Hmdb loader
Survey
Identification
HMDB Protein ID HMDBP02432
Secondary Accession Numbers
  • 7926
Name E3 ubiquitin-protein ligase Mdm2
Synonyms
  1. Double minute 2 protein
  2. Hdm2
  3. Oncoprotein Mdm2
  4. p53-binding protein Mdm2
Gene Name MDM2
Protein Type Unknown
Biological Properties
General Function Involved in negative regulation of apoptosis
Specific Function E3 ubiquitin-protein ligase that mediates ubiquitination of p53/TP53, leading to its degration by the proteasome. Inhibits p53/TP53- and p73/TP73-mediated cell cycle arrest and apoptosis by binding its transcriptional activation domain. Also acts as an ubiquitin ligase E3 toward itself and ARRB1. Permits the nuclear export of TP53/p53. Promotes proteasome-dependent ubiquitin- independent degradation of retinoblastoma RB1 protein. Inhibits DAXX-mediated apoptosis by inducing its ubiquitination and degradation
Pathways
  • Bafetinib Inhibition of BCR-ABL
  • BCR-ABL Action in CML Pathogenesis
  • Bosutinib Inhibition of BCR-ABL
  • Dasatinib Inhibition of BCR-ABL
  • Imatinib Inhibition of BCR-ABL
  • Nilotinib Inhibition of BCR-ABL
  • Ponatinib Inhibition of BCR-ABL
Reactions Not Available
GO Classification
Component
cell part
intracellular
Function
ion binding
cation binding
metal ion binding
binding
transition metal ion binding
zinc ion binding
protein binding
Cellular Location
  1. Nucleus
  2. Nucleus
  3. Cytoplasm
  4. nucleolus
  5. nucleoplasm
Gene Properties
Chromosome Location Chromosome:1
Locus 12q14.3-q15
SNPs MDM2
Gene Sequence
>1476 bp
ATGTGCAATACCAACATGTCTGTACCTACTGATGGTGCTGTAACCACCTCACAGATTCCA
GCTTCGGAACAAGAGACCCTGGTTAGACCAAAGCCATTGCTTTTGAAGTTATTAAAGTCT
GTTGGTGCACAAAAAGACACTTATACTATGAAAGAGGTTCTTTTTTATCTTGGCCAGTAT
ATTATGACTAAACGATTATATGATGAGAAGCAACAACATATTGTATATTGTTCAAATGAT
CTTCTAGGAGATTTGTTTGGCGTGCCAAGCTTCTCTGTGAAAGAGCACAGGAAAATATAT
ACCATGATCTACAGGAACTTGGTAGTAGTCAATCAGCAGGAATCATCGGACTCAGGTACA
TCTGTGAGTGAGAACAGGTGTCACCTTGAAGGTGGGAGTGATCAAAAGGACCTTGTACAA
GAGCTTCAGGAAGAGAAACCTTCATCTTCACATTTGGTTTCTAGACCATCTACCTCATCT
AGAAGGAGAGCAATTAGTGAGACAGAAGAAAATTCAGATGAATTATCTGGTGAACGACAA
AGAAAACGCCACAAATCTGATAGTATTTCCCTTTCCTTTGATGAAAGCCTGGCTCTGTGT
GTAATAAGGGAGATATGTTGTGAAAGAAGCAGTAGCAGTGAATCTACAGGGACGCCATCG
AATCCGGATCTTGATGCTGGTGTAAGTGAACATTCAGGTGATTGGTTGGATCAGGATTCA
GTTTCAGATCAGTTTAGTGTAGAATTTGAAGTTGAATCTCTCGACTCAGAAGATTATAGC
CTTAGTGAAGAAGGACAAGAACTCTCAGATGAAGATGATGAGGTATATCAAGTTACTGTG
TATCAGGCAGGGGAGAGTGATACAGATTCATTTGAAGAAGATCCTGAAATTTCCTTAGCT
GACTATTGGAAATGCACTTCATGCAATGAAATGAATCCCCCCCTTCCATCACATTGCAAC
AGATGTTGGGCCCTTCGTGAGAATTGGCTTCCTGAAGATAAAGGGAAAGATAAAGGGGAA
ATCTCTGAGAAAGCCAAACTGGAAAACTCAACACAAGCTGAAGAGGGCTTTGATGTTCCT
GATTGTAAAAAAACTATAGTGAATGATTCCAGAGAGTCATGTGTTGAGGAAAATGATGAT
AAAATTACACAAGCTTCACAATCACAAGAAAGTGAAGACTATTCTCAGCCATCAACTTCT
AGTAGCATTATTTATAGCAGCCAAGAAGATGTGAAAGAGTTTGAAAGGGAAGAAACCCAA
GACAAAGAAGAGAGTGTGGAATCTAGTTTGCCCCTTAATGCCATTGAACCTTGTGTGATT
TGTCAAGGTCGACCTAAAAATGGTTGCATTGTCCATGGCAAAACAGGACATCTTATGGCC
TGCTTTACATGTGCAAAGAAGCTAAAGAAAAGGAATAAGCCCTGCCCAGTATGTAGACAA
CCAATTCAAATGATTGTGCTAACTTATTTCCCCTAG
Protein Properties
Number of Residues 491
Molecular Weight 55232.4
Theoretical pI 4.32
Pfam Domain Function
Signals
  • None
Transmembrane Regions
  • None
Protein Sequence
>E3 ubiquitin-protein ligase Mdm2
MCNTNMSVPTDGAVTTSQIPASEQETLVRPKPLLLKLLKSVGAQKDTYTMKEVLFYLGQY
IMTKRLYDEKQQHIVYCSNDLLGDLFGVPSFSVKEHRKIYTMIYRNLVVVNQQESSDSGT
SVSENRCHLEGGSDQKDLVQELQEEKPSSSHLVSRPSTSSRRRAISETEENSDELSGERQ
