| Application | Recommended Dilution |
|---|---|
| FC | 1:50-1:200 |
MDM4, also known as MDMX, serves as a critical negative regulator of the p53 tumor suppressor pathway, functioning alongside its homolog MDM2 to control cellular responses to stress and DNA damage. Unlike MDM2, which primarily promotes p53 degradation through its E3 ubiquitin ligase activity, MDM4 inhibits p53 transcriptional activity through direct binding to its transactivation domain. This regulatory relationship makes MDM4 a compelling target in cancer research, as MDM4 overexpression has been implicated in tumor development across multiple malignancies where it enables cancer cells to evade p53-mediated growth arrest and apoptosis.
This recombinant monoclonal antibody, clone 14D4, offers researchers the reproducibility essential for longitudinal studies investigating MDM4 biology. Developed using recombinant technology with a defined human IgG1 framework, this antibody delivers the sequence-level consistency that eliminates lot-to-lot variability concerns common with traditional hybridoma-derived reagents. The antibody was raised against recombinant human MDM4 protein, ensuring precise epitope targeting.
Validation studies demonstrate reliable performance in flow cytometry applications, with testing conducted on SH-SY5Y neuroblastoma cells. Using intracellular staining protocols with formaldehyde fixation and Triton X-100 permeabilization, the antibody produced clear signal separation from isotype control at 1:100 dilution, confirming specific detection of endogenous MDM4. The antibody is also validated for ELISA applications, providing flexibility across experimental platforms.
This antibody supports investigations into p53 pathway regulation, cancer biology, and therapeutic target validation, particularly in contexts where understanding MDM4-p53 interactions may inform strategies for reactivating tumor suppressor function.
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