Terminal Transferase from New England Biolabs

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Terminal Transferase

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Description

Terminal transferase (TdT) is a template independent polymerase that catalyzes the addition of deoxynucleotides to the 3' hydroxyl terminus of DNA molecules. Protruding, recessed or blunt-ended double or single-stranded DNA molecules serve as a substrate for TdT. The 58.3 KDa enzyme does not have 5' or 3' exonuclease activity. The addition of Co2+ in the reacton makes tailing more efficient.