Key features and details
- Expression system: Escherichia coli
- Purity: > 90% SDS-PAGE
- Active: Yes
- Suitable for: Functional Studies, SDS-PAGE
Product nameRecombinant human Cdc25A protein
See all Cdc25A proteins and peptides
Activity: 1 nmol of Cdc25A will hydrolyze 10 nmol of pNPP per minute at 37°C at pH 8.0. Assay buffer: 50 mM Tris-HCl, pH 8.0, 50 mM NaCl, 0.1 mM EDTA.
Purity> 90 % SDS-PAGE.
Expression systemEscherichia coli
Protein lengthFull length protein
Our Abpromise guarantee covers the use of ab90763 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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Preparation and Storage
Stability and Storage
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
Constituents: 0.0308% DTT, 0.595% HEPES, 0.232% Sodium chloride
This product is an active protein and may elicit a biological response in vivo, handle with caution.
- Cdc 25a
FunctionTyrosine protein phosphatase which functions as a dosage-dependent inducer of mitotic progression. Directly dephosphorylates CDK1 and stimulates its kinase activity. Also dephosphorylates CDK2 in complex with cyclin E, in vitro.
Sequence similaritiesBelongs to the MPI phosphatase family.
Contains 1 rhodanese domain.
DomainThe phosphodegron motif mediates interaction with specific F-box proteins when phosphorylated. Putative phosphorylation sites at Ser-79 and Ser-82 appear to be essential for this interaction.
modificationsPhosphorylated by CHEK1 on Ser-76, Ser-124, Ser-178, Ser-279, Ser-293 and Thr-507 during checkpoint mediated cell cycle arrest. Also phosphorylated by CHEK2 on Ser-124, Ser-279, and Ser-293 during checkpoint mediated cell cycle arrest. Phosphorylation on Ser-178 and Thr-507 creates binding sites for YWHAE/14-3-3 epsilon which inhibits CDC25A. Phosphorylation on Ser-76, Ser-124, Ser-178, Ser-279 and Ser-293 may also promote ubiquitin-dependent proteolysis of CDC25A by the SCF complex. Phosphorylation of CDC25A at Ser-76 by CHEK1 primes it for subsequent phosphorylation at Ser-79, Ser-82 and Ser-88 by NEK11. Phosphorylation by NEK11 is required for BTRC-mediated polyubiquitination and degradation. Phosphorylation by PIM1 leads to an increase in phosphatase activity. Phosphorylated by PLK3 following DNA damage, leading to promote its ubiquitination and degradation.
Ubiquitinated by the anaphase promoting complex/cyclosome (APC/C) ubiquitin ligase complex that contains FZR1/CDH1 during G1 phase leading to its degradation by the proteasome. Ubiquitinated by a SCF complex containing BTRC and FBXW11 during S phase leading to its degradation by the proteasome. Deubiquitination by USP17L2/DUB3 leads to its stabilization.
- Information by UniProt
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
ab90763 has been referenced in 1 publication.
- Gao X et al. The REG? inhibitor NIP30 increases sensitivity to chemotherapy in p53-deficient tumor cells. Nat Commun 11:3904 (2020). PubMed: 32764536