The AlphaLISA™ SureFire® Ultra™ Human and Mouse IRF6 Dimer assay is a sandwich immunoassay for quantitative detection of the IRF6 dimer in cellular lysates using Alpha Technology.
| Feature | Specification |
|---|---|
| Application | Cell Signaling |
| Protocol Time | 2h at RT |
| Sample Volume | 30 µL |
The AlphaLISA™ SureFire® Ultra™ Human and Mouse IRF6 Dimer assay is a sandwich immunoassay for quantitative detection of the IRF6 dimer in cellular lysates using Alpha Technology.
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Interferon Regulatory Factor 6 (IRF6) is a transcription factor of the IRF family with critical roles in epithelial development, keratinocyte differentiation, and craniofacial morphogenesis. Unlike many IRF family members primarily associated with immune signaling, IRF6 is most prominently expressed in epithelial tissues and is essential for normal palate, lip, and skin development. IRF6 drives expression of genes involved in keratinocyte terminal differentiation and suppresses epithelial proliferation by regulating cyclin D1 and other cell cycle regulators. Loss-of-function mutations in IRF6 are causative for Van der Woude syndrome and popliteal pterygium syndrome, two autosomal dominant disorders characterized by cleft lip and palate. In cancer, IRF6 has been identified as a tumor suppressor in oral, breast, and skin cancers, where reduced IRF6 activity correlates with increased proliferation and invasiveness.
IRF6 dimerization represents a key step in the activation and transcriptional function of this epithelial regulatory transcription factor. Like other IRF family members, IRF6 contains an N-terminal DNA-binding domain and a C-terminal IRF association domain (IAD) that mediates homo- and heterodimerization. Dimerization of IRF6 is required for high-affinity DNA binding at composite regulatory elements and for full transcriptional activation of target genes involved in keratinocyte differentiation and epithelial barrier formation. The IRF6 dimer interface has been shown to be disrupted by several disease-associated mutations found in Van der Woude and popliteal pterygium syndrome patients, underscoring the functional importance of the dimeric state. Detection of the IRF6 dimer, as distinct from total or phosphorylated IRF6 monomer, provides insight into the oligomeric activation state of IRF6 and its capacity for transcriptional engagement, which is particularly relevant in studies of epithelial development, wound healing, and oral cancer biology.
The AlphaLISA SureFire Ultra Human and Mouse IRF6 Dimer Detection Kit is a sandwich immunoassay for the quantitative detection of IRF6 dimer in cellular lysates, using Alpha Technology.
Formats:
AlphaLISA SureFire Ultra kits are compatible with:
AlphaLISA SureFire Ultra kits can be used for:
HT-1376 and A431 cells were seeded in a 96-well plate (40,000 cells/well) in complete medium and incubated overnight at 37°C, 5% CO2. Cells were treated with increasing concentrations of PMA for 1 hour.
After treatment, the cells were lysed with 50 µL or 100 µL of Lysis Buffer for 10 minutes at RT with shaking (350 rpm). Phospho (Ser424) and Dimer IRF6 levels were evaluated using AlphaLISA SureFire Ultra assays. For the detection step, 10 µL of cell lysate (approximately 4,000 cells for IRF6 Phospho and 8,000 cells for IRF6 Dimer) was transferred into a 384-well white OptiPlate, followed by 5 µL of Acceptor mix and incubated for 1 hour at RT. Finally, 5 µL of Donor mix was then added to each well and incubated for 1 hour at RT in the dark. The plate was read on an Envision using standard AlphaLISA settings.
As expected, treatment with PMA induced IRF6 phosphorylation and subsequent dimerization with no change to Total ERK levels (data not shown).
RAW 264.7 cells were seeded in a 96-well plate (40,000 cells/well) in complete medium and incubated overnight at 37°C, 5% CO2. Cells were treated with 50 nM of PMA for 1 hour.
After treatment, the cells were lysed with 50 µL or 100 µL of Lysis Buffer for 10 minutes at RT with shaking (350 rpm). Phospho (Ser424) and Dimer IRF6 levels were evaluated using AlphaLISA SureFire Ultra assays. For the detection step, 10 µL of cell lysate (approximately 4,000 cells for Phospho IRF6, 8,000 cells for Dimer) was transferred into a 384-well white OptiPlate, followed by 5 µL of Acceptor mix and incubated for 1 hour at RT. Finally, 5 µL of Donor mix was then added to each well and incubated for 1 hour at RT in the dark. The plate was read on an Envision using standard AlphaLISA settings.
As expected, treatment with PMA induced IRF6 phosphorylation and subsequent dimerization with no change to Total ERK levels (data not shown).
Cell lysate was prepared from HT-1376 cells cultured to confluence in T175 flasks at 37°C, 5% CO2. Cells were treated with 50 nM PMA for 1 hour and lysed in 4 mL of Lysis Buffer for 10 minutes at RT with shaking.
Lysates were serially diluted and Phospho (Ser424) and Dimer IRF6 levels were evaluated using AlphaLISA SureFire Ultra assays. For the detection step, 10 µL of lysate was transferred into a 384-well white OptiPlate, followed by 5 µL of Acceptor mix and incubated for 1 hour at room temperature. Finally, 5 µL of Donor mix was then added to each well and incubated for 1 hour at RT in the dark. The plate was read on an Envision using standard AlphaLISA settings.
Approximate number of cells/datapoint is indicated on the graph. The assay can detect IRF6 Dimer in less than 2,000 cells. The dotted line represents assay background.
| Application |
Cell Signaling
|
|---|---|
| Automation Compatible |
Yes
|
| Brand |
AlphaLISA SureFire Ultra
|
| Detection Modality |
Alpha
|
| Product Group |
Kit
|
| Protocol Time |
2h at RT
|
| Sample Volume |
30 µL
|
| Shipping Conditions |
Shipped in Blue Ice
|
| Target |
IRF6
|
| Target Class |
Phosphoproteins
|
| Target Species |
Human
Mouse
|
| Technology |
Alpha
|
| Therapeutic Area |
Inflammation
Oncology
|
| Unit Size |
100 Assay Points
|
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