Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Cellular tumor antigen p53

Gene

TP53

Organism
Canis lupus familiaris (Dog) (Canis familiaris)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at transcript leveli

Functioni

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. 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 and seem to have to effect on cell-cycle regulation. Regulates the circadian clock by repressing CLOCK-ARNTL/BMAL1-mediated transcriptional activation of PER2.By similarity

Cofactori

Zn2+By similarityNote: Binds 1 zinc ion per subunit.By similarity

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi163 – 1631ZincBy similarity
Metal bindingi166 – 1661ZincBy similarity
Metal bindingi226 – 2261ZincBy similarity
Metal bindingi230 – 2301ZincBy similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
DNA bindingi89 – 280192By similarityAdd
BLAST

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Activator, Repressor

Keywords - Biological processi

Apoptosis, Biological rhythms, Cell cycle, Necrosis, Transcription, Transcription regulation

Keywords - Ligandi

DNA-binding, Metal-binding, Zinc

Names & Taxonomyi

Protein namesi
Recommended name:
Cellular tumor antigen p53
Alternative name(s):
Tumor suppressor p53
Gene namesi
Name:TP53
Synonyms:P53
OrganismiCanis lupus familiaris (Dog) (Canis familiaris)
Taxonomic identifieri9615 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCarnivoraCaniformiaCanidaeCanis
Proteomesi
  • UP000002254 Componenti: Unplaced

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Endoplasmic reticulum, Mitochondrion, Nucleus

Pathology & Biotechi

Involvement in diseasei

p53 is found in increased amounts in a wide variety of transformed cells. p53 is frequently mutated or inactivated in many types of cancer.

Keywords - Diseasei

Tumor suppressor

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 381381Cellular tumor antigen p53PRO_0000185695Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei15 – 151Phosphoserine; by CDK5, PRPK, AMPK, NUAK1 and ATMBy similarity
Modified residuei18 – 181Phosphothreonine; by CK1, VRK1 and VRK2By similarity
Modified residuei20 – 201Phosphoserine; by CHEK2, CK1 and PLK3By similarity
Modified residuei33 – 331Phosphoserine; by CDK5 and CDK7By similarity
Modified residuei107 – 1071N6-acetyllysine; by KAT6ABy similarity
Modified residuei170 – 1701Phosphoserine; by AURKBBy similarity
Modified residuei257 – 2571Phosphoserine; by AURKBBy similarity
Modified residuei272 – 2721Phosphothreonine; by AURKBBy similarity
Cross-linki279 – 279Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)By similarity
Cross-linki280 – 280Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)By similarity
Modified residuei293 – 2931N6-acetyllysineBy similarity
Modified residuei303 – 3031Phosphoserine; by AURKA, CDK1 and CDK2By similarity
Modified residuei309 – 3091N6-acetyllysineBy similarity
Modified residuei358 – 3581N6,N6-dimethyllysine; alternateBy similarity
Modified residuei358 – 3581N6-methyllysine; by SMYD2; alternateBy similarity
Modified residuei360 – 3601N6-methyllysine; by SETD7By similarity
Modified residuei361 – 3611N6,N6-dimethyllysine; by EHMT1 and EHMT2; alternateBy similarity
Modified residuei361 – 3611N6-acetyllysine; alternateBy similarity
Modified residuei369 – 3691N6-acetyllysineBy similarity
Modified residuei370 – 3701N6,N6-dimethyllysine; alternateBy similarity
Modified residuei370 – 3701N6-acetyllysine; by KAT6A; alternateBy similarity
Modified residuei370 – 3701N6-methyllysine; by KMT5A; alternateBy similarity
Cross-linki374 – 374Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO)By similarity
Modified residuei380 – 3801Phosphoserine; by CK2, CDK2 and NUAK1By similarity

