Proteins that have the ability to structurally alter macromolecules without being altered themselves. Useful for a variety of molecular biology procedures; products include DNA and RNA polymerases, phosphatases, kinases, nucleases, etc.
Uracil-DNA Glycosylase (UDG, UNG) catalyzes the hydrolysis of the N-glycosylic bond between uracil and sugar in DNA and prevents carry-over of DNA in PCR reactions.
Terminal Deoxynucleotidyl Transferase (TdT) catalyzes the template-independent addition of deoxyribonucleotides to the 3'-OH terminus of DNA molecules.
Klenow Fragment is the Large Fragment of DNA Polymerase exhibiting 5'→3' polymerase, 3'→5' exonuclease (proofreading) activities, but lacking 5'→3' exonuclease activity.