Handle region peptide, rat is a prorenin receptor antagonist, suppresses the progression of diabetic nephropathy and has anti-inflammatory in the eye.
CAT No: R1411
CAS No:749227-53-0
Synonyms/Alias:Handle region peptide, rat;ZEB22753;749227-53-0;
Handle region peptide, rat is a synthetic peptide fragment derived from the handle region of the (pro)renin receptor protein in Rattus norvegicus. As a highly specific sequence, it serves as a valuable tool in the study of renin-angiotensin system (RAS) regulation, protein-protein interactions, and receptor-mediated signaling pathways. The peptide is designed to mimic the endogenous handle region, enabling researchers to dissect the molecular mechanisms underlying (pro)renin receptor function and its implications in various physiological and pathophysiological processes. Its defined sequence and biochemical properties make it particularly relevant for investigations into peptide-receptor dynamics and the modulation of enzymatic activity within the RAS.
Receptor interaction studies: The handle region peptide is widely employed to elucidate the molecular interactions between the (pro)renin receptor and its ligands. By acting as a competitive inhibitor or a functional mimic, the peptide allows researchers to probe the binding specificity and affinity of the receptor, providing critical insights into the structural determinants of receptor-ligand recognition. Such studies are instrumental in mapping the interaction interface and understanding the conformational changes that occur upon ligand engagement, ultimately informing the design of novel modulators targeting the RAS.
Signal transduction research: In cellular and biochemical assays, the peptide is utilized to modulate (pro)renin receptor-mediated signaling pathways. By introducing the handle region fragment, investigators can selectively activate or inhibit downstream signaling cascades, such as those involving ERK1/2 phosphorylation or MAP kinase pathways. This targeted approach enables the dissection of receptor-dependent signaling events and helps clarify the specific role of the handle region in transducing extracellular signals into defined cellular responses.
Enzymatic activity modulation: The handle region peptide serves as a functional probe for studying the regulation of renin and prorenin enzymatic activity. By interacting with the (pro)renin receptor, the peptide can influence the catalytic properties of these enzymes, allowing researchers to assess changes in angiotensinogen cleavage or angiotensin I generation in vitro. Such experiments are essential for characterizing the biochemical consequences of handle region engagement and for understanding how peptide-mediated modulation impacts overall RAS activity.
Peptide-receptor interaction mapping: Advanced structural and biophysical studies leverage the handle region peptide as a model system to map binding epitopes and investigate conformational dynamics within the (pro)renin receptor complex. Utilizing techniques such as NMR spectroscopy, surface plasmon resonance, or isothermal titration calorimetry, researchers can quantify binding affinities and delineate the structural features responsible for high-affinity interactions. These data contribute to a deeper molecular understanding of receptor function and support rational design efforts for peptide-based modulators.
Peptide functionalization and assay development: The defined sequence and functional relevance of the handle region peptide make it an ideal candidate for incorporation into custom assay platforms and biosensors. By immobilizing or labeling the peptide, researchers can develop sensitive detection systems for studying receptor-ligand interactions or screening for small-molecule inhibitors. Such applications are valuable in both basic research and early-stage drug discovery, facilitating high-throughput analysis of RAS modulators and advancing the field of peptide-based assay technology.
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