Phosphorylation of TP53 (p53) at the N-terminal serine residues S15 and S20 plays a critical role in protein stabilization as phosphorylation at these sites interferes with binding of the ubiquitin ligase MDM2 to TP53. Several different kinases can phosphorylate TP53 at S15 and S20. In response to double strand DNA breaks, S15 is phosphorylated by ATM (Banin et al. 1998, Canman et al. 1998, Khanna et al. 1998), and S20 by CHEK2 (Chehab et al. 1999, Chehab et al. 2000, Hirao et al. 2000). DNA damage or other types of genotoxic stress, such as stalled replication forks, can trigger ATR-mediated phosphorylation of TP53 at S15 (Lakin et al. 1999, Tibbetts et al. 1999) and CHEK1-mediated phosphorylation of TP53 at S20 (Shieh et al. 2000). In response to various types of cell stress, NUAK1 (Hou et al. 2011), CDK5 (Zhang et al. 2002, Lee et al. 2007, Lee et al. 2008), AMPK (Jones et al. 2005) and TP53RK (Abe et al. 2001, Facchin et al. 2003) can phosphorylate TP53 at S15, while PLK3 (Xie, Wang et al. 2001, Xie, Wu et al. 2001) can phosphorylate TP53 at S20.
Phosphorylation of TP53 at serine residue S46 promotes transcription of TP53-regulated apoptotic genes rather than cell cycle arrest genes. Several kinases can phosphorylate S46 of TP53, including ATM-activated DYRK2, which, like TP53, is targeted for degradation by MDM2 (Taira et al. 2007, Taira et al. 2010). TP53 is also phosphorylated at S46 by HIPK2 in the presence of the TP53 transcriptional target TP53INP1 (D'Orazi et al. 2002, Hofmann et al. 2002, Tomasini et al. 2003). CDK5, in addition to phosphorylating TP53 at S15, also phosphorylates it at S33 and S46, which promotes neuronal cell death (Lee et al. 2007).<p>MAPKAPK5 (PRAK) phosphorylates TP53 at serine residue S37, promoting cell cycle arrest and cellular senescence in response to oncogenic RAS signaling (Sun et al. 2007).<p>NUAK1 phosphorylates TP53 at S15 and S392, and phosphorylation at S392 may contribute to TP53-mediated transcriptional activation of cell cycle arrest genes (Hou et al. 2011). S392 of TP53 is also phosphorylated by the complex of casein kinase II (CK2) bound to the FACT complex, enhancing transcriptional activity of TP53 in response to UV irradiation (Keller et al. 2001, Keller and Lu 2002).<p>The activity of TP53 is inhibited by phosphorylation at serine residue S315, which enhances MDM2 binding and degradation of TP53. S315 of TP53 is phosphorylated by Aurora kinase A (AURKA) (Katayama et al. 2004) and CDK2 (Luciani et al. 2000). Interaction with MDM2 and the consequent TP53 degradation is also increased by phosphorylation of TP53 threonine residue T55 by the transcription initiation factor complex TFIID (Li et al. 2004).<p>Aurora kinase B (AURKB) has been shown to phosphorylate TP53 at serine residue S269 and threonine residue T284, which is possibly facilitated by the binding of the NIR co-repressor. AURKB-mediated phosphorylation was reported to inhibit TP53 transcriptional activity through an unknown mechanism (Wu et al. 2011). A putative direct interaction between TP53 and AURKB has also been described and linked to TP53 phosphorylation and S183, T211 and S215 and TP53 degradation (Gully et al. 2012).
View original pathway at:Reactome.</div>
Lee JH, Jeong MW, Kim W, Choi YH, Kim KT.; ''Cooperative roles of c-Abl and Cdk5 in regulation of p53 in response to oxidative stress.''; PubMedEurope PMCScholia
Bracken AP, Pasini D, Capra M, Prosperini E, Colli E, Helin K.; ''EZH2 is downstream of the pRB-E2F pathway, essential for proliferation and amplified in cancer.''; PubMedEurope PMCScholia
Nicke B, Bastien J, Khanna SJ, Warne PH, Cowling V, Cook SJ, Peters G, Delpuech O, Schulze A, Berns K, Mullenders J, Beijersbergen RL, Bernards R, Ganesan TS, Downward J, Hancock DC.; ''Involvement of MINK, a Ste20 family kinase, in Ras oncogene-induced growth arrest in human ovarian surface epithelial cells.''; PubMedEurope PMCScholia
Wu L, Ma CA, Zhao Y, Jain A.; ''Aurora B interacts with NIR-p53, leading to p53 phosphorylation in its DNA-binding domain and subsequent functional suppression.''; PubMedEurope PMCScholia
McLaughlin MM, Kumar S, McDonnell PC, Van Horn S, Lee JC, Livi GP, Young PR.; ''Identification of mitogen-activated protein (MAP) kinase-activated protein kinase-3, a novel substrate of CSBP p38 MAP kinase.''; PubMedEurope PMCScholia
White A, Pargellis CA, Studts JM, Werneburg BG, Farmer BT.; ''Molecular basis of MAPK-activated protein kinase 2:p38 assembly.''; PubMedEurope PMCScholia
Leng RP, Lin Y, Ma W, Wu H, Lemmers B, Chung S, Parant JM, Lozano G, Hakem R, Benchimol S.; ''Pirh2, a p53-induced ubiquitin-protein ligase, promotes p53 degradation.''; PubMedEurope PMCScholia
Mahmoudi S, Henriksson S, Corcoran M, Méndez-Vidal C, Wiman KG, Farnebo M.; ''Wrap53, a natural p53 antisense transcript required for p53 induction upon DNA damage.''; PubMedEurope PMCScholia
