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  2. DNA ligase - Wikipedia

    en.wikipedia.org/wiki/DNA_ligase

    DNA ligase is a type of enzyme that facilitates the joining of DNA strands together by catalyzing the formation of a phosphodiester bond.It plays a role in repairing single-strand breaks in duplex DNA in living organisms, but some forms (such as DNA ligase IV) may specifically repair double-strand breaks (i.e. a break in both complementary strands of DNA).

  3. Nucleotide excision repair - Wikipedia

    en.wikipedia.org/wiki/Nucleotide_excision_repair

    Nucleotide excision repair is a DNA repair mechanism. [2] DNA damage occurs constantly because of chemicals (e.g. intercalating agents ), radiation and other mutagens . Three excision repair pathways exist to repair single stranded DNA damage: Nucleotide excision repair (NER), base excision repair (BER), and DNA mismatch repair (MMR).

  4. DNA repair - Wikipedia

    en.wikipedia.org/wiki/DNA_repair

    DNA repair is a collection of processes by which a cell identifies and corrects damage to the DNA molecules that encode its genome. [1] In human cells, both normal metabolic activities and environmental factors such as radiation can cause DNA damage, resulting in tens of thousands of individual molecular lesions per cell per day. [2]

  5. Double-strand break repair model - Wikipedia

    en.wikipedia.org/wiki/Double-strand_break_repair...

    Afterwards, the 3’ ssDNA invades the template DNA, and displaces a DNA strand to form a D-loop. DNA polymerase and other accessory factors follows by replacing the missing DNA via DNA synthesis. Ligase then attaches the DNA strand break, [10] resulting in the formation of 2 Holliday junctions. The recombined DNA strands then undergoes ...

  6. Ligation (molecular biology) - Wikipedia

    en.wikipedia.org/wiki/Ligation_(molecular_biology)

    T4 DNA ligase has many valuable properties such as already mentioned catalytic, but it is also responsible for sealing of the gaps between DNA strands, nick-closing activity, repair of the DNA damage, etc. [2] In nanostructures architecture, molecular biology researches - ssDNA is an important application model.

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