3jsn

Crystal structure of the adenylation domain of NAD+-dependent DNA ligase from Staphylococcus aureus

spinqualitylabelsall models 3jsn, resolution 1.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3jsn is a 1 chain structure with sequence from "micrococcus_aureus"_(rosenbach_1884)_zopf_1885 "micrococcus aureus" (rosenbach 1884) zopf 1885. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Related: 3jsl Gene: LigA ("Micrococcus aureus" (Rosenbach 1884) Zopf 1885) Activity: DNA ligase (NAD(+)), with EC number 6.5.1.2 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 DNA ligase catalyzes phosphodiester-bond formation between immediately adjacent 5'-phosphate and 3'-hydroxyl groups in double-stranded DNA and plays a central role in many cellular and biochemical processes, including DNA replication, repair and recombination. Bacterial NAD(+)-dependent DNA ligases have been extensively characterized as potential antibacterial targets because of their essentiality and their structural distinction from human ATP-dependent DNA ligases. The high-resolution structure of the adenylation domain of Staphylococcus aureus NAD(+)-dependent DNA ligase establishes the conserved domain architecture with other bacterial adenylation domains. Two apo crystal structures revealed that the active site possesses the preformed NAD(+)-binding pocket and the 'C2 tunnel' lined with hydrophobic residues: Leu80, Phe224, Leu287, Phe295 and Trp302. The C2 tunnel is unique to bacterial DNA ligases and the Leu80 side chain at the mouth of the tunnel points inside the tunnel and forms a narrow funnel in the S. aureus DNA ligase structure. Taken together with other DNA ligase structures, the S. aureus DNA ligase structure provides a basis for a more integrated understanding of substrate recognition and catalysis and will be also be of help in the development of small-molecule inhibitors. Structure of the adenylation domain of NAD(+)-dependent DNA ligase from Staphylococcus aureus.,Han S, Chang JS, Griffor M Acta Crystallogr Sect F Struct Biol Cryst Commun. 2009 Nov 1;65(Pt, 11):1078-82. Epub 2009 Oct 13. PMID:19923722 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also DNA ligase

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