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X-ray repair complementing defective repair in Chinese hamster cells 5 (double-strand-break rejoining) (HGNC Symbol)
Entrez gene summary
The protein encoded by this gene is the 80-kilodalton subunit of the Ku heterodimer protein which is also known as ATP-dependant DNA helicase II or DNA repair protein XRCC5. Ku is the DNA-binding component of the DNA-dependent protein kinase, and it functions together with the DNA ligase IV-XRCC4 complex in the repair of DNA double-strand break by non-homologous end joining and the completion of V(D)J recombination events. This gene functionally complements Chinese hamster xrs-6, a mutant defective in DNA double-strand break repair and in ability to undergo V(D)J recombination. A rare microsatellite polymorphism in this gene is associated with cancer in patients of varying radiosensitivity. [provided by RefSeq, Jul 2008]
P13010 [Direct mapping] X-ray repair cross-complementing protein 5
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Predicted intracellular proteins Plasma proteins Cancer-related genes Candidate cancer biomarkers Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
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GO:0000723 [telomere maintenance] GO:0000783 [nuclear telomere cap complex] GO:0000784 [nuclear chromosome, telomeric region] GO:0003677 [DNA binding] GO:0003684 [damaged DNA binding] GO:0003690 [double-stranded DNA binding] GO:0003691 [double-stranded telomeric DNA binding] GO:0004003 [ATP-dependent DNA helicase activity] GO:0005515 [protein binding] GO:0005524 [ATP binding] GO:0005634 [nucleus] GO:0005654 [nucleoplasm] GO:0005730 [nucleolus] GO:0005829 [cytosol] GO:0005886 [plasma membrane] GO:0006281 [DNA repair] GO:0006302 [double-strand break repair] GO:0006303 [double-strand break repair via nonhomologous end joining] GO:0006310 [DNA recombination] GO:0006351 [transcription, DNA-templated] GO:0008022 [protein C-terminus binding] GO:0016020 [membrane] GO:0016032 [viral process] GO:0016817 [hydrolase activity, acting on acid anhydrides] GO:0031625 [ubiquitin protein ligase binding] GO:0032481 [positive regulation of type I interferon production] GO:0032508 [DNA duplex unwinding] GO:0042162 [telomeric DNA binding] GO:0043564 [Ku70:Ku80 complex] GO:0044212 [transcription regulatory region DNA binding] GO:0044822 [poly(A) RNA binding] GO:0045087 [innate immune response] GO:0045892 [negative regulation of transcription, DNA-templated] GO:0048660 [regulation of smooth muscle cell proliferation] GO:0051575 [5'-deoxyribose-5-phosphate lyase activity] GO:0070419 [nonhomologous end joining complex] GO:0071480 [cellular response to gamma radiation] GO:0071481 [cellular response to X-ray] GO:0075713 [establishment of integrated proviral latency]