【干冰】Anti-ATM Protein Kinase S1981 (RABBIT) Antibody - 600-401-398-【干冰】Anti-ATM Protein Kinase S1981 (RABBIT) Antibody

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背景資料: ATM, the gene mutated in the hereditary disease ataxia-telangiectasia, codes for a protein kinase that acts as a master regulator of cellular responses to DNA double-strand breaks. ATM is normally inactive and the question of how it is activated in the event of DNA damage (due to ionizing radiation for instance) is central to understanding its function. ATM protein is now shown to be present in undamaged cells as an inactive dimer. Low doses of ionizing radiation, which induce only a few DNA breaks, activate at least half of the total ATM protein present, possibly in response to changes in chromatin structure. The ATM gene encodes a 370-kDa protein that belongs to the phosphoinositide 3-kinase (PI(3)K) superfamily, but which phosphorylates proteins rather than lipids. The 350-amino-acid kinase domain at the carboxy terminus of this large protein is the only segment of ATM with an assigned function. Exposure of cells to IR triggers ATM kinase activity, and this function is required for arrests in G1, S and G2 phases of the cell cycle. Several substrates of the ATM kinase participate in these IR-induced cell-cycle arrests. These include p53, Mdm2 and Chk2 in the G1 checkpoint; Nbs1, Brca1, FancD2 and SMC1 in the transient IR-induced S-phase arrest; and Brca1 and hRad17 in the G2/M checkpoint. See Bakkenist, C. J. & Kastan, M. B. Nature 421, 499-506 (2003) for a complete presentation of this antibody's specificity and utility.

免疫原: This antibody was affinity purified from whole rabbit serum prepared by repeated immunizations with a synthetic peptide S-L-A-F-E-E-G-S-Q-S-T-T-I-S-S corresponding to aa 1974-1988 of human ATM conjugated to KLH using maleimide.

保存建議: Store vial at -20° C prior to opening. Aliquot contents and freeze at -20° C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use.

其他: Rockland成立于1962年，是一家老牌抗體原產企業，其位于美國費城郊區的農場保有近20種實驗動物。Rockland公司為生命科學領域提供豐富的、高質量的抗體，包括載脂蛋白、細胞周期/凋亡、細胞因子、細胞信號蛋白、酶類、細胞外基質、轉錄因子(NFkB)和泛素（Ubiquitin）等識別抗體，應用范圍包括Western blot、免疫組化、免疫熒光和ELISA等。另外，Rockland也生產特別齊全的二抗，包括純化、生物素、HRP/ALP、熒光標記二抗，應用十分廣泛。