Description
Product Overview
The ProbeSeq VEGFR2 FRAPProbe™ System provides fluorescence-labeled probes for quantitative measurement of vascular endothelial growth factor receptor 2 (VEGFR2) dynamics in live cells. The system enables analysis of receptor diffusion, ligand-induced activation, receptor clustering, and membrane organization associated with angiogenesis signaling pathways.
This assay supports mechanistic investigation of endothelial cell signaling, tumor angiogenesis, vascular remodeling, and therapeutic targeting of VEGF pathways. Probe design ensures strong photostability, controlled photobleaching performance, and reliable fluorescence recovery for quantitative FRAP measurements.
The system is compatible with confocal microscopy, live-cell imaging platforms, microfluidic cell culture systems, and organ-on-chip vascular models.
FRAP Technology Advantages
FRAP provides real-time measurement of receptor mobility and membrane signaling dynamics within living cells. Unlike endpoint biochemical assays, FRAP enables direct quantification of receptor diffusion, clustering behavior, and ligand-dependent activation under physiological conditions. This approach supports mechanistic studies of angiogenesis, vascular function, and therapeutic response.
Molecular Detection Mechanism
Fluorescent VEGFR2 probes selectively bind receptor molecules expressed on the cell membrane. A defined region is photobleached using a focused laser pulse, followed by monitoring fluorescence recovery as unbleached receptors diffuse into the region.
Recovery kinetics provide quantitative measurements of receptor diffusion coefficients, mobile fraction, and signaling-related membrane dynamics. The system supports analysis of ligand binding effects, receptor internalization, and membrane reorganization.
Target Design Strategy
Probe design targets extracellular VEGFR2 domains while preserving native receptor function.
Design optimization prioritizes:
High binding specificity to VEGFR2
Minimal non-specific membrane interaction
Strong photostability during repeated imaging
Controlled photobleaching kinetics
Compatibility with live-cell conditions
Stable fluorescence recovery performance
Antibody-, ligand-, or nanobody-based probe formats available.
Assay Workflow Integration
The FRAPProbe™ system supports workflows including live-cell labeling, fluorescence imaging, targeted photobleaching, and quantitative recovery analysis.
The assay integrates with:
Confocal microscopy systems
High-content imaging platforms
Microfluidic vascular models
Endothelial cell culture systems
Organ-on-chip devices
Quantitative image analysis software
System Components
Fluorescent VEGFR2-binding probes
Recommended imaging and photobleaching parameters
Control reagents for calibration
Buffer and labeling guidelines
Data analysis recommendations
Custom probe formats available upon request.
Platform Compatibility
Confocal microscopy systems
Live-cell imaging platforms
High-content screening instruments
Microfluidic cell culture systems
Organ-on-chip devices
Vascular biology research workflows
Performance Characteristics
High fluorescence signal intensity, strong photostability, reproducible photobleaching response, rapid recovery measurement capability, low background binding, and quantitative receptor diffusion analysis.
Technical Specifications
Detection target: VEGFR2 receptor
Probe format: Fluorescent antibody / ligand / nanobody conjugate
Fluorophore options: GFP-compatible, Alexa Fluor, Cy dyes
Imaging compatibility: confocal FRAP systems
Working concentration: assay dependent
Storage: 4 °C or –20 °C depending on probe format
Quality Assurance
Binding specificity validation, fluorescence characterization, photostability testing, functional activity verification, and manufacturing quality review performed for each batch.
Research Applications
Angiogenesis and vascular signaling research
Cancer biology and anti-angiogenic therapy development
Endothelial cell receptor dynamics studies
Drug screening and therapeutic targeting
Organ-on-chip vascular models
Biomaterial and tissue engineering research
Storage and Handling
Store under recommended temperature conditions protected from light. Avoid repeated freeze–thaw cycles. Use sterile handling for live-cell applications.
For Research Use Only (RUO). Not for diagnostic use.