Bracken AP, Kleine-Kohlbrecher D, Dietrich N, Pasini D, Gargiulo G, Beekman C, Theilgaard-Mönch K, Minucci S, Porse BT, Marine JC, Hansen KH, Helin K.; ''The Polycomb group proteins bind throughout the INK4A-ARF locus and are disassociated in senescent cells.''; PubMedEurope PMCScholia
Patrick GN, Zukerberg L, Nikolic M, de la Monte S, Dikkes P, Tsai LH.; ''Conversion of p35 to p25 deregulates Cdk5 activity and promotes neurodegeneration.''; PubMedEurope PMCScholia
Parisi T, Pollice A, Di Cristofano A, Calabrò V, La Mantia G.; ''Transcriptional regulation of the human tumor suppressor p14(ARF) by E2F1, E2F2, E2F3, and Sp1-like factors.''; PubMedEurope PMCScholia
Taira N, Yamamoto H, Yamaguchi T, Miki Y, Yoshida K.; ''ATM augments nuclear stabilization of DYRK2 by inhibiting MDM2 in the apoptotic response to DNA damage.''; PubMedEurope PMCScholia
Hofmann TG, Möller A, Sirma H, Zentgraf H, Taya Y, Dröge W, Will H, Schmitz ML.; ''Regulation of p53 activity by its interaction with homeodomain-interacting protein kinase-2.''; PubMedEurope PMCScholia
Shieh SY, Ahn J, Tamai K, Taya Y, Prives C.; ''The human homologs of checkpoint kinases Chk1 and Cds1 (Chk2) phosphorylate p53 at multiple DNA damage-inducible sites.''; PubMedEurope PMCScholia
Xie S, Wu H, Wang Q, Cogswell JP, Husain I, Conn C, Stambrook P, Jhanwar-Uniyal M, Dai W.; ''Plk3 functionally links DNA damage to cell cycle arrest and apoptosis at least in part via the p53 pathway.''; PubMedEurope PMCScholia
Tibbetts RS, Brumbaugh KM, Williams JM, Sarkaria JN, Cliby WA, Shieh SY, Taya Y, Prives C, Abraham RT.; ''A role for ATR in the DNA damage-induced phosphorylation of p53.''; PubMedEurope PMCScholia
Tomasini R, Samir AA, Carrier A, Isnardon D, Cecchinelli B, Soddu S, Malissen B, Dagorn JC, Iovanna JL, Dusetti NJ.; ''TP53INP1s and homeodomain-interacting protein kinase-2 (HIPK2) are partners in regulating p53 activity.''; PubMedEurope PMCScholia
Katayama H, Sasai K, Kawai H, Yuan ZM, Bondaruk J, Suzuki F, Fujii S, Arlinghaus RB, Czerniak BA, Sen S.; ''Phosphorylation by aurora kinase A induces Mdm2-mediated destabilization and inhibition of p53.''; PubMedEurope PMCScholia
Glover JN, Harrison SC.; ''Crystal structure of the heterodimeric bZIP transcription factor c-Fos-c-Jun bound to DNA.''; PubMedEurope PMCScholia
Li HH, Li AG, Sheppard HM, Liu X.; ''Phosphorylation on Thr-55 by TAF1 mediates degradation of p53: a role for TAF1 in cell G1 progression.''; PubMedEurope PMCScholia
Ichijo H, Nishida E, Irie K, ten Dijke P, Saitoh M, Moriguchi T, Takagi M, Matsumoto K, Miyazono K, Gotoh Y.; ''Induction of apoptosis by ASK1, a mammalian MAPKKK that activates SAPK/JNK and p38 signaling pathways.''; PubMedEurope PMCScholia
Mousson F, Kolkman A, Pijnappel WW, Timmers HT, Heck AJ.; ''Quantitative proteomics reveals regulation of dynamic components within TATA-binding protein (TBP) transcription complexes.''; PubMedEurope PMCScholia
Zeng PY, Berger SL.; ''LKB1 is recruited to the p21/WAF1 promoter by p53 to mediate transcriptional activation.''; PubMedEurope PMCScholia
Voncken JW, Niessen H, Neufeld B, Rennefahrt U, Dahlmans V, Kubben N, Holzer B, Ludwig S, Rapp UR.; ''MAPKAP kinase 3pK phosphorylates and regulates chromatin association of the polycomb group protein Bmi1.''; PubMedEurope PMCScholia
Dornan D, Wertz I, Shimizu H, Arnott D, Frantz GD, Dowd P, O'Rourke K, Koeppen H, Dixit VM.; ''The ubiquitin ligase COP1 is a critical negative regulator of p53.''; PubMedEurope PMCScholia
Sithanandam G, Latif F, Duh FM, Bernal R, Smola U, Li H, Kuzmin I, Wixler V, Geil L, Shrestha S.; ''3pK, a new mitogen-activated protein kinase-activated protein kinase located in the small cell lung cancer tumor suppressor gene region.''; PubMedEurope PMCScholia
Hirao A, Kong YY, Matsuoka S, Wakeham A, Ruland J, Yoshida H, Liu D, Elledge SJ, Mak TW.; ''DNA damage-induced activation of p53 by the checkpoint kinase Chk2.''; PubMedEurope PMCScholia
Kotake Y, Cao R, Viatour P, Sage J, Zhang Y, Xiong Y.; ''pRB family proteins are required for H3K27 trimethylation and Polycomb repression complexes binding to and silencing p16INK4alpha tumor suppressor gene.''; PubMedEurope PMCScholia
Rey C, Soubeyran I, Mahouche I, Pedeboscq S, Bessede A, Ichas F, De Giorgi F, Lartigue L.; ''HIPK1 drives p53 activation to limit colorectal cancer cell growth.''; PubMedEurope PMCScholia
Toledo F, Wahl GM.; ''MDM2 and MDM4: p53 regulators as targets in anticancer therapy.''; PubMedEurope PMCScholia
Gao Z, Zhang J, Bonasio R, Strino F, Sawai A, Parisi F, Kluger Y, Reinberg D.; ''PCGF homologs, CBX proteins, and RYBP define functionally distinct PRC1 family complexes.''; PubMedEurope PMCScholia
New L, Jiang Y, Han J.; ''Regulation of PRAK subcellular location by p38 MAP kinases.''; PubMedEurope PMCScholia
Kondo S, Lu Y, Debbas M, Lin AW, Sarosi I, Itie A, Wakeham A, Tuan J, Saris C, Elliott G, Ma W, Benchimol S, Lowe SW, Mak TW, Thukral SK.; ''Characterization of cells and gene-targeted mice deficient for the p53-binding kinase homeodomain-interacting protein kinase 1 (HIPK1).''; PubMedEurope PMCScholia
