Anti-ATM (phospho S1981)抗体(ab79891)


  • 产品名称Anti-ATM (phospho S1981)抗体
    参阅全部 ATM 一抗
  • 描述
    兔多克隆抗体to ATM (phospho S1981)
  • 经测试应用适用于: ICC/IF, WBmore details
  • 种属反应性
    与反应: Human
  • 免疫原

    Synthetic peptide conjugated to KLH derived from within residues 1950 - 2050 of Human ATM.

    (Peptide available as ab95037.)

  • 阳性对照
    • This antibody gave a positive signal in Irradiated HeLa whole cell lysate.




Our Abpromise guarantee covers the use of ab79891 in the following tested applications.

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

应用 Ab评论 说明
ICC/IF Use at an assay dependent dilution. PubMed: 20802516
WB Use a concentration of 1 µg/ml. Detects a band of approximately 235 kDa (predicted molecular weight: 350 kDa).


  • 功能Serine/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.
  • 组织特异性Found in pancreas, kidney, skeletal muscle, liver, lung, placenta, brain, heart, spleen, thymus, testis, ovary, small intestine, colon and leukocytes.
  • 疾病相关Defects 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.
  • 序列相似性Belongs to the PI3/PI4-kinase family. ATM subfamily.
    Contains 1 FAT domain.
    Contains 1 FATC domain.
    Contains 1 PI3K/PI4K domain.
  • 结构域The FATC domain is required for interaction with KAT5.
  • 翻译后修饰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.
  • 细胞定位Nucleus. Cytoplasmic vesicle. Primarily nuclear. Found also in endocytic vesicles in association with beta-adaptin.
  • Information by UniProt
  • 数据库链接
  • 别名
    • 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 图像

  • All lanes : Anti-ATM (phospho S1981) antibody (ab79891) at 1 µg/ml

    Lane 1 : Irradiated Hela (Control for ATM phospho S1981) Whole Cell Lysate
    Lane 2 : Irradiated Hela (Control for ATM phospho S1981) Whole Cell Lysate with Human ATM peptide (ab116499) at 1 µg/ml
    Lane 3 : Irradiated Hela (Control for ATM phospho S1981) Whole Cell Lysate with Human ATM (phospho S1981) peptide (ab95037) at 1 µg/ml

    Lysates/proteins at 10 µg per lane.

    Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution
    developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 350 kDa
    Observed band size : 235 kDa (why is the actual band size different from the predicted?)

    Exposure time : 2 minutes

Anti-ATM (phospho S1981) antibody (ab79891)参考文献

This product has been referenced in:
  • Salvati E  et al. PARP1 is activated at telomeres upon G4 stabilization: possible target for telomere-based therapy. Oncogene 29:6280-93 (2010). ICC/IF ; Human . Read more (PubMed: 20802516) »

See 1 Publication for this product

Product Wall

Application Western blot
Sample Human Cell lysate - whole cell (HCT116 colon cancer cell line)
Loading amount 60 µg
Specification HCT116 colon cancer cell line
Treatment DMSO control and 10 µM etoposide for 24 hrs
Gel Running Conditions Reduced Denaturing (7%)
Blocking step Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C

Mr. Christian Marx

Verified customer

提交于 Nov 20 2012