Detection of Human/Mouse/Rat CDC25A by Western Blot.
Western blot shows lysates of MCF‑7 human breast cancer cell line, CTLL‑2 mouse cytotoxic T cell line, and Nb2‑11 rat lymphoma cell line. PVDF membrane was probed with 1 µg/mL of Human/Mouse/Rat CDC25A Monoclonal Antibody (Catalog # MAB1648) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). Specific bands were detected for CDC25A at approximately 55-60 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Cell Division Cycle 25A (CDC25A) phosphatase removes inorganic phosphate groups covalently attached to tyrosine, serine and threonine residues in proteins (1). Overexpression of CDC25A in small mammary carcinomas has been associated with a poor patient survival prognosis (2). Levels of CDC25A activity are highest in S phase of the cell cycle, where it is suspected to be involved in “checkpoint” control of cell cycle progression (3). Induction of DNA damage with ultraviolet or ionizing radiation causes an increase in CDC25A ubiquinylation and proteosomal degradation, leading to cell cycle block between G1 and S phases (4). One of its major substrates, the kinase CDC2, is activated by dephosphorylation (5). Recombinant CDC25A is truncated to remove the N-terminal regulatory domains and is fully active.
Draetta, G. and J. Eckstein (1997) Biochim. Biophys. Acta. 1332:M53.
Cangi, M. et al. (2000) J. Clin. Invest. 106:753.
Hoffmann, I. et al. (1995) EMBO J. 13:4302.
Sagata, N. (2002) Science 298:1905.
Gautier, J. et al. (1991) Cell 67:197.
Cell Division Cycle 25A
Entrez Gene IDs:
CDC25A; CDC25A2; CDC25A2-CAG isoform; cell division cycle 25 homolog A (S. cerevisiae); cell division cycle 25 homolog A (S. pombe); cell division cycle 25A; Dual specificity phosphatase Cdc25A; EC 220.127.116.11; M-phase inducer phosphatase 1
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