Description
Product Overview
The ProbeSeq Caspase-3 Cleavable PeptideProbe™ System provides sequence-optimized peptide substrates for selective detection of caspase-3 activity, a key executor enzyme in programmed cell death (apoptosis). The system enables quantitative measurement of protease-mediated cleavage associated with cancer progression, therapeutic response, neurodegeneration, and cellular stress.
This product supports development of enzyme-based diagnostic assays, biosensor platforms, and point-of-care detection technologies for monitoring apoptosis and treatment response. Peptide probes are engineered for high cleavage specificity, rapid enzymatic response, and stable signal generation across fluorescence, electrochemical, and microfluidic detection formats.
The system is compatible with molecular diagnostics workflows, lab-on-chip devices, and multiplex disease detection platforms.
Peptide Probe Technology Advantages
Peptide cleavage probes enable direct measurement of enzymatic activity rather than biomarker abundance alone, providing functional insight into disease processes. Compared to antibody-based detection, peptide probes offer rapid kinetics, tunable specificity, strong biosensor compatibility, and reproducible signal generation.
Molecular Detection Mechanism
The peptide probe contains a caspase-3–specific cleavage sequence (e.g., DEVD motif) that is selectively hydrolyzed by active caspase-3. Enzymatic cleavage generates a measurable signal change through reporter release, fluorescence activation, or electrochemical response.
The system supports real-time monitoring of apoptosis-related enzymatic activity and quantitative analysis of disease-associated cell death processes.
Target Design Strategy
Peptide sequences are optimized for selective recognition and cleavage by caspase-3.
Design optimization prioritizes:
High substrate specificity for caspase-3
Rapid cleavage kinetics
Minimal non-specific protease interaction
Stable peptide structure in biological samples
Compatibility with reporter conjugation
Reproducible enzymatic response
Custom cleavage sequences available for specific caspase targets.
Assay Workflow Integration
The PeptideProbe™ system supports workflows including sample incubation, enzymatic cleavage reaction, and signal detection.
The assay integrates with:
Fluorescence detection platforms
Electrochemical biosensors
Microfluidic diagnostic devices
Point-of-care testing systems
Multiplex protease detection assays
Automated molecular analysis workflows
System Components
Sequence-validated caspase-3 peptide probes
Recommended reaction conditions
Reporter compatibility guidance
Buffer and handling instructions
Signal detection protocols
Custom probe formats available upon request.
Platform Compatibility
Fluorescence detection systems
Electrochemical sensing platforms
Microfluidic diagnostic cartridges
Lab-on-chip technologies
Lateral-flow detection systems
Clinical biomarker research workflows
Performance Characteristics
High cleavage specificity, rapid enzymatic response, low background signal, strong reporter compatibility, stable performance in biological samples, and scalable assay integration.
Technical Specifications
Detection target: Caspase-3 protease activity
Probe format: Synthetic cleavable peptide substrate
Recognition motif: DEVD-based sequence
Conjugation options: Fluorophore / quencher / electrochemical tag / linker ready
Purity: ≥95%
Format: Lyophilized or solution
Storage: –20 °C recommended
Quality Assurance
Sequence verification, purity validation, functional cleavage testing, and manufacturing quality review performed for each batch.
Research Applications
Cancer therapy monitoring
Apoptosis biomarker detection
Drug response studies
Neurodegeneration research
Point-of-care assay development
Biosensor engineering
Microfluidic molecular diagnostics
Storage and Handling
Store at –20 °C in dry conditions. Avoid repeated freeze–thaw cycles. Reconstitute in recommended buffer before use.
For Research Use Only (RUO). Not for diagnostic use.
