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mouse anti-ATM monoclonal antibody (2C1) 2952


Antibody summary

  • Mouse monoclonal to ATM
  • Isotype: IgG1
  • 100 µg
SKU: 2952parent Category: Tags: , ,
Weight1 lbs
Dimensions9 × 5 × 2 in







1 mg/mL





available sizes

100 µg

mouse anti-ATM monoclonal antibody (2C1) 2952

Tested applications
Recommended dilutions
Immunoblotting: use at 1-10 ug/mL.

Immunoprecipitation: use at 1-10 ug/mL.

Positive controls: Raji or Akata cells.
GST fusion protein expressed in E. coli corresponding to aa 2577- 3056 of full-length ATM.
Size and concentration
100µg and lot specific
Storage Instructions
This antibody is stable for at least one (1) year at -70°C. Avoid multiple freeze-thaw cycles.
Storage buffer
PBS, pH 7.4
protein affinty purification
Compatible secondaries
goat anti-mouse IgG, H&L chain specific, peroxidase conjugated polyclonal antibody 5486
goat anti-mouse IgG, H&L chain specific, biotin conjugated, Conjugate polyclonal antibody 2685
goat anti-mouse IgG, H&L chain specific, FITC conjugated polyclonal antibody 7854
goat anti-mouse IgG, H&L chain specific, peroxidase conjugated polyclonal antibody, crossabsorbed 1706
goat anti-mouse IgG, H&L chain specific, biotin conjugated polyclonal antibody, crossabsorbed 1716
goat anti-mouse IgG, H&L chain specific, FITC conjugated polyclonal antibody, crossabsorbed 1721
Isotype control
Mouse monocolonal IgG1 - Isotype Control
target relevance
Protein names
Serine-protein kinase ATM (EC (Ataxia telangiectasia mutated) (A-T mutated)
Gene names
Protein family
PI3/PI4-kinase family, ATM subfamily
FUNCTION: 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 (PubMed:9733514, PubMed:10550055, PubMed:10839545, PubMed:10910365, PubMed:12556884, PubMed:14871926, PubMed:15456891, PubMed:15448695, PubMed:15916964, PubMed:17923702). Recognizes the substrate consensus sequence [ST]-Q (PubMed:9733514, PubMed:10550055, PubMed:10839545, PubMed:10910365, PubMed:12556884, PubMed:14871926, PubMed:15456891, PubMed:15448695, PubMed:15916964, PubMed:17923702). Phosphorylates 'Ser-139' of histone variant H2AX at double strand breaks (DSBs), thereby regulating DNA damage response mechanism (By similarity). 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 DYRK2, CHEK2, p53/TP53, FBXW7, FANCD2, NFKBIA, BRCA1, CTIP, nibrin (NBN), TERF1, UFL1, RAD9, UBQLN4 and DCLRE1C (PubMed:9843217, PubMed:9733515, PubMed:10550055, PubMed:10766245, PubMed:10839545, PubMed:10910365, PubMed:10802669, PubMed:10973490, PubMed:11375976, PubMed:12086603, PubMed:15456891, PubMed:19965871, PubMed:30612738, PubMed:30886146, PubMed:26774286). 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. Phosphorylation of DYRK2 in nucleus in response to genotoxic stress prevents its MDM2-mediated ubiquitination and subsequent proteasome degradation (PubMed:19965871). Phosphorylates ATF2 which stimulates its function in DNA damage response (PubMed:15916964). Phosphorylates ERCC6 which is essential for its chromatin remodeling activity at DNA double-strand breaks (PubMed:29203878). Phosphorylates TTC5/STRAP at 'Ser-203' in the cytoplasm in response to DNA damage, which promotes TTC5/STRAP nuclear localization (PubMed:15448695). Also involved in pexophagy by mediating phosphorylation of PEX5: translocated to peroxisomes in response to reactive oxygen species (ROS), and catalyzes phosphorylation of PEX5, promoting PEX5 ubiquitination and induction of pexophagy (PubMed:26344566). {ECO:0000250|UniProtKB:Q62388, ECO:0000269|PubMed:10550055, ECO:0000269|PubMed:10766245, ECO:0000269|PubMed:10802669, ECO:0000269|PubMed:10839545, ECO:0000269|PubMed:10910365, ECO:0000269|PubMed:10973490, ECO:0000269|PubMed:11375976, ECO:0000269|PubMed:12086603, ECO:0000269|PubMed:12556884, ECO:0000269|PubMed:14871926, ECO:0000269|PubMed:15448695, ECO:0000269|PubMed:15456891, ECO:0000269|PubMed:15916964, ECO:0000269|PubMed:16086026, ECO:0000269|PubMed:16858402, ECO:0000269|PubMed:17923702, ECO:0000269|PubMed:19431188, ECO:0000269|PubMed:19965871, ECO:0000269|PubMed:26344566, ECO:0000269|PubMed:26774286, ECO:0000269|PubMed:29203878, ECO:0000269|PubMed:30612738, ECO:0000269|PubMed:30886146, ECO:0000269|PubMed:9733514, ECO:0000269|PubMed:9733515, ECO:0000269|PubMed:9843217}.
Catalytic activity
