Protein Name
Cellular tumor antigen p53
UniProt ID
Ensembl Gene ID
NCBI Gene ID
Molecular Weight
43458
Protein Length
390
Protein Domain
3D Structure
(PDB ID : 1hu8)
Target by Small Molecules
Protein-protein Interaction Database
Gene Expression
Drugs and Diseases
Enzyme Class
-
Catalytic Site
Localization
Cytoplasm,Nucleus,Nucleus,PML body,Endoplasmic reticulum,Mitochondrion matrix;
Function
Acts as a tumor suppressor in many tumor types; induces growth arrest or apoptosis depending on the physiological circumstances and cell type. Involved in cell cycle regulation as a trans-activator that acts to negatively regulate cell division by controlling a set of genes required for this process. One of the activated genes is an inhibitor of cyclin-dependent kinases. Apoptosis induction seems to be mediated either by stimulation of BAX and FAS antigen expression, or by repression of Bcl-2 expression. In cooperation with mitochondrial PPIF is involved in activating oxidative stress-induced necrosis; the function is largely independent of transcription. Prevents CDK7 kinase activity when associated to CAK complex in response to DNA damage, thus stopping cell cycle progression (By similarity). Induces the transcription of long intergenic non-coding RNA p21 (lincRNA-p21) and lincRNA-Mkln1. LincRNA-p21 participates in TP53-dependent transcriptional repression leading to apoptosis, but seems to have to effect on cell-cycle regulation. Regulates the circadian clock by repressing CLOCK-ARNTL/BMAL1-mediated transcriptional activation of PER2 (PubMed:24051492).
Gene Ontology
GO:0000785; GO:0005737; GO:0005829; GO:0005783; GO:0005759; GO:0005739; GO:0000790; GO:0016363; GO:0005730; GO:0005654; GO:0005634; GO:0016605; GO:0032991; GO:0005657; GO:0035861; GO:0005667; GO:0005524; GO:0051087; GO:0003682; GO:0005507; GO:0001046; GO:0097718; GO:0003677; GO:0001228; GO:0003700; GO:0000981; GO:0019899; GO:0035035; GO:0042826; GO:0035033; GO:0042802; GO:0097371; GO:0003730; GO:0002039; GO:1990841; GO:0002020; GO:0008022; GO:0046982; GO:0019901; GO:0047485; GO:0051721; GO:0019903; GO:0043621; GO:0030971; GO:0000980; GO:0000978; GO:0000977; GO:0001085; GO:0043565; GO:0001094; GO:0001221; GO:0008134; GO:0044212; GO:0031625; GO:0006915; GO:0006914; GO:0002326; GO:0060411; GO:0007569; GO:0007050; GO:0034613; GO:0072717; GO:0006974; GO:0071480; GO:0042149; GO:0071479; GO:0034614; GO:0034644; GO:0071494; GO:0007417; GO:0021549; GO:0031497; GO:0051276; GO:0048512; GO:0007623; GO:0008340; GO:0030330; GO:0006977; GO:0006978; GO:0000733; GO:0006302; GO:0009792; GO:0048568; GO:0043153; GO:0006983; GO:0007369; GO:0007507; GO:0001701; GO:0060333; GO:0072332; GO:0042771; GO:0070059; GO:1990144; GO:0043504; GO:0071850; GO:0031571; GO:0009299; GO:0007275; GO:0035264; GO:0070266; GO:0043066; GO:0030308; GO:0008285; GO:2000279; GO:0008156; GO:0048147; GO:0010629; GO:1904024; GO:1901525; GO:0045930; GO:0007406; GO:1903799; GO:0045861; GO:2000378; GO:0048662; GO:0051974; GO:0000122; GO:0045892; GO:0030512; GO:0051402; GO:0006289; GO:0097252; GO:0090403; GO:0043065; GO:0010666; GO:0090343; GO:0045787; GO:0071158; GO:1900119; GO:0010628; GO:0031065; GO:2001244; GO:0002687; GO:0035794; GO:0043525; GO:0050731; GO:1902895; GO:1903800; GO:0062100; GO:0032461; GO:2000379; GO:0090200; GO:0045899; GO:0070245; GO:0045944; GO:1990440; GO:0061419; GO:0036003; GO:0045893; GO:0051289; GO:0008104; GO:0050821; GO:0065003; GO:0042981; GO:0051726; GO:0042127; GO:2000772; GO:0043516; GO:2000269; GO:0072363; GO:1903205; GO:0051453; GO:1902253; GO:1902108; GO:0043523; GO:0070243; GO:0034103; GO:0006357; GO:0006355; GO:0001836; GO:0090399; GO:0042493; GO:0010332; GO:0002931; GO:0006979; GO:0009651; GO:0009411; GO:0010165; GO:0051123; GO:0009303; GO:0072331; GO:0001756; GO:0033077; GO:0002360; GO:0002309; GO:0007179; GO:0016032