title: [A cell and genotoxic stress: a reaction to double strand breaks of DNA].
abstract: Double strand breaks (DSB) of DNA represent a major impact on the genome integrity. Cells have developed complex set of reactions for prevention of genotoxic damage and cellular dysfunction. The quickly reacting proteins of human cells include proteinkinases from the family of phophatidylinositol-3-kinase related proteinkinases: ataxia-teleangiectasia mutated (ATM), ataxia-teleangiectasia and Rad3-related (ATR) and catalytic subunit of DNA-dependant proteinkinase (DNA-PKcs). Activated ATM phosphorylates other targets, including proteins p53, Mdm2, Chk1, Chk2, Brca1, Nbs1 and cAb1. This article discusses the molecular response to DSB in detail.
authors.affiliation: Ustav lékarské biochemie LF UK, Hradec Králové. rezacovam@lfhk.cuni.cz
authors.forename: M
authors.initials: M
authors.lastname: Rezácová
authors.forename: J
authors.initials: J
authors.lastname: Vávrová
authors.forename: J
authors.initials: J
authors.lastname: Cerman
mesh_terms: D064007:Ataxia Telangiectasia Mutated Proteins; D002453:Cell Cycle / Q000502:physiology*; D018797:Cell Cycle Proteins / Q000502:physiology; D004249:DNA Damage / Q000502:physiology*; D004268:DNA-Binding Proteins / Q000502:physiology; D004789:Enzyme Activation; D006801:Humans; D011494:Protein Kinases / Q000502:physiology; D017346:Protein Serine-Threonine Kinases / Q000502:physiology; D025521:Tumor Suppressor Proteins / Q000502:physiology
chemical_list: D018797:Cell Cycle Proteins; D004268:DNA-Binding Proteins; D025521:Tumor Suppressor Proteins; D011494:Protein Kinases; C576324:ATM protein, human; D064007:Ataxia Telangiectasia Mutated Proteins; D017346:Protein Serine-Threonine Kinases