CATALYTIC ACTIVITY: Reaction=ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-[protein]; Xref=Rhea:RHEA:17989, Rhea:RHEA-COMP:9863, Rhea:RHEA-COMP:11604, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999, ChEBI:CHEBI:30616, ChEBI:CHEBI:83421, ChEBI:CHEBI:456216; EC=; Evidence={ECO:0000269|PubMed:15448695, ECO:0000269|PubMed:16858402, ECO:0000269|PubMed:26344566, ECO:0000269|PubMed:28508083, ECO:0000269|PubMed:30886146, ECO:0000269|PubMed:8988033, ECO:0000269|PubMed:9843217}; PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:17990; Evidence={ECO:0000305|PubMed:15448695}; CATALYTIC ACTIVITY: Reaction=ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-threonyl-[protein]; Xref=Rhea:RHEA:46608, Rhea:RHEA-COMP:11060, Rhea:RHEA-COMP:11605, ChEBI:CHEBI:15378, ChEBI:CHEBI:30013, ChEBI:CHEBI:30616, ChEBI:CHEBI:61977, ChEBI:CHEBI:456216; EC=; Evidence={ECO:0000269|PubMed:28508083, ECO:0000269|PubMed:8988033, ECO:0000269|PubMed:9843217};
Subellular location
SUBCELLULAR LOCATION: Nucleus {ECO:0000269|PubMed:9050866, ECO:0000269|PubMed:9150358}. Cytoplasmic vesicle {ECO:0000269|PubMed:9050866, ECO:0000269|PubMed:9150358}. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome {ECO:0000250|UniProtKB:Q62388}. Peroxisome matrix {ECO:0000269|PubMed:26344566}. Note=Primarily nuclear (PubMed:9050866, PubMed:9150358). Found also in endocytic vesicles in association with beta-adaptin (PubMed:9707615). Translocated to peroxisomes in response to reactive oxygen species (ROS) by PEX5 (PubMed:26344566). {ECO:0000269|PubMed:26344566, ECO:0000269|PubMed:9050866, ECO:0000269|PubMed:9150358, ECO:0000269|PubMed:9707615}.
TISSUE SPECIFICITY: Found in pancreas, kidney, skeletal muscle, liver, lung, placenta, brain, heart, spleen, thymus, testis, ovary, small intestine, colon and leukocytes.
SUBUNIT: Homodimer (PubMed:28508083). Dimers or tetramers in inactive state. On DNA damage, autophosphorylation dissociates ATM into monomers rendering them catalytically active. Binds p53/TP53, ABL1, BRCA1, NBN/nibrin and TERF1. Part of the BRCA1-associated genome surveillance complex (BASC), which contains BRCA1, MSH2, MSH6, MLH1, ATM, BLM, PMS2 and the RAD50-MRE11-NBN protein complex. This association could be a dynamic process changing throughout the cell cycle and within subnuclear domains. Interacts with RAD17; DNA damage promotes the association. Interacts with EEF1E1; the interaction, induced on DNA damage, up-regulates TP53. Interacts with DCLRE1C, KAT8, KAT5, NABP2, ATMIN and CEP164. Interacts with AP2B1 and AP3B2; the interaction occurs in cytoplasmic vesicles (By similarity). Interacts with TELO2 and TTI1. Interacts with DDX1. Interacts with BRAT1. Interacts with CYREN (via XLF motif) (By similarity). Interacts (via microbody targeting signal) with PEX5; promoting translocation to peroxisomes in response to reactive oxygen species (ROS) (PubMed:26344566). {ECO:0000250|UniProtKB:Q62388, ECO:0000269|PubMed:11418864, ECO:0000269|PubMed:12556884, ECO:0000269|PubMed:14871926, ECO:0000269|PubMed:15456891, ECO:0000269|PubMed:15680327, ECO:0000269|PubMed:15923642, ECO:0000269|PubMed:16141325, ECO:0000269|PubMed:17525732, ECO:0000269|PubMed:18283122, ECO:0000269|PubMed:18449195, ECO:0000269|PubMed:18710941, ECO:0000269|PubMed:20427287, ECO:0000269|PubMed:20801936, ECO:0000269|PubMed:20810650, ECO:0000269|PubMed:22977523, ECO:0000269|PubMed:26344566, ECO:0000269|PubMed:28508083, ECO:0000269|PubMed:9168117, ECO:0000269|PubMed:9707615, ECO:0000269|PubMed:9843217}.
Post-translational modification
PTM: Phosphorylated by NUAK1/ARK5 (PubMed:12409306). Autophosphorylation on Ser-367, Ser-1893, Ser-1981 correlates with DNA damage-mediated activation of the kinase (PubMed:12556884, PubMed:16141325, PubMed:16858402, PubMed:21144835, PubMed:27664052). During the late stages of DNA damage response, dephosphorylated following deacetylation by SIRT7, leading to ATM deactivation (PubMed:30944854). {ECO:0000269|PubMed:12409306, ECO:0000269|PubMed:12556884, ECO:0000269|PubMed:16141325, ECO:0000269|PubMed:16858402, ECO:0000269|PubMed:21144835, ECO:0000269|PubMed:27664052, ECO:0000269|PubMed:30944854}.; PTM: Acetylation, on DNA damage, is required for activation of the kinase activity, dimer-monomer transition, and subsequent autophosphorylation on Ser-1981 (PubMed:12556884, PubMed:16141325, PubMed:16858402, PubMed:17923702, PubMed:21144835). Acetylated in vitro by KAT5/TIP60 (PubMed:16141325). Deacetylated by SIRT7 during the late stages of DNA damage response, promoting ATM dephosphorylation and subsequent deactivation (PubMed:30944854). {ECO:0000269|PubMed:12556884, ECO:0000269|PubMed:16141325, ECO:0000269|PubMed:16858402, ECO:0000269|PubMed:17923702, ECO:0000269|PubMed:21144835, ECO:0000269|PubMed:30944854}.
Target Relevance information above includes information from UniProt accession : Q13315
The UniProt Consortium


