Anti-Phospho-ATM S1981 Antibody

Product Name

Anti-Phospho-ATM S1981 Antibody

View all ATM Antibodies

SKU/Catalog Number

P00014

Size

100ug

Form

Liquid (sterile filtered)

Description

Boster Bio Anti-Phospho-ATM S1981 Antibody (Catalog # P00014). Tested in ELISA, WB applications. This antibody reacts with Human.

Storage & Handling

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. Expiration date is one (1) year from date of opening. (Ship on dry ice.)

Cite This Product

Anti-Phospho-ATM S1981 Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # P00014)

Host

Sheep

Contents

0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2, 0.01% (w/v) Sodium Azide

Clonality

Polyclonal

Isotype

IgG

Immunogen

This antibody was affinity purified from whole sheep serum prepared by repeated immunizations with a synthetic peptide corresponding to a region near serine 1981 of human ATM conjugated to KLH using maleimide.

Reactive Species

P00014 is reactive to ATM in Human

Observed Molecular Weight

19 kDa

Calculated molecular weight

350.7 kDa

Background of ATM

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. This antibody is similar to the rabbit host antibody discussed by Bakkenist, C. J. & Kastan, M. B. in Nature 421, 499-506 (2003).

Antibody Validation

Boster validates all antibodies on WB, IHC, ICC, Immunofluorescence, and ELISA with known positive control and negative samples to ensure specificity and high affinity, including thorough antibody incubations.

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Applications

P00014 is guaranteed for ELISA, WB Boster Guarantee

Assay Dilutions Recommendation

The recommendations below provide a starting point for assay optimization. The actual working concentration varies and should be decided by the user.

ELISA: 1:2,000 - 1:10,000
WB: 1:500 - 1:2,000
Affinity purified sheep anti-ATM has been tested by ELISA and western blotting against native form phosphorylated ATM PK.

Validation Images & Assay Conditions

See full target information ATM

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