Anti-ATM (phospho S1981) antibody [10H11] (ab19304)

Overview

  • Product nameAnti-ATM (phospho S1981) antibody [10H11]
    See all ATM primary antibodies
  • Description
    Mouse monoclonal [10H11] to ATM (phospho S1981)
  • Tested applicationsWB, IP, ICC/IFmore details
  • Species reactivity
    Reacts with: Mouse, Human
  • Immunogen

    Synthetic peptide: SLAFEESpQSTTISS, corresponding to amino acids 1974-1988 of Human ATM Kinase.

  • Positive control
    • This antibody detects the phospho-ATM kinase in human and mouse samples.

Properties

Applications

Our Abpromise guarantee covers the use of ab19304 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/500 - 1/1000. Detects a band of approximately 370 kDa.
IP Use at an assay dependent concentration.
ICC/IF 1/50 - 1/1000.

Target

  • FunctionSerine/threonine protein kinase which activates checkpoint signaling upon double strand breaks (DSBs), apoptosis and genotoxic stresses such as ionizing ultraviolet A light (UVA), thereby acting as a DNA damage sensor. Recognizes the substrate consensus sequence [ST]-Q. Phosphorylates 'Ser-139' of histone variant H2AX/H2AFX at double strand breaks (DSBs), thereby regulating DNA damage response mechanism. Also plays a role in pre-B cell allelic exclusion, a process leading to expression of a single immunoglobulin heavy chain allele to enforce clonality and monospecific recognition by the B-cell antigen receptor (BCR) expressed on individual B lymphocytes. After the introduction of DNA breaks by the RAG complex on one immunoglobulin allele, acts by mediating a repositioning of the second allele to pericentromeric heterochromatin, preventing accessibility to the RAG complex and recombination of the second allele. Also involved in signal transduction and cell cycle control. May function as a tumor suppressor. Necessary for activation of ABL1 and SAPK. Phosphorylates p53/TP53, FANCD2, NFKBIA, BRCA1, CTIP, nibrin (NBN), TERF1, RAD9 and DCLRE1C. May play a role in vesicle and/or protein transport. Could play a role in T-cell development, gonad and neurological function. Plays a role in replication-dependent histone mRNA degradation. Binds DNA ends.
  • Tissue specificityFound in pancreas, kidney, skeletal muscle, liver, lung, placenta, brain, heart, spleen, thymus, testis, ovary, small intestine, colon and leukocytes.
  • Involvement in diseaseDefects in ATM are the cause of ataxia telangiectasia (AT) [MIM:208900]; also known as Louis-Bar syndrome, which includes four complementation groups: A, C, D and E. This rare recessive disorder is characterized by progressive cerebellar ataxia, dilation of the blood vessels in the conjunctiva and eyeballs, immunodeficiency, growth retardation and sexual immaturity. AT patients have a strong predisposition to cancer; about 30% of patients develop tumors, particularly lymphomas and leukemias. Cells from affected individuals are highly sensitive to damage by ionizing radiation and resistant to inhibition of DNA synthesis following irradiation.
    Note=Defects in ATM contribute to T-cell acute lymphoblastic leukemia (TALL) and T-prolymphocytic leukemia (TPLL). TPLL is characterized by a high white blood cell count, with a predominance of prolymphocytes, marked splenomegaly, lymphadenopathy, skin lesions and serous effusion. The clinical course is highly aggressive, with poor response to chemotherapy and short survival time. TPLL occurs both in adults as a sporadic disease and in younger AT patients.
    Note=Defects in ATM contribute to B-cell non-Hodgkin lymphomas (BNHL), including mantle cell lymphoma (MCL).
    Note=Defects in ATM contribute to B-cell chronic lymphocytic leukemia (BCLL). BCLL is the commonest form of leukemia in the elderly. It is characterized by the accumulation of mature CD5+ B lymphocytes, lymphadenopathy, immunodeficiency and bone marrow failure.
  • Sequence similaritiesBelongs to the PI3/PI4-kinase family. ATM subfamily.
    Contains 1 FAT domain.
    Contains 1 FATC domain.
    Contains 1 PI3K/PI4K domain.
  • DomainThe FATC domain is required for interaction with KAT5.
  • Post-translational
    modifications
    Phosphorylated by NUAK1/ARK5. Autophosphorylation on Ser-367, Ser-1893, Ser-1981 correlates with DNA damage-mediated activation of the kinase.
    Acetylation, on DNA damage, is required for activation of the kinase activity, dimer-monomer transition, and subsequent autophosphorylation on Ser-1981. Acetylated in vitro by KAT5/TIP60.
  • Cellular localizationNucleus. Cytoplasmic vesicle. Primarily nuclear. Found also in endocytic vesicles in association with beta-adaptin.
  • Information by UniProt
  • Database links
  • Alternative names
    • A-T mutated antibody
    • A-T mutated homolog antibody
    • AT mutated antibody
    • AT1 antibody
    • ATA antibody
    • Ataxia telangiectasia mutated antibody
    • Ataxia telangiectasia mutated gene antibody
    • Ataxia telangiectasia mutated homolog (human) antibody
    • Ataxia telangiectasia mutated homolog antibody
    • ATC antibody
    • ATD antibody
    • ATDC antibody
    • ATE antibody
    • ATM antibody
    • ATM serine/threonine kinase antibody
    • ATM_HUMAN antibody
    • DKFZp781A0353 antibody
    • MGC74674 antibody
    • OTTHUMP00000232981 antibody
    • Serine protein kinase ATM antibody
    • Serine-protein kinase ATM antibody
    • Serine/threonine-protein kinase ATM antibody
    • Tefu antibody
    • TEL1 antibody
    • TEL1, telomere maintenance 1, homolog antibody
    • TELO1 antibody
    • Telomere fusion protein antibody
    see all

