA5_BPT4]] Replisome sliding clamp subunit. Responsible for tethering the catalytic subunit of DNA polymerase to DNA during high-speed replication. [[http://www.uniprot.org/uniprot/DNLI_BPT4 DNLI_BPT4]] DNA ligase, which is expressed in the early stage of lytic development, has been implicated in T4 DNA synthesis and genetic recombination. It may also play a role in T4 DNA repair. | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | DNA ligases play essential roles in DNA replication and repair. Bacteriophage T4 DNA ligase is the first ATP-dependent ligase enzyme to be discovered and is widely used in molecular biology, but its structure remained unknown. Our crystal structure of T4 DNA ligase bound to DNA shows a compact alpha-helical DNA-binding domain (DBD), nucleotidyl-transferase (NTase) domain, and OB-fold domain, which together fully encircle DNA. The DBD of T4 DNA ligase exhibits remarkable structural homology to the core DNA-binding helices of the larger DBDs from eukaryotic and archaeal DNA ligases, but it lacks additional structural components required for protein interactions. T4 DNA ligase instead has a flexible loop insertion within the NTase domain, which binds tightly to the T4 sliding clamp gp45 in a novel alpha-helical PIP-box conformation. Thus, T4 DNA ligase represents a prototype of the larger eukaryotic and archaeal DNA ligases, with a uniquely evolved mode of protein interaction that may be important for efficient DNA replication. | ||
| - | + | T4 DNA ligase structure reveals a prototypical ATP-dependent ligase with a unique mode of sliding clamp interaction.,Shi K, Bohl TE, Park J, Zasada A, Malik S, Banerjee S, Tran V, Li N, Yin Z, Kurniawan F, Orellana K, Aihara H Nucleic Acids Res. 2018 Aug 29. pii: 5085977. doi: 10.1093/nar/gky776. PMID:30169742<ref>PMID:30169742</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 6drt" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Aihara, H]] | ||
| + | [[Category: Shi, K]] | ||
| + | [[Category: Gene regulation]] | ||
| + | [[Category: Hydrolase]] | ||
| + | [[Category: Processivity clamp]] | ||
Revision as of 08:04, 26 September 2018
Crystal structure of the processivity clamp GP45 complexed with recognition peptide of ligase from bacteriophage T4
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