Polyclonal Antibody to p40 (deltaNp63) (Squamous, Basal & Myoepithelial Cell Marker)
Figure-1: Formalin-fixed, paraffin-embedded Prostate Carcinoma stained with p40 Rabbit Polyclonal Antibody.
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Format : | Purified |
Amount : | 100 µg |
Isotype : | Rabbit IgG |
Purification : | Affinity Chromatography |
Content : | 100 µg in 500 µl PBS containing 0.05% BSA and 0.05% sodium azide. Sodium azide is highly toxic. |
Storage condition : | Store the antibody at 4°C; stable for 6 months. For long-term storage; store at -20°C. Avoid repeated freeze and thaw cycles. |
p40 (p63 delta) is a marker recently determined to be highly specific for squamous basal cells in the immunohistochemistry (IHC) application. The current more routinely recommended marker, p63, appears to have less specificity compared to p40, especially on squamous cell tumors. The ability to differentiate between lung adenocarcinoma vs. squamous cell carcinoma is difficult and has bearing on the different therapeutic avenues for each subtype treatment. p63 antibody's ability to distinguish between the tumor types appears to be inferior when compared to p40. The ability to utilize an antibody probe for p40 as a squamous cell marker bolsters its use for future sub-classification of lung cancers, especially by immunohistochemical techniques.
Western Blot (1-2ug/ml); Immunohistochemistry (Formalin-fixed) (1-2ug/ml for 30 minutes at RT)(Staining of formalin-fixed tissues requires heating tissue sections in 1mM EDTA, pH 9.0, for 45 min at 95°C followed by cooling at RT for 20 minutes)
For Research Use Only. Not for use in diagnostic/therapeutics procedures.
Subcellular location: | Nucleus |
Post transnational modification: | Ubiquitinated. Polyubiquitination involves WWP1 and leads to proteasomal degradation of this protein. |
Tissue Specificity: | Widely expressed, notably in heart, kidney, placenta, prostate, skeletal muscle, testis and thymus, although the precise isoform varies according to tissue type. Progenitor cell layers of skin, breast, eye and prostate express high levels of DeltaN-type isoforms. Isoform 10 is predominantly expressed in skin squamous cell carcinomas, but not in normal skin tissues. |
BioGrid: | 114181. 129 interactions. |
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