Definitions of T4 DNA Ligase

  1. Poly( deoxyribonucleotide): poly( deoxyribonucleotide) ligases. Enzymes that catalyze the joining of preformed deoxyribonucleotides in phosphodiester linkage during genetic processes during repair of a single- stranded break in duplex DNA. The class includes both EC 6. 5. 1. 1 ( ATP) and EC 6. 5. 1. 2 ( NAD).