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・ DNA virus
・ DNA-(apurinic or apyrimidinic site) lyase
・ DNA-3-methyladenine glycosylase
・ DNA-3-methyladenine glycosylase I
・ DNA-3-methyladenine glycosylase II
・ DNA-binding domain
・ DNA-Binding Metallo-intercalators
・ DNA-binding protein
・ DNA-binding protein from starved cells
・ DNA-deoxyinosine glycosylase
・ DNA-directed DNA polymerase
・ DNA-directed RNA interference
・ DNA-encoded chemical library
・ DNA-formamidopyrimidine glycosylase
・ DNA-Functionalized Quantum Dots
DNA-PKcs
・ DNA-SCARS
・ DNA/RNA non-specific endonuclease
・ DNA2.0
・ DNA2L
・ DNAA
・ DnaA
・ DnaB
・ DnaB helicase
・ DnaC
・ DnaD
・ DnaE
・ DnaG
・ DnaH
・ DNAH11


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DNA-PKcs : ウィキペディア英語版
DNA-PKcs

DNA-dependent protein kinase, catalytic subunit, also known as DNA-PKcs, is an enzyme that in humans is encoded by the ''PRKDC'' gene. DNA-PKcs belongs to the phosphatidylinositol 3-kinase-related kinase protein family.
== Function ==

DNA-PKcs is the catalytic subunit of a nuclear DNA-dependent serine/threonine protein kinase called DNA-PK. The second component is the autoimmune antigen Ku. On its own, DNA-PKcs is inactive and relies on Ku to direct it to DNA ends and trigger its kinase activity.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=5591 )〕 DNA-PKcs is required for the non-homologous end joining (NHEJ) pathway of DNA repair, which rejoins double-strand breaks. It is also required for V(D)J recombination, a process that utilizes NHEJ to promote immune system diversity. DNA-PKcs knockout mice have severe combined immunodeficiency due to their V(D)J recombination defect.
Many proteins have been identified as substrates for the kinase activity of DNA-PK. Autophosphorylation of DNA-PKcs appears to play a key role in NHEJ and is thought to induce a conformational change that allows end processing enzymes to access the ends of the double-strand break. DNA-PK also cooperates with ATR and ATM to phosphorylate proteins involved in the DNA damage checkpoint.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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