Chk2 Antibody (1C12B8)

Images

 
Western Blot: Chk2 Antibody (1C12B8) [NBP1-47549] - Analysis using CHK2 mouse mAb against cell lysate from various cell types.
Immunocytochemistry/ Immunofluorescence: Chk2 Antibody (1C12B8) [NBP1-47549] - Analysis of Hela cells using CHK2 mouse mAb (green), showing nuclear localization. Red: Actin filaments have been labeled with DY-554 ...read more
Immunohistochemistry-Paraffin: Chk2 Antibody (1C12B8) [NBP1-47549] - Analysis of human lung carcinoma (A), liver carcinoma (B), breast carcinoma (C) and kiney carcinoma (D), showing nuclear localization with DAB ...read more

Product Details

Summary
Reactivity HuSpecies Glossary
Applications WB, ELISA, ICC/IF, IHC, IHC-Fr, IHC-P
Clone
1C12B8
Clonality
Monoclonal
Host
Mouse
Conjugate
Unconjugated

Order Details

Chk2 Antibody (1C12B8) Summary

Immunogen
Purified recombinant fragment of human CHK2 (aa481-531) expressed in E. Coli.
Isotype
IgG2b
Clonality
Monoclonal
Host
Mouse
Gene
CHEK2
Purity
Unpurified
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Western Blot 1:500 - 1:2000
  • ELISA 1:10000
  • Immunocytochemistry/Immunofluorescence 1:200 - 1:1000
  • Immunohistochemistry 1:10 - 1:500
  • Immunohistochemistry-Frozen 1:200 - 1:1000
  • Immunohistochemistry-Paraffin 1:200 - 1:1000
Application Notes
This antibody is useful in Western Blot, Immunohistochemistry-Paraffin, Immunohistochemistry-Frozen, Immunofluorescence, ELISA.
Theoretical MW
61 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

Storage
Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
Buffer
Ascites
Preservative
0.03% Sodium Azide
Purity
Unpurified

Alternate Names for Chk2 Antibody (1C12B8)

  • CDS1
  • CHEK2
  • CHK2 checkpoint homolog (S. pombe)
  • Chk2
  • EC 2.7.11
  • EC 2.7.11.1
  • HuCds1
  • LFS2
  • PP1425
  • Rad53
  • S.pombe) homolog

Background

CHK2 is a serine/threonine kinase involved in the control of cell cycle checkpoints, and may also participate in transduction of the DNA damage and replicational stress signals. CHK2 is the mammalian ortholog of the budding yeast Rad53 and fission yeast Cds1 checkpoint kinases. The amino-terminal domain of CHK2 contains a series of seven serine and threonine residues (Ser19, Thr26, Ser28, Ser33, Ser35, Ser50 and Thr68) followed by glutamine (SQ or TQ motif). These are known to be preferred sites for phosphorylation by ATM/ATR kinases. Indeed, after DNA damage by ionizing radiation (IR), UV irradiation or hydroxyurea treatment, Thr68 and other sites in this region become phosphorylated by ATM/ATR. The SQ/TQ cluster domain, therefore, seems to have a regulatory function. Phosphorylation at Thr68 is a prerequisite for the subsequent activation step, which is attributable to autophosphorylation of Chk2 on residues Thr383 and Thr387 in the activation loop of the kinase domain. CHK2 inhibits CDC25C phosphatase by phosphorylating it on Ser-216, preventing the entry into mitosis. This kinase may have a role in meiosis as well. Kinase activity is up regulated by autophosphorylation and the protein is rapidly phosphorylated in response to DNA damage and to replication block. Defects in CHEK2 are associated with Li-Fraumeni syndrome (LFS); a highly penetrant familial cancer phenotype usually associated with inherited mutations in p53/TP53. Defects in CHEK2 are also found in some patients with prostate cancer (CaP) or osteosarcoma (OSRC). Substantial amino acid variants exist in some cancer tissues. Numerous truncated splice variants exist for this protein.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Video Protocols

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ICC/IF Video Protocol

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Bioinformatics

Gene Symbol CHEK2
Entrez