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You are here:Home » Antibodies » Abs to Protein Kinases » Anti -ATM, phosphorylated (Ser1981) (Ataxia Telangiectasia Mutated, ATA, AT Complementation Group A, ATC, ATD, ATE)

Anti -ATM, phosphorylated (Ser1981) (Ataxia Telangiectasia Mutated, ATA, AT
Complementation Group A, ATC, ATD, ATE)


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Clone Host Grade Applications
Monoclonal Rabbit Supernatant B IP IH IC
ATM is a nuclear phosphoprotein involved in Ataxia-telangiectasia (A-T) an autosomal recessive disorder characterized by cerebellar ataxia, immune deficiencies, increased cancer predisposition, chromosomal instability and radiation sensitivity (1-2). This large protein (370kD) is involved in genome stability, cellular responses to DNA damage and cell cycle control. Autophosphorylation at serine 1981 on ATM is required during ATM kinase activation initiated by double strand breaks in genome. After serine 1981 autophosphorylation, ATM phosphorylates downstream proteins (e.g. p53, Chk2) leading to cell cycle arrest and DNA repair (3). More than 100 mutations have been identified so far and are expected to inactivate the ATM protein by truncation or large deletions (4). Defects in ATM contribute to various B cell and T cell Leukemia (5).
Catalog #A4000-16S
ApplicationsSuitable for use in Western Blot, Immunoprecipitation, Immunohistochemistry and Immunocytochemistry. Other applications not tested.
Recommended DilutionWestern Blot: 1:2000-1:10,000
Immunoprecipitation: 1:40
Immunohistochemistry: 1:100-1:250
Immunocytochemistry: 1:100-1:250
Optimal dilutions to be determined by the researcher.
Storage and StabilityMay be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. 
Manufactured incorporating RabMAb® technology under Epitomics US patents, No 5,675,063 and 7,429,487, owned by Abcam.
Clone TypeMonoclonal
Clone No9E149
ConcentrationNot determined
FormSupplied as a liquid in 50mM Tris-glycine, pH 7.4, 0.15M sodium chloride, 0.01% sodium azide, 0.05% BSA, 40% glycerol.
ImmunogenSynthetic peptide corresponding to residues surronding serine 1981 of in human ATM.
SpecificityRecognizes human ATM at ~370kD when phosphorylated at Ser1981.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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