Anti-ATM (phospho S1981) antibody [10H11] images

  • Immunofluorescent analysis of ATM phosphorylated on pSer1981 (green) in HeLa cells left untreated (left panels) or treated with 10uM Camptothecin for 4 hours (right panels). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with a phospho-ATM (pSer1981) monoclonal antibody (ab19304), at a dilution of 1:1000 for at least 1 hour at room temperature, washed with PBS, and incubated with DyLight 488 goat anti-mouse IgG secondary antibody at a dilution of 1:400 for 30 minutes at room temperature. F-Actin (red) was stained with DyLight 554 Phalloidin (top panels). A merged image with nuclei staining (blue) using Hoechst 33342 dye is shown on bottom panels. Images were taken at 20X magnification.

  • Immunofluorescent analysis of Phospho-ATM pSer1981 in 293 untreated cells (left panel) or stimulated cells with 100 mJ UV (right panel) . Formalin-fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 5-10 minutes at room temperature and blocked with 3% BSA-PBS for 30 minutes at room temperature. Cells were probed with a Phospho-ATM pSer1981 Monclonal Antibody (10H11)(ab19304) at a dilution of 1:50 and incubated overnight in a humidified chamber. Cells were washed with PBST and incubated with a DyLight-conjugated secondary antibody for 45 minutes at room temperature in the dark. F-actin (red) was stained with a fluorescent phalloidin and nuclei (blue) were stained with DAPI. Images were taken at a 60X magnification.

  • By Western blot this antibody detects a ~370 kDa protein representing the phospho-ATM kinase in crude lysates from gamma irradiated HeLa cells. In immunofluorescence procedures, ab19304recognizes the phospho-ATM kinase in irradiated human and mouse fibroblasts.

References for Anti-ATM (phospho S1981) antibody [10H11] (ab19304)

ab19304 has not yet been referenced specifically in any publications.

Product Wall

Hello, We do have a reference that shows this antibody being used in mouse cells. Christopher J. Bakkenist Disappearance of the Telomere Dysfunction-Induced Stress Reponse in Fully Senescent Cells (Cancer Research 64, 3748-3752, June 1, 2004)...

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