title: Some observations on the cofactor requirement for partially purified DNA ligase from Escherichia coli.
mesh_terms: D000255:Adenosine Triphosphate; D002499:Centrifugation, Density Gradient; D002848:Chromatography, DEAE-Cellulose; D002852:Chromatography, Ion Exchange; D003090:Coliphages; D004269:DNA, Bacterial; D004270:DNA, Circular / Q000302:isolation & purification; D004926:Escherichia coli / Q000201:enzymology*; D009243:NAD; D011118:Polynucleotide Ligases / Q000378:metabolism*; D014316:Tritium
chemical_list: D004269:DNA, Bacterial; D004270:DNA, Circular; D009243:NAD; D014316:Tritium; D000255:Adenosine Triphosphate; D011118:Polynucleotide Ligases