{"product_id":"p53-his-tag-protein-human-ua085067","title":"P53 His Tag Protein, Human","description":"\u003ch4\u003eProduct Specification\u003c\/h4\u003e\u003cdiv class=\"responsive-table product-detail-table details-table\"\u003e\n\u003cbr\u003e\u003ctable style=\"width: 100%; height: auto;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eSpecies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHuman\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eSynonyms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eTP53, P53, Phosphoprotein p53, Tumor suppressor p53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eAccession\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eP04637\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eAmino Acid Sequence\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003eS94-T312 with His Tag at the N-Terminus\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eExpression System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eE.coli\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eMolecular Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e25-35kDa (Reducing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003ePurity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e＞95% by SDS-PAGE,\u0026gt;90% by HPLC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eConjugation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eUnconjugated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eTag\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHis Tag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003ePhysical Appearance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eLiquid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eStorage Buffer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003e50mM Tris, 150mM NaCl, pH7.5, 1mM DTT, 10%Glycerol\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eStability \u0026amp; Storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003eStable for 12 months upon stored at -80℃ from the date of receipt. And avoid repeated freeze-thaws cycles.\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eReference\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003e1. Boutelle, A.M., \u0026amp; Attardi, L.D. (2021). p53 and Tumor Suppression: It Takes a Network. Trends in Cell Biology, 31(4), 298-310.\u003cbr\u003e2. Tornesello, M.L. (2025). TP53 mutations in cancer: Molecular features and therapeutic opportunities. International Journal of Molecular Medicine, 55(1), 5.\u003cbr\u003e3. Lane, D.P. (1992). Cancer. p53, guardian of the genome. Nature, 358(6381), 15-16.\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\u003ch4\u003eBackground\u003c\/h4\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eP53, widely known as the “guardian of the genome,” is a critical tumor suppressor protein encoded by the TP53 gene. It functions as a sequence-specific transcription factor that is activated in response to various cellular stress signals, including DNA damage, oxidative stress, and oncogene activation. The full-length P53 protein consists of 393 amino acids and comprises several functional domains. The N-terminal region contains the transactivation domain (TAD) and the MDM2 binding site, which are central to the regulation of P53 activity. The central DNA-binding domain (DBD) is the core region through which P53 exerts its transcription factor function, and mutations in this domain are associated with over 85% of TP53-mutant cancers. The C-terminal region contains the tetramerization domain (TET) and nuclear localization signals (NLS), ensuring proper assembly and nuclear import of the P53 protein.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnder normal conditions, P53 activity is tightly kept at low levels by its negative regulator MDM2. Upon cellular stress, such as DNA damage or oncogene activation, the P53 protein becomes stabilized and activated. It binds to specific DNA sequences in the promoter regions of its downstream target genes, regulating the expression of hundreds of genes, ultimately leading to cell cycle arrest, DNA repair, or apoptosis. Additionally, P53 is involved in regulating cellular metabolism, autophagy, and immune responses.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"UA BIOSCIENCE","offers":[{"title":"10μg","offer_id":43095681695819,"sku":"UA085067-10μg","price":360.0,"currency_code":"USD","in_stock":true},{"title":"50μg","offer_id":43095681728587,"sku":"UA085067-50μg","price":1435.0,"currency_code":"USD","in_stock":true},{"title":"100μg","offer_id":43095681761355,"sku":"UA085067-100μg","price":2240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/8375\/1499\/files\/f6f5fa06cadf4cd9b8ec57c0eb0c391c.png?v=1788220841","url":"https:\/\/www.antbioinc.com\/products\/p53-his-tag-protein-human-ua085067","provider":"AntBio","version":"1.0","type":"link"}