Post-translational modificationi

Phosphorylation on Ser residues mediates transcriptional activation. Phosphorylated on Thr-18 by VRK1, which may prevent the interaction with MDM2. Phosphorylated on Ser-20 by CHEK2 in response to DNA damage, which prevents ubiquitination by MDM2. Phosphorylated on Ser-20 by PLK3 in response to reactive oxygen species (ROS), promoting p53/TP53-mediated apoptosis. Phosphorylated on Ser-33 by CDK7 in a CAK complex in response to DNA damage. Phosphorylated by HIPK1. Phosphorylated on Ser-15 upon ultraviolet irradiation; which is enhanced by interaction with BANP. Stabilized by CDK5-mediated phosphorylation in response to genotoxic and oxidative stresses at Ser-15 and Ser-33, leading to accumulation of p53/TP53, particularly in the nucleus, thus inducing the transactivation of p53/TP53 target genes. Phosphorylated at Ser-303 and Ser-380 by CDK2 in response to DNA-damage. Phosphorylated on Ser-380 following UV but not gamma irradiation (By similarity).By similarity
Acetylated. Its deacetylation by SIRT1 impairs its ability to induce proapoptotic program and modulate cell senescence. Deacetylation by SIRT2 impairs its ability to induce transcription activation in a AKT-dependent manner (By similarity).By similarity
Ubiquitinated by MDM2 and SYVN1, which leads to proteasomal degradation. Ubiquitinated by RFWD3, which works in cooperation with MDM2 and may catalyze the formation of short polyubiquitin chains on p53/TP53 that are not targeted to the proteasome. Ubiquitinated by MKRN1 at Lys-279 and Lys-280, which leads to proteasomal degradation. Deubiquitinated by USP10, leading to stabilize it. Ubiquitinated by TRIM24, RFFL and RNF34, which leads to proteasomal degradation. Ubiquitination by TOPORS induces degradation. Deubiquitination by USP7, leading to stabilize it. Ubiquitinated by RFWD2, which leads to proteasomal degradation. Ubiquitination and subsequent proteasomal degradation is negatively regulated by CCAR2 (By similarity).By similarity
Monomethylated at Lys-360 by SETD7, leading to stabilization and increased transcriptional activation. Monomethylated at Lys-358 by SMYD2, leading to decreased DNA-binding activity and subsequent transcriptional regulation activity. Lys-360 monomethylation prevents interaction with SMYD2 and subsequent monomethylation at Lys-358. Dimethylated at Lys-361 by EHMT1 and EHMT2. Monomethylated at Lys-370 by KMT5A, promoting interaction with L3MBTL1 and leading to repress transcriptional activity. Demethylation of dimethylated Lys-358 by KDM1A prevents interaction with TP53BP1 and represses TP53-mediated transcriptional activation (By similarity).By similarity
Sumoylated with SUMO1. Sumoylated at Lys-374 by UBC9 (By similarity).By similarity

Keywords - PTMi

Acetylation, Isopeptide bond, Methylation, Phosphoprotein, Ubl conjugation

Proteomic databases

PaxDbiQ29537.

