Autocamtide 2, amide is a substrate (100 μM final concentration) for CaMK family assays.
CAT No: R1226
Autocamtide 2, amide is a synthetic peptide substrate designed to mimic the phosphorylation site recognized by Ca2+/calmodulin-dependent protein kinase II (CaMKII). As a biochemically engineered peptide, it features a specific amino acid sequence that enables selective interaction with CaMKII, making it highly valuable for investigating kinase activity and substrate specificity. Its amide modification at the C-terminus enhances stability and mimics the native peptide environment, facilitating more physiologically relevant experimental outcomes. The functional relevance of this compound lies in its established use as a model substrate in phosphorylation assays, providing a robust platform for dissecting the molecular mechanisms underlying signal transduction, enzyme kinetics, and regulatory protein interactions in cellular processes.
Kinase Activity Assays: Autocamtide 2, amide is widely employed as a substrate in in vitro kinase assays to quantitatively measure CaMKII activity. By serving as a defined target for phosphorylation, it enables researchers to monitor enzyme kinetics, characterize substrate specificity, and evaluate the impact of modulators or inhibitors on kinase function. This application is particularly critical for elucidating the role of CaMKII in diverse cellular signaling pathways, supporting both fundamental research and the development of novel biochemical assays.
Signal Transduction Research: The peptide's sequence specificity and structural features make it an ideal tool for dissecting Ca2+/calmodulin-dependent signaling cascades. Researchers utilize it to study the dynamics of phosphorylation events, enabling detailed analysis of how CaMKII-mediated modifications regulate downstream effectors and cellular responses. Its use contributes to a deeper understanding of the molecular mechanisms that govern neuronal plasticity, memory formation, and other calcium-dependent processes.
Enzyme Inhibitor Screening: In drug discovery and biochemical screening programs, Autocamtide 2, amide provides a reliable substrate for evaluating the efficacy and selectivity of CaMKII inhibitors. By incorporating the peptide into high-throughput screening platforms, scientists can rapidly assess compound libraries for inhibitory activity, facilitating the identification and optimization of small molecules that modulate kinase function. This approach supports the advancement of chemical biology and pharmacological research targeting protein kinases.
Peptide Structure-Function Studies: The defined sequence and modifiable nature of this peptide make it a valuable model for investigating structure-activity relationships in peptide-protein interactions. Researchers can introduce sequence variants or chemical modifications to probe the determinants of substrate recognition, binding affinity, and phosphorylation efficiency. Such studies yield insights into the molecular basis of enzyme-substrate specificity and inform the rational design of improved peptide substrates or inhibitors.
Analytical Method Development: Autocamtide 2, amide is also instrumental in the validation and calibration of analytical techniques such as mass spectrometry, HPLC, and electrophoretic methods for detecting and quantifying phosphorylated peptides. Its well-characterized phosphorylation profile allows for accurate assessment of method sensitivity, reproducibility, and specificity. This application supports the development of robust analytical workflows for monitoring kinase activity and post-translational modifications in complex biological samples.
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