Met-Gly-Pro-AMC links a tripeptide substrate to a fluorogenic coumarin analog for monitoring enzymatic cleavage. Methionine and proline introduce steric and redox-responsive elements that affect substrate recognition. Researchers use fluorescence output to quantify catalytic behavior. Applications include protease assays, kinetic modeling, and substrate optimization.
CAT No: R2700
CAS No:1926163-52-1
Synonyms/Alias:Met-Gly-Pro-AMC;H-Met-Gly-Pro-AMC;1926163-52-1;HY-P4344;DA-55369;CS-0653711;
Met-Gly-Pro-AMC is a synthetic peptide substrate widely utilized in enzymology and biochemical research, characterized by its N-terminal methionine, glycine, and proline sequence, conjugated at the C-terminus to 7-amino-4-methylcoumarin (AMC). The AMC moiety serves as a fluorogenic leaving group, enabling sensitive detection of peptide bond cleavage. This substrate is particularly valuable for examining the activity and specificity of proteases that recognize the Met-Gly-Pro motif, providing a robust tool for kinetic studies and assay development in protease research. Its well-defined structure and fluorogenic properties facilitate high-throughput analysis and quantitative measurement of enzymatic activity in complex biological samples.
Enzyme Activity Assays: Met-Gly-Pro-AMC is extensively employed as a fluorogenic substrate in the quantitative analysis of protease activity, especially for enzymes that exhibit specificity toward the Met-Gly-Pro sequence. Upon enzymatic cleavage at the peptide bond adjacent to the AMC group, the liberated AMC emits a strong fluorescent signal, which can be monitored in real time. This property allows for highly sensitive detection and precise kinetic characterization of proteolytic enzymes in both purified systems and crude extracts, supporting a range of fundamental and applied biochemical studies.
Protease Specificity Profiling: The substrate is instrumental in profiling the substrate specificity of novel or engineered proteases. By incorporating the Met-Gly-Pro motif, researchers can systematically evaluate enzyme preferences, substrate recognition patterns, and cleavage efficiency. Such specificity profiling is essential for understanding protease function, guiding rational enzyme engineering, and identifying potential regulatory mechanisms in cellular pathways that involve targeted protein processing.
High-Throughput Screening: Met-Gly-Pro-AMC's fluorogenic response makes it ideally suited for high-throughput screening applications in drug discovery and inhibitor development. Automated fluorescence-based assays utilizing this substrate enable rapid and parallel testing of compound libraries for modulators of protease activity. The sensitivity and scalability of these assays facilitate the identification of potent inhibitors or activators, accelerating the early phases of pharmaceutical research and chemical biology investigations.
Kinetic Mechanism Studies: The use of this peptide substrate supports detailed kinetic studies, allowing researchers to determine key enzymatic parameters such as Km, Vmax, and catalytic efficiency. By monitoring the real-time generation of fluorescent AMC, investigators can dissect enzyme reaction mechanisms, evaluate the effects of mutations, and compare the catalytic behavior of related proteases under varying experimental conditions. These insights are critical for advancing mechanistic enzymology and guiding the rational design of enzyme variants.
Analytical Method Development: The defined structure and robust fluorescence properties of Met-Gly-Pro-AMC facilitate its use in the development and validation of analytical methods for protease quantification. It serves as a standard substrate in assay calibration, quality control, and method optimization within research laboratories and industrial settings. Its application enhances assay reproducibility, sensitivity, and reliability, supporting rigorous biochemical analysis across diverse experimental workflows.
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