Recombinant rabbit monoclonal [P40/8225R] antibody to p63.
Specificity
p63 consists of two major isoforms-TAp63 and delta-Np63. These isoforms differ in the structure of the N-terminal domains. The TAp63 isoform (identified by anti-p63 antibody) contains a transactivation-competent TA domain with homology to p53, which regulates the expression of the growth-inhibitory genes. In contrast, DNp63 isoform (identified by anti-p40 antibody) contains an alternative transcriptionally-inactive delta-N domain, which antagonizes the activity of TAp63 and p53. The p40 (clone P40/8225R) antibody recognizes exclusively delta-Np63 but not TAp63. p40 is a squamous cell carcinoma specific antibody. It reacts with the vast majority of cases of squamous cell carcinomas of various origins, but not with adenocarcinomas. It is particularly useful in differentiating lung squamous cell carcinoma from lung poorly differentiated adenocarcinoma. p40 antibody can also be used as an alternative basal cell/myoepithelial cell marker, which has similar sensitivity and specificity as that of p63 antibody. Therefore, p40 antibody may also be used as an alternative immunohistochemical marker for determining prostate adenocarcinoma vs. benign prostate glands and for determining breast intraductal carcinoma vs. invasive breast ductal carcinoma.
Applications
IHC-P
Positive Control
HeLa cells. Human prostate or lung tissue (IHC).
Dilutions
IHC: 1-2 µg/ml
Reactivity
Human
Immunogen
Recombinant fragment (around Amino Acids 1-200) of human TP63 protein. The exact sequence is proprietary.
Host
Rabbit
Clonality
Monoclonal
Clone ID
P40/8225R
Isotype
IgG
Light Chains
kappa
Conjugate
Unconjugated
Purification
Protein A chromatography.
Concentration
200 µg/ml
Molecular Weight
40 kDa
Product Form
Liquid
Formulation
Supplied in 10mM Phosphate Buffered Saline with 0.05% BSA and 0.05% Sodium Azide.
Storage
Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Synonyms
Chronic ulcerative stomatitis protein, CUSP, Keratinocyte transcription factor KET, KET, p40, p51, P73H, P73L, TP63, TP73L, Transformation-related protein 63, Tumor protein 63, Tumor protein p73-like