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Immunofluorescent analysis of Phospho-Chk2 pThr68 (green) in HeLa cells either left untreated (left panel) or treated with 25ug/ml anisomycin for 30 minutes (right panel). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA (Product # 37525) for 15 minutes at room temperature. Cells were probed with a Phospho-Chk2 pThr68 polyclonal antibody (Product # PA5-17818) at a dilution of 1:100 for at least 1 hour at room temperature, washed with PBS, and incubated with DyLight 488 goat anti-rabbit IgG secondary antibody (Product # 35552) at a dilution of 1:400 for 30 minutes at room temperature. F-Actin (red) was stained with DyLight 554 Phalloidin (Product # 21834) and nuclei (blue) were stained with Hoechst 33342 dye (Product # 62249). Images were taken on a Thermo Scientific ArrayScan or ToxInsight Instrument at 20X magnification.
|Tested species reactivity||Human, Non-human primate|
|Host / Isotype||Rabbit / IgG|
|Immunogen||Synthetic phosphopeptide corresponding to residues surrounding pThr68 of human Chk2|
|Purification||Antigen affinity chromatography|
|Storage buffer||0.01M HEPES, pH 7.5, with 0.15M NaCl, 100µg/ml BSA, 50% glycerol|
|Tested Applications||Dilution *|
|Flow Cytometry (Flow)||1:800|
|Western Blot (WB)||1:1000|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
It is not recommended to aliquot this antibody.
This antibody is not cross-reactive with Chk2 phosphorylated at other sites.
This antibody was orginally validated as part of a Thermo Scientific Cellomics High Content Screening Kit. The antibody sold separately may have slightly different performance and may need to be further optimized for the best results.
In response to DNA damage and replication blocks, cell cycle progression is halted through the control of critical cell cycle regulators. The protein encoded by this gene is a cell cycle checkpoint regulator and putative tumor suppressor. It contains a forkhead-associated protein interaction domain essential for activation in response to DNA damage and is rapidly phosphorylated in response to replication blocks and DNA damage. When activated, the encoded protein is known to inhibit CDC25C phosphatase, preventing entry into mitosis, and has been shown to stabilize the tumor suppressor protein p53, leading to cell cycle arrest in G1. In addition, this protein interacts with and phosphorylates BRCA1, allowing BRCA1 to restore survival after DNA damage. Mutations in this gene have been linked with Li-Fraumeni syndrome, a highly penetrant familial cancer phenotype usually associated with inherited mutations in TP53. Also, mutations in this gene are thought to confer a predisposition to sarcomas, breast cancer, and brain tumors. This nuclear protein is a member of the CDS1 subfamily of serine/threonine protein kinases. Three transcript variants encoding different isoforms have been found for this gene.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Cds1 homolog; Checkpoint kinase 2; checkpoint-like protein CHK2; CHK2 checkpoint homolog; Hucds1; OTTHUMP00000199044; OTTHUMP00000199045; OTTHUMP00000199064; OTTHUMP00000199115; OTTHUMP00000199116; protein kinase CHK2; Serine/threonine-protein kinase Chk2
CDS1; CHEK2; CHK2; hCds1; HuCds1; LFS2; PP1425; RAD53