Temporin A features a short, hydrophobic peptide framework commonly associated with studies of membrane interaction and amphipathic folding. Its sequence promotes helical transitions in lipid-mimetic systems. Researchers analyze its solvent-dependent conformational states and binding equilibria. Applications span antimicrobial-peptide modeling, biophysical studies, and structural optimization.
CAT No: R2467
CAS No:188713-69-1
Synonyms/Alias:TEMPORIN A;188713-69-1;L-Phenylalanyl-L-leucyl-L-prolyl-L-leucyl-L-isoleucylglycyl-L-arginyl-L-valyl-L-leucyl-L-serylglycyl-L-isoleucyl-L-leucinamide;CHEMBL406865;Temporin A (FLPLIGRVLSGIL-amide);AKOS040757116;RS-2016;DA-78305;G14597;
Temporin A is a naturally occurring antimicrobial peptide originally isolated from the skin secretions of the European red frog, Rana temporaria. Characterized by its short amino acid sequence and amphipathic α-helical structure, Temporin A exhibits remarkable membrane-disrupting properties that make it a subject of significant interest in biochemical and biomedical research. The peptide's broad-spectrum activity against various microorganisms, combined with its relatively simple structure, lends itself to a multitude of experimental applications in microbiology, peptide engineering, and membrane biophysics. Researchers value Temporin A for its stability under laboratory conditions and its ability to interact selectively with microbial membranes, offering a versatile platform for the exploration of host-pathogen interactions, peptide-membrane dynamics, and the development of novel bioactive compounds.
Antimicrobial Mechanism Studies: Temporin A serves as an essential molecular tool for investigating the mechanisms underlying antimicrobial peptide activity. By integrating it into model membrane systems or bacterial cultures, scientists can observe its rapid insertion into lipid bilayers and subsequent disruption of membrane integrity. These studies help elucidate the specific interactions between amphipathic peptides and microbial cell membranes, providing insights into pore formation, membrane thinning, and depolarization. Such findings are invaluable for advancing the understanding of innate immune defense strategies and guiding the rational design of next-generation antimicrobial agents.
Peptide Engineering and Structure-Activity Relationship (SAR) Analysis: In the realm of peptide engineering, Temporin A is frequently employed as a template for the synthesis of analogs with enhanced potency or selectivity. Researchers manipulate its amino acid sequence to identify structural features critical for antimicrobial efficacy or reduced cytotoxicity. Structure-activity relationship studies leveraging Temporin A have yielded numerous derivatives, each offering unique insights into the balance between hydrophobicity, charge, and secondary structure in peptide function. This approach facilitates the development of customized peptides tailored for specific research or industrial applications.
Membrane Biophysics and Lipid Interaction Research: The unique ability of Temporin A to interact with and perturb lipid membranes makes it a valuable probe in membrane biophysics. Scientists utilize it to study the biophysical properties of lipid bilayers, including membrane fluidity, phase behavior, and permeability changes upon peptide binding. By employing techniques such as circular dichroism spectroscopy, fluorescence assays, and atomic force microscopy, researchers can dissect the molecular dynamics of peptide-membrane interactions. These investigations not only deepen our understanding of membrane-active peptides but also contribute to the broader field of membrane protein research.
Biofilm Inhibition and Disruption Studies: Temporin A is increasingly recognized for its potential in biofilm research, where it is used to assess its ability to prevent biofilm formation or eradicate established biofilms in microbial communities. Its activity against biofilm-embedded bacteria offers a valuable experimental model for exploring strategies to combat persistent microbial infections and biofouling. By incorporating it into in vitro biofilm models, researchers can evaluate the peptide's efficacy in reducing biomass, disrupting extracellular polymeric substances, and enhancing the susceptibility of biofilms to conventional antimicrobials.
Innate Immunity and Host-Pathogen Interaction Research: As a representative member of amphibian-derived antimicrobial peptides, Temporin A provides a window into the evolutionary strategies of innate immunity. Scientists employ it to investigate the modulation of immune responses, the signaling pathways activated upon peptide exposure, and the cross-talk between host cells and invading pathogens. These studies are instrumental in advancing the understanding of innate immune mechanisms across species and may inform the development of biomimetic peptides for research applications.
In summary, Temporin A stands out as a multifaceted research tool with applications spanning antimicrobial mechanism elucidation, peptide engineering, membrane biophysics, biofilm studies, and innate immunity research. Its unique physicochemical properties and broad-spectrum activity enable researchers to probe fundamental biological processes, design innovative peptide derivatives, and explore new frontiers in antimicrobial and membrane biology. As interest in membrane-active peptides continues to grow, Temporin A remains a cornerstone for advancing scientific knowledge in peptide-based research and development.
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