ATM and ATR Kinases

ATM (Ataxia telangiectasia mutated) and ATR (Ataxia telangiectasia and Rad3 related) are closely related kinases that are activated by DNA damage. They are serine-threonine protein kinases which are part of the phosphatidylinositol 3' kinase-like kinase (PIKK) enzyme family.

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Gene Data

ATM and ATR Kinase Inhibitors

Cat. No. 产品名称/活性
5198 AZ 20
Potent and selective ATR kinase inhibitor; antitumor
6330 AZ 5704
Potent and selective ATM kinase inhibitor; orally bioavailable
3544 KU 55933
Potent and selective ATM kinase inhibitor
3190 Mirin
MRN-ATM pathway inhibitor

ATM (Ataxia telangiectasia mutated) and ATR (Ataxia telangiectasia and Rad3 related) are closely related kinases that are activated by DNA damage. These serine-threonine protein kinases are part of the phosphatidylinositol 3' kinase-like kinase (PIKK) family.

Upon recruitment by the DNA damage binding proteins/complexes (ATRIP for ATR; MRN for ATM), ATM/ATR initiate the DNA damage checkpoint by phosphorylating a number of key proteins. Once activated, the checkpoint leads to cell cycle arrest and either DNA repair or apoptosis. ATM is activated by double stranded breaks and phosphorylates Chk2, whilst ATR is activated by single strand breaks and phosphorylates Chk1.

External sources of pharmacological information for ATM and ATR Kinases :

    Literature for ATM and ATR Kinases

    Tocris offers the following scientific literature for ATM and ATR Kinases to showcase our products. We invite you to request* your copy today!

    *Please note that Tocris will only send literature to established scientific business / institute addresses.


    Cell Cycle and DNA Damage Research Product Guide

    Cell Cycle and DNA Damage Research Product Guide

    This product guide provides a review of the cell cycle and DNA damage research area and lists over 150 products, including research tools for:

    • Cell Cycle and Mitosis
    • DNA Damage Repair
    • Targeted Protein Degradation
    • Ubiquitin Proteasome Pathway
    • Chemotherapy Targets
    Cell Cycle & DNA Damage Repair Poster

    Cell Cycle & DNA Damage Repair Poster

    In normal cells, each stage of the cell cycle is tightly regulated, however in cancer cells many genes and proteins that are involved in the regulation of the cell cycle are mutated or over expressed. This poster summarizes the stages of the cell cycle and DNA repair. It also highlights strategies for enhancing replicative stress in cancer cells to force mitotic catastrophe and cell death.

    ATM and ATR Kinase Gene Data

    Gene Species Gene Symbol Gene Accession No. Protein Accession No.
    ATR Human ATR NM_001184 Q13535
    Mouse Atr NM_019864 Q9JKK8
    ATM Human ATM NM_000051 Q13315
    Mouse Atm NM_007499 Q62388
    Rat Atm NM_001106821 NP_001100291