• Product name
  • Description
    Rabbit polyclonal to p35
  • Specificity
    Based on the immunising sequence used for this ab10570, this antibody should also recognise the calpain cleaved p25 fragment of p35 (Nature, 2000, Vol.405:360-364).
  • Tested applications
    Suitable for: IHC-P, WBmore details
  • Species reactivity
    Reacts with: Rat, Human
    Predicted to work with: Mouse, Cow
  • Immunogen

    Synthetic peptide conjugated to KLH, corresponding to amino acids 192-209 of Human p35 Nck5a .

  • Positive control
    • Rat brain extract.



Our Abpromise guarantee covers the use of ab10570 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-P Use a concentration of 5 µg/ml. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
WB 1/1000. Detects a band of approximately 35 kDa (predicted molecular weight: 34 kDa).


  • Function
    p35 is a neuron specific activator of CDK5. The complex p35/CDK5 is required for neurite outgrowth and cortical lamination. Activator of TPKII.
  • Tissue specificity
    Brain and neuron specific.
  • Sequence similarities
    Belongs to the cyclin-dependent kinase 5 activator family.
  • Post-translational
    The p35 form is proteolytically cleaved by calpain, giving rise to the p25 form. P35 has a 5 to 10 fold shorter half-life compared to p25. The conversion results in deregulation of the CDK5 kinase: p25/CDK5 kinase displays an increased and altered tau phosphorylation in comparison to the p35/CDK5 kinase in vivo.
    Probably myristoylated. The Gly-2-Ala mutant is absent of the cell periphery, suggesting that a proper myristoylation signal is essential for the proper distribution of p35.
  • Cellular localization
    Cell membrane. In the primary cortical neurons, p35 is present in the peripheries and nerve terminals and Nucleus. Cytoplasm > perinuclear region. The conversion of p35 to p25 relocalizes the protein from the cell periphery to the cytoplasm, in nuclear and perinuclear regions. In the primary cortical neurons, p25 is primarily concentrated in the cell soma and is largely absent from neurites.
  • Information by UniProt
  • Database links
  • Alternative names
    • CD5R1_HUMAN antibody
    • CDK5 activator 1 antibody
    • CDK5P35 antibody
    • CDK5R antibody
    • CDK5R1 antibody
    • Cyclin dependent kinase 5 regulatory subunit 1 antibody
    • Cyclin-dependent kinase 5 activator 1 antibody
    • Cyclin-dependent kinase 5 regulatory subunit 1 antibody
    • NCK 5A antibody
    • Neuronal CDK5 activator antibody
    • p23 antibody
    • p25 antibody
    • p35 antibody
    • Regulatory partner for CDK5 kinase antibody
    • Tau protein kinase II 23 kDa subunit antibody
    • TPKII regulatory subunit antibody
    see all

Anti-p35 antibody images

  • IHC image of ab10570 staining in human normal cerebral cortex formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab10570, 5µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

References for Anti-p35 antibody (ab10570)

This product has been referenced in:
  • Vahidnia A  et al. Mechanism of arsenic-induced neurotoxicity may be explained through cleavage of p35 to p25 by calpain. Toxicol In Vitro 22:682-7 (2008). Read more (PubMed: 18242949) »

See 1 Publication for this product

Product Wall

Thank you for getting back to me with these details. I am sorry you are still obtaining a high background following western blotting using this antibody. I appreciate the efforts that you have invested in the optimisation of this antibody. This anti...

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