LRRKtide functions as a defined peptide substrate for exploring kinase specificity and phosphorylation kinetics. Residue placement influences charge distribution and local folding. Researchers examine catalytic efficiency and structural adaptability. Applications include signaling-pathway studies, enzyme profiling, and biochemical mechanism mapping.
CAT No: R2480
CAS No:1071466-49-3
Synonyms/Alias:LRRKtide;HY-P5979;DA-55041;CS-0901237;1071466-49-3;
LRRKtide, a synthetic peptide substrate derived from the leucine-rich repeat kinase 2 (LRRK2) phosphorylation motif, is a valuable biochemical tool in kinase research and assay development. Designed to mimic the specific phosphorylation site targeted by LRRK2, LRRKtide offers exceptional selectivity and sensitivity when used in in vitro studies. Its sequence enables researchers to monitor kinase activity with precision, facilitating the investigation of LRRK2's enzymatic function and regulation. The peptide's stability and compatibility with a range of assay formats make it a preferred substrate in both academic and industrial laboratories focused on neurodegenerative disease mechanisms, cell signaling, and drug discovery. LRRKtide is widely recognized for its role in elucidating the molecular underpinnings of LRRK2-mediated pathways, supporting the advancement of both fundamental and translational research.
Kinase Activity Assays: LRRKtide serves as an optimal substrate for quantifying LRRK2 kinase activity in biochemical assays. By incorporating the peptide into radiometric, fluorescence-based, or luminescence-based kinase assays, researchers can detect phosphorylation events with high specificity. The use of LRRKtide in these assays allows for the accurate measurement of kinase activity under various experimental conditions, enabling the assessment of enzyme kinetics, substrate specificity, and the effects of modulators or inhibitors. This application is essential for dissecting the regulatory mechanisms of LRRK2 and for the screening of small-molecule compounds that may alter its function.
Drug Discovery and Inhibitor Screening: As a model substrate, LRRKtide is instrumental in high-throughput screening platforms designed to identify novel LRRK2 inhibitors. Its reproducible phosphorylation response provides a reliable readout for evaluating compound efficacy and selectivity, expediting the early stages of drug development. By utilizing LRRKtide in these screens, pharmaceutical researchers can efficiently prioritize candidate molecules for further characterization, ultimately supporting efforts to develop targeted therapies for neurodegenerative disorders linked to aberrant LRRK2 activity.
Cell Signaling Pathway Analysis: The peptide's ability to mimic the natural LRRK2 substrate sequence makes it a powerful tool for dissecting downstream signaling pathways. By applying LRRKtide in cell-free or cell lysate-based experiments, scientists can investigate how LRRK2-mediated phosphorylation events influence broader cellular processes. This approach aids in mapping the intricate networks of protein interactions and post-translational modifications that contribute to cellular homeostasis and disease progression, providing valuable insights into the physiological roles of LRRK2.
Biomarker Development: LRRKtide is frequently employed in research aimed at identifying and validating biomarkers associated with LRRK2 activity. By measuring the phosphorylation state of the peptide under different experimental or pathological conditions, investigators can correlate kinase activity with disease-relevant phenotypes or treatment responses. This application is particularly relevant for studies seeking to establish robust, quantitative assays for monitoring LRRK2 function in various biological samples, thereby advancing the field of biomarker discovery.
Enzyme Mechanism Studies: Researchers utilize LRRKtide to probe the mechanistic aspects of LRRK2 catalysis, including substrate recognition, binding affinity, and turnover rates. Detailed kinetic analyses using this peptide substrate reveal critical insights into the fundamental properties of LRRK2, such as its catalytic efficiency and regulation by cofactors or interacting proteins. These studies contribute to a deeper understanding of the enzyme's structure-function relationships, informing the rational design of future experimental approaches and potential therapeutic strategies.
Protein-protein Interaction Research: LRRKtide is also employed in studies exploring the interaction dynamics between LRRK2 and its regulatory partners. By incorporating the peptide in pull-down assays or competition experiments, scientists can assess how binding events modulate kinase activity or substrate preference. This line of investigation is crucial for unraveling the complex interplay between LRRK2 and other cellular factors, ultimately shedding light on the broader functional landscape of this important kinase family. Through its diverse applications, LRRKtide continues to be an indispensable reagent in the toolkit of researchers dedicated to understanding and manipulating LRRK2 biology.
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