Agherbi H, Gaussmann-Wenger A, Verthuy C, Chasson L, Serrano M, Djabali M.; ''Polycomb mediated epigenetic silencing and replication timing at the INK4a/ARF locus during senescence.''; PubMedEurope PMCScholia
Meng W, Swenson LL, Fitzgibbon MJ, Hayakawa K, Ter Haar E, Behrens AE, Fulghum JR, Lippke JA.; ''Structure of mitogen-activated protein kinase-activated protein (MAPKAP) kinase 2 suggests a bifunctional switch that couples kinase activation with nuclear export.''; PubMedEurope PMCScholia
New L, Jiang Y, Zhao M, Liu K, Zhu W, Flood LJ, Kato Y, Parry GC, Han J.; ''PRAK, a novel protein kinase regulated by the p38 MAP kinase.''; PubMedEurope PMCScholia
Agger K, Cloos PA, Rudkjaer L, Williams K, Andersen G, Christensen J, Helin K.; ''The H3K27me3 demethylase JMJD3 contributes to the activation of the INK4A-ARF locus in response to oncogene- and stress-induced senescence.''; PubMedEurope PMCScholia
Moiseeva O, Mallette FA, Mukhopadhyay UK, Moores A, Ferbeyre G.; ''DNA damage signaling and p53-dependent senescence after prolonged beta-interferon stimulation.''; PubMedEurope PMCScholia
Pascreau G, Eckerdt F, Lewellyn AL, Prigent C, Maller JL.; ''Phosphorylation of p53 is regulated by TPX2-Aurora A in xenopus oocytes.''; PubMedEurope PMCScholia
Fleming Y, Armstrong CG, Morrice N, Paterson A, Goedert M, Cohen P.; ''Synergistic activation of stress-activated protein kinase 1/c-Jun N-terminal kinase (SAPK1/JNK) isoforms by mitogen-activated protein kinase kinase 4 (MKK4) and MKK7.''; PubMedEurope PMCScholia
Jeffrey PD, Gorina S, Pavletich NP.; ''Crystal structure of the tetramerization domain of the p53 tumor suppressor at 1.7 angstroms.''; PubMedEurope PMCScholia
Chehab NH, Malikzay A, Stavridi ES, Halazonetis TD.; ''Phosphorylation of Ser-20 mediates stabilization of human p53 in response to DNA damage.''; PubMedEurope PMCScholia
Khanna KK, Keating KE, Kozlov S, Scott S, Gatei M, Hobson K, Taya Y, Gabrielli B, Chan D, Lees-Miller SP, Lavin MF.; ''ATM associates with and phosphorylates p53: mapping the region of interaction.''; PubMedEurope PMCScholia
Takagi M, Absalon MJ, McLure KG, Kastan MB.; ''Regulation of p53 translation and induction after DNA damage by ribosomal protein L26 and nucleolin.''; PubMedEurope PMCScholia
Bitomsky N, Conrad E, Moritz C, Polonio-Vallon T, Sombroek D, Schultheiss K, Glas C, Greiner V, Herbel C, Mantovani F, del Sal G, Peri F, Hofmann TG.; ''Autophosphorylation and Pin1 binding coordinate DNA damage-induced HIPK2 activation and cell death.''; PubMedEurope PMCScholia
Zhang J, Krishnamurthy PK, Johnson GV.; ''Cdk5 phosphorylates p53 and regulates its activity.''; PubMedEurope PMCScholia
Mizukami Y, Yoshioka K, Morimoto S, Yoshida Ki.; ''A novel mechanism of JNK1 activation. Nuclear translocation and activation of JNK1 during ischemia and reperfusion.''; PubMedEurope PMCScholia
Canman CE, Lim DS, Cimprich KA, Taya Y, Tamai K, Sakaguchi K, Appella E, Kastan MB, Siliciano JD.; ''Activation of the ATM kinase by ionizing radiation and phosphorylation of p53.''; PubMedEurope PMCScholia
Frontini M, Soutoglou E, Argentini M, Bole-Feysot C, Jost B, Scheer E, Tora L.; ''TAF9b (formerly TAF9L) is a bona fide TAF that has unique and overlapping roles with TAF9.''; PubMedEurope PMCScholia
Saul VV, de la Vega L, Milanovic M, Krüger M, Braun T, Fritz-Wolf K, Becker K, Schmitz ML.; ''HIPK2 kinase activity depends on cis-autophosphorylation of its activation loop.''; PubMedEurope PMCScholia
Murphy LO, Smith S, Chen RH, Fingar DC, Blenis J.; ''Molecular interpretation of ERK signal duration by immediate early gene products.''; PubMedEurope PMCScholia
Chehab NH, Malikzay A, Appel M, Halazonetis TD.; ''Chk2/hCds1 functions as a DNA damage checkpoint in G(1) by stabilizing p53.''; PubMedEurope PMCScholia
Bertolotti A, Melot T, Acker J, Vigneron M, Delattre O, Tora L.; ''EWS, but not EWS-FLI-1, is associated with both TFIID and RNA polymerase II: interactions between two members of the TET family, EWS and hTAFII68, and subunits of TFIID and RNA polymerase II complexes.''; PubMedEurope PMCScholia
Li M, Chen D, Shiloh A, Luo J, Nikolaev AY, Qin J, Gu W.; ''Deubiquitination of p53 by HAUSP is an important pathway for p53 stabilization.''; PubMedEurope PMCScholia
Raingeaud J, Whitmarsh AJ, Barrett T, Dérijard B, Davis RJ.; ''MKK3- and MKK6-regulated gene expression is mediated by the p38 mitogen-activated protein kinase signal transduction pathway.''; PubMedEurope PMCScholia
Dietrich N, Bracken AP, Trinh E, Schjerling CK, Koseki H, Rappsilber J, Helin K, Hansen KH.; ''Bypass of senescence by the polycomb group protein CBX8 through direct binding to the INK4A-ARF locus.''; PubMedEurope PMCScholia
Ainbinder E, Bergelson S, Pinkus R, Daniel V.; ''Regulatory mechanisms involved in activator-protein-1 (AP-1)-mediated activation of glutathione-S-transferase gene expression by chemical agents.''; PubMedEurope PMCScholia
