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2lj6
From Proteopedia
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| - | [[ | + | ==Solution Structure and DNA-binding Properties of the Phosphoesterase Domain of DNA Ligase D== |
| + | <StructureSection load='2lj6' size='340' side='right' caption='[[2lj6]], [[NMR_Ensembles_of_Models | 15 NMR models]]' scene=''> | ||
| + | == Structural highlights == | ||
| + | [[2lj6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LJ6 OCA]. <br> | ||
| + | <b>Activity:</b> <span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span><br> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The phosphoesterase (PE) domain of the bacterial DNA repair enzyme LigD possesses distinctive manganese-dependent 3'-phosphomonoesterase and 3'-phosphodiesterase activities. PE exemplifies a new family of DNA end-healing enzymes found in all phylogenetic domains. Here, we determined the structure of the PE domain of Pseudomonas aeruginosa LigD (PaePE) using solution NMR methodology. PaePE has a disordered N-terminus and a well-folded core that differs in instructive ways from the crystal structure of a PaePE*Mn(2+)* sulfate complex, especially at the active site that is found to be conformationally dynamic. Chemical shift perturbations in the presence of primer-template duplexes with 3'-deoxynucleotide, 3'-deoxynucleotide 3'-phosphate, or 3' ribonucleotide termini reveal the surface used by PaePE to bind substrate DNA and suggest a more efficient engagement in the presence of a 3'-ribonucleotide. Spectral perturbations measured in the presence of weakly catalytic (Cd(2+)) and inhibitory (Zn(2+)) metals provide evidence for significant conformational changes at and near the active site, compared to the relatively modest changes elicited by Mn(2+). | ||
| - | + | Solution structure and DNA-binding properties of the phosphoesterase domain of DNA ligase D.,Natarajan A, Dutta K, Temel DB, Nair PA, Shuman S, Ghose R Nucleic Acids Res. 2012 Mar 1;40(5):2076-88. Epub 2011 Nov 13. PMID:22084199<ref>PMID:22084199</ref> | |
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| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | == References == | |
| - | + | <references/> | |
| - | + | __TOC__ | |
| - | + | </StructureSection> | |
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[[Category: Pseudomonas aeruginosa]] | [[Category: Pseudomonas aeruginosa]] | ||
[[Category: Dutta, K.]] | [[Category: Dutta, K.]] | ||
Revision as of 08:25, 30 April 2014
Solution Structure and DNA-binding Properties of the Phosphoesterase Domain of DNA Ligase D
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