DNA Ligase 1
Bacheller Biology
DNA Ligase 1
 
Space-filling model of DNA Ligase 1 (PDB ID 1x9n).  Regions of secondary structures are shown - alpha helices as red and beta-pleated sheets as green.  DNA is shown as a spiral, stick-like structure (purple) in the center of the enzyme.
 
DNA ligases are a class of enzymes that repair (ligate) breaks in the sugar-phosphate backbone of DNA strands.  DNA Ligase 1 is a 120kda ATP-dependent ligase that functions in eukaryotic DNA replication and the base excision repair process.
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3D Protein Image Gallery

#d animation of an intact nucleosome complex