RKRHKSDSISLSFDESLALCVIREICCERSSSSESTGTPSNPDLDAGVSEHSGDWLDQDS
VSDQFSVEFEVESLDSEDYSLSEEGQELSDEDDEVYQVTVYQAGESDTDSFEEDPEISLA
DYWKCTSCNEMNPPLPSHCNRCWALRENWLPEDKGKDKGEISEKAKLENSTQAEEGFDVP
DCKKTIVNDSRESCVEENDDKITQASQSQESEDYSQPSTSSSIIYSSQEDVKEFEREETQ
DKEESVESSLPLNAIEPCVICQGRPKNGCIVHGKTGHLMACFTCAKKLKKRNKPCPVCRQ
PIQMIVLTYFP
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID Q00987
UniProtKB/Swiss-Prot Entry Name MDM2_HUMAN
PDB IDs
GenBank Gene ID M92424
GeneCard ID MDM2
GenAtlas ID MDM2
HGNC ID HGNC:6973
References
General References
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  6. Sharp DA, Kratowicz SA, Sank MJ, George DL: Stabilization of the MDM2 oncoprotein by interaction with the structurally related MDMX protein. J Biol Chem. 1999 Dec 31;274(53):38189-96. [PubMed:10608892 ]
  7. Song MS, Song SJ, Kim SY, Oh HJ, Lim DS: The tumour suppressor RASSF1A promotes MDM2 self-ubiquitination by disrupting the MDM2-DAXX-HAUSP complex. EMBO J. 2008 Jul 9;27(13):1863-74. doi: 10.1038/emboj.2008.115. Epub 2008 Jun 19. [PubMed:18566590 ]
  8. Oliner JD, Kinzler KW, Meltzer PS, George DL, Vogelstein B: Amplification of a gene encoding a p53-associated protein in human sarcomas. Nature. 1992 Jul 2;358(6381):80-3. [PubMed:1614537 ]
  9. Sigalas I, Calvert AH, Anderson JJ, Neal DE, Lunec J: Alternatively spliced mdm2 transcripts with loss of p53 binding domain sequences: transforming ability and frequent detection in human cancer. Nat Med. 1996 Aug;2(8):912-7. [PubMed:8705862 ]
  10. Veldhoen N, Metcalfe S, Milner J: A novel exon within the mdm2 gene modulates translation initiation in vitro and disrupts the p53-binding domain of mdm2 protein. Oncogene. 1999 Nov 25;18(50):7026-33. [PubMed:10597303 ]
  11. Tamborini E, Della Torre G, Lavarino C, Azzarelli A, Carpinelli P, Pierotti MA, Pilotti S: Analysis of the molecular species generated by MDM2 gene amplification in liposarcomas. Int J Cancer. 2001 Jun 15;92(6):790-6. [PubMed:11351297 ]
  12. Zauberman A, Flusberg D, Haupt Y, Barak Y, Oren M: A functional p53-responsive intronic promoter is contained within the human mdm2 gene. Nucleic Acids Res. 1995 Jul 25;23(14):2584-92. [PubMed:7651818 ]
  13. Landers JE, Cassel SL, George DL: Translational enhancement of mdm2 oncogene expression in human tumor cells containing a stabilized wild-type p53 protein. Cancer Res. 1997 Aug 15;57(16):3562-8. [PubMed:9270029 ]
  14. Liang H, Atkins H, Abdel-Fattah R, Jones SN, Lunec J: Genomic organisation of the human MDM2 oncogene and relationship to its alternatively spliced mRNAs. Gene. 2004 Sep 1;338(2):217-23. [PubMed:15315825 ]
  15. Taubert H, Kappler M, Meye A, Bartel F, Schlott T, Lautenschlager C, Bache M, Schmidt H, Wurl P: A MboII polymorphism in exon 11 of the human MDM2 gene occuring in normal blood donors and in soft tissue sarcoma patients: an indication for an increased cancer susceptibility? Mutat Res. 2000 Nov 30;456(1-2):39-44. [PubMed:11087894 ]
  16. Olson DC, Marechal V, Momand J, Chen J, Romocki C, Levine AJ: Identification and characterization of multiple mdm-2 proteins and mdm-2-p53 protein complexes. Oncogene. 1993 Sep;8(9):2353-60. [PubMed:7689721 ]
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  34. Allende-Vega N, Sparks A, Lane DP, Saville MK: MdmX is a substrate for the deubiquitinating enzyme USP2a. Oncogene. 2010 Jan 21;29(3):432-41. doi: 10.1038/onc.2009.330. Epub 2009 Oct 19. [PubMed:19838211 ]
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