Recombinant Mouse E3 ubiquitin-protein ligase Mdm2 (Mdm2)

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Code CSB-EP013626MO
Size US$306
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Greater than 90% as determined by SDS-PAGE.
Target Names
Uniprot No.
Research Area
Alternative Names
Mdm2; E3 ubiquitin-protein ligase Mdm2; EC; Double minute 2 protein; Oncoprotein Mdm2; RING-type E3 ubiquitin transferase Mdm2; p53-binding protein Mdm2
Mus musculus (Mouse)
Expression Region
Target Protein Sequence
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
Protein Length
Full Length
Tag Info
N-terminal 6xHis-tagged
Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose.
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
3-7 business days
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.

The process of expressing the recombinant mouse Mdm2 protein in the E.coli requires the recombinant DNA gene formed by the integration of encoding gene for the 1-489aa of the mouse Mdm2 protein and N-terminal 6xHis tag sequence, the expression vector that the recombinant DNA gene inserts into, the E.coli that provided the necessary macromolecules and components for transcription and translation of the cloned expression vector. After isolation and purification, this N-terminal 6xHis-tagged recombinant Mdm2 protein was obtained. This recombinant Mdm2 protein is characterized by high purity (>90%, SDS-PAGE). This Mdm2 protein ran along the gel to the band of approximately 58 kDa molecular weight.

E3 ubiquitin-protein ligase Mdm2 is a protein encoding by a gene named Mdm2 in mouse and a gene named MDM2 in human. Generally, MDM2 is known as a negative regulator of the tumour suppressor p53, making it an attractive target for anti-cancer drug design. Mdm2 affects p53 stability from two sections, one is  as an E3 ubiquitin ligase that recognizes the N-terminal trans-activation domain of the p53 tumor suppressor, another is as an inhibitor of p53 transcriptional activation. Currently, diseases involved MDM2 include Lessel-Kubisch Syndrome and Accelerated Tumor Formation.