Interactioni

Subunit structurei

Binds DNA as a homotetramer. Found in a complex with CABLES1 and TP73. Interacts with histone acetyltransferases EP300 and methyltransferases HRMT1L2 and CARM1, and recruits them to promoters. The C-terminus interacts with TAF1, when TAF1 is part of the TFIID complex. Interacts with HIPK1, HIPK2, AXIN1, and TP53INP1. Part of a complex consisting of TP53, HIPK2 and AXIN1. Interacts with WWOX. Interacts with USP7 and SYVN1. Interacts with HSP90AB1. Interacts with ARMD10, BANP, CDKN2AIP, NUAK1, STK11/LKB1, UHRF2 and E4F1. Interacts with CHD8, leading to recruit histone H1 and prevent transactivation activity. Interacts with YWHAZ; the interaction enhances TP53 transcriptional activity. Phosphorylation of YWHAZ on 'Ser-58' inhibits this interaction. Directly interacts with FBXO42; leading to ubiquitination and degradation of TP53. Interacts with AURKA, DAXX, BRD7 and TRIM24. Interacts (when monomethylated at Lys-370) with L3MBTL1. Interacts with GRK5. Binds to the CAK complex (CDK7, cyclin H and MAT1) in response to DNA damage. Interacts with CDK5 in neurons. Interacts with AURKB, SETD2, UHRF2 and NOC2L. Interacts (via N-terminus) with PTK2/FAK1; this promotes ubiquitination by MDM2. Interacts with PTK2B/PYK2; this promotes ubiquitination by MDM2. Interacts with PRKCG. Interacts with PPIF; the association implicates preferentially tetrameric TP53, is induced by oxidative stress and is impaired by cyclosporin A (CsA). Interacts with SNAI1; the interaction induces SNAI1 degradation via MDM2-mediated ubiquitination and inhibits SNAI1-induced cell invasion. Interacts with KAT6A. Interacts with UBC9. Forms a complex with UBC9 and PRKRA. Interacts with ZNF385B; the interaction is direct. Interacts (via DNA-binding domain) with ZNF385A; the interaction is direct and enhances p53/TP53 transactivation functions on cell-cycle arrest target genes, resulting in growth arrest. Interacts with ANKRD2. Interacts with RFFL and RNF34; involved in p53/TP53 ubiquitination. Interacts with MTA1 and RFWD2. Interacts with CCAR2 (via N-terminus). Interacts with MORC3.By similarity

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sitei107 – 1071Interaction with DNABy similarity

GO - Molecular functioni

Protein-protein interaction databases

STRINGi9615.ENSCAFP00000024579.

Structurei

3D structure databases

ProteinModelPortaliQ29537.
SMRiQ29537. Positions 81-283, 307-348.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 308308Interaction with CCAR2By similarityAdd
BLAST
Regioni1 – 4444Transcription activation (acidic)Add
BLAST
Regioni63 – 9735Interaction with WWOXBy similarityAdd
BLAST
Regioni87 – 358272Interaction with HIPK1By similarityAdd
BLAST
Regioni87 – 288202Required for interaction with ZNF385ABy similarityAdd
BLAST
Regioni100 – 224125Required for interaction with FBXO42By similarityAdd
BLAST
Regioni103 – 280178Interaction with AXIN1By similarityAdd
BLAST
Regioni244 – 28239Interaction with E4F1By similarityAdd
BLAST
Regioni261 – 2688Interaction with DNABy similarity
Regioni307 – 34842Interaction with HIPK2By similarityAdd
BLAST
Regioni313 – 34432OligomerizationAdd
BLAST
Regioni347 – 3515Interaction with USP7By similarity
Regioni356 – 37520Basic (repression of DNA-binding)Add
BLAST

Motif

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Motifi293 – 30917Bipartite nuclear localization signalBy similarityAdd
BLAST
Motifi327 – 33812Nuclear export signalBy similarityAdd
BLAST
Motifi358 – 3603[KR]-[STA]-K motif

Domaini

The [KR]-[STA]-K motif is specifically recognized by the SETD7 methyltransferase.By similarity

Sequence similaritiesi

Belongs to the p53 family.Curated

Phylogenomic databases

eggNOGiENOG410IITK. Eukaryota.
ENOG410ZSWV. LUCA.
HOGENOMiHOG000039957.
HOVERGENiHBG005201.
InParanoidiQ29537.
KOiK04451.