Lin TY, Cheng YC, Yang HC, Lin WC, Wang CC, Lai PL, Shieh SY.; ''Loss of the candidate tumor suppressor BTG3 triggers acute cellular senescence via the ERK-JMJD3-p16(INK4a) signaling axis.''; PubMedEurope PMCScholia
Hoffmann A, Roeder RG.; ''Cloning and characterization of human TAF20/15. Multiple interactions suggest a central role in TFIID complex formation.''; PubMedEurope PMCScholia
Lukas SM, Kroe RR, Wildeson J, Peet GW, Frego L, Davidson W, Ingraham RH, Pargellis CA, Labadia ME, Werneburg BG.; ''Catalysis and function of the p38 alpha.MK2a signaling complex.''; PubMedEurope PMCScholia
Adamovich Y, Adler J, Meltser V, Reuven N, Shaul Y.; ''AMPK couples p73 with p53 in cell fate decision.''; PubMedEurope PMCScholia
Keller DM, Lu H.; ''p53 serine 392 phosphorylation increases after UV through induction of the assembly of the CK2.hSPT16.SSRP1 complex.''; PubMedEurope PMCScholia
Hublitz P, Kunowska N, Mayer UP, Müller JM, Heyne K, Yin N, Fritzsche C, Poli C, Miguet L, Schupp IW, van Grunsven LA, Potiers N, van Dorsselaer A, Metzger E, Roemer K, Schüle R.; ''NIR is a novel INHAT repressor that modulates the transcriptional activity of p53.''; PubMedEurope PMCScholia
Lakin ND, Hann BC, Jackson SP.; ''The ataxia-telangiectasia related protein ATR mediates DNA-dependent phosphorylation of p53.''; PubMedEurope PMCScholia
Pant V, Xiong S, Iwakuma T, Quintás-Cardama A, Lozano G.; ''Heterodimerization of Mdm2 and Mdm4 is critical for regulating p53 activity during embryogenesis but dispensable for p53 and Mdm2 stability.''; PubMedEurope PMCScholia
Zhang Y, Xiong Y, Yarbrough WG.; ''ARF promotes MDM2 degradation and stabilizes p53: ARF-INK4a locus deletion impairs both the Rb and p53 tumor suppression pathways.''; PubMedEurope PMCScholia
Moiseeva O, Bourdeau V, Roux A, Deschênes-Simard X, Ferbeyre G.; ''Mitochondrial dysfunction contributes to oncogene-induced senescence.''; PubMedEurope PMCScholia
Xie S, Wang Q, Wu H, Cogswell J, Lu L, Jhanwar-Uniyal M, Dai W.; ''Reactive oxygen species-induced phosphorylation of p53 on serine 20 is mediated in part by polo-like kinase-3.''; PubMedEurope PMCScholia
Siepi F, Gatti V, Camerini S, Crescenzi M, Soddu S.; ''HIPK2 catalytic activity and subcellular localization are regulated by activation-loop Y354 autophosphorylation.''; PubMedEurope PMCScholia
Yang W, Rozan LM, McDonald ER, Navaraj A, Liu JJ, Matthew EM, Wang W, Dicker DT, El-Deiry WS.; ''CARPs are ubiquitin ligases that promote MDM2-independent p53 and phospho-p53ser20 degradation.''; PubMedEurope PMCScholia
Cheng Q, Cross B, Li B, Chen L, Li Z, Chen J.; ''Regulation of MDM2 E3 ligase activity by phosphorylation after DNA damage.''; PubMedEurope PMCScholia
Jones RG, Plas DR, Kubek S, Buzzai M, Mu J, Xu Y, Birnbaum MJ, Thompson CB.; ''AMP-activated protein kinase induces a p53-dependent metabolic checkpoint.''; PubMedEurope PMCScholia
Taira N, Nihira K, Yamaguchi T, Miki Y, Yoshida K.; ''DYRK2 is targeted to the nucleus and controls p53 via Ser46 phosphorylation in the apoptotic response to DNA damage.''; PubMedEurope PMCScholia
Okamura S, Arakawa H, Tanaka T, Nakanishi H, Ng CC, Taya Y, Monden M, Nakamura Y.; ''p53DINP1, a p53-inducible gene, regulates p53-dependent apoptosis.''; PubMedEurope PMCScholia
Deacon K, Blank JL.; ''Characterization of the mitogen-activated protein kinase kinase 4 (MKK4)/c-Jun NH2-terminal kinase 1 and MKK3/p38 pathways regulated by MEK kinases 2 and 3. MEK kinase 3 activates MKK3 but does not cause activation of p38 kinase in vivo.''; PubMedEurope PMCScholia
Ben-Levy R, Leighton IA, Doza YN, Attwood P, Morrice N, Marshall CJ, Cohen P.; ''Identification of novel phosphorylation sites required for activation of MAPKAP kinase-2.''; PubMedEurope PMCScholia
Sun P, Yoshizuka N, New L, Moser BA, Li Y, Liao R, Xie C, Chen J, Deng Q, Yamout M, Dong MQ, Frangou CG, Yates JR, Wright PE, Han J.; ''PRAK is essential for ras-induced senescence and tumor suppression.''; PubMedEurope PMCScholia
Cotta-Ramusino C, McDonald ER, Hurov K, Sowa ME, Harper JW, Elledge SJ.; ''A DNA damage response screen identifies RHINO, a 9-1-1 and TopBP1 interacting protein required for ATR signaling.''; PubMedEurope PMCScholia
Clifton AD, Young PR, Cohen P.; ''A comparison of the substrate specificity of MAPKAP kinase-2 and MAPKAP kinase-3 and their activation by cytokines and cellular stress.''; PubMedEurope PMCScholia
D'Orazi G, Cecchinelli B, Bruno T, Manni I, Higashimoto Y, Saito S, Gostissa M, Coen S, Marchetti A, Del Sal G, Piaggio G, Fanciulli M, Appella E, Soddu S.; ''Homeodomain-interacting protein kinase-2 phosphorylates p53 at Ser 46 and mediates apoptosis.''; PubMedEurope PMCScholia
Le MT, Teh C, Shyh-Chang N, Xie H, Zhou B, Korzh V, Lodish HF, Lim B.; ''MicroRNA-125b is a novel negative regulator of p53.''; PubMedEurope PMCScholia
Hou X, Liu JE, Liu W, Liu CY, Liu ZY, Sun ZY.; ''A new role of NUAK1: directly phosphorylating p53 and regulating cell proliferation.''; PubMedEurope PMCScholia
