Glossary Term
Exonuclease
An Exonuclease is a hydrolase (nuclease) that specifically catalyzes the hydrolysis of terminal phosphodiester bonds of deoxyribonucleotide or ribonucleotide chains, releasing mononucleotides.
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Glossary Term
An Exonuclease is a hydrolase (nuclease) that specifically catalyzes the hydrolysis of terminal phosphodiester bonds of deoxyribonucleotide or ribonucleotide chains, releasing mononucleotides.
Technology
Variation occurring within a species in the length of DNA fragments generated by a specific endonuclease. Such variations are generated by mutations that create or abolish recognition sites for these enzymes.
Glossary Term
Initiation of DNA base excision repair (BER) involves a DNA glycosylase that binds the altered deoxynucleoside in an extrahelical position and catalyzes cleavage of the base-sugar bond. Subsequently, an AP endonuclease or AP lyase activity incises the abasic site, followed by short-patch gap-filling, excision of the base-free sugar-phosphate residue, and ligation.
Glossary Term
Enzymes that exhibit endonuclease activity at a specific short nucleotide sequence to cleave strands of DNA.