Family and domain databases

CDDicd08367. P53. 1 hit.
Gene3Di2.60.40.720. 1 hit.
4.10.170.10. 1 hit.
InterProiIPR008967. p53-like_TF_DNA-bd.
IPR012346. p53/RUNT-type_TF_DNA-bd.
IPR011615. p53_DNA-bd.
IPR010991. p53_tetrameristn.
IPR013872. p53_transactivation_domain.
IPR002117. p53_tumour_suppressor.
[Graphical view]
PANTHERiPTHR11447. PTHR11447. 1 hit.
PfamiPF00870. P53. 1 hit.
PF08563. P53_TAD. 1 hit.
PF07710. P53_tetramer. 1 hit.
[Graphical view]
PRINTSiPR00386. P53SUPPRESSR.
SUPFAMiSSF47719. SSF47719. 1 hit.
SSF49417. SSF49417. 1 hit.
PROSITEiPS00348. P53. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q29537-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MEESQSELNI DPPLSQETFS ELWNLLPENN VLSSELCPAV DELLLPESVV
60 70 80 90 100
NWLDEDSDDA PRMPATSAPT APGPAPSWPL SSSVPSPKTY PGTYGFRLGF
110 120 130 140 150
LHSGTAKSVT WTYSPLLNKL FCQLAKTCPV QLWVSSPPPP NTCVRAMAIY
160 170 180 190 200
KKSEFVTEVV RRCPHHERCS DSSDGLAPPQ HLIRVEGNLR AKYLDDRNTF
210 220 230 240 250
RHSVVVPYEP PEVGSDYTTI HYNYMCNSSC MGGMNRRPIL TIITLEDSSG
260 270 280 290 300
NVLGRNSFEV RVCACPGRDR RTEEENFHKK GEPCPEPPPG STKRALPPST
310 320 330 340 350
SSSPPQKKKP LDGEYFTLQI RGRERYEMFR NLNEALELKD AQSGKEPGGS
360 370 380
RAHSSHLKAK KGQSTSRHKK LMFKREGLDS D
Length:381
Mass (Da):42,486
Last modified:December 15, 1998 - v2
Checksum:i761A718FDC93DA59
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti1 – 44MEES → MQEP (Ref. 2) Curated
Sequence conflicti378 – 3781L → P in BAA78379 (Ref. 2) Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF060514 mRNA. Translation: AAC16909.1.
AB020761 Genomic DNA. Translation: BAA78379.1.
S77819 mRNA. Translation: AAB42022.1.
RefSeqiNP_001003210.1. NM_001003210.1.
UniGeneiCfa.3658.

Genome annotation databases

GeneIDi403869.
KEGGicfa:403869.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF060514 mRNA. Translation: AAC16909.1.
AB020761 Genomic DNA. Translation: BAA78379.1.
S77819 mRNA. Translation: AAB42022.1.
RefSeqiNP_001003210.1. NM_001003210.1.
UniGeneiCfa.3658.

3D structure databases

ProteinModelPortaliQ29537.
SMRiQ29537. Positions 81-283, 307-348.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi9615.ENSCAFP00000024579.

Proteomic databases

PaxDbiQ29537.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi403869.
KEGGicfa:403869.

Organism-specific databases

CTDi7157.

Phylogenomic databases

eggNOGiENOG410IITK. Eukaryota.
ENOG410ZSWV. LUCA.
HOGENOMiHOG000039957.
HOVERGENiHBG005201.
InParanoidiQ29537.
KOiK04451.

Family and domain databases

CDDicd08367. P53. 1 hit.
Gene3Di2.60.40.720. 1 hit.
4.10.170.10. 1 hit.
InterProiIPR008967. p53-like_TF_DNA-bd.
IPR012346. p53/RUNT-type_TF_DNA-bd.
IPR011615. p53_DNA-bd.
IPR010991. p53_tetrameristn.
IPR013872. p53_transactivation_domain.
IPR002117. p53_tumour_suppressor.
[Graphical view]
PANTHERiPTHR11447. PTHR11447. 1 hit.
PfamiPF00870. P53. 1 hit.
PF08563. P53_TAD. 1 hit.
PF07710. P53_tetramer. 1 hit.
[Graphical view]
PRINTSiPR00386. P53SUPPRESSR.
SUPFAMiSSF47719. SSF47719. 1 hit.
SSF49417. SSF49417. 1 hit.
PROSITEiPS00348. P53. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiP53_CANLF
AccessioniPrimary (citable) accession number: Q29537
Secondary accession number(s): Q9TV78
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: December 15, 1998
Last modified: September 7, 2016
This is version 159 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.