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The AlphaLISA™ SureFire® Biotin-Free Human and Mouse Phospho-SYK (Tyr525/526) assay is a sandwich immunoassay for quantitative detection of phospho-SYK (Tyr525/526) in cellular lysates using Alpha Technology.
Feature | Specification |
---|---|
Application | Cell Signaling |
Protocol Time | 2h at RT |
The AlphaLISA™ SureFire® Biotin-Free Human and Mouse Phospho-SYK (Tyr525/526) assay is a sandwich immunoassay for quantitative detection of phospho-SYK (Tyr525/526) in cellular lysates using Alpha Technology.
Spleen tyrosine kinase (SYK) is a non-receptor kinase crucial for immune cell signaling, particularly in B cells and microglia. Activated through interaction with phosphorylated ITAM motifs, SYK triggers downstream pathways governing cell activation, proliferation, and survival. SYK acts as both a tumor suppressor and promoter, depending on the cancer type, and is a key driver of autoimmune diseases like rheumatoid arthritis and lupus.
The AlphaLISA SureFire Biotin-Free Human and Mouse Phospho-SYK (Tyr525/526) Detection Kit is a sandwich immunoassay for the quantitative detection of phospho-SYK in cellular lysates, using Alpha Technology.
Formats:
AlphaLISA SureFire Biotin Free kits are compatible with:
AlphaLISA SureFire Biotin Free kits can be used for:
Application |
Cell Signaling
|
---|---|
Automation Compatible |
Yes
|
Brand |
AlphaLISA SureFire Biotin-Free
|
Detection Modality |
Alpha
|
Protocol Time |
2h at RT
|
Shipping Conditions |
Shipped in Blue Ice
|
Target |
SYK
|
Target Class |
Phosphoproteins
|
Target Species |
Human
Mouse
|
Technology |
Alpha
|
Therapeutic Area |
Autoimmunity
Oncology
|
Unit Size |
500 assay points
|
The Phospho-AlphaLISA SureFire Biotin Free assay measures a protein target when phosphorylated at a specific residue.
The assay uses two antibodies which recognize the phospho epitope and a distal epitope on the targeted protein. AlphaLISA assays require two bead types: Acceptor and Donor beads. Acceptor beads are coated with a proprietary CaptSure™ agent to specifically immobilize the assay specific antibody, labeled with a CaptSure tag. Donor beads are coated with a proprietary CaptSure 3 agent to capture one of the detection antibodies, which is labeled with CaptSure 3 tag. In the presence of phosphorylated protein, the two antibodies bring the Donor and Acceptor beads in close proximity whereby the singlet oxygen transfers energy to excite the Acceptor bead, allowing the generation of a luminescent Alpha signal. The amount of light emission is directly proportional to the quantity of phosphoprotein present in the sample.
The two-plate protocol involves culturing and treating the cells in a 96-well plate before lysis, then transferring lysates into a 384-well Optiplate™ plate before the addition of Phospho-AlphaLISA SureFire Biotin Free detection reagents. This protocol permits the cells viability and confluence to be monitored. In addition, lysates from a single well can be used to measure multiple targets.
Detection of Phosphorylated target protein with AlphaLISA SureFire Biotin Free reagents can be performed in a single plate used for culturing, treatment, and lysis. No washing steps are required. This HTS designed protocol allows for miniaturization while maintaining robust AlphaLISA SureFire quality.
HP-1 cells were treated with 35 ng/mL TGF-ß for 18 hours at 37°C, 5% CO2. Cells were seeded in a 96-well plate (400,000 cells/well) in serum free RPMI 1640 and treated with 20 µM TREM2 Activator (MedChemExpress, HY-148095) for 2 minutes.
After treatment, the cells were lysed with the addition of 50 µL of 5X Lysis Buffer for 10 minutes at RT with shaking (350 rpm). SYK Phospho (Tyr525/526) and Total levels were evaluated using respective AlphaLISA SureFire Biotin Free assays. For the detection step, 10 µL of cell lysate (approximately 16,000 cells) were 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.
TREM2 Activator triggered a rapid increase in the levels of Phospho SYK (Tyr525/526) while Total SYK levels remained unchanged.
Ramos cells were seeded in a 96-well plate (200,000 cells/well) in serum free RPMI 1640 and treated with increasing concentrations of Anti-IgM for 20 minutes.
After treatment, the cells were lysed with the addition of 50 µL of 5X Lysis Buffer for 10 minutes at RT with shaking (350 rpm). SYK Phospho (Tyr525/526) and Total levels were evaluated using respective AlphaLISA SureFire Biotin Free assays. For the detection step, 10 µL of cell lysate (approximately 8,000 cells) were 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.
Treatment with Anti-IgM triggered a dose-dependent increase in the levels of Phospho SYK (Tyr525/526) while Total SYK levels remained unchanged.
U937 cells were seeded in a 96-well plate (400,000 cells/well) in complete RPMI 1640 medium and treated with increasing concentrations of Pervanadate for 30 minutes.
After treatment, the cells were lysed with the addition of 50 µL of 5X Lysis Buffer for 10 minutes at RT with shaking (350 rpm). SYK Phospho (Tyr525/526) and Total levels were evaluated using respective AlphaLISA SureFire Biotin Free assays. For the detection step, 10 µL of cell lysate (approximately 16,000 cells) were 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, Pervanadate triggered a dose-dependent increase in the levels of Phospho SYK (Tyr525/526) while Total SYK levels remained unchanged.
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