The antibody recognizes a 53 kDa phosphoprotein, identified as p53 suppressor gene product. It reacts with the mutant as well as wild type p53.1 Positive nuclear staining with this antibody has been shown to be a factor in breast carcinoma, lung carcinoma, colorectal carcinoma, urothelial carcinoma, and ependymoma.2-8 Anti-p53 positivity has also been used to differentiate uterine serous carcinoma from endometrioid carcinoma, as well as a marker for intratubular germ cell neoplasia.
Antibody Isotype:
IgG2b-k
Monosan Range:
MONOSAN Ready To Use
Clone:
DO7
Concentration:
n/a
Storage buffer:
Tris Buffer, pH 7.3-7.7, containing 1% BSA and <0.1% Sodium Azide
Storage:
2-8°C
References 1:
Mauri FA et al. Int J Oncol 1999 Dec;15(6):1137-47
References 2:
Caffo O et al. Clin Cancer Res 1996 Sep;2(9):1591-9
References 3:
Bebenek M et al. Anticancer Res 1998 Jan-Feb;18(1B):619-23
References 4:
Midulla C et al. Anticancer Res 1999 Sep-Oct;19(5B):4033-7
References 5:
Moore BE et al. App.IHC and Mol. Morphol. 2001;9(3): 203 206
Bp53-12 reacts with an N-terminal epitope (aa 16-25) of both wild-type and mutated p53. This epitope is revealed in tissue sections only after formalin fixation. Mutation and/or allelic loss of p53 is one of the causes of a variety of mesenchymal and epithelial tumors. p53 Localizes in the nucleus, but is detectable at the plasma membrane during mitosis and when certain mutations modulate cytoplasmic/nuclear distribution.
Antibody Isotype:
IgG2a-A
Monosan Range:
MONOSAN
Clone:
Bp53-12
Concentration:
100 ug/ml
Storage buffer:
PBS with 0.02% sodium azide
Storage:
2-8°C
References 1:
Bártek J. et al, J Pathol. 169(1):27-34 (1993)
References 2:
Vogelstein and Kinzler, Cell 70: 523-526, (1992)
References 3:
Hollstein et al, Science 253: 49-53: (1991)
References 4:
Lane, D.P, Nature 358: 15-16: (1992)
References 5:
Donehower et al, Biochemic. Biophys. Acta 1155: 181-182, (1993)
This monoclonal antibody recognizes both wild type and mutant forms of human p53 protein under denaturing and non-denaturing conditions. The epitope recognized by clone DO-7 can be destroyed by prolonged fixation in buffered formalin. The heat induced epitope retrieval technique may improve staining in some cases.
Antibody Isotype:
IgG2b
Monosan Range:
MONXtra
Clone:
DO-7
Concentration:
Greater than or equal to 22 mg/L
Storage buffer:
Tissue culture supernatant with sodium azide
Storage:
2-8°C
References 1:
Tiniakos DG et al. Cytopathology. 1996; 7(3): 178186
References 2:
Yoshida T et al. Journal of Pathology. 2003; 199(2):166175
References 3:
Burns ASYW et al. British Journal of Cancer. 2002; 86(7):11171123
References 4:
Tweddle DA et al. American Journal of Pathology. 2001; 158(6): 20672077
References 5:
Fernando SS et al. International Journal of Surgical Pathology. 2000; 8(3):213222
The gene coding for p53 oncoprotein is located on chromosome 17p. Allele loss at this chromosome site has frequently been seen in many tumours including lung, colon, breast and brain. Expression of p53 oncoprotein was not detected in normal mucosa, whereas mutation results in a detectable expression of the p53 protein. It is therefore suggested that immunocytochemical detection of p53 protein is an indication for malignancy. Positive control: Breast carcinoma.
PAb 122 binds to the C-terminus (aa370-378) of both wild type and mutated p53. When microinjected into nuclei, PAb 122 blocked re-entry into the S-phase of the cell cycle. Mutation and/or allelic loss of p53 is one of the causes of a variety of mesenchymal and epithelial tumors. p53 Localizes in the nucleus, but is detectable at the plasma membrane during mitosis and when certain mutations modulate cytoplasmic/nuclear distribution.
The tumour suppressor protein p53 is a key element of intracellular anticancer protection. It mediates cell cycle arrest or apoptosis in response to DNA damage or to starvation for pyrimidine nukleotides. It is up-regulated in response to these stress signals and stimulated to activate transcription of specific genes, resulting in expression of p21waf1 and other proteins involved in G1 or G2/M arrest, or proteins that trigger apoptosis, such as Bcl-2. The structure of p53 comprises N-terminal transactivation domain, central DNA-binding domain, oligomerisation domain, and C-terminal regulatory domain. There are various phosphorylation sites on p53, of which the phosphorylation at Ser15 is important for p53 activation and stabilization.
Antibody Isotype:
IgG2a
Monosan Range:
MONOSAN
Clone:
BP53-12
Concentration:
1 mg/ml
Storage buffer:
Phosphate buffered saline (PBS) solution with 15 mM sodium azide
Storage:
2-8°C
Cookies:
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