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Target Background

E3 ubiquitin-protein ligase that mediates ubiquitination of p53/TP53, leading to its degradation by the proteasome. Inhibits p53/TP53- and p73/TP73-mediated cell cycle arrest and apoptosis by binding its transcriptional activation domain. Also acts as a ubiquitin ligase E3 toward itself, ARRB1 and ARBB2. Permits the nuclear export of p53/TP53. Promotes proteasome-dependent ubiquitin-independent degradation of retinoblastoma RB1 protein. Inhibits DAXX-mediated apoptosis by inducing its ubiquitination and degradation. Component of the TRIM28/KAP1-MDM2-p53/TP53 complex involved in stabilizing p53/TP53. Also component of the TRIM28/KAP1-ERBB4-MDM2 complex which links growth factor and DNA damage response pathways. Mediates ubiquitination and subsequent proteasome degradation of DYRK2 in nucleus. Ubiquitinates IGF1R and SNAI1 and promotes them to proteasomal degradation. Ubiquitinates DCX, leading to DCX degradation and reduction of the dendritic spine density of olfactory bulb granule cells. Ubiquitinates DLG4, leading to proteasomal degradation of DLG4 which is required for AMPA receptor endocytosis. Negatively regulates NDUFS1, leading to decreased mitochondrial respiration, marked oxidative stress, and commitment to the mitochondrial pathway of apoptosis. Binds NDUFS1 leading to its cytosolic retention rather than mitochondrial localization resulting in decreased supercomplex assembly (interactions between complex I and complex III), decreased complex I activity, ROS production, and apoptosis.
Gene References into Functions
  1. The proximal p53 inhibitor MDM2 is markedly downregulated in subcutaneous white and brown adipose tissues of mice during aging. Genetic disruption of MDM2 in adipocytes triggers canonical p53-mediated apoptotic and senescent programs, leading to age-dependent lipodystrophy and its associated metabolic disorders, including type 2 diabetes, nonalcoholic fatty liver disease, hyperlipidemia, and energy imbalance. PMID: 30131393
  2. To investigate whether MDM2C462A, which retains p53 binding, has p53-suppressing activity, we generated Mdm2C462A/C462A;p53ER/- mice. Adult Mdm2-null mice died approximately 7 days after tamoxifen-induced p53 activation, indicating that in the absence of MDM2, MDMX cannot suppress p53. p53 activity is higher in the presence of MDM2C462A than in the absence of MDM2. PMID: 29123033
  3. These results show that ischemic preconditioning increased neuronal MDM2 protein levels, which prevented ischemia-induced p53 stabilization and neuronal death. PMID: 29371613
  4. the disruption of Mdm2/p53 interaction affects the early-embryonic otic progenitor cells and their descendants. PMID: 28181574
  5. E2F6 suppresses Mdm2 expression in cells harboring the SNP309G allele but not the SNP309T allele. PMID: 28925402
  6. the MDM2-p53-PC signalling axis links mitochondrial metabolism to insulin secretion and glucose homeostasis, and could represent a therapeutic target in diabetes. PMID: 27265727
  7. Selective dysregulation of Mdm2 and Mdm4 alternative splicing underlies p53 anti-repression and motor neuron death in a mouse model of spinal muscular atrophy. PMID: 30012555
  8. Aging mouse models have revealed the complexity of the p53-Mdm2 axis and have solidly placed the p53 network as being key to many aspects of both pathological aging conditions and normal aging (review). PMID: 29192902
  9. The results indicated that simultaneously knocking down MDM2 and overexpressing p53 was able to inhibit proliferation and induce G1 cell cycle arrest in H1299 cells, compared with either alone. PMID: 29039579
  10. These results illustrate the importance of the cooperative activities of p53 and Mdm2 in a network of miRNAs that function to impose a barrier against aberrant cardiomyocyte cell cycle re-entry to maintain cardiac homeostasis. PMID: 28745540
  11. c-Abl phosphorylation of Mdm2 has a role in regulation of p53 tumor suppression and bone marrow failure PMID: 27956626
  12. Bre enhances osteoblastic differentiation by promoting the Mdm2-mediated degradation of p53. PMID: 28436570
  13. genetic and biochemical data support a role for Mdm2 in cardiac growth control through the regulation of p53, the Pgc-1 family of transcriptional coactivators and the pivotal antioxidant Pink1 PMID: 29267372
  14. The availability of large-scale genomic profiling datasets, like those from The Cancer Genome Atlas Research Network, have provided the opportunity to evaluate the consequences of MDM2 amplification and SNP inheritance across high-quality tumor samples from diverse cancer indications. [review] PMID: 27194168
  15. findings document contrasting effects of ATM-Mdm2 signaling on p53 tumor suppression and reveal that destabilizing Mdm2 by promoting its phosphorylation by ATM would be effective in treating oncogene-induced malignancies. PMID: 27568562
  16. the existence of an unusual functional interplay between STATs and CREB at the onset of adipogenesis through shared CRTC cofactors, is reported. PMID: 27362806
  17. Mdm2 expression is required for cell survival even in the absence of p53. Moreover, results suggest that p73 compensates for loss of p53. PMID: 28576884
  18. In Fmr1 KO neurons, Mdm2 is hyperphosphorylated, nuclear localized basally, and unaffected by MEF2 activation, which our data suggest due to an enhanced interaction with Eukaryotic Elongation Factor 1alpha (EF1alpha), whose protein levels are elevated in Fmr1 KO. Expression of a dephosphomimetic of Mdm2 rescues PSD-95 ubiquitination, degradation and synapse elimination in Fmr1 KO neurons. PMID: 28025327
