Cell Signaling Technology

Product Pathways - Cell Cycle / Checkpoint

cdc25C (5H9) Rabbit mAb #4688

Applications Reactivity Sensitivity MW (kDa) Isotype
W H Endogenous 60, 75 Rabbit IgG

Applications Key:  W=Western Blotting
Reactivity Key:  H=Human
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

cdc25C (5H9) Rabbit mAb detects endogenous levels of total cdc25C protein.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a cdc25C full length fusion protein.  

Western Blotting

Western Blotting

Western blot analysis of extracts from HeLa, 293 and K562 cells, using cdc25C (5H9) Rabbit mAb.

Western Blotting

Western Blotting

Western blot analysis of HT29 cell extracts untreated, nocodazole-treated, and λ phosphotase-treated using Phospho-cdc25C (Thr48), #9527 (upper), and cdc25C (5H9) Rabbit mAb (lower).

Background

Cdc25 is a protein phosphatase responsible for dephosphorylating and activating cdc2, a crucial step in regulating the entry of all eukaryotic cells into mitosis (1). cdc25C is constitutively phosphorylated at Ser216 throughout interphase by c-TAK1, while phosphorylation at this site is DNA damage-dependent at the G2/M checkpoint (2). When phosphorylated at Ser216, cdc25C binds to members of the 14-3-3 family of proteins, sequestering cdc25C in the cytoplasm and thereby preventing premature mitosis (3). The checkpoint kinases Chk1 and Chk2 phosphorylate cdc25C at Ser216 in response to DNA damage (4,5).

  1. Jessus, C. and Ozon, R. (1995) Prog. Cell Cycle Res. 1, 215-228.
  2. Peng, C.Y. et al. (1997) Science 277, 1501-1505.
  3. Kumagai, A. and Dunphy, W.G. (1999) Genes Dev. 13, 1067-1072.
  4. Blasina, A. et al. (1999) Curr. Biol. 9, 1-10.
  5. Furnari, B. et al. (1999) Mol. Biol. Cell 10, 833-845.

Application References

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Companion Products

Rabbit Monoclonals Produced Using Epitomics® Technology, U.S. Patent No. 5,675,063.


For Research Use Only. Not For Use In Diagnostic Procedures.

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