Human Testis (formalin-fixed, paraffin-embedded) stained with ATM antibody at 5 µg/mL followed by biotinylated anti-mouse IgG secondary antibody, alkaline phosphatase-streptavidin and chromogen.
Detection of human ATM protein using anti-ATM 2C1 monoclonal antibody (2952) by western blot or immunoprecipitation.
Human Kidney (formalin-fixed, paraffin-embedded) stained with ATM antibody at 5 µg/mL followed by biotinylated anti-mouse IgG secondary antibody, alkaline phosphatase-streptavidin and chromogen.
Whole cell extract (30 µg) was separated by 5% SDS-PAGE, and the membrane was blotted with ATM antibody [2C1] (2952) diluted at 1:1000.
HeLa whole cell extract and nuclear extracts (30 µg) were separated by 5% SDS-PAGE, and the membrane was blotted with ATM antibody [2C1] (2952) diluted at 1:500. The HRP-conjugated anti-mouse IgG antibody was used to detect the primary antibody.
ATM antibody [2C1] detects ATM protein at nucleus by immunohistochemical analysis.
Sample: Paraffin-embedded human breast carcinoma.
ATM stained by ATM antibody [2C1] (2952) diluted at 1:100.
Antigen Retrieval: Citrate buffer, pH 6.0, 15 min
Untreated (?) and treated (+) 293T whole cell extracts (60 µg) were separated by 5% SDS-PAGE, and the membrane was blotted with ATM antibody [2C1] (2952) diluted at 1:1000. The HRP-conjugated anti-mouse IgG antibody was used to detect the primary antibody, and the signal was developed with Trident ECL plus-Enhanced.


Published literature highly relevant to the biological target of this product and referencing this antibody or clone are retrieved from PubMed database provided by The United States National Library of Medicine at the National Institutes of Health.

There are 332 publications in our database for this antibody or clone. Here are the latest 5, for more click below.

37503842The HDAC6-RNF168 axis regulates H2A/H2A.X ubiquitination to enable double-strand break repairQiu L, Xu W, Lu X, Chen F, Chen Y, Tian Y, Zhu Q, Liu X, Wang Y, Pei XH, Xu X, Zhang J, Zhu WG.Nucleic Acids Res. 2023 Sep 22;51(17):9166-9182. doi: 10.1093/nar/gkad631.
36603026Ataxia Telangiectasia Mutated and MSH2 Control Blunt DNA End Joining in Ig Class Switch RecombinationSible E, Attaway M, Fiorica G, Michel G, Chaudhuri J, Vuong BQ.J Immunol. 2023 Feb 15;210(4):369-376. doi: 10.4049/jimmunol.2200590.
36200829APE1 assembles biomolecular condensates to promote the ATR-Chk1 DNA damage response in nucleolusLi J, Zhao H, McMahon A, Yan S.Nucleic Acids Res. 2022 Oct 14;50(18):10503-10525. doi: 10.1093/nar/gkac853.
36185355RPRM negatively regulates ATM levels through its nuclear translocation on irradiation mediated by CDK4/6 and IPO11Zhang Y, Ou G, Ye Z, Zhou Z, Cao Q, Li M, Wang J, Cao J, Yang H.iScience. 2022 Sep 13;25(10):105115. doi: 10.1016/j.isci.2022.105115. eCollection 2022 Oct 21.
36139416Inhibition of BRD4 Promotes Pexophagy by Increasing ROS and ATM ActivationKim YH, Jo DS, Park NY, Bae JE, Kim JB, Lee HJ, Kim SH, Kim SH, Lee S, Son M, Park K, Jeong K, Yeom E, Cho DH.Cells. 2022 Sep 12;11(18):2839. doi: 10.3390/cells11182839.


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