  19. MDM2 is a non-redundant survival factor for proximal tubular cells by protecting them from spontaneous p53 overexpression-related cell death. PMID: 27882940
  20. The case emphasizes that MDM2 expression represents a possible pitfall in the diagnosis of spindle cell tumors. The differential diagnostic distinction between FDCS and a dedifferentiated liposarcoma is discussed. PMID: 27271257
  21. MDM2 is involved in fibroblast activation, mediating renal tubulointerstitial fibrosis via a p53-independent pathway dependant on Notch1 ubiquitination and proteasome degradation. PMID: 28100501
  22. These findings suggest that Mdm2 splice isoforms may play critical roles in the regulatory loop of p53/Mdm2-Mdm4 via a RING domain-mediated biochemical mechanism. PMID: 28166445
  23. both MDM2 and MDMX deletion-caused pancreatic defects are completely rescued by loss of p53, verifying the crucial role of the MDM2 and/or MDMX in regulating p53 in a spatio-temporal manner during the development, functional maintenance, and related disease progress of endocrine pancreas. PMID: 28118981
  24. Vif stabilization by CBFbeta is mainly caused by impairing MDM2-mediated degradation. PMID: 27758855
  25. These results demonstrated a critical prosurvival role for MDM2 in the oocytes PMID: 27912078
  26. we failed to detect any increase in p53 level in mutant oocytes, nor any other apoptotic marker, introgression of this targeted invalidation in p53-/- mice restored the fertility of females. This study is the first to show that Mdm2, but not Mdm4, has a critical role in oocyte survival and would be involved in premature ovarian insufficiency phenotype. PMID: 27364741
  27. Inhibition of MDM2 re-sensitizes rapamycin resistant renal cancer cells via the activation of p53. PMID: 27825169
  28. Inactivation of Mdm2 in sertoli cells triggers p53 activation and apoptosis as early as 15.5 days post conception with a significant increase in apoptosis. PMID: 26470726
  29. These findings elucidate a critical role of Mdm2-p53-Nedd4-2 signaling underlying the regulation of neural network synchrony and seizure susceptibility. PMID: 27000207
  30. These studies demonstrate that Mdm2 holds promise as a therapeutic target in combination with conventional therapy and may lead to new clinical therapies for Triple-negative breast cancers . PMID: 26494859
  31. there is a fine tuned balance in the interaction of ribosomal proteins with the MDM2/p53 axis which is important in normal hematopoiesis. PMID: 27042854
  32. Study showed that demonstrate that Mdm2 intertwines the mammalian target of RAPA, mTOR, and the receptor kinase GRK2 in regulating the desensitization/inactivation of the GPR17 receptor PMID: 26228571
  33. MDM2 mediates p73 ubiquitination PMID: 26025930
  34. MDM2 supports the PRC2 mediated repression of lineage-specific genes in stem cells, independent of p53. PMID: 26748827
  35. physiological activation of the 5S RNP-Mdm2-p53 pathway may contribute to functional decline of the hematopoietic system in a cell-autonomous manner over time. PMID: 25987256
  36. Ribosomal proteins L11 and L5 activate TAp73 by overcoming MDM2 inhibition. PMID: 25301064
  37. The Mdm2(SNP309-)(G) allele significantly impacts CRC through mechanisms outside the p53 pathway. PMID: 25435368
  38. MDM2 maintains homeostasis and long survival in podocytes preventing apoptosis. PMID: 25349197
  39. our results show MDM4-MDM2/p53-IGF1R as an original regulatory mechanism for CNS regeneration PMID: 25981963
  40. Mir-660 inhibits lung tumorigenesis by targeting MDM2-p53 interaction. PMID: 25501825
  41. L-GILZ stabilizes p53 proteins by decreasing p53 ubiquitination and increasing MDM2 ubiquitination. PMID: 25168242
  42. Interaction of BAI1 with the N-terminus (AA 1-200) of MDM2 in the brain modulates PSD-95 levels and thereby regulates synaptic plasticity. PMID: 25751059
  43. Mdm2regulates entry into myogenesis by targeting CEBPb for degradation by the 26 S proteasome. PMID: 25720496
  44. Src phosphorylation converts Mdm2 from a ubiquitinating to a neddylating E3 ligase. PMID: 25624478
  45. Data show that NEDD4-1 E3 ligase as a novel component of the tumor suppressor protein p53/proto-oncogene proteins c-mdm2 regulatory feedback loop that controls p53 activity during stress responses. PMID: 24413081
  46. Restoration of wild-type p53 expression in Mdm2-overexpressing tumors suppresses tumor growth. PMID: 24598047
  47. results reveal a novel p53- and Mdm2-independent oncogenic function of Mdmx that provides new insight into the many cancers that overexpress Mdmx. PMID: 24608433
  48. both MDM2 and MDMX are required for monitoring p53 activity during lens development, and they may function independently or synergistically to control p53 and maintain normal lens morphogenesis PMID: 25263199
  49. The regulation of Mdm2 by the E3 ubiquitin ligase APC/C is shown. It has important therapeutic implications for tumors with Mdm2 overexpression. PMID: 24804778
  50. TSLP induces mast cell development and aggravates allergic reactions through the activation of MDM2 and STAT6. PMID: 24751726

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Subcellular Location
Nucleus, nucleoplasm. Cytoplasm. Nucleus, nucleolus. Nucleus.
Protein Families
MDM2/MDM4 family
Tissue Specificity
Ubiquitously expressed at low-level throughout embryo development and in adult tissues. MDM2-p90 is much more abundant than MDM2-p76 in testis, brain, heart, and kidney, but in the thymus, spleen, and intestine, the levels of the MDM2 proteins are roughly
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