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    MDM2

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    For Research Use Only. Not For Clinical Use.


    Background

    This gene encodes a nuclear-localized E3 ubiquitin ligase. The encoded protein can promote tumor formation by targeting tumor suppressor proteins, such as p53, for proteasomal degradation. This gene is itself transcriptionally-regulated by p53. Overexpression or amplification of this locus is detected in a variety of different cancers. There is a pseudogene for this gene on chromosome 2. Alternative splicing results in a multitude of transcript variants, many of which may be expressed only in tumor cells.
    Protein class

    Cancer-related genes, Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets

    Predicted location

    Intracellular

    Single cell type specificity

    Cell type enhanced (Endometrial ciliated cells)

    Immune cell specificity

    Low immune cell specificity

    Cell line specificity

    Cell line enhanced (HBEC3-KT, U-698)

    Interaction

    Interacts with p53/TP53, TP73/p73, RBL5 and RP11. Binds specifically to RNA. Can interact with RB1, E1A-associated protein EP300 and the E2F1 transcription factor. Forms a ternary complex with p53/TP53 and WWOX. Interacts with CDKN2AIP, RFWD3, USP7, PYHIN1, and RBBP6. Interacts with ARRB1 and ARRB2. Interacts with PSMA3. Found in a trimeric complex with MDM2, MDM4 and USP2. Interacts with USP2 (via N-terminus and C-terminus). Interacts with MDM4. Part of a complex with MDM2, DAXX, RASSF1 and USP7. Part of a complex with DAXX, MDM2 and USP7. Interacts directly with DAXX and USP7. Interacts (via C-terminus) with RASSF1 isoform A (via N-terminus); the interaction is independent of TP53. Interacts with APEX1; leading to its ubiquitination and degradation. Interacts with RYBP; this inhibits ubiquitination of TP53. Identified in a complex with RYBP and p53/TP53. Also a component of the TRIM28/KAP1-MDM2-p53/TP53 complex involved in regulating p53/TP53 stabilization and activity. Binds directly both p53/TP53 and TRIM28. Component of the TRIM28/KAP1-ERBB4-MDM2 complex involved in connecting growth factor responses with DNA damage. Interacts directly with both TRIM28 and ERBB4 in the complex. Interacts with DYRK2. Interacts with IGF1R. Interacts with TRIM13; the interaction ubiquitinates MDM2 leading to its proteasomal degradation. Interacts with SNAI1; this interaction promotes SNAI1 ubiquitination. Interacts with NOTCH1 (via intracellular domain). Interacts with FHIT. Interacts with RFFL and RNF34; the interaction stabilizes MDM2. Interacts with CDK5RAP3 and CDKN2A/ARF; form a ternary complex involved in regulation of p53/TP53 (PubMed:16173922). Interacts with MTA1. Interacts with AARB2. Interacts with MTBP. Interacts with PML. Interacts with TBRG1. Interacts with the 5S RNP which is composed of the 5S RNA, RPL5 and RPL11; the interaction is direct, occurs in the nucleoplasm and negatively regulates MDM2-mediated TP53 ubiquitination and degradation (PubMed:15195100, 24120868). Interacts with ADGRB1; the interaction results in inhibition of MDM2-mediated ubiquitination and degradation of DLG4/PSD95, promoting DLG4 stability and regulating synaptic plasticity (By similarity). Interacts with RPL23A; this interaction may promote p53/TP53 polyubiquitination (PubMed:26203195). Interacts with NDUFS1 (PubMed:30879903). (Microbial infection) Interacts with herpes virus 8 protein v-IRF4. (Microbial infection) Interacts with and ubiquitinates HIV-1 Tat.

    Molecular function

    Transferase

    More Types Infomation
    Related Diseases
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    EGFR Tyrosine Kinase Inhibitor Resistance EGFR Tyrosine Kinase Inhibitor Resistance
    Gastric Cancer Gastric Cancer
    Prostate Cancer Prostate Cancer
    Related Signaling Pathways
    p53 Signaling Pathway p53 Signaling Pathway
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