Abe Y, Matsumoto S, Wei S, Nezu K, Miyoshi A, Kito K, Ueda N, Shigemoto K, Hitsumoto Y, Nikawa J, Enomoto Y.; ''Cloning and characterization of a p53-related protein kinase expressed in interleukin-2-activated cytotoxic T-cells, epithelial tumor cell lines, and the testes.''; PubMedEurope PMCScholia
Banin S, Moyal L, Shieh S, Taya Y, Anderson CW, Chessa L, Smorodinsky NI, Prives C, Reiss Y, Shiloh Y, Ziv Y.; ''Enhanced phosphorylation of p53 by ATM in response to DNA damage.''; PubMedEurope PMCScholia
Barradas M, Anderton E, Acosta JC, Li S, Banito A, Rodriguez-Niedenführ M, Maertens G, Banck M, Zhou MM, Walsh MJ, Peters G, Gil J.; ''Histone demethylase JMJD3 contributes to epigenetic control of INK4a/ARF by oncogenic RAS.''; PubMedEurope PMCScholia
Huang L, Yan Z, Liao X, Li Y, Yang J, Wang ZG, Zuo Y, Kawai H, Shadfan M, Ganapathy S, Yuan ZM.; ''The p53 inhibitors MDM2/MDMX complex is required for control of p53 activity in vivo.''; PubMedEurope PMCScholia
Okazaki K, Sagata N.; ''The Mos/MAP kinase pathway stabilizes c-Fos by phosphorylation and augments its transforming activity in NIH 3T3 cells.''; PubMedEurope PMCScholia
Kuzmichev A, Nishioka K, Erdjument-Bromage H, Tempst P, Reinberg D.; ''Histone methyltransferase activity associated with a human multiprotein complex containing the Enhancer of Zeste protein.''; PubMedEurope PMCScholia
Keller DM, Zeng X, Wang Y, Zhang QH, Kapoor M, Shu H, Goodman R, Lozano G, Zhao Y, Lu H.; ''A DNA damage-induced p53 serine 392 kinase complex contains CK2, hSpt16, and SSRP1.''; PubMedEurope PMCScholia
Sharma P, Sharma M, Amin ND, Albers RW, Pant HC.; ''Regulation of cyclin-dependent kinase 5 catalytic activity by phosphorylation.''; PubMedEurope PMCScholia
Serrano M, Hannon GJ, Beach D.; ''A new regulatory motif in cell-cycle control causing specific inhibition of cyclin D/CDK4.''; PubMedEurope PMCScholia
Hupp TR, Lane DP.; ''Allosteric activation of latent p53 tetramers.''; PubMedEurope PMCScholia
Matsuura H, Nishitoh H, Takeda K, Matsuzawa A, Amagasa T, Ito M, Yoshioka K, Ichijo H.; ''Phosphorylation-dependent scaffolding role of JSAP1/JIP3 in the ASK1-JNK signaling pathway. A new mode of regulation of the MAP kinase cascade.''; PubMedEurope PMCScholia
Saitoh M, Nishitoh H, Fujii M, Takeda K, Tobiume K, Sawada Y, Kawabata M, Miyazono K, Ichijo H.; ''Mammalian thioredoxin is a direct inhibitor of apoptosis signal-regulating kinase (ASK) 1.''; PubMedEurope PMCScholia
Luciani MG, Hutchins JR, Zheleva D, Hupp TR.; ''The C-terminal regulatory domain of p53 contains a functional docking site for cyclin A.''; PubMedEurope PMCScholia
Gully CP, Velazquez-Torres G, Shin JH, Fuentes-Mattei E, Wang E, Carlock C, Chen J, Rothenberg D, Adams HP, Choi HH, Guma S, Phan L, Chou PC, Su CH, Zhang F, Chen JS, Yang TY, Yeung SC, Lee MH.; ''Aurora B kinase phosphorylates and instigates degradation of p53.''; PubMedEurope PMCScholia
Takekawa M, Tatebayashi K, Saito H.; ''Conserved docking site is essential for activation of mammalian MAP kinase kinases by specific MAP kinase kinase kinases.''; PubMedEurope PMCScholia
Martinez E, Ge H, Tao Y, Yuan CX, Palhan V, Roeder RG.; ''Novel cofactors and TFIIA mediate functional core promoter selectivity by the human TAFII150-containing TFIID complex.''; PubMedEurope PMCScholia
Saldaña-Meyer R, Recillas-Targa F.; ''Transcriptional and epigenetic regulation of the p53 tumor suppressor gene.''; PubMedEurope PMCScholia
Facchin S, Lopreiato R, Ruzzene M, Marin O, Sartori G, Götz C, Montenarh M, Carignani G, Pinna LA.; ''Functional homology between yeast piD261/Bud32 and human PRPK: both phosphorylate p53 and PRPK partially complements piD261/Bud32 deficiency.''; PubMedEurope PMCScholia
Lee JH, Kim HS, Lee SJ, Kim KT.; ''Stabilization and activation of p53 induced by Cdk5 contributes to neuronal cell death.''; PubMedEurope PMCScholia
Gangloff YG, Pointud JC, Thuault S, Carré L, Romier C, Muratoglu S, Brand M, Tora L, Couderc JL, Davidson I.; ''The TFIID components human TAF(II)140 and Drosophila BIP2 (TAF(II)155) are novel metazoan homologues of yeast TAF(II)47 containing a histone fold and a PHD finger.''; PubMedEurope PMCScholia
Wade M, Li YC, Wahl GM.; ''MDM2, MDMX and p53 in oncogenesis and cancer therapy.''; PubMedEurope PMCScholia
Oxidative stress, caused by increased concentration of reactive oxygen species (ROS) in the cell, can happen as a consequence of mitochondrial dysfunction induced by the oncogenic RAS (Moiseeva et al. 2009) or independent of oncogenic signaling. Prolonged exposure to interferon-beta (IFNB, IFN-beta) also results in ROS increase (Moiseeva et al. 2006). ROS oxidize thioredoxin (TXN), which causes TXN to dissociate from the N-terminus of MAP3K5 (ASK1), enabling MAP3K5 to become catalytically active (Saitoh et al. 1998). ROS also stimulate expression of Ste20 family kinases MINK1 (MINK) and TNIK through an unknown mechanism, and MINK1 and TNIK positively regulate MAP3K5 activation (Nicke et al. 2005).
