Anti-Chk1 Antibody

Anti-Chk1 Polyclonal Antibody for DNA Damage Response Research

This rabbit polyclonal antibody from Antibodies.com targets Chk1 (Checkpoint Kinase 1), a serine/threonine kinase that coordinates the cellular response to DNA damage and replication stress. Chk1 is phosphorylated by ATR following the accumulation of single-stranded DNA and stalled replication forks, making antibodies against it widely used to monitor checkpoint activation, S-phase progression, and genome stability in cancer biology and cell cycle studies.

Validated for Western blot, immunofluorescence, and ELISA workflows, the reagent is supplied unconjugated in a 100 µl volume, giving laboratories flexibility to conjugate it themselves or apply it directly to immunodetection protocols. Polyclonal sera recognize multiple epitopes across the Chk1 protein, which can be advantageous when probing phosphorylation-dependent conformational changes or working across heterogeneous sample preparations.

Reactivity has been confirmed in human, mouse, and rat samples, supporting translational studies that span cultured cell lines, primary tissues, and rodent disease models. Researchers investigating DNA repair mechanisms, replication stress responses, or combination cancer therapies involving checkpoint inhibition commonly deploy this reagent in their experimental pipelines.