Key Product Details

Validated by

Independent Antibodies

Species Reactivity

Human

Applications

Immunoprecipitation, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG

Concentration

1.0 mg/ml

View all ATM Antibodies »

Product Specifications

Immunogen

Region between residues 2550 and 2600 of human ATM (Ataxia Telangiectasia Mutated)

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Theoretical MW

351 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for ATM Antibody

Western Blot: ATM Antibody [NB100-271]

Western Blot: ATM Antibody [NB100-271]

Western Blot: ATM Antibody [NB100-271] - Detection of human ATM by western blot. Samples: Whole cell lysate (50 ug) from HeLa, HEK293T, and Jurkat cells prepared using NETN lysis buffer. Antibody: Affinity purified goat ATM antibody [NB100-271] used for WB at 0.4 ug/ml. Detection: Chemiluminescence with an exposure time of 30 seconds. Observed molecular weight ~360 kDa. Theoretical molecular weight 351 kDa.
Immunoprecipitation: ATM Antibody [NB100-271]

Immunoprecipitation: ATM Antibody [NB100-271]

Immunoprecipitation: ATM Antibody [NB100-271] - Detection of human ATM by western blot of immunoprecipitates. Samples: Whole cell lysate (1.0 mg per IP reaction; 20% of IP loaded) from HeLa cells prepared using NETN lysis buffer. Antibodies: Affinity purified goat ATM antibody [NB100-271] used for IP at 3 ug per reaction. ATM was also immunoprecipitated by another goat anti-ATM antibody from Company B. For blotting immunoprecipitated ATM, ATM antibody [NB100-271] was used at 1 ug/ml. Detection: Chemiluminescence with an exposure time of 3 minutes.

Applications for ATM Antibody

Application
Recommended Usage

Immunoprecipitation

2-5 ug/mg lysate

Western Blot

1:2000-1:10000
Application Notes
Western blot. Suggested Working Dilutions: WB - 1:2,500 to 1:10,000 IHC, ICC - Not Determined

Formulation, Preparation, and Storage

Purification

Immunogen affinity purified

Formulation

Tris-Citrate/Phosphate (pH 7.0 - 8.0)

Preservative

0.09% Sodium Azide

Concentration

1.0 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C. Do not freeze.

Background: ATM

ATM (ataxia telangiectasia mutated kinase) is the master regulator of the DNA double-strand break (DSB) repair pathway. This ubiquitously expressed serine/threonine protein kinase belongs to the PI3K-like family of proteins and responds to DSBs caused by oxidative and other genotoxic stresses (1). In addition to regulating the DNA damage response, ATM participates in vesicle and protein transport, T-cell development, gonads/neurological function, pre-B cell allelic exclusion, cell cycle control, and acts as a tumor suppressor (2,3). Defects in ATM are associated with ataxia telangiectasia (AT), T-cell acute lymphoblastic leukemia (TALL), T-prolymphocytic leukemia (TPLL), and B-cell non-Hodgkin lymphomas (BNHL) including mantle cell lymphoma (MCL) and B-cell chronic lymphocytic leukemia (BCLL) (4).

The theoretical molecular weight of ATM is 350 kDa and it has 3 main domains: a FAT (focal adhesion targeting) domain (aa 1960-2566), a PI-3/PI-4 kinase catalytic domain (aa 2712-2962), and a C-terminal FAT domain (aa 3024-3056). ATM exists as a dimer or tetramer in its inactive state. Upon sensing DNA damage, the MRE11-RAD50-NBS1 (MRN) complex recruits ATM. The intricate process of ATM activation involves acetylation by KAT5/TIP60, autophosphorylation at Ser-1981, and dissociation into catalytically active monomers (5). Following activation, ATM phosphorylates multiple substrates such as p53/TP53 and Chk2 involved in DNA repair, checkpoint signaling, and the apoptosis pathway.

References

1. Paull TT. (2015) Mechanisms of ATM Activation. Annu Rev Biochem. 84:711-38. PMID: 25580527

2. Chaudhary MW and Al-Baradie RS. (2014) Ataxia-telangiectasia: future prospects. Appl Clin Genet. 7:159-167. PMID: 25258552

3. Stagni V, Cirotti C, and Barila D. (2018) Ataxia-Telangiectasia Mutated Kinase in the Control of Oxidative Stress, Mitochondria, and Autophagy in Cancer: A Maestro With a Large Orchestra. Front Oncol. 8:73. PMID: 29616191

4. Gumy-Pause F, Wacker P, and Sappino AP. (2004) ATM gene and lymphoid malignancies. Leukemia. 18(2):238-42. PMID: 14628072

5. Adamowicz M. (2018) Breaking up with ATM. J Immunol Sci. 2(1):26-31. PMID: 29652413

Long Name

Ataxia Telangiectasia-mutated

Alternate Names

TEL1, TELO1, TPLL

Gene Symbol

ATM

Additional ATM Products

Product Documents for ATM Antibody

Product Datasheets

Certificate of Analysis

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Product Specific Notices for ATM Antibody

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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