MAP3K5 phosphorylates and activates MAP2K3 (MKK3) and MAP2K6 (MKK6) (Ichijo et al. 1997, Takekawa et al. 2005), which act as p38 MAPK kinases, as well as MAP2K4 (SEK1) (Ichijo et al. 1997, Matsuura et al. 2002), which, together with MAP2K7 (MKK7), acts as a JNK kinase.
MKK3 and MKK6 phosphorylate and activate p38 MAPK alpha (MAPK14) and beta (MAPK11) (Raingeaud et al. 1996), enabling p38 MAPKs to phosphorylate and activate MAPKAPK2 (MK2) and MAPKAPK3 (MK3) (Ben-Levy et al. 1995, Clifton et al. 1996, McLaughlin et al. 1996, Sithanandam et al. 1996, Meng et al. 2002, Lukas et al. 2004, White et al. 2007), as well as MAPKAPK5 (PRAK) (New et al. 1998 and 2003, Sun et al. 2007).
Phosphorylation of JNKs (MAPK8, MAPK9 and MAPK10) by MAP3K5-activated MAP2K4 (Deacon and Blank 1997, Fleming et al. 2000) allows JNKs to migrate to the nucleus (Mizukami et al. 1997) where they phosphorylate JUN. Phosphorylated JUN binds FOS phosphorylated by ERK1 or ERK2, downstream of activated RAS (Okazaki and Sagata 1995, Murphy et al. 2002), forming the activated protein 1 (AP-1) complex (FOS:JUN heterodimer) (Glover and Harrison 1995, Ainbinder et al. 1997).
Activation of p38 MAPKs and JNKs downstream of MAP3K5 (ASK1) ultimately converges on transcriptional regulation of CDKN2A locus. In dividing cells, nucleosomes bound to the CDKN2A locus are trimethylated on lysine residue 28 of histone H3 (HIST1H3A) by the Polycomb repressor complex 2 (PRC2), creating the H3K27Me3 (Me3K-28-HIST1H3A) mark (Bracken et al. 2007, Kotake et al. 2007). The expression of Polycomb constituents of PRC2 (Kuzmichev et al. 2002) - EZH2, EED and SUZ12 - and thereby formation of the PRC2, is positively regulated in growing cells by E2F1, E2F2 and E2F3 (Weinmann et al. 2001, Bracken et al. 2003). H3K27Me3 mark serves as a docking site for the Polycomb repressor complex 1 (PRC1) that contains BMI1 (PCGF4) and is therefore named PRC1.4, leading to the repression of transcription of p16-INK4A and p14-ARF from the CDKN2A locus, where PCR1.4 mediated repression of p14-ARF transcription in humans may be context dependent (Voncken et al. 2005, Dietrich et al. 2007, Agherbi et al. 2009, Gao et al. 2012). MAPKAPK2 and MAPKAPK3, activated downstream of the MAP3K5-p38 MAPK cascade, phosphorylate BMI1 of the PRC1.4 complex, leading to dissociation of PRC1.4 complex from the CDKN2A locus and upregulation of p14-ARF transcription (Voncken et al. 2005). AP-1 transcription factor, formed as a result of MAP3K5-JNK signaling, as well as RAS signaling, binds the promoter of KDM6B (JMJD3) gene and stimulates KDM6B expression. KDM6B is a histone demethylase that removes H3K27Me3 mark i.e. demethylates lysine K28 of HIST1H3A, thereby preventing PRC1.4 binding to the CDKN2A locus and allowing transcription of p16-INK4A (Agger et al. 2009, Barradas et al. 2009, Lin et al. 2012).
p16-INK4A inhibits phosphorylation-mediated inactivation of RB family members by CDK4 and CDK6, leading to cell cycle arrest (Serrano et al. 1993). p14-ARF inhibits MDM2-mediated degradation of TP53 (p53) (Zhang et al. 1998), which also contributes to cell cycle arrest in cells undergoing oxidative stress. In addition, phosphorylation of TP53 by MAPKAPK5 (PRAK) activated downstream of MAP3K5-p38 MAPK signaling, activates TP53 and contributes to cellular senescence (Sun et al. 2007).
TP53 (p53) tumor suppressor protein is a transcription factor that functions as a homotetramer (Jeffrey et al. 1995). The protein levels of TP53 are low in unstressed cells due to MDM2-mediated ubiquitination that triggers proteasome-mediated degradation of TP53 (Wu et al. 1993). The E3 ubiquitin ligase MDM2 functions as a homodimer/homo-oligomer or a heterodimer/hetero-oligomer with MDM4 (MDMX) (Linares et al. 2003, Toledo and Wahl 2007, Cheng et al. 2011, Wade et al. 2013).
Activating phosphorylation of TP53 at serine residues S15 and S20 in response to genotoxic stress disrupts TP53 interaction with MDM2. In contrast to MDM2, E3 ubiquitin ligases RNF34 (CARP1) and RFFL (CARP2) can ubiquitinate phosphorylated TP53 (Yang et al. 2007). Binding of MDM2 to TP53 is also inhibited by the tumor suppressor p14-ARF, transcribed from the CDKN2A gene in response to oncogenic signaling or oxidative stress (Zhang et al. 1998, Parisi et al. 2002, Voncken et al. 2005). Ubiquitin-dependant degradation of TP53 can also be promoted by PIRH2 (Leng et al. 2003) and COP1 (Dornan et al. 2004) ubiquitin ligases. HAUSP (USP7) can deubiquitinate TP53, contributing to TP53 stabilization (Li et al. 2002).
While post-translational regulation plays a prominent role, TP53 activity is also controlled at the level of promoter function (reviewed in Saldana-Meyer and Recillas-Targa 2011), mRNA stability and translation efficiency (Mahmoudi et al. 2009, Le et al. 2009, Takagi et al. 2005).
DSIF is a heterodimer consisting of hSPT4 (human homolog of yeast Spt4- p14) and hSPT5 (human homolog of yeast Spt5-p160). DSIF association with Pol II may be enabled by Spt5 binding to Pol II creating a scaffold for NELF binding (Wada et al.,1998). Spt5 subunit of DSIF can be phosphorylated by P-TEFb.
