Lib2-1 (IL-17C/IL-17RE interaction inhibitor)

Ac(1)-Tyr-His-Ile-Tyr-Tyr-Ala-Ser-Leu-Tyr-Gly-Asp-Leu-Gly-Cys(1)-Gly-NH2 is a synthetic peptide featuring a unique sequence of amino acids that incorporates N-terminal acetylation and C-terminal amidation, enhancing its stability and bioactivity in experimental settings. The presence of multiple tyrosine residues, along with histidine, serine, and cysteine, provides this compound with a versatile biochemical profile suitable for a broad spectrum of research applications. Its structural characteristics allow for specific interactions with proteins, enzymes, and cellular receptors, making it an invaluable tool in molecular biology, biochemistry, and peptide engineering studies. Researchers often select this peptide for its ability to mimic endogenous sequences, facilitate signal transduction investigations, and serve as a scaffold for designing novel analogs. The sequence's inherent flexibility and modifiable functional groups further enable its integration into advanced experimental protocols, supporting both fundamental and applied research objectives.

Signal Transduction Studies: Ac(1)-Tyr-His-Ile-Tyr-Tyr-Ala-Ser-Leu-Tyr-Gly-Asp-Leu-Gly-Cys(1)-Gly-NH2 is frequently employed in the exploration of signal transduction pathways, particularly those involving tyrosine phosphorylation and protein-protein interactions. Its rich tyrosine content allows researchers to investigate kinase activity, substrate specificity, and downstream signaling events in vitro. By serving as a substrate or competitive inhibitor in enzyme assays, the peptide enables detailed mapping of phosphorylation sites and elucidation of regulatory mechanisms within cellular communication networks. Such studies are crucial for understanding how cells respond to external stimuli and adapt their functional states accordingly.

Enzyme Substrate Profiling: In enzymology, this peptide is utilized as a model substrate to characterize protease and peptidase activities. The presence of specific cleavage sites within its sequence makes it ideal for assessing the specificity, kinetics, and inhibition of various enzymes. Researchers can track the hydrolysis of the peptide using analytical techniques such as mass spectrometry or HPLC, providing insights into enzyme-substrate recognition and the development of selective inhibitors. This application is particularly valuable in the discovery of new therapeutic targets and the optimization of enzyme-based assays for high-throughput screening.

Protein Interaction Mapping: The sequence of Ac(1)-Tyr-His-Ile-Tyr-Tyr-Ala-Ser-Leu-Tyr-Gly-Asp-Leu-Gly-Cys(1)-Gly-NH2 serves as a molecular probe in the identification and characterization of protein-binding partners. Its unique arrangement of amino acids enables it to engage in specific interactions with target proteins, facilitating pull-down assays, co-immunoprecipitation, and surface plasmon resonance studies. By mapping these interactions, scientists can decipher the molecular underpinnings of complex biological processes and identify potential modulators of protein function. Such findings contribute to a deeper understanding of cellular machinery and the development of novel research reagents.

Peptide Structure-Activity Relationship (SAR) Analysis: Researchers leverage this peptide to conduct structure-activity relationship studies, where systematic modifications to the sequence or functional groups reveal the determinants of biological activity. By substituting or labeling individual residues, investigators can assess the impact of each amino acid on binding affinity, stability, and functional efficacy. These SAR analyses inform the rational design of improved analogs with enhanced properties, supporting the advancement of peptide-based research tools and the discovery of innovative molecular entities.

Biomarker Discovery and Quantification: The peptide is also integrated into workflows aimed at identifying and quantifying biomarkers in complex biological samples. Its defined structure and detectability make it suitable as an internal standard or calibration reference in quantitative proteomics and mass spectrometry-based assays. By enabling accurate measurement of target analytes, the peptide supports biomarker validation, comparative studies, and the establishment of reliable analytical protocols for basic and translational research.

In summary, Ac(1)-Tyr-His-Ile-Tyr-Tyr-Ala-Ser-Leu-Tyr-Gly-Asp-Leu-Gly-Cys(1)-Gly-NH2 stands out as a multifunctional peptide reagent with significant value across diverse scientific domains. Its applications in signal transduction, enzyme profiling, protein interaction mapping, SAR analysis, and biomarker quantification underscore its versatility and research utility. As a result, it continues to empower investigators in unraveling molecular mechanisms, optimizing experimental systems, and driving innovation in peptide science.

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