View source for 2owo


==Last Stop on the Road to Repair: Structure of E.coli DNA Ligase Bound to Nicked DNA-Adenylate==
<StructureSection load='2owo' size='340' side='right'caption='[[2owo]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2owo]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OWO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OWO 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]] 2.3&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene>, <scene name='pdbligand=OMC:O2-METHYLYCYTIDINE-5-MONOPHOSPHATE'>OMC</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=2owo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2owo OCA], [https://pdbe.org/2owo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2owo RCSB], [https://www.ebi.ac.uk/pdbsum/2owo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2owo ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/DNLJ_ECOLI DNLJ_ECOLI] DNA ligase that catalyzes the formation of phosphodiester linkages between 5'-phosphoryl and 3'-hydroxyl groups in double-stranded DNA using NAD as a coenzyme and as the energy source for the reaction. It is essential for DNA replication and repair of damaged DNA.[HAMAP-Rule:MF_01588]
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ow/2owo_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=2owo ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
NAD(+)-dependent DNA ligases (LigA) are ubiquitous in bacteria and essential for growth. Their distinctive substrate specificity and domain organization vis-a-vis human ATP-dependent ligases make them outstanding targets for anti-infective drug discovery. We report here the 2.3 A crystal structure of Escherichia coli LigA bound to an adenylylated nick, which captures LigA in a state poised for strand closure and reveals the basis for nick recognition. LigA envelopes the DNA within a protein clamp. Large protein domain movements and remodeling of the active site orchestrate progression through the three chemical steps of the ligation reaction. The structure inspires a strategy for inhibitor design.

Last stop on the road to repair: structure of E. coli DNA ligase bound to nicked DNA-adenylate.,Nandakumar J, Nair PA, Shuman S Mol Cell. 2007 Apr 27;26(2):257-71. PMID:17466627<ref>PMID:17466627</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2owo" style="background-color:#fffaf0;"></div>

==See Also==
*[[DNA ligase 3D structures|DNA ligase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli K-12]]
[[Category: Large Structures]]
[[Category: Nair PA]]
[[Category: Nandakumar J]]
[[Category: Shuman S]]