TP53INP1 (p53INP1) forms a complex with TP53 and its regulating kinase HIPK2 (Tomasini et al. 2003, Okamura et al. 2001). HIPK2 undergoes autophosphorylation in response to DNA damage, but the mechanism and the identity of autophosphorylation sites have not yet been fully elucidated (Bitomsky et al. 2013, Saul et al. 2013, Siepi et al. 2013). Autophosphorylation enables HIPK2 binding to PIN1. PIN1 likely facilitates a conformational change that enables HIPK2 to phosphorylate its targets, including TP53 (Bitomsky et al. 2013).
NUAK1, activated by STK11 (LKB1)-mediated phosphorylation on threonine residue T211, phosphorylates TP53 (p53) on serine residues S15 and S392, contributing to TP53-mediated transcriptional activation of the CDKN1A (p21) gene (Zeng and Berger 2006, Hou et al. 2011).
NOC2L (NIR) is an inhibitor of histone acetyltransferases that associates with TP53 (p53). NOC2L binding represses TP53-mediated transcriptional activation at TP53 target genes. One possible mechanism is the prevention of activating histone acetylation at TP53 target genes (Hublitz et al. 2005).
Activated MAPKAPK5 (PRAK) phosphorylates TP53 (p53) on serine residue S37, thereby activating it. MAPKAPK5-mediated phosphorylation of TP53 promotes growth arrest and senescence induced by oncogenic RAS, but is not needed for TP53-dependent growth arrest in response to DNA damage (Sun et al. 2007).
In response to DNA double strand breaks, serine at position 15 of the TP53 (p53) tumor suppressor protein is rapidly phosphorylated by the ATM kinase. This serves to stabilize the p53 protein. A rise in the levels of the p53 protein induces the expression of p21 cyclin-dependent kinase inhibitor. This prevents the normal progression from G1 to S phase, thus providing a check on replication of damaged DNA (Banin et al. 1998, Canman et al. 1998, Khanna et al. 1998).
Activated ATM kinase phosphorylates DYRK2 at threonine residue T106 (matching T33 in the shorter splicing isoform of DYRK2) and serine residue S442 (matching S369 in the shorter splicing isoform of DYRK2). ATM-mediated phosphorylation of DYRK2 prevents DYRK2 ubiquitination by MDM2 and the consequent DYRK2 degradation (Taira et al. 2010).
MDM2 ubiquitinates DYRK2 in the nucleus, leading to proteasome-mediated degradation of DYRK2. This results in the removal of nuclear DYRK2 and exclusive localization of DYRK2 in the cytosol in the absence of DNA damage. ATM-mediated phosphorylation of DYRK2 prevents ubiquitination of DYRK2 by MDM2, leading to accumulation of nuclear DYRK2 (Taira et al. 2010).
CHEK1, activated by ATR-mediated phosphorylation, can phosphorylate TP53 at serine residue S20, resulting in the increased half-life of TP53 (Shieh et al. 2000).
ATR, bound to DNA damage sites, phosphorylates TP53 (p53) at serine residue S15. S15 phosphorylation stabilizes TP53 by inhibiting the binding of TP53 to the ubiquitin ligase MDM2 (Tibbetts et al. 1999, Lakin et al. 1999).
HIPK2, activated by autophosphorylation in response to DNA damage, phosphorylates TP53 (p53) at serine residue S46 (D'Orazi et al. 2002, Hofmann et al. 2002). A TP53 transcriptional target TP53INP1 facilitates TP53 phosphorylation at S46 in response to double strand breaks and, together with HIPK2, promotes the transcription of TP53 apoptotic gene targets (Okamura et al. 2001, Tomasini et al. 2003).
TP53 (p53) forms a complex with a protein kinase HIPK1 (Kondo et al. 2003, Rey et al. 2013). HIPK1 may phosphorylate TP53 on an unidentified serine residue (Kondo et al. 2003). Binding to HIPK1 has been implicated in the negative regulation of TP53 activity (Kondo et al. 2003), but HIPK1 overexpression has also been implicated in the positive regulation of TP53 activity (Rey et al. 2013).
Casein kinase II (CK2), associated with the FACT2 complex, phosphorylates TP53 (p53) at serine residue S392, enhancing transcriptional activity of TP53 in response to UV irradiation (Keller et al. 2001, Keller and Lu 2002).
AURKA (Aurora kinase A) phosphorylates TP53 (p53) on serine residue S315. This leads to destabilization of TP53 by enhancing MDM2 binding (Katayama et al. 2004). Based on Xenopus studies, AURKA-mediated phosphorylation of TP53 occurs in the presence of AURKA activator TPX2 (Pascreau et al. 2009).
AURKB (Aurora kinase B) phosphorylates TP53 (p53) at serine residue S269 and threonine residue T284, which inhibits TP53 transcriptional activity (Wu et al. 2011).
CDK5, in complex with cleaved CDK5R1 (p25), which ensures nuclear localization (Patrick et al. 1999, Lee et al. 2008), phosphorylates TP53 (p53) on serine residues S15, S33 and S46. CDK5-mediated phosphorylation of TP53 promotes transcription of pro-apoptotic genes and neuronal cell death (Zhang et al. 2002, Lee et al. 2007, Lee et al. 2008).
TAF1, the largest subunit of the transcription initiation factor TFIID complex, phosphorylates TP53 (p53) at threonine residue T55. TAF1-mediated phosphorylation of TP53 increases affinity of TP53 for the ubiquitin ligase MDM2, thus promoting TP53 degradation (Li et al. 2004).
AMPK, activated in response to glucose deprivation, phosphorylates TP53 (p53) on serine residue S15, initiating AMPK-dependent cell cycle arrest (Jones et al. 2005). AMPK-dependent phosphorylation of TP73 (p73) appears to be involved in TP53 stabilization upon AMPK activation (Adamovich et al. 2014).
The atypical protein serine/threonine kinase TP53RK (TP53-regulating kinase), also known as PRPK (p53-related protein kinase), phosphorylates TP53 (p53) on serine residue S15 (Abe et al. 2001, Facchin et al. 2003).
CHEK2 (Chk2) phosphorylates TP53 (p53) at serine residue S20 (Hirao et al. 2000, Shieh et al. 2000, Chehab et al. 2000). Phosphorylation of TP53 at serine residue S20 is necessary for DNA damage-induced TP53 stabilization as it compromises the interaction of TP53 with the ubiquitin ligase MDM2 (Chehab et al. 1999, Chehab et al. 2000). S20 phosphorylation is also required for the induction of TP53-dependent transcripts in response to DNA damage (Hirao et al. 2000).
