Structural highlights
3n9b is a 2 chain structure with sequence from "bacillus_aeruginosus"_(schroeter_1872)_trevisan_1885 "bacillus aeruginosus" (schroeter 1872) trevisan 1885. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Ligands: | , , , , |
| Related: | 3n9d |
| Gene: | LigD, PA2138 ("Bacillus aeruginosus" (Schroeter 1872) Trevisan 1885) |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The DNA ligase D (LigD) 3'-phosphoesterase (PE) module is a conserved component of the bacterial nonhomologous end-joining (NHEJ) apparatus that performs 3' end-healing reactions at DNA double-strand breaks. Here we report the 1.9 A crystal structure of Pseudomonas aeruginosa PE, which reveals that PE exemplifies a unique class of DNA repair enzyme. PE has a distinctive fold in which an eight stranded beta barrel with a hydrophobic interior supports a crescent-shaped hydrophilic active site on its outer surface. Six essential side chains coordinate manganese and a sulfate mimetic of the scissile phosphate. The PE active site and mechanism are unique vis a vis other end-healing enzymes. We find PE homologs in archaeal and eukaryal proteomes, signifying that PEs comprise a DNA repair superfamily.
Structure of bacterial LigD 3'-phosphoesterase unveils a DNA repair superfamily.,Nair PA, Smith P, Shuman S Proc Natl Acad Sci U S A. 2010 Jul 20;107(29):12822-7. Epub 2010 Jun 29. PMID:20616014[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Nair PA, Smith P, Shuman S. Structure of bacterial LigD 3'-phosphoesterase unveils a DNA repair superfamily. Proc Natl Acad Sci U S A. 2010 Jul 20;107(29):12822-7. Epub 2010 Jun 29. PMID:20616014
