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Home Antibody All anti-MDM2 antibodies

Anti-MDM2 PHOSPHO Antibody

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Specifications Citations Related Products Product Documents
SKU Description Amount Price Availability*  
TA319465
  • Rabbit polyclonal MDM2 phospho S185 antibody (Phospho-specific)
100ug 325 3-7 Days
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WB(1)

OriGene Data

ImmunogenThis affinity purified antibody was prepared from whole rabbit serum produced by repeated immunizations with a synthetic peptide corresponding to aa 177-198 of mouse MDM2.
Clone Name IsotypeIgG
Species Reactivityhuman, mouse, rat Concentration1.12 mg/mL
Guaranteed Application *WB Suggested DilutionsELISA: 1:3,000 - 1:12,000, WB: 1:500 - 1:2,000, IP: 1:100
Buffer0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2
Note MDM2 is a nuclear phosphoprotein with an apparent molecular mass of 90 kD that forms a complex with the p53 tumor suppressor protein. Human MDM2 was identified as a homologous product of the 'murine double minute 2' gene (mdm2). The MDM2 gene enhances the tumorigenic potential of cells when it is overexpressed and encodes a putative transcription factor. Forming a tight complex with the p53 gene, the MDM2 oncogene can inhibit p53-mediated transactivation. MDM2 binds to p53 and amplification of MDM2 in sarcomas leads to escape from p53-regulated growth control. This mechanism of tumorigenesis parallels that for virus-induced tumors in which viral oncogene products bind to and functionally inactivate p53. Overexpression of the MDM2 oncogene was found in leukemias. Inactivation of tumor suppressor genes leads to deregulated cell proliferation and is a key factor in human tumorigenesis. MDM2 interacts physically and functionally with the retinoblastoma (RB) protein and can inhibit its growth regulatory capacity. Both RB and p53 can be subjected to negative regulation by the product of a single cellular protooncogene. The interference of binding to p53 prevents the interaction of MDM2 and its regulation of the transcriptional activity of p53 in vivo. Direct association of p53 with the cellular protein MDM2 results in ubiquitination and subsequent degradation of p53. MDM2-p53 complexes were preferentially found in S/G2M phases of the cell cycle. The MDM2 gene is alternatively spliced, producing 5 additional splice variant transcripts from the full length MDM2 gene. Four out of five of these alternatively spliced forms (MDM2a-MDMd) are missing substantial portions of the p53 binding domain and retain the acidic domain and the zinc-finger domains. The fifth and smallest transcript (MDM2e) retains the largest spliced region encoding the p53 binding domain; however, it lacks the nuclear localization signal, the acidic domain and zinc-finger domains. The alternatively spliced transcripts tend to be expressed in tumorigenic tissue, whereas the full-length MDM2 transcript is expressed in normal tissue. MDM2 is found in the nucleus and cytoplasm, however, it is expressed predominantly in the nucleoplasm. Interaction with ARF (P14) results in the localization of both proteins to the nucleus. The nucleolar localization signals in both ARF and MDM2 may be necessary to allow efficient nucleolar localization of both proteins.

Reference Data

Target NameMus musculus transformed mouse 3T3 cell double minute 2 (Mdm2), transcript variant 1
Alternative Name1700007J15Rik; AA415488; Mdm-2
Database LinkNP_034916
Function
Related Pathway

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WB Image
Affinity Purified Anti-MDM2 pS185 (Rabbit) is shown to detect a 102 kDa band  (arrow) corresponding to phosphorylated mouse MDM2 present in a 293T whole cell lysate.   Cells were serum-starved for 24 hours prior to harvest.  Approxi-mately 20 µg of lysate was loaded per lane for SDS-PAGE.  Untreated cells are shown in lane 1, whereas cells in lane 2 were treated with IGF-1 (100 ng/ml) for 20 min prior to harvest.  Follow reaction of antibody with a 1:2000 dilution of HRP Goat-a-Rabbit IgG for visualization.

 

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