Polyclonal Antibody to p53 (Ab-37) (Discontinued)

Product code: 35-1442

Clonality : Polyclonal
Application : WB
Reactivity : Human

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Format : Purified
Amount : 100 µg
Isotype : Rabbit IgG
Content : Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
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.
Gene : TP53
Gene ID : 7157
Uniprot ID : P04637
Alternative Name : Tumor suppressor p53, Phosphoprotein p53, Antigen NY-CO-13, TP53
Immunogen Information : Peptide sequence around aa.35~39 (L-P-S-Q-A) derived from Human p53.

p53 is a nuclear protein which plays an essential role in the regulation of cell cycle specifically in the transition from G0 to G1. It is found in very low levels in normal cells however in a variety of transformed cell lines in high amounts and believed to contribute to transformation and malignancy. The open reading frame of p53 is 393 amino acids long, with the central region (consisting of amino acids from about 100 to 300) containing the DNA-binding domain. This proteolysis-resistant core is flanked by a C-terminal end mediating oligomerization and an N-terminal end containing a strong transcription activation signal. p53 binds as a tetramer to a PBS (p53-Binding Site) and activates the expression of downstream genes that inhibit growth and/or invasion. p53 binds as a tetramer to a p53-binding site (PBS) and to activate the expression of adjacent genes that inhibit growth and/or invasion. Deletion of one or both p53 alleles reduces the expression of tetramers, resulting in decreased expression of the growth inhibitory genes Ito, A. et al. (2001) EMBO J. 20, 1331-1340. Sakaguchi, K. et al. (1998) Genes Dev. 12, 2831-2841. Solomon, J.M. et al. (2006) Mol. Cell. Biol. 26, 28-38.

Predicted MW: 53kd, Western blotting: 1:500~1:1000

For Research Use Only. Not for use in diagnostic/therapeutics procedures.

Subcellular location: Cytoplasm
Post transnational modification: Sumoylated with SUMO1. Sumoylated at Lys-386 by UBC9.
Tissue Specificity: Ubiquitous. Isoforms are expressed in a wide range of normal tissues but in a tissue-dependent manner. Isoform 2 is expressed in most normal tissues but is not detected in brain, lung, prostate, muscle, fetal brain, spinal cord and fetal liver. Isoform 3 is expressed in most normal tissues but is not detected in lung, spleen, testis, fetal brain, spinal cord and fetal liver. Isoform 7 is expressed in most normal tissues but is not detected in prostate, uterus, skeletal muscle and breast. Isoform 8 is detected only in colon, bone marrow, testis, fetal brain and intestine. Isoform 9 is expressed in most normal tissues but is not detected in brain, heart, lung, fetal liver, salivary gland, breast or intestine.
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