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  • SRP2107 - p53 (1-81), wild type, GST tagged human

SRP2107 Sigma-Aldrich

p53 (1-81), wild type, GST tagged human

recombinant, expressed in E. coli, ≥80% (SDS-PAGE)

Synonym: FLJ92943, LFS1, P53, TRP53

  •  NACRES NA.26



Related Categories Cell Biology, Cell Signaling and Neuroscience, Gene Regulation and Expression, Transcription Factors
biological source   human
recombinant   expressed in E. coli
assay   ≥80% (SDS-PAGE)
form   frozen liquid
mol wt   ~34.6 kDa
packaging   pkg of 10 μg
concentration   400 μg/mL
application(s)   western blot: suitable
color   clear colorless
NCBI accession no.   NM_000546
UniProt accession no.   P04637
shipped in   dry ice
storage temp.   −70°C
Gene Information   human ... TP53(7157)


General description

p53 is a tumor suppressor gene expressed in a wide variety of tissues. It is a tetrameric nuclear DNA-binding phosphoprotein. The gene encoding it is localized on human chromosome 17p13.1.

Biochem/physiol Actions

Tumor suppressor p53 has the capability to induce cell cycle arrest and has a role in DNA repair, senescence and apoptosis. It binds to Simian vacuolating virus 40 (SV40) T-antigen and human papilloma virus E6 protein. The p53 gene is mutated in various cancers, such as of the breast, ovarian, bladder, colon and lung.

p53 was identified as a tumor suppressor by showing that this protein has the ability to block transformation and to inhibit tumor cell growth. In addition, p53 is a transcription factor capable of regulating the expression of a subset of downstream genes. Mutation of two specific N-terminal residues in p53 (residues Leu22 and Trp23) impairs the ability of p53 to transactivate and has been correlated with its ability to bind TAFII40 and TAFII60 (or TAFII31 and TAFII70) suggesting that one or both of these interactions is important for activation. Mutation of residues 22 and 23 to Ala does not affect binding to TBP, although mutation of these residues to charged amino acids has been reported to disrupt the p53-TBP interaction. Different mutations in p53 gene have been characterized in a variety of human cancers. Loss or mutation of p53 function is highly correlated with tumorigenesis.

Physical form

Clear and colorless frozen liquid solution

Preparation Note

Use a manual defrost freezer and avoid repeated freeze-thaw cycles. While working, please keep sample on ice.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles


Oncogenes and Tumor Suppressors Reprogram Metabolism

Proliferating cells require the biosynthesis of structural components for biomass production and for genomic replication. This requires a reprogramming of the metabolic pathways to ensure nutrients s...
BioFiles v7 n4
Keywords: Aerobic, Antitumor agents, Apoptosis, Cancer, Citric Acid Cycle, Degradations, Environmental, Gene expression, Glycolysis, Growth factors, Metabolic Pathways, Metabolism, Metabolites, Nucleotide Synthesis, Pentose phosphate pathway, Phosphorylations

Peer-Reviewed Papers


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