All Photos(3)



Rabbit anti-Chk1 Antibody, Affinity Purified

Powered by Bethyl Laboratories, Inc.

CHK1 checkpoint homolog, cell cycle checkpoint kinase, homolog of, S. pombe, Chk1-S, CHK1, Checkpoint, CHK1 checkpoint homolog (S. pombe), checkpoint kinase-1, 1, CHK1 (checkpoint; S.pombe) homolog

biological source


Quality Level

antibody form

affinity purified immunoglobulin

antibody product type

primary antibodies


Powered by Bethyl Laboratories, Inc.

species reactivity



immunohistochemistry: 1:1,000- 1:5,000
immunoprecipitation (IP): 2-10 μg/mg
western blot: 1:1,000-1:5,000

accession no.


shipped in

wet ice

storage temp.


Gene Information

rabbit ... Chk1(1111)


The epitope recognized by PLA0085 maps to a region between residues 250 and 300 of human Checkpoint Kinase 1 using the numbering given in SwissProt entry O14757 (GeneID 1111).

Physical form

Tris-citrate/phosphate buffer, pH 7 to 8 containing 0.09% Sodium Azide

Other Notes

Chk1 functions as a checkpoint protein kinase that is critical to the regulation of the Cdc25a and Cdc25c phosphatases that promote S and G2/M phase progression, respectively. Chk1 kinase activity inhibits cell cycle progression in the presence of DNA damage by phosphorylating Cdc25a and Cdc25c and causing the degradation of Cdc25a and cytoplasmic sequestration of Cdc25c.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class Code

12 - Non Combustible Liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Zheng-Wen Nie et al.
Cell cycle (Georgetown, Tex.), 16(22), 2220-2229 (2017-09-22)
Checkpoint 1 (Chk1), as an important member of DNA replication checkpoint and DNA damage response, has an important role during the G2/M stage of mitosis. In this study, we used porcine oocyte as a model to investigate the function of
Yin Xie et al.
Medical oncology (Northwood, London, England), 31(3), 844-844 (2014-01-28)
Checkpoint kinase 1 (CHEK1) is an evolutionarily conserved Ser/Thr kinase, which mediates cell-cycle arrest after DNA damage, and we previously reported that CHEK1 was overexpressed and associated with poor prognosis in hepatocellular carcinoma (HCC), indicating it was oncogenic gene. In
Eui Young So et al.
Cancer biology & therapy, 15(7), 906-910 (2014-04-24)
The bone marrow (BM) is one of the organs that is sensitive to acute exposure of ionizing radiation (IR); however, the mechanism of its high sensitivity to IR remains to be elucidated. BM is differentiated into dendritic cells (DC) with
Judy Yan et al.
Experimental cell research, 328(1), 132-142 (2014-08-26)
Despite the development of chemoresistance as a major concern in prostate cancer therapy, the underlying mechanisms remain elusive. In this report, we demonstrate that DU145-derived prostate cancer stem cells (PCSCs) progress slowly with more cells accumulating in the G1 phase
Hiroyasu Sakai et al.
Cell cycle (Georgetown, Tex.), 13(6), 1015-1029 (2014-02-21)
Wip1 (protein phosphatase Mg(2+)/Mn(2+)-dependent 1D, Ppm1d) is a nuclear serine/threonine protein phosphatase that is induced by p53 following the activation of DNA damage response (DDR) signaling. Ppm1d(-/-) mouse embryonic fibroblasts (MEFs) exhibit premature senescence under conventional culture conditions; however, little

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