Try the New WikiPathways
View approved pathways at the new wikipathways.org.Quality Tags
Ontology Terms
Bibliography
History
External references
DataNodes
overhanging
ssDNA-DSBs:p-MRN:p-S1981,Ac-K3016-ATM:KAT5:BRCA1-C complex:EXO1,DNA2:BLM,WRN:p-S990,Ac-K1249-BRIP1:RAD17:RFC:RAD9:HUS1:RAD1:RHNO1:TOPBP1MAP3K5 phosphorylates and activates MAP2K3 (MKK3) and MAP2K6 (MKK6) (Ichijo et al. 1997, Takekawa et al. 2005), which act as p38 MAPK kinases, as well as MAP2K4 (SEK1) (Ichijo et al. 1997, Matsuura et al. 2002), which, together with MAP2K7 (MKK7), acts as a JNK kinase.
MKK3 and MKK6 phosphorylate and activate p38 MAPK alpha (MAPK14) and beta (MAPK11) (Raingeaud et al. 1996), enabling p38 MAPKs to phosphorylate and activate MAPKAPK2 (MK2) and MAPKAPK3 (MK3) (Ben-Levy et al. 1995, Clifton et al. 1996, McLaughlin et al. 1996, Sithanandam et al. 1996, Meng et al. 2002, Lukas et al. 2004, White et al. 2007), as well as MAPKAPK5 (PRAK) (New et al. 1998 and 2003, Sun et al. 2007).
Phosphorylation of JNKs (MAPK8, MAPK9 and MAPK10) by MAP3K5-activated MAP2K4 (Deacon and Blank 1997, Fleming et al. 2000) allows JNKs to migrate to the nucleus (Mizukami et al. 1997) where they phosphorylate JUN. Phosphorylated JUN binds FOS phosphorylated by ERK1 or ERK2, downstream of activated RAS (Okazaki and Sagata 1995, Murphy et al. 2002), forming the activated protein 1 (AP-1) complex (FOS:JUN heterodimer) (Glover and Harrison 1995, Ainbinder et al. 1997).
Activation of p38 MAPKs and JNKs downstream of MAP3K5 (ASK1) ultimately converges on transcriptional regulation of CDKN2A locus. In dividing cells, nucleosomes bound to the CDKN2A locus are trimethylated on lysine residue 28 of histone H3 (HIST1H3A) by the Polycomb repressor complex 2 (PRC2), creating the H3K27Me3 (Me3K-28-HIST1H3A) mark (Bracken et al. 2007, Kotake et al. 2007). The expression of Polycomb constituents of PRC2 (Kuzmichev et al. 2002) - EZH2, EED and SUZ12 - and thereby formation of the PRC2, is positively regulated in growing cells by E2F1, E2F2 and E2F3 (Weinmann et al. 2001, Bracken et al. 2003). H3K27Me3 mark serves as a docking site for the Polycomb repressor complex 1 (PRC1) that contains BMI1 (PCGF4) and is therefore named PRC1.4, leading to the repression of transcription of p16-INK4A and p14-ARF from the CDKN2A locus, where PCR1.4 mediated repression of p14-ARF transcription in humans may be context dependent (Voncken et al. 2005, Dietrich et al. 2007, Agherbi et al. 2009, Gao et al. 2012). MAPKAPK2 and MAPKAPK3, activated downstream of the MAP3K5-p38 MAPK cascade, phosphorylate BMI1 of the PRC1.4 complex, leading to dissociation of PRC1.4 complex from the CDKN2A locus and upregulation of p14-ARF transcription (Voncken et al. 2005). AP-1 transcription factor, formed as a result of MAP3K5-JNK signaling, as well as RAS signaling, binds the promoter of KDM6B (JMJD3) gene and stimulates KDM6B expression. KDM6B is a histone demethylase that removes H3K27Me3 mark i.e. demethylates lysine K28 of HIST1H3A, thereby preventing PRC1.4 binding to the CDKN2A locus and allowing transcription of p16-INK4A (Agger et al. 2009, Barradas et al. 2009, Lin et al. 2012).
p16-INK4A inhibits phosphorylation-mediated inactivation of RB family members by CDK4 and CDK6, leading to cell cycle arrest (Serrano et al. 1993). p14-ARF inhibits MDM2-mediated degradation of TP53 (p53) (Zhang et al. 1998), which also contributes to cell cycle arrest in cells undergoing oxidative stress. In addition, phosphorylation of TP53 by MAPKAPK5 (PRAK) activated downstream of MAP3K5-p38 MAPK signaling, activates TP53 and contributes to cellular senescence (Sun et al. 2007).
Expression and
DegradationActivating phosphorylation of TP53 at serine residues S15 and S20 in response to genotoxic stress disrupts TP53 interaction with MDM2. In contrast to MDM2, E3 ubiquitin ligases RNF34 (CARP1) and RFFL (CARP2) can ubiquitinate phosphorylated TP53 (Yang et al. 2007). Binding of MDM2 to TP53 is also inhibited by the tumor suppressor p14-ARF, transcribed from the CDKN2A gene in response to oncogenic signaling or oxidative stress (Zhang et al. 1998, Parisi et al. 2002, Voncken et al. 2005). Ubiquitin-dependant degradation of TP53 can also be promoted by PIRH2 (Leng et al. 2003) and COP1 (Dornan et al. 2004) ubiquitin ligases. HAUSP (USP7) can deubiquitinate TP53, contributing to TP53 stabilization (Li et al. 2002).
While post-translational regulation plays a prominent role, TP53 activity is also controlled at the level of promoter function (reviewed in Saldana-Meyer and Recillas-Targa 2011), mRNA stability and translation efficiency (Mahmoudi et al. 2009, Le et al. 2009, Takagi et al. 2005).
Annotated Interactions
overhanging
ssDNA-DSBs:p-MRN:p-S1981,Ac-K3016-ATM:KAT5:BRCA1-C complex:EXO1,DNA2:BLM,WRN:p-S990,Ac-K1249-BRIP1:RAD17:RFC:RAD9:HUS1:RAD1:RHNO1:TOPBP1